Steel plate cable bundling and fixing device for fracture around hip joint prosthesis

Abstract

The invention relates to a hip joint prosthesis peripheral fracture steel plate cable binding and fixing device which comprises a head portion at the near end and a body portion at the far end, and the head portion and the body portion are integrally arranged. The inner surfaces of the head part and the body part are arc-shaped curved surfaces which are tightly attached to the outer surface of the thighbone of a human body; the head is of an anatomical structure matched with the physiological appearance of the outer side face of the greater trochanter of the femur. The body part is of an anatomical structure matched with the physiological shape of a thighbone body at the proximal end of the thighbone; at least one clamping hook is arranged at the near end of the head part, and the clamping hook is in an anatomical radian shape attached to the outer side of the top end of the major trochanter; and the body part is provided with a plurality of lock hole structures. The device is placed on the outer side face of the femur with the vertex of the greater trochanter as a mark; the device is suitable for patients who fail in internal fixation in a proximal femur fracture operation and need revision and suffer from fracture around a femur prosthesis after a joint replacement operation, at least one clamping hook is specially arranged at the proximal end of the head, a fracture block can be grabbed through the clamping hook, and reduction failure is avoided.

Description

Technical Field

[0001] The invention relates to the field of medical consumables, in particular to a hip joint prosthesis peri-fracture steel plate cable bundling and fixing device. Background Art

[0002] With the increase in the elderly population and the development of artificial joint replacement, the number of artificial hip replacements has increased year by year, and various complications after hip replacement have continued to appear. Periprosthetic fractures have gradually attracted people's attention. The literature reports that its incidence rate is 0.1%~3.2%. Femoral periprosthetic fractures are common complications and causes of revision after total hip replacement, accounting for about 3.5% of revision surgeries. In recent years, with the increasing degree of population aging and people's increasing demands for quality of life, the number of total hip replacement surgeries will further increase, and the number of patients with femoral periprosthetic fractures has also tended to increase year by year.

[0003] For many patients, periprosthetic fractures are caused by minor trauma or falls, and trauma is often only a trigger. Most patients already have potential bone dysplasia before the occurrence. The fundamental cause of periprosthetic fractures in hip replacement is the weakening of bone strength or the increase of local stress in bone tissue caused by other pathological factors. Specific related risk factors include advanced age, osteoporosis, rheumatoid arthritis, prosthesis loosening, Parkinson's disease, Paget's disease, osteolysis, bone defects, etc. The worse the bone condition, the higher the risk of periprosthetic fractures in weak areas of the bone cortex. Loosening of the prosthesis will significantly increase the local stress of the bone tissue. Literature reports that 1 / 3~3 / 4 of patients with periprosthetic fractures are related to prosthesis loosening. In addition, surgical techniques and the selection and fixation of the prosthesis also have a great impact on the occurrence of periprosthetic fractures.

[0004] By classifying periprosthetic femoral fractures, the stability of the femoral prosthesis can be accurately determined, providing a basis for selecting treatment options. The most commonly used classification is the Vancouver classification, which is based on fracture site, prosthesis stability, and bone mass. Vancouver A type refers to fractures occurring in the femoral trochanteric region, which are subdivided into AG type (greater trochanter fracture) and AL type (lesser trochanter fracture). Vancouver B type is a fracture around the femoral stem, which is further divided into 3 types based on prosthesis stability and bone mass: B1 type, prosthesis stability, no obvious bone loss; B2 type, prosthesis loosening, but no obvious bone loss; B3 type, prosthesis loosening, and severe bone loss. Vancouver C type is a fracture occurring far from the tip of the prosthesis.

[0005] 1. Vancouver A fracture When there is no obvious displacement of AG fractures, conservative treatment is feasible, including limiting weight bearing, bed rest, and keeping the affected hip in an abducted position to reduce the pull of the abductor muscles; if the fracture is significantly displaced, open reduction and internal fixation surgery can be performed, and wires, screws, or hook plates can be used for fixation depending on the specific circumstances of the fracture. Whether AG fractures require surgical treatment depends on the displacement of the fracture, the patient's clinical symptoms, and functional requirements.

[0006] AL fractures that do not involve the femoral calcar can be treated conservatively. If the fracture involves the medial support and the femoral calcar, it may lead to loosening of the prosthesis stem. In this case, cerclage fixation of the fracture or even prosthesis revision is required. Proximal femoral periprosthetic fractures involving the lesser trochanter are uncommon. Since this type of fracture is an avulsion fracture of the iliopsoas muscle attachment and does not destroy the stability of the prosthesis stem, non-surgical treatment can be selected.

[0007] 2. Vancouver B fracture For Vancouver B fractures involving the femoral stem, different fixation methods can be selected depending on whether the prosthesis is stable and the degree of bone loss.

[0008] Vancouver B1 fractures can be treated with fracture reduction and internal fixation, and different internal fixation materials such as locking plates and cables can be selected according to the situation. However, there is still much controversy about the best treatment method, especially the use of allogeneic bone plates, cables and locking screws.

[0009] Patients with Vancouver B2 fractures require revision surgery when their femoral prosthesis loosens. The prostheses available for revision include biological porous coated cylindrical stems, tapered stems, and bone cement stems.

[0010] Vancouver B3 fractures require both loosening and bone loss, requiring revision with an extended stem or revision stem, while bone loss requires bone grafting and fixation. For Vancouver B3 fractures, proximal fixation is not appropriate if there is not enough proximal bone support. However, there is a high risk of failure with internal fixation for Vancouver B3 fractures. Treatment options for Vancouver B3 fractures vary depending on the patient's age and activity level. For most patients, revision surgery is necessary, and the use of a cementless tapered stem provides the greatest stability.

[0011] 3. Vancouver C fracture Since Vancouver C-type fractures occur at a site far from the tip of the prosthesis, open reduction and internal fixation is the preferred treatment. When the fracture does not affect the stability of the prosthesis, fixation with memory alloy embrasures, locking plates, etc. can be considered. For distal femoral fractures that are more than 6 cm away from the tip of the femoral prosthesis stem, the use of retrograde femoral nails is also a good treatment option. If the fracture site is close to the distal end or involves the femoral prosthesis, and if intramedullary fixation is not suitable, condylar plate fixation or minimally invasive fixation system plates can be used. For distal femoral prosthesis fractures, it is still necessary to determine whether the femoral prosthesis is loose, otherwise simple internal fixation may be ineffective. Compared with traditional plates, the reoperation rate of Vancouver C-type fractures treated with locking plates is lower.

[0012] Nonsurgical treatment: includes close observation or protected weight-bearing, traction, plaster or brace.

[0013] ① Indications: There are few absolute indications; relative indications include patients with stable prostheses, non-displaced fractures, and patients with surgical contraindications; ② Close observation or weight bearing under protection: incomplete fractures of the proximal femur found during or early after surgery; ③ Traction: There are many complications: complications of long-term bed rest, nonunion of fractures, malunion, limb shortening, loosening of prostheses, etc.; it is only suitable for patients with poor physical fitness and who cannot tolerate surgery; skin traction can be used for temporary fixation before surgery or before plaster fixation. For the long-term treatment of unstable fractures, bone traction is better than skin traction; ④ Plaster or brace: Suitable for periprosthetic fractures with insignificant displacement. It can be used after 4-7 weeks of traction, or it can be used for fixation with plaster at the beginning, usually with long leg plaster or hip herringbone plaster.

[0014] Surgical treatment: There are three types of intramedullary fixation (intramedullary nail, revision surgery), extramedullary fixation (wire cable cerclage fixation, plate screw) and combined fixation. Indications: Generally speaking, except for non-displaced Vancouver A fractures with stable prostheses, which can be treated non-surgically, all fractures should be treated surgically if there are no contraindications to surgery; strong indications include loosening or breakage of the prosthesis, obvious angular deformity of the fracture, and displaced or comminuted fractures.

[0015] Retrograde intramedullary nailing can be used to treat fractures that occur far from the tip of the prosthesis. This method has relatively few indications, and the surgical operation needs to pass through the knee joint, and stress fractures are prone to occur after surgery. Cable wire cerclage fixation is generally used to treat spiral or long oblique fractures around the prosthesis stem with stable prosthesis. It has poor mechanical strength and is rarely used alone. It is generally used in combination with steel plates, screws, allogeneic bone plates or revision prostheses; this fixation method can be considered for fissure fractures that occur in the proximal femur when the prosthesis stem is implanted. The disadvantage is that the cable wire is easy to cause cutting, loosening, or excessive tightening force may cause the cable wire to break. Steel plate screw fixation is a more commonly used internal fixation surgical method: However, since the femoral medullary cavity is occupied by the femoral stem prosthesis, it is impossible to perform bicortical screw fixation, resulting in insufficient holding force; the anatomical structure of the proximal femoral greater trochanter is quite different, and the steel plate is difficult to fit.

[0016] It is known that CN 111281517 A discloses a hip fracture steel plate, which also discloses a solution for auxiliary fixation by winding cables. (A similar solution is also disclosed in CN208625836U); the above solution was considered in the early stage, but it was found that the above solution could not be implemented during the actual design. There are two important reasons for this: (1) the locking structure is set on the steel plate, but the thickness of the steel plate itself cannot be designed to design the locking structure; specifically, the fracture steel plate has thickness requirements, and the patent disclosure Figure 3 It can be seen from the figure that in order to accommodate the cable passing through, a thickened steel plate is required; in addition, a thickness is required to be left for the threaded fitting of the locking member 31; the combination of these two points will greatly increase the thickness of the steel plate. Figure 2 It can be seen that the cable covers the entire longitudinal range of the steel plate, that is, the thickness of the entire area of ​​the steel plate is far greater than the thickness of the common steel plates currently, and steel plates of this thickness cannot be used. (2) The steel plate itself needs to be provided with nail holes to lock the steel plate and the femur. In order to cooperate with the locking cable, the public patent has added several screw holes, which invisibly reduces the strength of the entire steel plate. The purpose of the steel plate itself is to fix the femur. If the strength of the steel plate cannot be guaranteed, it may cause the deformation of the steel plate after surgery, resulting in the failure of the operation, which invisibly increases the pain and burden of the patient. Summary of the invention

[0017] The purpose of the present invention is to provide a hip joint periprosthetic fracture steel plate and cable binding fixation device, which is placed on the lateral side of the femur with the apex of the greater trochanter as a mark; it is suitable for patients who need revision after failed internal fixation surgery for proximal femoral fractures and patients who suffer from femoral periprosthetic fractures after joint replacement.

[0018] The present invention is implemented through the following technical solutions: a hip joint prosthesis periarticular fracture steel plate cable bundling and fixing device comprises a proximal head and a distal body, wherein the head and the body are integrally arranged; The inner surfaces of the head and body are arc-shaped surfaces that fit closely with the outer surface of the human femur; the head is an anatomical structure that matches the physiological shape of the outer side of the greater trochanter of the femur; the body is an anatomical structure that matches the physiological shape of the femoral body at the proximal end of the femur; The proximal end of the head is provided with at least one hook, and the hook has an anatomical arc shape that fits the outer side of the top of the greater trochanter; The body is provided with a plurality of locking hole structures; wherein the plurality of locking structures are further divided into central nail holes and non-central nail holes according to their positions; the central nail holes are all located on the midline of the body and are distributed in sequence from far to near; the non-central nail holes are arranged on the left and right sides of the midline of the body and the non-central nail holes on the left and right sides are distributed in sequence from far to near; It also includes a cable, wherein the cable is a main line formed by twisting multiple single-strand cables in the same direction to the right with a central strand as the axis, a ball is welded at one end of the main line, and the other end of the main line is connected to a pressure casing; The single-strand cable is made of multiple metal wires twisted in the same direction with a central wire as the axis, and the material of the metal wire is a cobalt-based alloy; Wherein, a locking cap head is provided at the central nail hole, the locking cap head locks the body on the femoral body, and a hole for allowing a single-strand cable to pass through is provided on the locking cap head, and the cable passes through the hole to bind the body to the femoral body; or at least one pair of cable holes is opened on the body; any pair of cable holes includes two openings, and the two openings are distributed on the left and right, and the cable passes through the cable holes to bind the body to the femoral body; It also includes a buckle, which is a metal block, and the upper and lower parts of the metal block are bent backwards along the center line; the middle parts of the upper and lower edges of the metal block are provided with grooves, so that the metal block forms a structure with large left and right ends and narrowed in the middle, and two through holes that penetrate in the left and right directions and are parallel to each other are provided in the middle of the metal block; One end of the cable with a pressure sleeve passes through one of the through holes of the buckle, and the ball at the other end of the cable clamps the through hole port; the cable wraps around the broken end of the bone and passes through the other through hole of the buckle; by tightening the cable and then clamping the buckle with a clamp, the two through holes are deformed to fix the cable.

[0019] Compared with the previous technology, the beneficial effects of the present invention are: 1. At least one hook is provided at the proximal end of the head, through which the fracture fragment can be grasped to avoid failure of reduction; at the same time, the present invention is equipped with a cable hole, which is matched with a cable to realize the combined bundling and fixation of the present invention and the cable, thereby increasing the strength of fixation; in addition, by placing the cable hole fixing structure on the side, the improvement of the steel plate is reduced, and it is also convenient for the operator to operate.

[0020] 2. The present invention is equipped with a non-central nail hole to achieve double cortical fixation with better stability.

[0021] 3. The cable is made of cobalt-based alloy, which effectively improves the fixation strength and can be used for CT and MRI examinations without causing artifacts.

[0022] 4. Side wings are added, and universal screw holes are configured on the side wings; the fracture fragments can be covered by the side wings, and screws can be implanted for enhanced fixation according to fixation needs. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the structure of Embodiment 1 of the present invention; Figure 2 for Figure 1 Side view of Figure 3 This is a schematic diagram of the structure of Embodiment 2 of the present invention; Figure 4 for Figure 3 Side view of Figure 5 This is a schematic diagram of the structure of Embodiment 3 of the present invention; Figure 6 for Figure 5 Side view of Figure 7 It is a schematic diagram of the structure of a flat head screw; Figure 8 is a schematic diagram of the cable structure; Fig. 9 is a cross-sectional view of the cable; Fig.10 is a schematic diagram of the structure of the buckle; Fig.11 for Fig.10 Side view of Fig.12 A state diagram for the use of cables and buckles; Fig.13 It is a schematic diagram of the structure of the cable cap type I; Fig.14 It is a schematic diagram of the structure of cable cap type II.

[0024] Fig.15 This is a reference diagram of the use status of Example 1; Fig.16 for Fig.15 Side view of Fig.17 This is a reference diagram of the use status of Example 2; Fig.18 for Fig.17 Side view of Fig.19 This is a reference diagram of the use status of Example 3; Fig. 20 for Fig.19 Side view of.

[0025] Explanation of reference numerals: 1 head, 11 hook, 14 wing plate, 141 universal screw hole, 2 body, 21 cable hole, 22 central nail hole, 221 screw hole, 222 combining hole, 23 non-central nail hole, 3 flat head screw, 31 screw rod, 32 nail cap, 33 flat head, 34 thread, 4 cable, 41 welding ball, 42 pressure sleeve, 5 buckle, 51 groove, 52 through hole, 6 cable cap head type I, 61 cap head, 62 guide rod, 7 cable cap head type II, 71 hexagonal cap head, 72 threaded rod, 9 human femur, 91 greater trochanter, 92 femoral body. DETAILED DESCRIPTION

[0026] The present invention is described in detail below in conjunction with the accompanying drawings: like Figure 1-6 As shown: a hip joint prosthesis periarticular fracture steel plate cable binding and fixing device, comprising a proximal head 1 and a distal body 2, wherein the head 1 and the body 2 are integrally arranged; The inner surfaces of the head 1 and the body 2 are arc-shaped surfaces that fit closely with the outer surface of the human femur 9; the head 1 is an anatomical structure that matches the physiological shape of the outer side of the greater trochanter 91 of the femur; the body 2 is an anatomical structure that matches the physiological shape of the femoral body 92 at the proximal end of the femur; At least one hook 11 is disposed at the proximal end of the head 1, and the hook 11 has an anatomical arc shape that fits the outer side of the top of the greater trochanter; The body 2 is provided with a plurality of locking hole structures; wherein the plurality of locking structures are further divided into central nail holes 22 and non-central nail holes 23 according to their positions; the central nail holes 22 are all located on the midline of the body and are distributed in sequence from far to near; the non-central nail holes 23 are arranged on the left and right sides of the midline of the body and the non-central nail holes 23 on the left and right sides are distributed in sequence from far to near.

[0027] Generally speaking, the non-central nail holes 23 on the left and the non-central nail holes 23 on the right are staggered in the far-near direction.

[0028] The non-center nail hole 23 mentioned above is a locking threaded hole.

[0029] In order to match the locking threaded hole of the non-center nail hole 23, the present invention also includes a flat head screw 3, which includes a screw rod 31 and a nail cap 32. The nail cap 32 is connected to the tail end of the screw rod 31, the head end of the screw rod 31 is a flat head 33, and the outer periphery of the nail cap 32 is provided with a thread 34.

[0030] like Figure 7As shown: the locking threaded hole and the flat head screw 3 are used together. Generally speaking, the screw rod 31 of the flat head screw 3 is shorter and is suitable for unilateral cortical fixation; the front end of the screw rod 31 is designed with a flat head, which will not cause impact on the femoral stem prosthesis in the femoral medullary cavity; the screw cap is designed with a thread, which can be locked and fixed together with the locking threaded hole.

[0031] The body is designed with a non-central screw hole 23. Compared with the conventional steel plate with a central screw hole design, since the femoral stem prosthesis occupies the medullary cavity, it is impossible to implant a longer screw into the contralateral cortex, and the holding effect is poor. The design of the non-central screw hole allows the implantation of a longer screw into the contralateral cortex, and a double cortical screw is performed, which increases the stability of the steel plate fixation.

[0032] The present invention can be derived into different embodiments according to the style of the central nail hole and the position of the cable hole: Example 1

[0033] like Figure 1 , 2 , 15, 16: the central nail hole 22 of the present invention is a combination hole 222. In this embodiment, no cable hole is configured.

[0034] In order to ensure that the body 2 can cooperate with the first cable, a locking cap is provided at the central nail hole 22. The function of the locking cap is to increase the strength of the bone plate and prevent the growth of soft tissue, so as to facilitate the removal and internal fixation after surgery; at the same time, the locking cap locks the body 2 on the femoral body 92. A hole for a single cable to pass through is provided on the locking cap, and the cable 4 passes through the hole to bind the body 2 to the femoral body 92. This solution is the best solution and has the least irritation to the soft tissue.

[0035] The locking cap head is divided into the following two types according to the structure: like Fig.13 As shown: the cable cap head type I 6 includes a cap head 61 and a guide rod 62, and the cap head 61 is provided with a horizontally penetrating hole; the guide rod 62 is placed in the central nail hole 22 of the body 2, and the cable 4 passes through the hole on the cap head and is fixed by tightening the cable.

[0036] like Fig.14 As shown: the cable cap II type 7 includes a hexagonal cap head 71 and a threaded rod 72, and any two opposite sides of the hexagonal cap head 71 are provided with transversely penetrating holes; the threaded rod 72 is threadedly connected to the central nail hole 22 of the body 2, and the cable 4 passes through the hole on the hexagonal cap head and is fixed by the cable.

[0037] The main difference between the cable cap head type I and the cable cap head type II is that the cable cap head type I has no threads, while the cable cap head type II has threads; the threaded design has multiple cable holes (taking the hexagonal cap head 71 as an example, there are three cable holes), which is convenient for selecting the most suitable final cable to be fixed vertically to the bone plate. Example 2

[0038] like Figure 3 , 4 , 17, and 18: the central nail hole 22 is a screw hole 221. Here, at least one pair of cable holes 21 is provided on the body 2, and any pair of cable holes 21 includes two openings, which are distributed on the left and right. The two openings are provided in the middle of the body 2, but this design requires the body to be thicker, which may cause greater irritation to the soft tissue. Example 3

[0039] like Figure 5 , 6 , 19, and 20: The central nail hole 22 is a screw hole 221. At least one pair of cable holes 21 is provided on the body 2, and any pair of cable holes 21 includes two openings, which are distributed on the left and right. The two openings are respectively provided on the inclined plates on both sides of the body 2, and the cable passes through the side and then passes through the surface of the body 2 to the other side. This design can minimize the thickness of the body 2 and reduce irritation to the skin and soft tissue.

[0040] like Figure 8 , 9 As shown: Based on embodiments 2 and 3, it further includes a cable 4, wherein the cable 4 is a main line formed by twisting multiple single-strand cables in the same direction to the right with the central strand as the axis, a ball 41 is welded at one end of the main line, and the other end of the main line is connected to a pressure casing 42; The single-strand cable is made of multiple metal wires twisted in the same direction to the right with a central wire as the axis, and the material of the metal wire is cobalt-based alloy.

[0041] In actual design, the cable structure is 8×7+1×19 cable, which first uses multi-wire (18 wires) to twist in the same direction with the center wire as the axis to form a single-strand cable, and then twists multiple strands (8 strands) to the same direction with the center strand as the axis to form the main line, and finally welds a small ball at one end of the main line, and forms a pressure sleeve at the other end. The cable adopts double twist (multi-strand), the twisting method is the same direction right twist, and the cross-section shape of the strand is round strand.

[0042] like Fig.10 , 11As shown, it also includes a buckle 5, which is a metal block, and the upper and lower parts of the metal block are bent backwards along the midline; the middle parts of the upper and lower edges of the metal block are provided with grooves 51, so that the metal block forms a structure with large ends on the left and right and narrowed in the middle, and two through holes 52 that penetrate in the left and right directions and are parallel to each other are provided in the middle of the metal block. When designing the buckle, a rounded chamfer is made on the edge to minimize irritation to the skin and soft tissue.

[0043] The specific use of the buckle is as follows: one end of the cable 4 with the pressure sleeve 42 passes through one of the through holes of the buckle, and the ball 41 at the other end of the cable 4 clamps the through hole port. The cable is wrapped around the broken end of the bone and passed through the other through hole of the buckle, the cable is tightened, and then the buckle is clamped with a clamp to deform the two through holes and fix the cable 4; finally, the excess cable length is cut off, and the cable and the buckle are fixed (such as Fig.12 as shown).

[0044] A plurality of wing plates 14 extending outward are provided on both sides of the head 1, and universal screw holes 141 are provided at the ends of the wing plates 14. The wing plates 14 can cover the bone fragments, and screws can be implanted for enhanced fixation according to fixation needs.

[0045] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A cable binding and fixing device for hip joint periprosthetic fracture, characterized in that: It comprises a proximal head (1) and a distal body (2), wherein the head (1) and the body (2) are integrally arranged; The inner surfaces of the head (1) and the body (2) are arc-shaped curved surfaces that fit closely with the outer surface of the human femur (9); The head (1) is an anatomical structure adapted to the physiological shape of the outer side of the greater trochanter (91) of the femur; the body (2) is an anatomical structure adapted to the physiological shape of the femoral body (92) at the proximal end of the femur; At least one hook (11) is provided at the proximal end of the head (1), and the hook (11) has an anatomical arc shape that fits the outer side of the top end of the greater trochanter; The body (2) is provided with a plurality of locking hole structures; wherein the plurality of locking structures are further divided into central nail holes (22) and non-central nail holes (23) according to their positions; the central nail holes (22) are all located at the midline of the body and are distributed in sequence from far to near; the non-central nail holes (23) are respectively arranged at the left and right sides of the midline of the body, and the non-central nail holes (23) on the left and right sides are distributed in sequence from far to near; It also includes a cable (4), wherein the cable (4) is a main line formed by twisting a plurality of single-strand cables in the same direction to the right with a central strand as the axis, a ball (41) is welded to one end of the main line, and the other end of the main line is connected to a pressure casing (42); The single-strand cable is made of multiple metal wires twisted in the same direction with a central wire as the axis, and the material of the metal wire is a cobalt-based alloy; Wherein, a locking cap is provided at the central nail hole 22, the locking cap locks the body (2) on the femoral body (92), and a hole for allowing a single-strand cable to pass through is provided on the locking cap, and the cable (4) passes through the hole to bind the body (2) to the femoral body (92); or At least one pair of cable holes (21) is formed on the body (2); any pair of cable holes (21) comprises two openings, the two openings are distributed on the left and right, and the cable (4) passes through the cable holes (21) to bind the body (2) to the femoral body (92); It also includes a buckle (5), which is a metal block, the upper and lower parts of which are bent backwards along the center line; the middle parts of the upper and lower edges of the metal block are provided with grooves (51), so that the metal block has a structure with large left and right ends and a narrow middle part, and two through holes (52) that penetrate in the left and right directions and are parallel to each other are provided in the middle part of the metal block; One end of the cable (4) with the pressure sleeve (42) passes through one of the through holes (52) of the buckle (5), until the ball (41) at the other end of the cable (4) clamps the end of the through hole (52); the cable (4) wraps around the broken end of the bone and passes through the other through hole (52) of the buckle (5); the cable (4) is tightened and then the buckle (5) is clamped using a clamp, so that the two through holes (52) are deformed and the cable (4) is fixed.

2. The hip joint prosthesis peri-fracture steel plate cable binding and fixing device according to claim 1, characterized in that: The locking cap head is a cable cap head type I (6) comprising a cap head (61) and a guide rod (62), wherein the cap head (61) is provided with a hole extending transversely therethrough; the guide rod (62) is placed in a central nail hole (22) of the body (2), and the cable (4) passes through the hole on the cap head (61).

3. The hip joint prosthesis peri-fracture steel plate cable binding and fixing device according to claim 1, characterized in that: The cable cap type II (7) comprises a hexagonal cap (71) and a screw (72), wherein any two opposite sides of the hexagonal cap (71) are provided with transversely penetrating holes; the screw portion and the central nail hole (22) of the body (2) are threadedly connected, and the cable (4) passes through the hole on the hexagonal cap.

4. The hip joint prosthesis peri-fracture steel plate cable binding and fixing device according to claim 1, characterized in that: The non-central nail hole (23) on the left side and the non-central nail hole (23) on the right side are staggered in the distal and proximal directions.

5. The hip joint prosthesis peri-fracture steel plate cable binding and fixing device according to claim 1, characterized in that: The non-central nail hole (23) is a locking threaded hole.

6. The hip joint prosthesis peri-fracture steel plate cable binding and fixing device according to claim 5, characterized in that: It also includes a flat head screw (3) that cooperates with the non-central nail hole (23), the flat head screw (3) including a screw rod (31) and a nail cap (32), the top cap is connected to the rear end of the screw rod (31), the head end of the screw rod (31) is a flat head (33), and the outer periphery of the top cap is provided with a thread (34).

7. The hip joint prosthesis peri-fracture steel plate cable binding and fixing device according to claim 1, characterized in that: The central nail hole (22) is a combining hole (222).

8. The hip joint prosthesis peri-fracture steel plate cable binding and fixing device according to claim 1, characterized in that: The central nail hole (22) is a screw hole (221).

9. The hip joint prosthesis peri-fracture steel plate cable binding and fixing device according to claim 1, characterized in that: A plurality of wing plates (14) extending outwards are provided on both side edges of the head (1), and universal screw holes (141) are provided at the ends of the wing plates (14).

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