A guide system for distal ulna osteotomy correction surgery

Abstract

The present invention discloses a guide plate system for corrective osteotomy of the distal ulna, comprising an ulnar steel plate and an osteotomy guide, the ulnar steel plate and the osteotomy guide being fixedly connected by connecting screws, the ulnar steel plate being sequentially provided with a first steel plate sliding nail hole, a locking nail hole and a pinhole on both sides of the ulnar steel plate, the bottom of the ulnar steel plate being provided with three short osteotomy grooves, the bottom of the osteotomy guide being provided with three long osteotomy grooves respectively connected with the three short osteotomy grooves, the present invention is a guide plate system for corrective osteotomy of the distal ulna, which has a simple structure, a small overall volume and is easy to carry, and through the coordinated use of the ulnar steel plate, the osteotomy guide, the fixing screws and the reduction clamps, the surgical operation is further guaranteed to be carried out reliably and stably, the surgical operation is simple and reliable, the practicality is stronger, the osteotomy size is accurate, the operation time is saved, and the corrective effect of the distal ulnar osteotomy is improved.

Description

Technical Field

[0001] The invention relates to the technical field of distal ulna osteotomy orthopedic surgery, in particular to a distal ulna osteotomy orthopedic surgery guide plate system. Background Art

[0002] Diseases, deformities, and excessive length of the ulna seriously affect normal limb function and require ulna shortening or lengthening surgery. Usually, experienced doctors manually saw off the ulna. This is not only difficult to control the osteotomy length, but also has poor operational stability and takes a long time. It is also easy to cause unevenness on the saw surface, resulting in poor surgical results. Ulna shortening or lengthening surgery requires the use of different surgical tools, which is cumbersome to operate. The osteotomy angle is difficult to control, affecting the surgical results and having poor practicality. Summary of the Invention

[0003] The purpose of the present invention is to provide an osteotomy guide and internal fixation system for distal ulna osteotomy correction surgery to solve the problems raised in the above-mentioned background technology, such as difficulty in controlling the osteotomy length, poor operational stability, long time consumption, easy occurrence of uneven saw surface, uncertain surgical results, cumbersome operation, and poor practicality.

[0004] To achieve the above-mentioned objectives, the present invention provides the following technical solutions: a distal ulna osteotomy corrective surgical guide system, comprising an ulna steel plate and an osteotomy guide, wherein a first central connecting screw hole and a second central connecting screw hole are respectively provided in the middle of the ulna steel plate and the middle of the front of the osteotomy guide, a connecting screw is provided between the first central connecting screw hole and the second central connecting screw hole, the ulna steel plate and the osteotomy guide are fixedly connected by the connecting screw, a first steel plate sliding nail hole, a locking nail hole and a pin hole are sequentially provided on both sides of the ulna steel plate, a second steel plate sliding nail hole is provided at both ends of the front of the osteotomy guide, three short osteotomy grooves are provided at the bottom of the ulna steel plate, and three long osteotomy grooves are provided at the bottom of the osteotomy guide, which are respectively connected to the three short osteotomy grooves.

[0005] Preferably, the two first steel plate sliding nail holes are respectively connected to the two second steel plate sliding nail holes.

[0006] Preferably, fixing screws are provided between the two first steel plate sliding nail holes and the two second steel plate sliding nail holes respectively, and the two fixing screws are both threadedly connected to the ulna.

[0007] Preferably, locking screws are provided in the two locking nail holes, and the two locking screws are threadedly connected to the ulna.

[0008] Preferably, the three short osteotomy grooves are all arranged between the first center connecting screw hole and one of the first steel plate sliding nail holes, and the three long osteotomy grooves are all arranged between the second center connecting screw hole and one of the second steel plate sliding nail holes, and the three short osteotomy grooves and the three long osteotomy grooves are evenly distributed.

[0009] Preferably, both of the needle holes are connected with a fixing needle.

[0010] Preferably, the bottom of the first central connecting screw hole, the bottom of the second central connecting screw hole, the bottom of the first steel plate sliding nail hole, the bottom of the second steel plate sliding nail hole, the bottom of the locking nail hole and the bottom of the pinhole are all provided with scales.

[0011] Preferably, the three short osteotomy grooves and the three long osteotomy grooves are all transverse osteotomy grooves.

[0012] Preferably, the three short osteotomy grooves and the three long osteotomy grooves are all oblique osteotomy grooves.

[0013] Compared with the prior art, the beneficial effects of the present invention are as follows: the osteotomy groove has two forms, oblique and transverse. The oblique osteotomy groove can be used for ulnar shortening, and the transverse osteotomy groove can be used for ulnar lengthening. It can be applied to both ulnar surgeries and is more practical. Through the setting of the ulnar steel plate and the osteotomy guide, it can quickly perform the surgical operation, further improving the effect of the distal ulnar osteotomy correction surgery. The structure is simple, the overall volume is small, and it is easy to carry. Moreover, through the coordinated use of the ulnar steel plate, the osteotomy guide, the fixing screw and the reduction clamp, the surgical operation is further guaranteed to be carried out reliably and stably. The surgical operation is simple and reliable, the osteotomy size is accurate, the operation time is saved, and the effect of the distal ulnar osteotomy correction surgery can be significantly improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of the present invention;

[0015] Figure 2 The structure of the osteotomy guide plate of the present invention is shown in FIG. Figure 1 ;

[0016] Figure 3 The structure of the osteotomy guide plate of the present invention is shown in FIG. Figure 2 ;

[0017] Figure 4 is a schematic diagram of the surgical procedure of the present invention;

[0018] Figure 5 This is a schematic diagram of the present invention after the operation is completed.

[0019] In the figure: 1. Ulna plate; 2. Osteotomy guide; 3. Fixing screw; 4. First center connecting screw hole; 5. First plate sliding nail hole; 6. Locking nail hole; 7. Pin hole; 8. Short osteotomy slot; 9. Long osteotomy slot; 10. Scale; 11. Second center connecting screw hole; 12. Second plate sliding nail hole; 13. Connecting screw; 14. Fixing pin; 15. Ulna; 16. Locking screw. DETAILED DESCRIPTION

[0020] The technical solutions in the embodiments of the present invention will be described clearly and completely below with reference to the accompanying drawings in the embodiments of the present invention.

[0021] See also Figure 1-5 The present invention provides a guide plate system for distal ulnar osteotomy correction surgery, comprising an ulnar steel plate 1 and an osteotomy guide plate 2. A first central connecting screw hole 4 and a second central connecting screw hole 11 are respectively provided in the middle of the ulnar steel plate 1 and the middle of the front face of the osteotomy guide plate 2. A connecting screw 13 is provided between the first central connecting screw hole 4 and the second central connecting screw hole 11. The ulnar steel plate 1 and the osteotomy guide plate 2 are fixedly connected by the connecting screw 13. When the osteotomy guide plate 2 is assembled to the front face of the ulnar steel plate 1 through the connecting screw 13, the ulnar steel plate 1, first plate sliding nail holes 5, locking nail holes 6 and pinholes 7 are sequentially opened on both sides of the ulnar steel plate 1, second plate sliding nail holes 12 are opened at both ends of the front of the osteotomy guide 2, three short osteotomy grooves 8 are opened at the bottom of the ulnar steel plate 1, and three long osteotomy grooves 9 are opened at the bottom of the osteotomy guide 2, which are respectively connected to the three short osteotomy grooves 8. The short osteotomy grooves 8 on the osteotomy guide 2 overlap with the long osteotomy grooves 9 to prevent the osteotomy guide 2 from colliding with the electric oscillating saw. The electric oscillating saw is used to perform osteotomy through the long osteotomy grooves 9.

[0022] The two first steel plate sliding nail holes 5 are respectively connected to the two second steel plate sliding nail holes 12, and a fixing screw 3 is provided between the two first steel plate sliding nail holes 5 and the two second steel plate sliding nail holes 12. The two fixing screws 3 are threadedly connected to the ulna 15. The two fixing screws 3 are passed through the first steel plate sliding nail hole 5 and the second steel plate sliding nail hole 12 and then through the double cortex of the ulna 15 to complete the fixed installation. The osteotomy of the ulna 15 is located between the two fixing screws 3. Use a reduction forceps to clamp the tail of the fixing screw 3, and the fixing screw 3 slides along the first steel plate sliding nail hole 5 and the second plate sliding nail hole 12. The distal end of the ulna 15 slides toward the proximal end through the first steel plate sliding nail hole 5 and the second plate sliding nail hole 12 to complete the osteotomy reduction.

[0023] Both locking screws 16 are provided in the two locking nail holes 6, and both locking screws 16 are threadedly connected to the ulna 15. The two locking screws 16 pass through the locking nail holes 6 and are fixedly connected to the ulna 15 respectively, completing the locking of the ulna steel plate 1 and completing the osteotomy correction surgery.

[0024] The three short osteotomy grooves 8 are all arranged between the first center connecting screw hole 4 and one of the first steel plate sliding nail holes 5, and the three long osteotomy grooves 9 are all arranged between the second center connecting screw hole 11 and one of the second steel plate sliding nail holes 12. The three short osteotomy grooves 8 and the three long osteotomy grooves 9 are evenly distributed, and osteotomy is performed through the osteotomy grooves using an electric oscillating saw.

[0025] The two pinholes 7 are both connected with fixing pins 14 , and the two fixing pins 14 are used to fix the distal and proximal ends of the ulnar steel plate 1 to complete the fixation of the ulnar steel plate 1 .

[0026] The bottom of the first center connecting screw hole 4, the bottom of the second center connecting screw hole 11, the bottom of the first steel plate sliding nail hole 5, the bottom of the second steel plate sliding nail hole 12, the bottom of the locking nail hole 6 and the bottom of the needle hole 7 are all provided with scales 10. The displacement is accurately controlled by the scales 10 to improve surgical accuracy.

[0027] The three short osteotomy grooves 8 and the three long osteotomy grooves 9 are all transverse osteotomy grooves, and the three short osteotomy grooves 8 and the three long osteotomy grooves 9 are all oblique osteotomy grooves. The ulnar steel plate 1 and the osteotomy guide plate 2 are both provided with osteotomy grooves. The osteotomy grooves are set to be transverse osteotomy grooves and oblique osteotomy grooves. The transverse osteotomy grooves are used for ulnar lengthening surgery, and the oblique osteotomy grooves are used for ulnar shortening surgery.

[0028] When using the embodiment of the present application: when using, first place the ulnar steel plate 1 on the palmar side of the distal end of the ulna, and use two fixing pins 14 to fix the proximal and distal ends of the ulnar steel plate 1, then assemble the osteotomy guide 2 to the front of the ulnar steel plate 1 through the connecting screws 13, and then pass the two fixing screws 3 through the double cortex of the ulna 15 to complete the fixed installation. After the fixation is completed, osteotomy is performed. The ulnar steel plate 1 and the osteotomy guide 2 are respectively provided with three short osteotomy grooves 8 and three long osteotomy grooves 9. The three short osteotomy grooves 8 coincide with the three long osteotomy grooves 9 respectively. The three short osteotomy grooves 8 and the three long osteotomy grooves 9 are all osteotomy grooves, which can complete the osteotomy size between 2mm and 4mm. The osteotomy grooves are designed in two forms: oblique and transverse. The oblique osteotomy groove is used for ulnar shortening, and the transverse osteotomy groove is used for ulnar lengthening. After the ulnar steel plate 1 and the osteotomy guide 2 are installed and fixed, an electric oscillating saw is used to cut The osteotomy is performed in the bone groove. After the osteotomy target is completed, the osteotomy block is removed from the side of the osteotomy guide 2, and the tail ends of the two fixing screws 3 are clamped with a reduction forceps. The fixing screws 3 are slid along the first steel plate sliding nail hole 5 and the second steel plate sliding nail hole 12 to make the distal end of the ulna 15 slide proximally to complete the osteotomy reduction. The osteotomy guide 2 is removed, and the osteotomy end is passed through the oblique screw hole to perform vertical osteotomy end screw fixation. The locking screws 16 are implanted in the two locking nail holes 6, and the fixing pins 14 are removed to complete the osteotomy correction surgery. When performing osteotomy lengthening surgery, the intraoperative operation is the opposite. After completing the fixation of the osteotomy guide 2, the ulna 15 is cut off through the transverse osteotomy groove, and the tail ends of the two fixing screws 3 are clamped with a special reduction forceps to extend the ulna 15 to the required size, and then the fixing screws 3 and the implanted locking screws 16 are tightened. Bone is taken from the ilium and implanted as needed to complete the surgery.

[0029] 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 scope of protection of the present invention.

Claims

1. A guide plate system for distal ulnar osteotomy correction surgery, comprising an ulnar steel plate (1) and an osteotomy guide plate (2), characterized in that: The middle part of the ulnar steel plate (1) and the middle part of the front of the osteotomy guide plate (2) are respectively provided with a first central connecting screw hole (4) and a second central connecting screw hole (11); a connecting screw (13) is provided between the first central connecting screw hole (4) and the second central connecting screw hole (11); the ulnar steel plate (1) and the osteotomy guide plate (2) are fixedly connected by the connecting screw (13); the ulnar steel plate (1) is provided with a first steel plate sliding nail hole (5), a locking nail hole (6) and a pinhole (7) on both sides of the ulnar steel plate (1); the second steel plate sliding nail hole (12) is provided at both ends of the front of the osteotomy guide plate (2); the bottom of the ulnar steel plate (1) is provided with three short osteotomy grooves (8); the bottom of the osteotomy guide plate (2) is provided with three long osteotomy grooves (9) respectively connected to the three short osteotomy grooves (8).

2. The guide plate system for distal ulna osteotomy correction surgery according to claim 1, characterized in that: The two first steel plate sliding nail holes (5) are respectively connected to the two second steel plate sliding nail holes (12).

3. The guide plate system for distal ulnar osteotomy correction surgery according to claim 2, characterized in that: A fixing screw (3) is provided between the two first steel plate sliding nail holes (5) and the two second steel plate sliding nail holes (12), and the two fixing screws (3) are both threadedly connected to the ulna (15).

4. The guide plate system for distal ulna osteotomy correction surgery according to claim 1, characterized in that: The two locking nail holes (6) are each provided with a locking screw (16), and the two locking screws (16) are both threadedly connected to the ulna (15).

5. The guide plate system for distal ulna osteotomy correction surgery according to claim 1, characterized in that: The three short osteotomy grooves (8) are all arranged between the first central connecting screw hole (4) and one of the first steel plate sliding nail holes (5), and the three long osteotomy grooves (9) are all arranged between the second central connecting screw hole (11) and one of the second steel plate sliding nail holes (12). The three short osteotomy grooves (8) and the three long osteotomy grooves (9) are evenly distributed.

6. The guide plate system for distal ulna osteotomy correction surgery according to claim 1, characterized in that: Both of the two needle holes (7) are connected with a fixing needle (14).

7. The guide plate system for distal ulna osteotomy correction surgery according to claim 1, characterized in that: The bottom of the first central connecting screw hole (4), the bottom of the second central connecting screw hole (11), the bottom of the first steel plate sliding nail hole (5), the bottom of the second steel plate sliding nail hole (12), the bottom of the locking nail hole (6) and the bottom of the pinhole (7) are all provided with scales (10).

8. The guide plate system for distal ulna osteotomy correction surgery according to claim 1, characterized in that: The three short osteotomy grooves (8) and the three long osteotomy grooves (9) are all transverse osteotomy grooves.

9. The guide plate system for distal ulna osteotomy correction surgery according to claim 1, characterized in that: The three short osteotomy grooves (8) and the three long osteotomy grooves (9) are all oblique osteotomy grooves.

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