97 results about "Osteotomy guide" patented technology

The invention discloses a hip replacement lower limb equal-length control system and method based on individualized three-dimensional modeling. The hip replacement lower limb equal-length control system comprises a data preprocessing module, a medical image processing module, a dynamic implantation simulation module, a biomechanical analysis module, a guide plate generation module and a postoperative evaluation module. The method comprises the following steps: acquiring bilateral lower limb CT data and carrying out multi-modal registration; segmenting a skeleton structure by using a deep learning model, and constructing a three-dimensional model; reconstructing a complete sphere through affected side femoral head multi-plane fitting, and determining a target femoral head center in combination with uninjured side mirror image data; dynamically adjusting the space posture of the prosthesis to enable the center of the prosthesis head to coincide with the center of the target; performing finite element analysis to optimize stress distribution; and generating a 3D printing file of the individualized osteotomy guide plate and the positioning pointer. According to the method, preoperative accurate planning, intraoperative real-time control and postoperative quantitative evaluation are achieved, the operation precision is effectively improved, and complications of unequal lengths of lower limbs are avoided.

Instruments, devices, systems and methods for maintaining, correcting and / or fusing joint deformities are disclosed. Guide systems including an alignment block and a cut guide removably coupled to the alignment block. Osteotomy guides including an alignment block and a cut guide removably coupled to the alignment block. Osteotomy guides including a body, a first alignment member coupled to and extending away from a superior surface of the body, and a second alignment member coupled to and extending away from an inferior surface of the body. Methods of assembling and using the osteotomy guides and systems for maintaining, correcting and / or fusing joint deformities are also disclosed.

The invention discloses a set instrument for acetabulum tenon-and-mortise structural bone grafting and application, relates to the field of orthopedic surgical instruments, adopts a cylindrical ring file, a wedge-shaped angle file, a hollow trephine and a wedge-shaped osteotomy guide plate as the set instrument for acetabulum tenon-and-mortise structural bone grafting, and introduces a tenon-and-mortise structure mechanical embedding principle of Chinese traditional woodworking science into the field of acetabulum reconstruction. According to the acetabular cup prosthesis, a mortise and tenon structural bone grafting of an autologous femoral head is adopted, a Mortia and Tenon Bone Grafting technology (Mortia and Tenon Bone Grafting, MTBG) is innovatively put forward, an acetabular bone groove and a bone grafting block which are matched are prepared in a standardized mode, acetabular defects are embedded and filled through the accurately matched bone block, and the coverage rate and initial stability of the acetabular cup prosthesis are remarkably increased, and the bone fusion prospect of the acetabular cup prosthesis is remarkably improved; the hip joint function of the patient is obviously improved, pain is relieved, the walking ability is improved, and the life quality is improved; the invention provides a reliable and efficient new structural bone grafting technology, and the safety and long-term effect of DDH acetabulum reconstruction can be improved.

The invention provides a method for designing an osteotomy surface of an osteotomy guide plate, which belongs to the field of medical instruments and comprises the following steps of: establishing an xoz coordinate system in a sagittal view image on a three-dimensional bone model, and establishing a yoz coordinate system in a coronal view image on the three-dimensional bone model; in the three-dimensional coordinate system, on the basis that the highest point of the normal tibia part is a point P1, the osteotomy surface S1 passes through the point P1 and is parallel to the xoy surface, the spatial position of the osteotomy surface S1 in the three-dimensional coordinate system is obtained; an osteotomy line L1 is determined in a sagittal image, an osteotomy line L2 is determined in a coronal image, and the spatial position of an osteotomy surface S2 in a three-dimensional coordinate system is obtained based on the osteotomy line L1 and the osteotomy line L2; the first osteotomy surface and the second osteotomy surface of the osteotomy guide plate are set according to the 3D printing technology in combination with the relative position relation of the osteotomy surface S1 and the osteotomy surface S2, the osteotomy guide plate is obtained, the osteotomy guide plate is designed according to the osteotomy plane equation, and operation errors are reduced.

This invention discloses a guide plate device for spinal osteotomy and correction. Each first support member is fixed to the first guide plate body for connection with screws. The first guide plate body has a first window for locating the spinal laminectomy area. A rib resection groove is formed at the edge of the first window to determine the rib resection area. There are two rib resection grooves, arranged opposite each other on both sides of the first window. Each second support member is fixed to the second guide plate body for connection with screws. The second guide plate body has a second window for locating the pedicle osteotomy guide plate's resection area. There are two second windows, arranged opposite each other. The spinal laminectomy guide plate and the pedicle osteotomy guide plate share a single screw assembly. This invention avoids errors in judging the resection area based on human experience, and also avoids hand-holding the guide plate and guide plate position deviation during surgery.

The application provides an osteotomy guiding device, comprising a measuring rod with a first measuring scale arranged along the axial direction of the measuring rod; a first clamping structure and a second clamping structure, the second clamping structure being adjustably arranged on the measuring rod; wherein the first clamping structure and the second clamping structure each comprise a fixing column arranged along the vertical direction, and an upper clamping jaw, a lower clamping jaw and a first locking member arranged on the fixing column, the upper clamping jaw and the lower clamping jaw being used for clamping a bone, the upper clamping jaw being movably arranged on the fixing column, the first locking member being used for locking the upper clamping jaw and the lower clamping jaw, a first osteotomy groove being arranged on the upper clamping jaw, a second osteotomy groove being arranged on the lower clamping jaw, and a mounting hole being further arranged on the upper clamping jaw, the measuring rod being arranged in the mounting hole of the first clamping structure and the mounting hole of the second clamping structure. The technical scheme of the application can effectively solve the problem of poor clamping stability of the osteotomy guiding tool in the related art, which leads to uneven osteotomy surface.

The positioning and guiding device is used for knee joint osteotomy and comprises an osteotomy guide plate, an adjusting assembly and a tracing frame, and the osteotomy guide plate is provided with an osteotomy guide groove used for guiding the direction of a saw blade; the adjusting assembly comprises a positioning base, a connector and three adjusting units, the positioning base is used for being connected with a target skeleton, the adjusting assembly is detachably connected with the osteotomy guide plate through the connector, and the three adjusting units are connected in series between the positioning base and the connector; the adjusting module is used for adjusting the position and posture of the osteotomy guide plate relative to a target bone so as to adjust the osteotomy amount, the forward-backward inclination angle and the inward-outward turning angle of an osteotomy surface, and the osteotomy surface is a plane to be guided and cut by the osteotomy guide groove; the tracing frame is used for being detachably connected with the osteotomy guide plate and indicating the position of the osteotomy guide plate in the operation space during connection. The defects of a traditional operation scheme and an operation scheme assisted by a mechanical arm in the prior art are overcome, positioning accuracy is guaranteed, and economical efficiency and reliability are both considered.

The present invention relates to a distal femoral osteotomy positioning device, comprising a positioning block, a spacer, and an osteotomy guide. The positioning block has a first positioning surface, the first positioning surface being used to contact the tibial osteotomy surface so that the positioning block is positioned on the tibia; the spacer has a second positioning surface opposite to the first positioning surface, the second positioning surface being used to contact the distal articular surface of the femur, and an angle is formed between the first positioning surface and the second positioning surface; the osteotomy guide has an osteotomy groove. The distal femoral osteotomy positioning device of the present invention can maintain a posterior tilt angle of 3° to 7° during tibial osteotomy so that the tibial plateau conforms to the physiological morphology of the knee joint, while reducing the situation in which the distal femoral osteotomy thickness varies due to inconsistent insertion depth of the positioning block into the knee joint, thereby maintaining the accuracy of osteotomy positioning.

The invention provides a mandibular angle osteotomy surgical robot system which is characterized in that an osteotomy guide plate assembly comprises a first osteotomy guide plate and a second osteotomy guide plate, the second osteotomy guide plate comprises a supporting guide plate and a fixed guide plate, and the supporting guide plate and the fixed guide plate are assembled to form an osteotomy groove body; the special-shaped scalpel comprises a saw blade part and a handle part, the handle part is provided with a bent structure, and an observation space is formed below the handle part. The driving module is used for driving the special-shaped scalpel to execute cutting operation according to a preset track; the monitoring module monitors the cutting operation state of the saw blade part through the observation space; the main control module is used for establishing a human jaw three-dimensional model, generating a personalized osteotomy guide plate assembly based on the human jaw three-dimensional model, obtaining the cutting operation state of the saw blade part through the monitoring module, and controlling the special-shaped scalpel to execute cutting operation through the driving module.

The utility model discloses a universal osteotomy guide plate for fixing ankle joint talus, which comprises a positioning osteotomy seat and a fixing component, a part of talus matching part is arranged on the bottom surface of a connecting block, and the top of the connecting block is connected with the fixing component; the first end of the first curved surface is located on the bottom face of the connecting block, the second end of the first curved surface extends towards the top of the connecting block, the first end of the second curved surface is connected with the second end of the first curved surface, and the second end of the second curved surface extends to the top of the connecting block and is connected with the fixing assembly. The first groove and the second groove are formed in the first curved surface and the second curved surface respectively; the first fixing block is arranged at the top of the connecting block, two first fixing holes are formed in the second end of the first fixing block, the first fixing holes penetrate through the first fixing block, the first kirschner wire penetrates through the two first fixing holes and is inserted into the talus, so that the talus is fixed, recycling of the osteotomy guide plate is achieved, and cost is saved.

The utility model belongs to the field of medical instruments, and provides a tibia osteotomy guide plate which comprises a tibia osteotomy guide part, a tibia first attaching part and a tibia second attaching part, and the tibia osteotomy guide part is provided with a tibia osteotomy groove; the tibia first attaching part is connected with the tibia osteotomy guide part, and the tibia first attaching part is provided with a tibia first attaching face used for being attached to a tibia articular face; the second tibia attaching part is connected with the tibia osteotomy guiding part, the second tibia attaching part is provided with a second tibia attaching face used for being attached to the side face of the near end of the tibia, and the second tibia attaching part is provided with a tibia positioning hole; wherein a tibia side anti-skid structure is formed on the tibia first binding surface and / or the tibia second binding surface. The tibia osteotomy guide plate can be stably and accurately attached to the proximal end of the tibia.

This invention discloses a series of osteotomy guides for condylar osteotomy and their manufacturing method, relating to the field of medical device technology. The manufacturing method includes the following steps: creating a hard plaster dental model; establishing a virtual three-dimensional craniomaxillary model; acquiring virtual dentition data and replacing the dentition data in the three-dimensional model with virtual data; determining the target position of the mandibular bone segment; planning and virtually designing the osteotomy lines for coracoid and condylar resection, and virtually resecting the affected side's coracoid and condylar processes, and virtually designing the affected side's temporomandibular joint reconstruction to obtain a three-dimensional model of the affected side's ascending ramus; drawing the coracoid osteotomy guide; drawing the condylar osteotomy guide based on the mandibular morphology and osteotomy line position; and three-dimensionally printing the guide. By employing the above method, the guide can be fixed using its own shape, eliminating the need for additional fixation measures, reducing the difficulty of the procedure, shortening the operation time, and improving the accuracy of condylar resection; it also reduces the possibility of design errors caused by multi-data matching and fusion during the digital design process.

The utility model discloses a multifunctional guider for olecranal fracture and osteotomy, and belongs to the technical field of surgical auxiliary instruments. Comprising a guide fixing plate and a guide assembly, the guide fixing plate is provided with a positioning hole, a fixing hole and olecranon hooks, the guide fixing plate is an arc-shaped plate capable of being attached to the olecranon end of the ulna, the positioning hole and the fixing hole transversely and longitudinally penetrate through the guide fixing plate respectively, the two olecranon hooks are symmetrically arranged on the guide fixing plate, and the olecranon hooks are arranged on the guide assembly. A guide assembly is arranged on the guide fixing plate between the two olecranon hooks, the guide assembly comprises two sighting device sleeves, and a V-shaped osteotomy guide opening is further formed in the guide fixing plate; the olecranon fracture reduction and fixation device can assist in olecranon fracture reduction and fixation, accurate screw placement and needle insertion, meanwhile, accurate osteotomy can be achieved during olecranon osteotomy, follow-up reduction and fixation are completed, and good clinical prognosis is achieved.

An osteotomy guide to improve accuracy and efficiency of tibial plateau leveling osteotomy (TPLO) procedure. The guide comprises a concave shaped body with two ends on the opposite sides of the body wherein both ends are flushed, or one end is flushed and the other end is extended to form a flare. The flare also comprises a first end which may be extended from the first end of the guide. The guide also comprises a tibial plateau facing inner surface and an outer surface opposite the inner surface. The inner surface has a notch or groove or notches or grooves, which can be used as a landmark for tibial rotation. Further, the area enclosed by the two ends and inner and outer surfaces has plurality of orifices or fixation holes that are used for placing, securing and inserting mechanisms to secure the guide. The guide is durable, reusable or single-use and available in different sizes.

A joint revision surgical system is provided that includes: (a) an osteotome blade / surgical osteotome guide block assembly having: a centrally located cavity and a plurality of anterior osteotome blade guide slots; a shank trunnion fastening member mountable within the central cavity and fastened to the osteotome blade guide block; the L-shaped adjustable blade guide plate is movably positioned in the plurality of osteotome blades / surgical osteotome guide grooves positioned at the front part; and a plurality of posterior osteotome blade / surgical osteotome guide slots, the plurality of posterior osteotome blade / surgical osteotome guide slots for receiving an osteotome blade and a surgical osteotome; (b) a surgical ram assembly; (c) an osteotome blade / surgical osteotome locking handle assembly; and (d) a plurality of osteotome blades / surgical osteotomes including osteotome blades having flexible and rigid blade shafts; wherein the assembled osteotome blade / surgical osteotome guide block is attached to an implanted femoral stem to be removed by attaching the stem trunnion fastening member to a trunnion of the stem.

The present application relates to a kind of femur osteotomes, the femur osteotome includes: clamping assembly and guide plate assembly, the clamping assembly includes connected clamp head and clamping arm component, the clamping arm component has for clamping femur clamping channel, the size of the clamping channel is adjustable, the guide plate assembly includes osteotomy guide plate and first connecting component, the osteotomy guide plate is detachably connected with the clamp head by the first connecting component, osteotomy groove is provided on the osteotomy guide plate, and the groove wall of the osteotomy groove is orthogonal to the axial direction of the clamping channel.The femur osteotome of the present application is higher in accuracy, easy to assemble, and simple to operate.

The utility model discloses a split tibial tubercle osteotomy guide plate, its characterized in that, including: tibial tubercle osteotomy guide plate, four oblique kirschner wires, handle pole, handle pole is installed tibial tubercle osteotomy guide plate, tibial tubercle osteotomy guide plate is equipped with four through -hole, and one oblique kirschner wire is inserted in each through -hole, tibial tubercle osteotomy guide plate still is equipped with a osteotomy groove, the utility model has simplified the surgical operation step, convenient to use, has extensive clinical application value.

The utility model discloses a lateral malleolus reconstruction osteotomy guide plate based on 3D printing, which belongs to the technical field of medical instruments and comprises a guide plate body. Through the arrangement of a fixing assembly, a first horizontal positioning groove, an indicating groove, a first inclined positioning groove, a first kirschner wire hole, a second horizontal positioning groove, a second inclined positioning groove, a second kirschner wire hole and a third kirschner wire hole, the first horizontal positioning groove, the first inclined positioning groove, the second horizontal positioning groove and the second inclined positioning groove cooperate with one another; a positioning surface can be provided for proximal fibula cutting, an osteotomy starting plane can be conveniently positioned by naked eyes in an operation through the indication groove, and then the proximal fibula can be fixed under the action of the fixing assembly, the first kirschner wire hole, the second kirschner wire hole and the third kirschner wire hole so as to ensure the stability of osteotomy. Therefore, a more stable and standard osteotomy environment is provided for fibula near-end wedge-shaped osteotomy, and stability, reliability and accuracy of osteotomy are ensured.

The utility model relates to the technical field of orthopedic surgical instruments, in particular to a pair of minimally invasive osteotomy guide forceps, which comprises a first forceps handle and a second forceps handle, the guiding clamp is reasonable and compact in structure, in the osteotomy process, only periosteum at the position to be subjected to osteotomy needs to be stripped, after the guiding clamp is closed, the left portion of the upper bendable clamp head and the left portion of the lower bendable clamp head can surround the periphery of a bone, the upper guiding groove and the lower guiding groove are synchronously combined, and at the moment, a fretsaw penetrates through the upper guiding groove and the lower guiding groove to conduct osteotomy. The fretsaws can be separated from the corresponding guide grooves to cut off the skeleton by alternately drawing the two ends of the fretsaws; during an operation, the fretsaw is protected by the upper bendable clamp head and the lower bendable clamp head, so that an operative incision cannot be expanded, peripheral nerves, blood vessels and soft tissues of bones can be effectively protected, unnecessary damage to surrounding tissues is avoided, the operation time is greatly shortened, the possibility of postoperative complications is reduced, and the postoperative rehabilitation time of a patient is shortened.

The present application relates to a kind of whole guide plate for bone graft sandwich bone grafting simultaneous implantation and manufacturing method, including the implantation guide plate of bone graft and implant, bone graft positioning finishing plate, tooth positioning device of bone area, osteotomy guide plate, tooth bone model of edentulous area, tooth bone model of bone area, the top of the implantation guide plate of bone graft and implant is connected with the bottom of bone graft positioning finishing plate, can be set with the several positioning points corresponding to bone area position in bone area by the guide drill needle hole on bone graft positioning finishing plate, can accurately transplant the bone graft taken to bone area;The osteotomy guide plate can be connected with tooth positioning device of bone area, also can be fixed in bone area according to the several positioning points;The present application can realize accurate, minimally invasive, safe to obtain intraoral autologous bone graft, can provide bone graft acquisition, finishing, implantation and implantation whole process guidance for surgeon, reduce the difficulty of operation, assist surgeon to complete the whole operation more accurately, efficiently, safely.

The invention relates to a spine osteotomy guide plate which comprises a first body, a second body, a plurality of first osteotomy guide needles and a plurality of second osteotomy guide needles, the first body is provided with a first osteotomy guide face, the second body is provided with a second osteotomy guide face, and the first osteotomy guide face and the second osteotomy guide face are used for osteotomy guide of a spine posterior column; the plurality of first osteotomy guide needles are detachably connected to the first body, extend along the first osteotomy guide surface and are used for increasing the guide distance of the first osteotomy guide surface; the plurality of second osteotomy guide needles are detachably connected to the second body, extend along the second osteotomy guide surface and are used for increasing the guide distance of the second osteotomy guide surface; wherein the first osteotomy guide needle and the second osteotomy guide needle both extend to the cortical bone position of the anterior column of the spine and are used for osteotomy guide of the anterior column of the spine.

This invention discloses an osteotomy guide plate, which includes a guide plate body, a first osteotomy blade groove, and a second osteotomy blade groove. A first side portion of the osteotomy guide plate forms the first and second osteotomy blade grooves with the guide plate body. The first osteotomy blade groove allows the osteotomy blade to move within a first plane after insertion, and the second osteotomy blade groove allows the osteotomy blade to move within a second plane after insertion. A first intersection line between the first plane and a reference plane forms a first preset angle with a second intersection line between the second plane and the reference plane. By including the first and second osteotomy blade grooves in the osteotomy guide plate, and with the first intersection line between the first plane and the reference plane and the second intersection line between the second plane and the reference plane forming a first preset angle, this application can limit the movement path of the osteotomy blade through the first and second osteotomy blade grooves. Furthermore, the two movement paths forming a first preset angle ensure that the movement path of the osteotomy blade matches the planned path, thereby improving the accuracy of osteotomy surgery.

The invention discloses a knee joint osteotomy guide plate and a use method thereof, and relates to the field of knee joint replacement tools, the knee joint osteotomy guide plate comprises a thighbone osteotomy guide plate, the thighbone osteotomy guide plate comprises a thighbone guide plate main body and a thighbone insertion block, the thighbone guide plate main body and the thighbone insertion block are in insertion fit, and the thighbone guide plate main body is provided with a first binding surface, a first spicule fixing hole and a thighbone osteotomy groove; a second binding surface is arranged on the thighbone insertion block, and the first binding surface and the second binding surface are used for being attached to the thighbone surface or the thighbone osteophyte; the tibia osteotomy guide plate comprises a tibia guide plate main body and a tibia insertion block, the tibia guide plate main body and the tibia insertion block are matched in an inserted mode, the tibia guide plate main body is provided with a third attaching face, a second bone needle fixing hole and a tibia osteotomy groove, the tibia insertion block is provided with a fourth attaching face, and the third attaching face and the fourth attaching face are used for being attached to the tibia face or the tibia osteophyte; according to the osteotomy guide plate, an osteotomy plane is accurately positioned by utilizing a plurality of parts or osteophyte with obvious knee joint bone tissue characteristics, so that the osteotomy accuracy is improved, and the surgical risk can be reduced.

The utility model relates to orthopedics orthopedic equipment technical field, especially 3D printing osteotomy orthopedic surgery guide plate. Including osteotomy guide plate, the both sides of osteotomy department are equipped with the positioning part and show T character, the one side of positioning part is arc and is attached to the board, and the other side of positioning part is equipped with first locating hole groove and second locating hole groove, and is equipped with locating hole in first locating hole groove and second locating hole groove, and locating hole penetrates positioning part, and first locating hole groove and second locating hole groove are equipped with drill guide rail, and the through hole groove is set up in the drill guide rail, and the through hole groove is equipped with kirschner wire, and the osteotomy groove is set up on the osteotomy department, and the osteotomy groove penetrates osteotomy department. The above structure only needs the arc and is attached to the board of positioning part and is attached to the orthopedic bone, and is fixed through first locating hole groove and second locating hole groove. And through the osteotomy groove guide imports osteotomy device, and the limiting and depth limiting effect of osteotomy groove effectively control osteotomy direction and osteotomy depth, effectively reduce the operation difficulty of doctor.

The utility model relates to a total knee arthroplasty thighbone stable osteotomy guide plate and an osteotomy assembly, the total knee arthroplasty thighbone stable osteotomy guide plate comprises a guide plate main body, the guide plate main body is provided with a matching part, and the matching part comprises a fitting part capable of being matched with different parts of a thighbone; a posterior condyle osteotomy inspection groove and a guide plate positioning hole are formed in the top of the guide plate main body, and a far-end osteotomy groove is formed in the middle of the guide plate main body. The utility model can be adapted to the prosthesis of a personalized patient, avoids excessive tissue stripping, is convenient for doctors to use in an operation, and reduces the trauma of the patient.

The present invention relates to a method for interactively designing via an implant design platform an artificial joint implant for hip arthroplasty and corresponding broaching and osteotomy guide apparatuses. The proposed implant design platform reconstructs the anatomy of the patient's pelvic and femoral bones in a 3D digital environment, and accordingly develops a patient-specific femoral implant stem as well as patient-specific surgical tools broach / rasp, osteotomy guide) used in total 10 hip arthroplasty. The patient-specific femoral implant stem developed may be optimized to ensure optimum mechanical performance for the patient, employing complex internal lattices that minimize stress shielding and advanced trabecular surfaces to promote osseointegration.

The application provides a self-conchal process condyle and mandible reconstruction bone support type guide plate and titanium plate assembly, which comprises a condyle reconstruction osteotomy guide plate, a condyle reconstruction fixed titanium plate, a mandibular median joint osteotomy guide plate and a mandibular median joint fixed titanium plate. The combination of the above-mentioned bone support type guide plate and titanium plate assembly improves the accuracy of the self-conchal process condyle and mandible reconstruction through CAD / CAM combined with screw rail transfer technology, helps to shorten the operation time, and is beneficial to the recovery of the occlusal function after the mandibular body reconstruction.

The invention discloses a modularized precise metal guide plate, and relates to the technical field of osteotomy guide plates, the modularized precise metal guide plate comprises a fixed guide module and a corresponding test module, the fixed guide module is fixed on a bone through a fixed seat, the corresponding test module is connected with the fixed guide module through an extension rod, and after a vertical kirschner wire is driven through a semicircular hole, the test module is connected with the fixed guide module; adjusting a connecting plate according to a size mark, then moving a simulation block, moving an arc frame along with the simulation block, freely releasing a sliding rod in the moving process, after the lower end of the sliding rod corresponds to an indication frame, pressing a pressing rod, taking down a corresponding test module, locking the arc frame through a sliding hole block, and driving a kirschner wire with a corresponding angle into an angle hole; and then the fixed guide module is taken down, and the swing saw cutting work is completed according to the guidance of the kirschner wire.

A surgical guide includes a body defining a first access port and a second access port. The first access port extends on a first longitudinal access parallel with a first edge of the body and the second access port extends on a second longitudinal access positioned non-parallel with respect to each edge of the body. At least one coupling arm extends from the body. The at least one coupling arm defines at least one fixation aperture sized and configured to receive a fixation element through.

The utility model discloses a two-in-one knee joint additive manufacturing osteotomy guide plate which comprises a base body, a first fixing part and a second fixing part, the first fixing part and the second fixing part extend outwards from the two opposite sides of the base body, and each of the first fixing part and the second fixing part comprises an attaching part extending in the direction perpendicular to the base body. A first attaching surface and a second attaching surface are respectively formed on the corresponding attaching parts, the first attaching surface is adaptive to the shape of the human femur, and the second attaching surface is adaptive to the shape of the human tibia, so that the guide plate is simultaneously fixed on the human femur and the human tibia; and the osteotomy groove selectively faces the human femur and / or the human tibia. Compared with the prior art, the thighbone and the tibia of the human body can be cut out simultaneously, and the thighbone and tibia cutter is more practical.