Tibia trial mold operation tool system with multiple verifications

Abstract

The invention discloses a tibia trial mold operation tool system with multiple verifications, which comprises tibial plateau substrates, a gasket test mold is arranged at the upper end of the tibial plateau base plate; the gasket test mold is provided with a thickening cushion block; the tibial plateau base plate is clamped and matched with the gasket test mold; a gasket test mold cushion block isclamped and matched with the tibia gasket test mold; the invention discloses the tibia trial mold operation tool system with multiple verifications, the tibial plateau base plate is matched with thetibial gasket test mold and the gasket test mold cushion block, so that the mounting position and size of the knee joint prosthesis can be verified for three times after the tibial plateau osteotomy,the tibial plateau wing-shaped groove osteotomy and the tibial support prosthesis are mounted, the stability and mobility of the knee joint and whether the tension of the lateral ligament is proper ornot, balance, tightness and the like are determined, the operation accuracy is ensured, the operation success rate is increased, the postoperative risk is reduced, the number of surgical instrumentsis reduced, and the cost is reduced.

Description

technical field [0001] The invention relates to the technical field of knee joint replacement instruments, in particular to a tibia trial mold surgical tool system with multiple verifications. Background technique [0002] Domestic artificial knee replacement started relatively late. In the 1980s, it began to imitate the TCP (total condylar) type prosthesis, and there were a small number of clinical reports. On this basis, according to the normal anatomical data of the Chinese knee joint, a bone cement was designed and developed. Fixed anatomical knee prosthesis. In total knee arthroplasty, doctors need to use the tibial trial model and the condyle trial model to measure whether the flexion-extension gap after knee osteotomy is appropriate, to evaluate whether the amount of osteotomy and the direction of osteotomy are accurate, and to determine the specifications of the tibial prosthesis Size, assess whether the line of force of the lower limbs is accurate, whether the soft...

AI Technical Summary

Problems solved by technology

[0004]1. At present, most of the existing tibial trial molds are adapted to a single specification. More, the operation takes a lot of time, resulting in longer operation time and increased operation risk;

[0005]2. At present, most of the knee joint surgical instrument tibial trial system can only meet the doctor's verification after the first osteotomy, due to bone nail interference, osteotomy dislocation, false Bone implantation and other problems cannot be verified twice or three times, resulting in problems such as osteotomy dislocation during the operation that cannot be detected in time, which will increase the risk of surgical failure

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