Navigation template for distal femur osteotomy and design method thereof

Abstract

The invention discloses a navigation template for distal femur osteotomy and a design method thereof. The navigation aims at biplanar closed osteotomy in distal femur osteotomy. The distal femur osteotomy navigation template for distal femur osteotomy comprises an osteotomy orientation navigation template module, an osteotomy navigation template near-end optical positioning and tracking module, an osteotomy navigation template far-end optical positioning and tracking module and an osteotomy depth limiting module, so that the navigation and positioning precision in the operation can be improved, and the perspective radiation injury can be reduced. Meanwhile, in combination with the design method of the navigation template for distal femur osteotomy, a digital model and information of the osteotomy process are established before the operation, so that the dependence of doctors on operation experience is reduced, the risk of insufficient positioning during the operation is reduced, and the service level of carrying out distal femur osteotomy by inexperienced doctors and primary medical institutions can be promoted.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to a navigation template and a design method thereof for orthopedic surgery of distal femur osteotomy deformity. Background technique [0002] Femoral deformity is not uncommon in clinical practice, and the main causes are deformity, fracture and complications of lower limbs in patients with cerebral palsy. Taking children with cerebral palsy as an example, 70% to 90% of children with cerebral palsy have different degrees of lower limb deformities. [0003] The femur is the main bone of the lower extremity and participates in the main movement of the lower extremity. Deformity of the femur will lead to changes in the load-bearing line of the lower extremity, varus or valgus of the knee joint, and even deformity of the ankle joint (such as equinus). Femoral deformity often manifests as adverse symptoms such as femoral shaft curvature and angular deformity. For those with ...

AI Technical Summary

Problems solved by technology

In the actual operation process, due to the individual differences in the distal femur and the lack of obvious marking points for positioning, the positioning operation in traditional surgery is done by the surgeon with his hands under the intraoperative imaging fluoroscopy equipment, and the positioning accuracy To a large extent, it depends on the quality of intraoperative imaging, the experience and skills of doctors, and X-ray intraoperative fluoroscopy also brings serious radiation damage to doctors and patients

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