Surgical knee alignment method and system
US4524766A · kind A · utility
Inventor
Key dates
| Filing date | Jan 7, 1982 |
| Grant date | Jun 25, 1985 |
| Priority date | — |
| Expiry date | Jan 7, 2002 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/157
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A system of precision instruments for utilization in knee surgery, particularly for component replacement includes a series of alignment and cutting guides which function to align various necessary cuts of bone structure with respect to the ankle. The system in its preferred arrangement includes a cutting guide head mounted on an elongated, extensible support frame member having a laterally adjustable ankle guide for adjustably aligning the cutting heads for a proper angle of cut with respect to the weight bearing axis through the ankle and the hip joint. A tibial resection guide head with a cutting guide slot is fixed to the upper end of the elongated extensible support frame member and including a traction grip extending outward from the extendable support frame member for application of traction or tension to the collateral ligaments. An anterior femoral condyle resector/posterior spacer guide is applied to the anterior femoral cortex superior to the anterior condyles, and is used to accurately remove the anterior femoral condyles and predetermine the size of the optimal tibial prosthesis. A distal femoral condyle resector guide is detachably mountable on the frame and includes …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.