Table 2 Definition of elements for measurement on postoperative plain films (Fig. 2C)
Elements | Description | Function |
|---|---|---|
Femoral cutting line | Backside of distal portion of femoral component | Femoral cutting line |
Tibial cutting line | Backside of tibial component | Tibial cutting line |
Joint space rectangle | Rectangle with femoral and tibial cutting lines as longer borders | Simulating parallel joint space achieved after bone cutting and soft tissue balancing |
Joint gap | Shorter borders of joint space rectangle | Joint gap achieved |
Posterior condylar rectangle | Rectangle with backside and tangent line to the posterior arc of posterior condyle of femoral implant as longer borders | |
Thickness of posterior condyle (on lateral view) | Shorter borders of the posterior condylar rectangle | Thickness of posterior condyle |