*Primary Total Arthroplasty in Stiff Knees DOI: http://dx.doi.org/10.5772/intechopen.106225*

The functional scores applied after TKA like Hospital for Special Surgery (HSS), Knee Society Score (KSS), Knee Society Functional Score (FS) have improved due to gain in postoperative ROM in comparison with preoperative status [11, 30–33]. The range of improvement in ROM after TKA in SKNs is around 50°–70°. The range of improvement in KSS after TKA is between 30 and 45 points [30–33]. In spite of the enhancement in motion, some residual flexion contracture is predictable in type 2 and 3 SKNs and can affect the pattern of the gait. A limp with overload in the lumbar spine can be expected in this scenario.

The TKA in SKNs is technically demanding with a time-consuming rehabilitation protocol. Patient expectation should be realistic according to the level of SKNs. The complication rate is greater than conventional TKA. A good preoperative evaluation is mandatory to avoid unexpected intra- and postoperative hassle.
