PURPOSE: The purpose of this study was to analyse the results of total knee arthroplasty (TKA) in stiff knees (flexion ≤90° and/or flexion contracture ≥20°). Our hypothesis was that despite having poorer results than those obtained in a "standard" population and a high rate of complications, TKA was a satisfactory treatment in patients with osteoarthritis of the knee associated with significant stiffness. METHODS: Three hundred and four consecutive primary HLS TKAs (Tornier), whose data were prospectively collected between October 1987 and October 2012, were retrospectively analysed at a mean of 60 months (range, 12-239) postoperatively. Two groups, those with a "flexion contracture" and those with a "flexion deficit", were assessed for postoperative range of motion (as integrated to the Knee Society score [KSS]), physical activity level and patient satisfaction. RESULTS: At the latest follow-up, range of motion was significantly improved, as was the KSS. Ninety-four percent of patients were satisfied or very satisfied, and activity levels were increased after surgery. The complication rate, however, was high in patients with a preoperative flexion deficit (17%). Pain and residual stiffness were the most common complications. CONCLUSION: TKA provides satisfactory results in patients with knee osteoarthritis associated with significant pre-operative stiffness. The surgical plan should be adapted to anticipate complications, which are particularly frequent in the presence of a flexion deficit.
PURPOSE: The purpose of this study was to analyse the results of total knee arthroplasty (TKA) in stiff knees (flexion ≤90° and/or flexion contracture ≥20°). Our hypothesis was that despite having poorer results than those obtained in a "standard" population and a high rate of complications, TKA was a satisfactory treatment in patients with osteoarthritis of the knee associated with significant stiffness. METHODS: Three hundred and four consecutive primary HLS TKAs (Tornier), whose data were prospectively collected between October 1987 and October 2012, were retrospectively analysed at a mean of 60 months (range, 12-239) postoperatively. Two groups, those with a "flexion contracture" and those with a "flexion deficit", were assessed for postoperative range of motion (as integrated to the Knee Society score [KSS]), physical activity level and patient satisfaction. RESULTS: At the latest follow-up, range of motion was significantly improved, as was the KSS. Ninety-four percent of patients were satisfied or very satisfied, and activity levels were increased after surgery. The complication rate, however, was high in patients with a preoperative flexion deficit (17%). Pain and residual stiffness were the most common complications. CONCLUSION: TKA provides satisfactory results in patients with knee osteoarthritis associated with significant pre-operative stiffness. The surgical plan should be adapted to anticipate complications, which are particularly frequent in the presence of a flexion deficit.
Authors: Ho-Rim Choi; John Siliski; Henrik Malchau; Andrew Freiberg; Harry Rubash; Young-Min Kwon Journal: Int Orthop Date: 2014-07-04 Impact factor: 3.075
Authors: David H Dejour; Jacobus H Müller; Mo Saffarini; Michel Timoteo; Pierre Chambat; Gerard Deschamps; Michel P Bonnin Journal: Knee Surg Sports Traumatol Arthrosc Date: 2021-03-04 Impact factor: 4.342
Authors: Seung Ah Lee; Seung-Baik Kang; Chong Bum Chang; Moon Jong Chang; Young Jun Kim; Min Kyu Song; Jin Hwa Jeong Journal: PLoS One Date: 2018-10-11 Impact factor: 3.240