AIM: The study aimed to assess tendon length change following patello-femoral replacement (PFR) surgery and total knee replacement (TKR). METHOD: A retrospective analysis was conducted of 40 patients undergoing PFR surgery and 40 patients undergoing TKR and an unoperated control group. Immediate preoperative radiographs were compared with those at 1 year postoperatively. Intra/inter-observer error was assessed in four observers. RESULT: In the unoperated patients the mean shortening was 0.6% (range 6% shortening to 3% lengthening). The mean shortening after PFR surgery was 0.1% of shortening (range 14% shortening to 11% lengthening). The mean shortening after TKR was 7.14% (range 25% shortening to 7% lengthening). CONCLUSION: Shortening of the patella tendon after PFR surgery occurs infrequently and less severely compared with TKR. LEVEL OF EVIDENCE: Level 2 prognostic study.
AIM: The study aimed to assess tendon length change following patello-femoral replacement (PFR) surgery and total knee replacement (TKR). METHOD: A retrospective analysis was conducted of 40 patients undergoing PFR surgery and 40 patients undergoing TKR and an unoperated control group. Immediate preoperative radiographs were compared with those at 1 year postoperatively. Intra/inter-observer error was assessed in four observers. RESULT: In the unoperated patients the mean shortening was 0.6% (range 6% shortening to 3% lengthening). The mean shortening after PFR surgery was 0.1% of shortening (range 14% shortening to 11% lengthening). The mean shortening after TKR was 7.14% (range 25% shortening to 7% lengthening). CONCLUSION: Shortening of the patella tendon after PFR surgery occurs infrequently and less severely compared with TKR. LEVEL OF EVIDENCE: Level 2 prognostic study.
Authors: Ludo A H van Engen; Ellie B M Landman; Ydo V Kleinlugtenbelt; Hans-Peter W van Jonbergen Journal: Int Orthop Date: 2018-10-12 Impact factor: 3.075
Authors: B H van Duren; H Pandit; T W Hamilton; E Fievez; A P Monk; C A F Dodd; D W Murray Journal: Knee Surg Sports Traumatol Arthrosc Date: 2014-06-12 Impact factor: 4.342