No difference between standard and high flexion cruciate retaining total knee arthroplasty: a prospective randomised controlled study

作者：Springorum Hans Robert; Maderbacher Guenther; Craiovan Benjamin; Luering Christian; Baier Clemens; Grifka Joachim; Keshmiri Armin^*

来源：Knee Surgery, Sports Traumatology, Arthroscopy, 2015, 23(6): 1591-1597.

DOI：10.1007/s00167-014-3082-6

• High-flexion total knee arthroplasty
• Range of motion
• Total knee arthroplasty
• Randomised controlled trial

The purpose of this prospective, randomised, double-blind study was to test the hypotheses that patients with high-flexion total knee arthroplasty (TKA) have (1) a wider/greater range of motion (ROM) post-operatively and (2) higher levels of knee society score (KSS) and WOMAC score post-operatively compared to standard TKA.
In this study, 28 high flexion with 31 standard TKAs were compared. We measured ROM, pre-operatively, on day 3, 7, 28, and after 6 and 36 months post-operatively as well as KSS and WOMAC score pre-operatively, on day 28 and after 6 and 36 months post-operatively.
No statistically significant differences were found between both groups with regard to the target parameters. The mean ROM was 113A degrees (range 80A degrees-140A degrees, SD 13.4A degrees) in the control group (standard TKA) and 117A degrees (range 90A degrees-140A degrees, SD 12.3) in the study group (high-flexion TKA) at 36 months follow-up [p = not significant (n.s.)]. The KSS pre-operatively was 38.2 (range 8-64, SD 15.8) in the control group and 45.9 (range 8-74, SD 16.0) in the study group (n.s.) increasing to 157.6 in the control group and 156.7 in the study group (p = n.s) at 36 months follow-up.
This study could not confirm significant benefits of high-flexion TKA compared to standard TKA with regard to ROM and higher levels of KSS and WOMAC score.
I.

• 出版日期2015-6