25 November 2023>: Clinical Research
Risk Factors for Postoperative Knee Stiffness in Patients with Anteromedial Knee Osteoarthritis Undergoing Unicompartmental Knee Arthroplasty with Cemented Prostheses: A Short-Term, Retrospective, Case-Control Study
Congcong Wei 1ABCDEF , Xihan Zhang 1B , Mingming Dong 2B , Boyi Lei 1B , Jiangbo Zhao 1B , Xiangdong Xi 1B , Shuai Zhao 1B , Baigang Zhou 1AG*DOI: 10.12659/MSM.942440
Med Sci Monit 2023; 29:e942440
Table 2 Preoperative clinical results in patients with center knee osteoarthritis undergoing unicompartmental knee arthroplasty.
Feature of the patients | Patients without post-operative knee stiffness (n=530) | Patients with post-operative knee stiffness (n=60) | Total (n=590) | P |
---|---|---|---|---|
OA degree | ||||
175 (33.02%) | 15 (25%) | 190 (32.2%) | 0.370 | |
≥Ahlback grade 2 | 355 (66.98%) | 45 (75%) | 400 (67.8%) | |
Preoperative activity level | ||||
220 (41.51%) | 15 (25%) | 235 (39.83%) | 0.122 | |
≥Tegner scale 4 | 310 (58.49%) | 45 (75%) | 355 (60.17%) | |
Varus deformity | ||||
≥5° | 400 (75.47%) | 15 (25%) | 415 (70.34%) | |
130 (24.53%) | 45 (75%) | 175 (29.66%) | ||
Preoperative HKA angle (degrees) | 169.9±4.3 | 169.6±4.1 | 169.7±4.2 | 0.112 |
Preoperative KSKS | 45.4±10.0 | 43.4±10.0 | 44.4±10.0 | 0.052 |
Preoperative KSFS | 55.4±13.2 | 50.4±19.7 | 52.9±16.5 | 0.081 |
Preoperative maximum flexion (degrees) | 132.0±6.4 | 126.8±7.2 | 128.9±6.8 | |
Preoperative maximum extension (degrees) | 4.9±4.4 | 4.7±3.5 | 4.8±3.9 | 0.106 |
VAS score | 3.92±2.45 | 4.08±2.50 | 4±2.47 | 0.759 |