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2023, Vol. 27 ›› Issue (18): 2848-2853

Comparison of cementless and cemented femoral prosthesis for unicompartmental knee arthroplasty in the treatment of osteoarthritis

Shi Sifeng, Lin Qiang, Zhou Bing, Chen Xiangyang, Lu Wenhai   

  1. Affiliated Hospital of Xuzhou Medical University, Xuzhou 221400, Jiangsu Province, China

  • Received:2022-05-05 Accepted:2022-07-09 Online:2023-06-28 Published:2022-09-17


  • About author:Shi Sifeng, MD, Associate chief physician, Affiliated Hospital of Xuzhou Medical University, Xuzhou 221400, Jiangsu Province, China

  • Supported by:

    Natural Science Foundation of Jiangsu Province, No. BK20140220 (to SSF)


Abstract: BACKGROUND: The application of cementless unicompartmental knee arthroplasty is becoming increasingly popular, but its clinical result is still controversial.  
OBJECTIVE: To compare the clinical result of the cementless and the cemented femoral prosthesis in unicompartmental knee arthroplasty in the treatment of anteromedial knee osteoarthritis.
METHODS: From January 2020 to January 2021, 62 patients with medial compartmental osteoarthritis of the knee were enrolled in the Department of Orthopedics, Affiliated Hospital of Xuzhou Medical University, and randomly allocated to 2 groups, including 31 cases in the cemented group and 31 cases in the cementless group. Patients were all treated with unicompartmental knee arthroplasty. The postoperative visual analogue scale score, range of motion of the knee, Hospital for Special Surgery score and patient satisfaction were recorded for statistical evaluation.  
RESULTS AND CONCLUSION: (1) There was no significant difference in knee range of motion at 1, 3, and 6 months after surgery, excellent and good rate of Hospital for Special Surgery score and patient satisfaction at 6 months after surgery between the two groups (P > 0.05). (2) The visual analogue scale score of the cemented group was better than that of the cementless group at 1 and 3 months at rest (P < 0.05); the visual analogue scale score on activity was better in the cemented group than that of the cementless group at 3 months (P < 0.05). (3) There was no postoperative infection or deep vein thrombosis. There were two patients with delayed wound healing, and wound healed after dressing change. (4) It is suggested that cementless femoral prosthesis for unicompartmental knee arthroplasty was safe and effective in the treatment of medial osteoarthritis. Compared with cemented femoral prostheses, although pain relief was less in the early postoperative period, two prostheses have the same effect on postoperative knee range of motion and clinical function of the knee. For elderly patients with osteoporosis, the authors recommend the cemented unicompartmental knee arthroplasty.
Key words: unicompartmental knee arthroplasty, knee, unicompartmental, arthritis, cementless prosthesis, cemented prosthesis


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