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2022, Vol. 26 ›› Issue (6): 892-897

Total knee arthroplasty with posterior cruciate ligament retaining prosthesis in the treatment of knee osteoarthritis with knee valgus deformity

Zhou Jianguo1, Liu Shiwei1, Yuan Changhong2, Bi Shengrong1, Yang Guoping1, Hu Weiquan1, Liu Hui1, Qian Rui1   

  1. 1Department of Joint Surgery, Affiliated Ganzhou Hospital of Nanchang University, Ganzhou 341000, Jiangxi Province, China; 2Center for Disease Control and Prevention of Xinfeng County, Ganzhou 341600, Jiangxi Province, China

  • Received:2021-03-27 Revised:2021-04-01 Accepted:2021-05-26 Online:2022-02-28 Published:2021-12-07

  • Contact: Qian Rui, Chief physician, Department of Joint Surgery, Affiliated Ganzhou Hospital of Nanchang University, Ganzhou 341000, Jiangxi Province, China

  • About author:Zhou Jianguo, Associate chief physician, Doctoral candidate, Department of Joint Surgery, Affiliated Ganzhou Hospital of Nanchang University, Ganzhou 341000, Jiangxi Province, China Liu Shiwei, Physician, Department of Joint Surgery, Affiliated Ganzhou Hospital of Nanchang University, Ganzhou 341000, Jiangxi Province, China Zhou Jianguo and Liu Shiwei contributed equally to this article.

  • Supported by:

    the Science and Technology Plan Project of Jiangxi Provincial Health Commission, No. 20177236 (to ZJG), No. 20195067 (to ZJG); the Science and Technology Plan Project of Ganzhou, No. GZ2020ZSF165 (to ZJG); the Science and Technology Plan Project of Ganzhou Municipal Health Commission, No. 2020-1-3 (to ZJG)



Abstract: BACKGROUND: Studies have shown that the use of posterior cruciate ligament retaining prosthesis in total knee arthroplasty can retain more proprioception, reduce the stress of patellofemoral joint, enhance the function of quadriceps femoris through the rolling of femoral rear wheel, increase the range of motion of knee joint, make the gait of patients more normal, and improve the satisfaction of patients.  
OBJECTIVE: To explore the clinical efficacy of total knee arthroplasty with posterior cruciate ligament retaining prosthesis in the treatment of knee osteoarthritis with knee valgus deformity.
METHODS: From November 2018 to December 2020, data of 30 patients (all single knee arthroplasty) with knee osteoarthritis and genu valgus deformity who underwent primary total knee arthroplasty with posterior cruciate ligament retaining prosthesis in the Department of Joint Surgery of the Affiliated Ganzhou Hospital of Nanchang University were retrospectively analyzed. The knee valgus angle and range of motion of 30 patients were measured before operation and 2 weeks and 3 months after operation, and the knee function was evaluated by HSS. The study has been approved by the Ethics Committee of the Affiliated Ganzhou Hospital of Nanchang University (approval No. TY-ZKY2021-009-01).  

RESULTS AND CONCLUSION: (1) The knee valgus angle of 30 patients at 2 weeks and 3 months after operation was less than that before operation (P < 0.05), and there was no significant difference in knee valgus angle between 3 weeks and 3 months after operation (P > 0.05). (2) The range of motion of knee joint in 30 patients at 2 weeks and 3 months after operation was higher than that before operation (P < 0.05). There was no significant difference in range of motion of knee joint between 3 weeks and 3 months after operation (P > 0.05). (3) The overall HSS scores of 30 patients at 2 weeks and 3 months after operation were higher than those before operation (P < 0.05), and there was no significant difference in overall HSS scores between 3 weeks and 3 months after operation (P > 0.05). (4) The results showed that total knee arthroplasty with posterior cruciate ligament retaining prosthesis can effectively correct the deformity of knee joint, reduce the pain of knee joint, improve the muscle strength of affected limb, and significantly improve the range of motion and function of knee joint, showing significant clinical effect.

Key words:posterior cruciate ligament, artificial knee prosthesis, total knee arthroplasty, osteoarthritis, knee valgus, knee joint pain, range of motion of knee joint, clinical effect


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