《Chinese Journal of Rehabilitation Theory and Practice》 ›› 2024, Vol. 30 ›› Issue (1): 111-118.doi: 10.3969/j.issn.1006-9771.2024.01.015

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Short-term knee function after total knee arthroplasty and related factors

WANG Zihao1, LI Xinhua2a, JIANG Huiping2b, GUO Sainan2b, LIANG Qiuman3, SHI Tingqi2b()   

  1. 1. Nanjing Drum Tower Hospital Clinical College of Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210008, China
    2. a. Division of Sports Medicine and Adult Reconstructive Surgery; b. Department of Nursing, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, Jiangsu 210008, China
    3. School of Nursing, Nanjing University of Chinese Medicine, Nanjing, Jiangsu 210023, China
  • Received:2023-10-11 Revised:2023-12-20 Published:2024-01-25 Online:2024-02-04
  • Contact: SHI Tingqi, E-mail: 13912996998@163.com
  • Supported by:
    Nanjing University China Hospital Reform and Development Research Institute Project(NDYG2022067);Nanjing Health Science and Technology Development Special Fund Project(YKK22074)

Abstract:

Objective To investigate the short-term knee function recovery of patients undergoing total knee arthroplasty (TKA) after discharge and analyze its related factors.

Methods From December, 2022 to April, 2023, 140 adult patients who underwent TKA in Nanjing Drum Tower Hospital and being about to be discharged were selected as the survey subjects using convenient sampling. Potential influencing factors were selected based on a literature review. They were investigated with general information questionnaire, Rehabilitation Exercise Compliance Scale, Self-Efficacy Scale for Rehabilitation Exercise (SER), Visual Analog Scale for pain (VAS), and joint range of motion measurements before discharge, and were investigated with the Hospital for Special Surgery Knee Score (HSS) one month after discharge.

Results A total of 130 patients finished follow-up. One month after discharge, the HSS score ranged from 40 to 82, with an average of (70.89±6.26). Multiple linear regression analysis revealed that Body Mass Index (B = -0.423, 95%CI -0.622 to -0.224, P< 0.001), pre-discharge VAS (B = -1.016, 95%CI -1.198 to -0.113, P= 0.028), rehabilitation exercise compliance (B = 0.267, 95%CI 0.121 to 0.413, P< 0.001), SER (B = 0.478, 95%CI 0.315 to 0.642, P< 0.001), and knee joint flexion contracture angle (B = -0.251, 95%CI -0.414 to -0.088, P= 0.003) could influence HSS score one month after discharge (R2 = 0.615, F=17.106, P< 0.001).

Conclusion Patients after TKA have recovered well in short time after discharge, however, there is still significant room for improvement. Clinical healthcare providers should design and implement appropriate interventions based on related factors to improve the function.

Key words: total knee arthroplastyt, joint function, short-term rehabilitation, rehabilitation status, related factors

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