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Chinese Journal of Joint Surgery(Electronic Edition) ›› 2024, Vol. 18 ›› Issue (03): 346-351. doi: 10.3877/cma.j.issn.1674-134X.2024.03.007

• CLINICAL RESEARCH • Previous Articles    

Total knee arthroplasty using intelligent assisted surgical navigation system for treatment of knee osteoarthritis

Jiangli Zhang1,(), Jinhui Liu1, Xiqing Pan1, Guangyuan Liu1, Xiao Fan1   

  1. 1. The First Department of Customs, the Third Hospital of Shijiazhuang, Shijiazhuang 050000, China
  • Received:2023-12-08 Online:2024-06-01 Published:2024-07-11
  • Contact: Jiangli Zhang

Abstract:

Objective

To investigate the improvement of knee function, knee range of motion and gait parameters in patients with knee osteoarthritis after intelligent assisted surgical navigation system(iASSIST)-total knee arthroplasty (TKA).

Methods

Ninety patients with knee osteoarthritis in the Third Hospital of Shijiazhuang City from May 2020 to May 2022 who did not respond to conservative treatment and met the indications for TKA surgery, were selected. Those who were with abnormal renal-hepatic functions, joint replacement history and couldnot tolerate surgery were excluded. The patients were randomly divided into an observation group and a control group, with 45 cases in each group. The observation group underwent treatment using the iASSIST navigation system, while the control group received conventional surgical treatment. Independent sample t test were performed to analyze differences between the two groups in perioperative indicators, recovery of knee function, joint mobility, and gait.

Results

The operation time and intraoperative drainage volume of the observation group were significantly higher than those of the control group, and the length of hospital stay was shorter than that of the control group (t=34.957, 21.372, both P<0.05). After treatment, the Western Ontario and McMaster Universities (WOMAC) osteoarthritis scores of patients in the two groups significantly decreased, and WOMAC scores of patients in one, two, three, and four weeks after treatment were significantly lower than those of the control group (F=19.934, P<0.05). The maximum hip extension angle, the maximum knee extension angle at stance phase and the maximum knee flexion angle of patients in the two groups were significantly improved, and the data in observation group were significantly higher than those in control group (t=26.199, 5.421, 21.449, all P<0.05). The asymmetry of step length and one-leg stance time in two groups significantly decreased, and the data in the observation group were significantly lower than those in the control group (t=27.000, 10.138, both P<0.05).

Conclusion

After iASSIST-TKA for patients with knee osteoarthritis, knee function, knee range of motion and gait of patients have been significantly improved, which is recommended for clinical promotion.

Key words: Osteoarthritis, Knee, Surgical navigation systems, Arthroplasty, replacement, knee

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