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

doi:10.3877/cma.j.issn.1674-134X.2024.03.007

Abstract

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

Jiangli Zhang, Jinhui Liu, Xiqing Pan, Guangyuan Liu, Xiao Fan. Total knee arthroplasty using intelligent assisted surgical navigation system for treatment of knee osteoarthritis[J]. Chinese Journal of Joint Surgery(Electronic Edition), 2024, 18(03): 346-351.

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Figures/Tables 5

References 20

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组别 Groups	例数 Number of cases	性别（男/女） Gender(male/female)	年龄［岁,（）］ Age(year)	身体质量指数［kg/m²,（）］ Body mass index	部位（左/右） Side(left/right)	膝关节炎程度（轻/重） Knee osteoarthritis(severe/mild)
观察组Observation group	45	23/22	47.0±3.4	24.5±2.0	15/30	25/20
对照组Control group	45	26/19	46.8±3.3	24.6±2.2	19/26	27/18
统计值 Statistical value		χ²=0.403	t=0.311	t=0.200	χ²=0.756	χ²=0.182
P值		>0.05	>0.05	>0.05	>0.05	>0.05

组别 Groups	例数 Number of cases	性别（男/女） Gender(male/female)	年龄［岁,（）］ Age(year)	身体质量指数［kg/m²,（）］ Body mass index	部位（左/右） Side(left/right)	膝关节炎程度（轻/重） Knee osteoarthritis(severe/mild)
观察组Observation group	45	23/22	47.0±3.4	24.5±2.0	15/30	25/20
对照组Control group	45	26/19	46.8±3.3	24.6±2.2	19/26	27/18
统计值 Statistical value		χ²=0.403	t=0.311	t=0.200	χ²=0.756	χ²=0.182
P值		>0.05	>0.05	>0.05	>0.05	>0.05

组别 Groups	例数 Number of cases	手术时间（min） Operation time	术中引流量（ml） Drainage volume	住院时间（d） Length of hospital stay
观察组 Observation group	45	65.7±2.6	39.9±2.9	5.3±3.8
对照组 Control group	45	45.4±2.9	25.0±3.7	8.0±2.8
t值		34.957	21.372	3.736
P值		<0.001	<0.001	<0.001

组别 Groups	例数 Number of cases	手术时间（min） Operation time	术中引流量（ml） Drainage volume	住院时间（d） Length of hospital stay
观察组 Observation group	45	65.7±2.6	39.9±2.9	5.3±3.8
对照组 Control group	45	45.4±2.9	25.0±3.7	8.0±2.8
t值		34.957	21.372	3.736
P值		<0.001	<0.001	<0.001

组别 Groups	例数 Number of cases	治疗前 Before treatment	治疗1周 One week after treatment	治疗2周 Two weeks after treatment	治疗3周 Three weeks after treatment	治疗4周 Four weeks after treatment
观察组 Observation group	45	89.0±3.7	70.1±3.7	55.5±3.0	46.2±2.0	35.8±1.8
对照组 Control group	45	89.1±3.1	75.7±2.5	60.9±1.5	55.0±3.0	40.4±1.7
F值		组间效应：19.934，时间效应：24.934，交互效应：10.923
P值		均为 <0.001

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