Journal of orthopaedic surgery and research · 2026
Comparative outcomes of robot-assisted versus conventional TKA in rheumatoid arthritis patients.
СтатьяСравнительное исследованиеНазвание и аннотация: Перевод в очереди
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Li Pengcheng, Zhao Runkai, Liu Te, Fan Menglin, Ren Haichao, Zhao Runzhi, Lu Juntao, Yang Shuai, Lu Tan, Ji Quanbo, Zhang Guoqiang
Аннотация
OBJECTIVE: To evaluate the surgical outcomes of RA-TKA compared to C-TKA in patients with rheumatoid arthritis.
METHODS: A retrospective study was conducted at the PLA General Hospital, enrolling 239 rheumatoid arthritis patients who underwent either robot-assisted TKA or conventional TKA, with 102 and 187 patients in the RA-TKA and C-TKA groups, respectively. All patients were followed up 2 years. Follow-up indicators included KSS and WOMAC scores, single-leg standing time(SLST), and knee joint range of motion. The patients were evaluated at 2 weeks, 3 months, 6 months, 1year and 2 years postoperatively. All data were prospectively collected.
RESULTS: At 2 weeks postoperatively, the RA-TKA group showed superior KSS symptom scores (9.23 ± 3.38 vs. 10.79 ± 2.67 p = 0.001) compared to the C-TKA group. Additionally, at 2 weeks, the RA-TKA group had better WOMAC total scores (30.85 ± 9.92 vs. 34.61± 13.47 p = 0.01), pain (6.06 ± 2.55 vs. 6.81 ± 2.83 p = 0.027), stiffness (2.62 ± 1.15 vs. 2.90 ± 0.99 p = 0.037), and Physical function (22.17 ± 8.11 vs. 24.90 ± 12.34 p = 0.032). At 3 months postoperatively, the RA-TKA group outperformed the C-TKA group in WOMAC total scores (13.3 ± 7.43 vs. 17.56 ± 9.34 p= 0.000), Physical function (7.41 ± 5.69 vs. 12.1± 7.56 p= 0.000), and knee range of motion (109.68 ± 10.15 vs. 105.63 ± 9.59 p = 0.005). At 6 months postoperatively, the RA-TKA group had higher satisfaction scores (31.54 ± 5.34 vs. 28.56 ± 5.36 p = 0.000). There were no significant differences in postoperative complications between the two groups.
CONCLUSIONS: RA-TKA can achieve better early outcomes in patients with rheumatoid arthritis, facilitating early rehabilitation. This provides important evidence for selecting surgical methods in rheumatoid osteoarthritis.
METHODS: A retrospective study was conducted at the PLA General Hospital, enrolling 239 rheumatoid arthritis patients who underwent either robot-assisted TKA or conventional TKA, with 102 and 187 patients in the RA-TKA and C-TKA groups, respectively. All patients were followed up 2 years. Follow-up indicators included KSS and WOMAC scores, single-leg standing time(SLST), and knee joint range of motion. The patients were evaluated at 2 weeks, 3 months, 6 months, 1year and 2 years postoperatively. All data were prospectively collected.
RESULTS: At 2 weeks postoperatively, the RA-TKA group showed superior KSS symptom scores (9.23 ± 3.38 vs. 10.79 ± 2.67 p = 0.001) compared to the C-TKA group. Additionally, at 2 weeks, the RA-TKA group had better WOMAC total scores (30.85 ± 9.92 vs. 34.61± 13.47 p = 0.01), pain (6.06 ± 2.55 vs. 6.81 ± 2.83 p = 0.027), stiffness (2.62 ± 1.15 vs. 2.90 ± 0.99 p = 0.037), and Physical function (22.17 ± 8.11 vs. 24.90 ± 12.34 p = 0.032). At 3 months postoperatively, the RA-TKA group outperformed the C-TKA group in WOMAC total scores (13.3 ± 7.43 vs. 17.56 ± 9.34 p= 0.000), Physical function (7.41 ± 5.69 vs. 12.1± 7.56 p= 0.000), and knee range of motion (109.68 ± 10.15 vs. 105.63 ± 9.59 p = 0.005). At 6 months postoperatively, the RA-TKA group had higher satisfaction scores (31.54 ± 5.34 vs. 28.56 ± 5.36 p = 0.000). There were no significant differences in postoperative complications between the two groups.
CONCLUSIONS: RA-TKA can achieve better early outcomes in patients with rheumatoid arthritis, facilitating early rehabilitation. This provides important evidence for selecting surgical methods in rheumatoid osteoarthritis.