Sleep Quality at 8 Weeks After Robotic-Assisted vs Conventional Total Knee Arthroplasty .
A prospective study comparing sleep quality using Pittsburgh Sleep Quality Index at 8 weeks after robotic-assisted versus conventional total knee arthroplasty: a single-center study.
J Robot Surg . 2025 Apr 30;19(1):191.Sixty-eight patients with end-stage osteoarthritis were randomized to receive robotic-assisted TKA (RATKA) using the CUVIS system (n=34) or conventional TKA (n=34). The primary outcome was sleep quality by PSQI at 8 weeks. Secondary descriptors included baseline comparability, complications, and effect size. Outcomes were assessed at 8 weeks under a standardized anesthetic (spinal + adductor canal block), surgical approach (medial parapatellar, cemented), and multimodal analgesia. Overall, the results revealed significantly better sleep quality after RATKA: mean PSQI 5.69±0.71 versus 6.25±0.92 for CTKA. These findings suggest robotic assistance may modestly improve early postoperative sleep—potentially via reduced pain/soft-tissue trauma and optimized component positioning.
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