Early Postoperative clinical recovery through Robotic arm-as
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This study compared the early clinical recovery of total hip arthroplasty (THA) using computer navigation systems (nTHA) and robotic arm-assisted THA (rTHA).

30 prospective subjects who underwent rTHA were clinically compared to 30 subjects who underwent nTHA. Clinical data (surgical time, intraoperative blood loss, pain severity, number of days to independent walking, and Harris Hip Score (HHS) at discharge), and radiographic parameters (inclination and anteversion angles) were statistically compared between the two groups.

--Follow-up times were 24.3±6.0 and 27.0±7.0 days in the rTHA and nTHA groups, respectively.

--The surgical time (135.1±13.9 min vs. 146.2±12.8 min), number of days to independent walking (7.2±2.0 vs. 11.5±3.0 days), and postoperative pain using a numeric rating scale on postoperative days 7, 10,, and 14 (1.4±0.9 vs. 2.2±1.2; 1.0±0.8 vs. 1.8±1.1; 0.3±0.5 vs. 1.1±0.9 respectively) were significantly reduced in the rTHA group compared to the nTHA group.

--The rTHgroup showed a significantly higher postoperative HHS compared to the nTHA group (85.3 ± .3.2 vs. 81.0±8.5).

--No statistically significant difference was observed in radiographic parameters between the groups; however, the incidence of intraoperative target angle changes was significantly lower in the rTHA group than in the nTHA group (0/30 subjects [0%] vs. 11/30 subjects [36.7%]).

Finally, the rTHA group had slightly shorter surgical periods, postoperative pain, and days to independent walking than the nTHA group, and the HHS at discharge was significantly higher. As a result, in terms of early clinical rehabilitation, the rTHA group outperformed the nTHA group.

Source: https://bmcmusculoskeletdisord.biomedcentral.com/articles/10.1186/s12891-021-04162-3