Physician Information Staff
THURSDAY, June 23, 2022 (HealthDay News) — Robot-assisted total hip arthroplasty (R-THA) shows advantages in dislocation rates and associated revisions over manual total hip arthroplasty (M- HAT), according to a recent study published online in The Arthroplasty Diary.
Jonathan H. Shaw, MD, of Henry Ford Hospital in Detroit, and colleagues compared dislocation rates and associated revisions between R-THA and M-THA. The analysis included 2,247 consecutive patients (1,724 PTH-M and 523 PTH-R) who received primary THR between January 2014 and June 2020 in the same hospital (three surgeons).
The researchers observed significantly lower dislocation rates in R-THA (0.6%) compared to M-THA (2.5%). All unstable R-THA cases were successfully treated conservatively, while 46% of unstable M-THAs were revised for recurrent instability. In the R-THA group, cup anteversion was greater (25.6 degrees for R-THA versus 20.6 degrees for M-THA), while cup inclination was lower (42 .5 degrees for R-THA versus 47.0 degrees for M-THA). There were no significant differences observed for patient-reported outcome measures or other complications.
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“Patients, in consultation with their joint replacement surgeon, should decide which surgical option is best for them,” Davis said in a statement. “Robotic surgery for hip replacement surgery continues to evolve and larger studies are needed to better define the benefits.”