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No short-term benefits seen with MIS bipolar hemiarthroplasty for femoral neck fractures
Tsukada S. J Ortho Sci. 2010. doi:10.1007/s00776-010-1541-6.
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A non-randomized study comparing minimally invasive bipolar hemiarthroplasty with conventional bipolar hemiarthroplasty for femoral neck fractures finds no significant differences in hip function between the procedures at 1 year.
Researchers from Japan studied 83 patients who had a bipolar hemiathroplasty (BHA) performed between April 2007 and February 2009. Patients in the control group underwent conventional BHA, and the comparison cohort had an minimally invasive BHA using a direct anterior approach performed without muscle or tendon detachment, according to the study abstract.
The researchers discovered that the groups had similar demographics such as gender, age, weight, height and body mass index. They also found no significant differences between the groups regarding pre-injury Hospital for Special Surgery (HSS) scores and time from admission to surgery.
The study revealed higher HHS scores in the minimally invasive group at 1 month compared with the conventional BHA cohort (24.2 vs. 20.2). However, the groups had similar scores at 1-year follow-up (29.9 vs. 27.2).
“The effectiveness of MIS-BHA for femoral neck fracture is limited to the early postoperative period,” the authors concluded. “Therefore, MIS-BHA does not appear to be appropriate for treatment of femoral neck fractures.”