Hip Dislocation

A 20-year-old woman presented with long-standing right groin pain that she first noticed during high school sports. She did not seek evaluation until beginning college athletics, when she noted increasing pain and functional limitations.

Published results showed patients with a higher BMI had no differences in rates of dislocation or revision at 1 year to 2 years after primary total hip arthroplasty compared with patients with a normal BMI.

According to results published in the Journal of Arthroplasty, dual mobility acetabular cups may have comparable risks of aseptic revision and dislocation vs. metal or ceramic femoral head unipolar constructs in total hip arthroplasty.

GRAPEVINE, Texas — Elevated BMI in patients undergoing primary total hip arthroplasty may not be an independent risk factor for dislocation or revision for instability, according to results presented here.

Published results showed hemiarthroplasty was associated with a lower risk of hip dislocation at 1 year compared with total hip arthroplasty, although researchers questioned whether the results are clinically significant.

Compared with patients who undergo hip hemiarthroplasty for a femoral neck fracture, patients who undergo total hip arthroplasty are at increased risk for hip dislocations at 30 days, 1 year and 2 years after surgery, according to a study.

While dislocation and intraprosthetic dissociation rates in dual mobility total hip arthroplasty are low, it is crucial to diagnose and treat these “easy-to-miss” presentations to avoid further surgery, according to presenter.

Orthofix Medical Inc. and LimaCorporate have announced a licensing partnership for the U.S. market to provide a novel solution for patients with chronic high hip dislocation, according to a press release.

Prior hip instability was associated with a sevenfold increase in the odds of postoperative dislocation among patients undergoing isolated head and liner exchange, according to published results.

Compared with manual total hip arthroplasty, robotic-assisted THA produced more reliable cup positioning and offered superior protection against dislocation and revision, according to published results.