16:38 PM


Orthopedics This Week interviews Jonathan M. Vigdorchik, MD, hip and knee surgeon at HSS about his study: Complication Rate after Primary Total Hip Arthroplasty Using the Posterior Approach and Enabling Technology: A Consecutive Series of 2,888 Hips. 

Citing the snarl of statistics regarding this very subject in the literature, a team from HSS designed a study to, they hoped, settle the issue of the optimal (if not also appropriate) total hip arthroplasty (THA) surgical approach.

In order to compare dislocation rates of the posterior versus the direct anterior approach, the investigators reviewed 2,888 consecutive, primary THAs performed via the posterior approach between 1/1/18 and 9/30/21. The procedures were performed by one of four orthopedic surgeons.

The team collected data on all patients who experienced a dislocation following a primary THA as well as information on patients who had complications for various reasons (infection, fracture, dislocation, other).

Dr. Vigdorchik explained, “We did not use any fancy software, only a standardized series of X-rays for hip-spine analysis: AP [anteroposterior] pelvis, a standing lateral and a sitting lateral X-ray including the hip and spine. We used computer navigation and robotics to perform the surgery and execute the preoperative plans.”

In three years of follow-up, 39 patients (39 hips) had some form of musculoskeletal issue (dislocation, infection, periprosthetic fracture, or other) related to the involved joint.

“The total complication rate was 1.1%., the dislocation rate was 0.35% and the risk of infection was 0.24%,” stated Dr. Vigdorchik. “These rates are the lowest in the literature for hip replacement surgery, regardless of surgical approach.”

Read the full article at ryortho.com.