Rush Researchers Awarded for Hip Surgery Study

Friday, December 16, 2016

December 16, 2016

Shane J. Nho, MD, MS, and Alejandro A. Espinoza Orías, PhD — both assistant professors in the Department of Orthopedic Surgery — are part of a team of researchers who recently won the Best Basic Science Article Award from the journal Arthroscopy.

Their paper, “Capsulotomy Size Affects Hip Joint Kinematic Stability,” won from a field of more than 150 articles published between September 2015 and August 2016, making a “significant and unique contribution to the existing literature in arthroscopy and its related subspecialties,” the journal said.

Focusing on the understudied biomechanics of the hip capsule, the article looks specifically at repairing incisions on the hip capsule after an arthroscopy is concluded. When a surgeon needs to cut open the hip so surgical tools can get into the hip space, it was found that many times surgeons don’t stitch up this opening after they’re done with the surgery. This makes the hip unstable.

Tests conducted compared a normal hip, opening the hip of increasing size and then closing the hip with stitches. They found the larger the size of the opening, the more unstable the hip joint. The repaired capsule was able to stabilize the hip similar to a normal one, suggesting that surgeons should repair the hip capsule when the hip joint is done to avoid leaving an unbalanced and altered hip joint, which may cause other problems over time.

Nho and Espinoza Orías’s research has helped in pioneering the concept of the “neutral zone” to characterize stability of the joint kinematics.

The article will be highlighted in the January issue of Arthroscopy and on the journal’s website.