How arthroscopy helps young adults with borderline hip dysplasia: Study | Health - Hindustan Times

How arthroscopy helps young adults with borderline hip dysplasia: Study

ANI | | Posted by Tapatrisha Das, Washington
May 03, 2023 12:00 PM IST

The study shows that primary arthroscopy can help with borderline hip dysplasia, while avoiding the need of hip replacement surgery.

A study found that for young individuals with borderline hip dysplasia (BHD), primary arthroscopy improves symptoms and function while eliminating the need for hip replacement surgery in the majority of instances.

How arthroscopy helps young adults with borderline hip dysplasia: Study(Shutterstock)
How arthroscopy helps young adults with borderline hip dysplasia: Study(Shutterstock)

The findings of the study were published in the Journal of Bone and Joint Surgery. The journal is part of the Lippincott portfolio and is published in collaboration with Wolters Kluwer.

According to a case study by Benjamin G. Domb, MD of the American Hip Institute in Chicago, ten-year follow-up data gives additional evidence on the benefits of arthroscopy for the treatment of BHD.

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BHD is a congenital condition in which the hip socket does not fully cover the ball-like femoral head. Symptoms such as pain, limping, and hip instability often do not develop until young adulthood. Over time, patients with BHD are at risk of developing osteoarthritis, in many cases leading to total hip arthroplasty (THA).

There is ongoing controversy regarding the best treatment for BHD. The standard treatment is surgery (periacetabular osteotomy) to reconstruct and reposition the hip joint. Arthroscopy has emerged as a less-invasive alternative procedure, with studies showing improvement in symptoms and hip function at short- to medium-term follow-up. However, because of a lack of long-term follow-up data, it has been unclear whether arthroscopy is a "temporary or definitive solution," according to the authors.

To address this question, Dr. Domb and colleagues report their experience with primary arthroscopic surgery for BHD. Typical of patients requiring BHD treatment, the patients were young (mean age, 31 years) and predominantly female (38 of 45 patients). All patients met standard radiographic criteria for BHD diagnosis (i.e., a lateral center-edge angle between 18° and 25°).

Arthroscopic surgery included tightening (plication) of the joint capsule and preservation of the cartilage lining the labrum. All patients had 10-year follow-up data to assess the need for conversion to THA as well as patient-reported ratings of symptoms and hip function.

Eight of the 35 patients underwent THA during follow-up, performed at an average of about five and a half years after arthroscopy. On Kaplan-Meier analysis, estimated "survivorship" was 82.8 per cent - about four out of five patients with BHD could expect to remain free of THA for at least 10 years after primary arthroscopy. This rate was compared favourably to a matched control group of patients without BHD.

Patients who required THA were older and heavier than those who did not. After adjustment for other factors, the likelihood of THA was 4.4 times higher for patients with a body mass index of 23 kg/m2 or greater, and 7.1 times higher for those 42 years or older.

Primary arthroplasty for BHD was also associated with significant improvement on standard patient-reported outcome measurements, including pain and hip function. For example, three-fourths of patients met the minimum clinically important difference for improvement in pain score.

Building on previous short- to medium-term studies, the study adds new evidence showing good long-term outcomes following primary arthroplasty for BHD. In addition to a low rate of conversion to THA over 10-year follow-up, less-invasive treatment with arthroscopy also avoids the longer recovery time required by standard surgery for BHD.

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This story has been published from a wire agency feed without modifications to the text. Only the headline has been changed.
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