Comparable hip arthroscopy results seen in patients with vs. without borderline dysplasia
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Key takeaways:
- Results showed patients with borderline hip dysplasia had comparable hip arthroscopy survivorship vs. controls.
- Patients with borderline hip dysplasia also had comparable rates of revision vs. controls.
Results showed patients with borderline hip dysplasia who underwent primary hip arthroscopy for femoroacetabular impingement had comparable patient-reported outcomes at 10-year follow-up to patients without borderline hip dysplasia.
“Results of the present study are largely encouraging regarding the prospects of patient-reported outcome improvement after hip arthroscopy in patients with borderline hip dysplasia,” the researchers wrote in the study. “This durability of outcome improvement suggests that the improvement seen in previous short-term and midterm follow-up studies is sustained at long-term follow-up.”
Researchers retrospectively analyzed data from 28 patients with borderline hip dysplasia who underwent hip arthroscopy for femoroacetabular impingement syndrome between January 2012 and February 2013. These patients were matched by age, sex and BMI to 84 control patients without borderline hip dysplasia.
Patient-reported outcomes measured preoperatively and at 10 years postoperatively included the Hip Outcome Score (HOS)-activities of daily living and sports subscales, modified Harris hip score, 12-item International Hip Outcome Tool and VAS for pain and satisfaction. Researchers also assessed achievement rates of minimal clinically important difference, patient-acceptable symptom state (PASS) and Kaplan-Meier survivorship curves.
At 10-year follow-up, researchers found patients with borderline hip dysplasia had significantly worse HOS-sports subscale scores compared with the control group. In addition, patients with borderline hip dysplasia had lower rates of PASS achievement compared with the control group.
However, researchers found patients with borderline hip dysplasia had comparable outcomes in minimal clinically important difference achievement rates, long-term hip arthroscopy survivorship and rates of revision hip arthroscopy or conversion to THA compared with the control group.
“Despite lower rates of PASS achievement in the borderline hip dysplasia cohort compared with controls, patients with borderline hip dysplasia performed well overall at 10 years after hip arthroscopy,” the researchers wrote. “Therefore, patients with borderline hip dysplasia may benefit from surgical treatment when indicated, and the presence of a slightly decreased lateral center-edge angle should not preclude a surgical discussion for management with hip arthroscopy.”
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