Key result
In patients undergoing hip arthroscopy, body mass index did not significantly impact postoperative outcome scores at 1, 2, or 3 years, with all cohorts showing significant improvements.
Why the study?
As population obesity rates continue to increase, the impact of body mass index on hip arthroscopy outcomes needed to be quantified.
Does BMI impact patient outcome scores following hip arthroscopy?
Cohort (n=459)
No
Does BMI impact patient outcome scores following hip arthroscopy?
p-value: p=0.448
Body mass index does not significantly impact patient-reported outcome scores following hip arthroscopy up to 3 years postoperatively.
BMI does not appear to worsen hip arthroscopy outcomes; this Level 3 cohort finding leaves open effects on complications and durability.
Background: Hip arthroscopy is commonly used for the treatment of hip pathologies. As population obesity rates continue to increase, elucidating the impact of body mass index (BMI) on hip arthroscopy outcomes is essential. This investigation was conducted to quantify the effects of BMI on hip arthroscopy outcomes. Methods: We conducted a retrospective medical records review of 459 patients undergoing hip arthroscopy at a single center from 2008 to 2016. The Harris Hip Score (HHS) and 2 component scores of the 12-Item Short Form Survey—the physical component score (PCS-12) and the mental component score (MCS-12)—were used to measure outcomes. Patients were stratified into 4 cohorts based on their BMI: underweight (BMI <18.5 kg/m2), normal weight (BMI 18.5 to 24.9 kg/m2), overweight (BMI 25.0 to 29.9 kg/m2), and obese (BMI ≥30.0 kg/m2). Results: At 1 and 2 years postoperatively, all cohorts experienced statistically significant improvements in the HHS and PCS-12. At 3 years postoperatively, statistically significant improvements were seen in the HHS for all cohorts; in the PCS-12 for the normal weight, overweight, and obese cohorts; and in the MCS-12 for the normal weight cohort. Intercohort differences were not statistically significant at 1, 2, or 3 years postoperatively. Conclusion: In our population, BMI did not have statistically significant effects on patient outcome scores following hip arthroscopy. All patient cohorts showed postoperative improvements, and differences between BMI cohorts were not statistically significant at any postoperative time point.
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Suri et al. (2023) conducted a cohort in Hip pathologies requiring hip arthroscopy (n=459). Body Mass Index (BMI) vs. Normal weight was evaluated on Intercohort differences in Harris Hip Score (HHS) at 3 years postoperatively (p=0.448). In patients undergoing hip arthroscopy, body mass index did not significantly impact postoperative outcome scores at 1, 2, or 3 years, with all cohorts showing significant improvements.
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