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Prior bariatric surgery may decrease the rate of re-operation and revision following total hip arthroplasty.

C D Watts¹, J R Martin², M T Houdek¹

¹Mayo Clinic, 200 1st St GW Gonda 14S, Rochester, MN 55905, USA.

The Bone & Joint Journal

|September 3, 2016

Summary

This summary is machine-generated.

Obese patients who had bariatric surgery experienced fewer re-operations and revisions after total hip arthroplasty (THA). Prior bariatric surgery appears beneficial for THA outcomes in this population.

Keywords:

Bariatric surgery Complication Infection Total hip arthroplasty

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Area of Science:

Orthopedic Surgery
Bariatric Surgery
Obesity Management

Background:

Obesity is a significant risk factor for complications following total hip arthroplasty (THA).
Bariatric surgery leads to substantial weight loss, potentially altering surgical outcomes.
The impact of prior bariatric surgery on THA outcomes in obese patients remains under investigation.

Purpose of the Study:

To compare the outcomes of total hip arthroplasty (THA) in obese patients who underwent bariatric surgery versus those who did not.
To assess the risks of re-operation and revision after THA in these two groups.

Main Methods:

A matched cohort study design was employed.
The study included 47 THAs in the bariatric group and 94 THAs in the comparison group.
Mean follow-up after THA was three years.

Main Results:

Patients in the bariatric group showed a significant improvement in Body Mass Index (BMI) after bariatric surgery (from 49.7 kg/m² to 35.3 kg/m²).
The comparison group had a significantly increased risk of re-operation (HR 3.2) and revision (HR 5.4) compared to the bariatric group.
These findings were statistically significant (p < 0.01).

Conclusions:

Prior bariatric surgery is associated with a dramatic improvement in BMI and a lower risk of re-operation and revision after THA in the short- to mid-term.
While promising, larger prospective studies are needed to confirm these findings and guide clinical recommendations.
The study suggests potential benefits of staged bariatric surgery followed by THA in obese patients.