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Total hip arthroplasty does not aid weight loss.
1Department of Orthopaedics, St Peter's Hospital, Chertsey, Surrey, UK. fionamiddleton@doctors.org.uk
Annals of the Royal College of Surgeons of England
|March 31, 2007
Summary
Total hip arthroplasty (THA) did not lead to weight loss in patients, regardless of their initial body mass index (BMI). Instead, BMI significantly increased after surgery, contrary to expectations of improved mobility aiding weight reduction.
Area of Science:
- Orthopedic Surgery
- Metabolic Health
- Obesity Research
Background:
- Increased body mass index (BMI) is a known risk factor for hip osteoarthritis.
- Patients with hip osteoarthritis often experience pain and limited mobility, hindering weight loss efforts.
- A common assumption is that total hip arthroplasty (THA) improves mobility and facilitates subsequent weight loss.
Purpose of the Study:
- To investigate the impact of total hip arthroplasty (THA) on body mass index (BMI).
- To determine if THA leads to weight loss in patients, irrespective of their pre-operative BMI.
Main Methods:
- Retrospective review of 180 patients who underwent total hip arthroplasty (THA).
- Analysis of body mass index (BMI) measurements taken before and two years after surgery.
Main Results:
- Body mass index (BMI) significantly increased in the postoperative period for all patients.
- This increase in BMI was observed in both patients with a pre-operative BMI within the recommended range and those classified as obese.
- Statistical significance was noted for both groups (P < 0.001 and P = 0.01, respectively).
Conclusions:
- Total hip arthroplasty (THA) does not result in a reduction of body mass index (BMI).
- Weight loss was not observed following hip replacement surgery, challenging the assumption of improved mobility leading to decreased BMI.
