Do patients lose weight after total hip arthroplasty?
Carlos Roberto Schwartsmann1, Felipe Ribeiro Ledur2, Leandro de Freitas Spinelli3
1Universidade Federal de Ciências da Saúde de Porto Alegre (UFCSPA), Porto Alegre, RS, Brazil ; Orthopedics and Traumatology Service, Santa Casa de Porto Alegre, Porto Alegre, RS, Brazil.
Revista Brasileira De Ortopedia
|August 1, 2015
Summary
Total hip arthroplasty (THA) did not significantly alter body mass index (BMI) in most patients. While some saw an increase, obese individuals experienced a slight decrease in BMI post-surgery.
Area of Science:
- Orthopedic Surgery
- Metabolic Health
Background:
- Total hip arthroplasty (THA) is a common procedure for hip joint issues.
- Post-surgical changes in body composition and metabolic markers are of clinical interest.
Purpose of the Study:
- To evaluate the impact of total hip arthroplasty (THA) on body mass index (BMI).
- To analyze changes in BMI from pre-operative to post-operative states.
Main Methods:
- Retrospective analysis of 100 patients undergoing THA.
- Stratification of patients based on World Health Organization (WHO) BMI categories.
- Comparison of pre- and post-operative BMI measurements.
Main Results:
- A general mean increase in BMI of 0.4 kg/m² was observed.
- BMI increased in normal weight and overweight patients, but slightly decreased in obese patients.
- BMI remained unchanged in 73% of patients post-THA.
Conclusions:
- Improved mobility from THA did not lead to significant anthropometric reductions in most patients.
- THA's effect on BMI is variable, with no consistent decrease observed across all weight categories.


