AI Article Synopsis
- The study investigates how preoperative factors, particularly the hip abductor's modulus of elasticity, influence perceived leg length discrepancy (PLLD) one month following total hip arthroplasty (THA).
- It involved 73 patients with osteoarthritis and analyzed connections between their preoperative hip strength, motion range, pain levels, and pelvic positioning to the occurrence of PLLD.
- Findings suggest that a higher hip abductor modulus significantly correlates with PLLD, with a cutoff value of 16.32 kPa indicating higher risk, showing a sensitivity of 81.8% and specificity of 72.5%.
Article Abstract
Objective: Preoperative factors related to perceived leg length discrepancy (PLLD) after total hip arthroplasty (THA) are not well studied. This study aimed to examine the preoperative factors, including hip abductor modulus, related to PLLD one month after THA.
Methods: The study included 73 patients diagnosed with osteoarthritis secondary to developmental dysplasia of the hip and a posterior approach to surgery. Multiple logistic regression analysis was performed using the presence or absence of PLLD as the dependent variable and preoperative hip abductor's modulus of elasticity, pain, hip abduction range of motion, hip abductor muscle strength and pelvic obliquity as the independent variable. Additionally, receiver operating characteristic curves were used for the extracted variables for calculating the cutoffs, sensitivity, specificity and area under the curve (AUC) to determine the presence or absence of PLLD. The significance level was set at p<0.05.
Results: The hip abductor modulus (odds ratio=1.13; 95% confidence interval=1.06-1.21; p<0.001) was selected as a preoperative factor. The cutoff value to determine the presence or absence of a PLLD was 16.32 kPa. The sensitivity and specificity were 81.8% and 72.5%, respectively, and the AUC was 0.8137.
Conclusion: The hip abductor muscle elastic modulus affected PLLD one month after THA. If the preoperative hip abductor elastic modulus is higher than the cutoff value, it may affect the appearance of PLLD at one month postoperatively.
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|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8752822 | PMC |
| http://dx.doi.org/10.1298/ptr.E10102 | DOI Listing |
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