ArticleWorld journal of orthopedics2025
Prior leg length discrepancy in total hip arthroplasty patients causes greater implant complications and faster time to revision.
Article in World journal of orthopedics, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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1 citing paper in PubMed.
- When performing a total hip arthroplasty, it is essential to correct any pre-existing leg-length discrepancy during surgery.World journal of orthopedics · 2026Article
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7 authors.
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Abstract
backgroundLeg length discrepancy (LLD) following total hip arthroplasty (THA) is a common complaint, leading to decreased patient satisfaction. However, the effect of LLD before THA on outcomes and complications is not well defined.
aimTo assess the effect of prior LLD on rates of falls, implant-related complications, stay length, readmissions, and implant survival following THA.
methodsA retrospective review of a nationwide insurance database was conducted from 2010 to 2021. All cases of THA and those with a prior diagnosis of LLD were identified. THA patients with LLD were matched to control patients 1:5 based on demographic and comorbidity profiles. Two-year fall rates and implant complications, lengths of stay, 90-day readmissions, and time to revision were compared between cohorts.
resultsA total of 2038 patients with LLD were matched to 10165 control patients. The LLD group showed significantly greater rates of falls [odds ratio (OR) = 1.58; 95% confidence interval (95%CI): 1.24-2.01], dislocation (OR = 2.61; 95%CI: 2.10-3.24), mechanical loosening (OR = 4.58; 95%CI: 3.28-6.29), and periprosthetic fracture (OR = 2.70; 95%CI: 1.96-3.72) compared to the control group (all
conclusionLLD in patients having THA is related with significantly higher fall risk, rates of implant-related complications, LOS, and quicker time to revision. Identifying patients with LLD before their THA may help in identifying risks, better patient counselling, and more effective preoperative planning. However, the study have important limitations: Its design lacks information on the degree and cause of LLD, the time between diagnosis and surgery, and which leg with the discrepancy underwent the operation. Future well-designed studies should confirm the findings of this study.
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