Radiographic Predictors of Tension Band Wiring Failure in Patellar Fractures
July 31, 2025
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3 min
A retrospective study over ten years evaluated the outcomes of 32 patients with transverse patellar fractures treated with tension band wiring (TBW). The study highlighted a 28.1% failure rate, mainly attributed to cerclage wire slippage and wire breakage. Longer Kirschner wire lengths and single-knot constructs were linked to higher failure risks, with significant differences in radiographic parameters. Notably, the most common injury mechanisms were high-energy falls and traffic accidents, with no failures associated with sex or BMI. The research underscores the importance of selecting appropriate implant lengths and configurations in surgical planning.
1. 10-year retrospective study of 32 patients with transverse patellar fractures. 2. 28.1% failure rate due to wire slippage and breakage. 3. Median time to failure was 58 days. 4. Longer K-wire lengths associated with failure. 5. Single-knot constructs had a 66.7% failure rate. 6. No failures linked to sex, BMI, or height. 7. Key injury mechanisms included high-energy falls and traffic accidents. 8. Emphasis on appropriate implant selection in surgeries.
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