ArticleArchives of orthopaedic and trauma surgery2025
Femoral malrotation after trochanteric fracture nailing: what is the safety zone of limb rotation during closed reduction?
Article in Archives of orthopaedic and trauma surgery, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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Abstract
introductionImproper closed trochanteric fracture reduction can cause rotational malposition which can lead to serious consequences. The primary objective of this study was to assess the hypothetical threshold at which excessive rotation becomes hazardous due to a significant postoperative malrotation. MATERIALS AND
methodsWe conducted a prospective study focused on closed reduction in intramedullary nailing of trochanteric fractures (AO 31A1-3) in 100 consecutive patients and its influence on final malrotation. Immediately after the closed reduction, the rotation of affected limb was measured using a balanced goniometer and the values were compared to the postoperative CT calculation. Final femoral malrotation exceeding 15° was considered significant. All results were statistically analyzed.
resultsIn total we observed femoral malrotation exceeding 15° in 33 patients (33.3%). Internal rotation was significantly more common than external rotation (31 vs. 2 patients). Intraoperative rotation up to 15° resulted in a malrotation of 10.3% (3/29 patients). When limb rotation on the traction table exceeded 20°, malrotation incidence increased to 51.0% (26/51 patients), making this fixed position a risk factor for significant femoral malrotation (p = 0.0076). General anesthesia was also associated with a significantly higher rate of malrotation compared to spinal anesthesia (p = 0.0154), however we did not find any statistical difference in error rates based on patient BMI or physiological femoral neck ante-version.
conclusionsOur findings underscore the significant risk of femoral malrotation associated with perioperative rotations beyond 20°, emphasizing the need for precise rotational control during surgery. Excessive rotation on the traction table in an attempt to achieve better fracture alignment significantly increases the risk of femoral malrotation.
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