Abstract
Background
Trochanteric osteotomies (TO) facilitate exposure and “true hip reconstruction” in complex primary and revision total hip arthroplasty (THA). However, non-union represents a clinically relevant complication. The purpose of the present study was to identify risk factors for trochanteric non-union.
Methods
All cases of THA approached by TO during the past 10 years were analyzed with respect to potential risk factors for non-union.
Results
In 298 cases complete data were available for analysis. Trochanteric union occurred in 80.5%, fibrous union in 5.4% and non-union 14.1%. Risk factor analysis revealed a four times higher risk for non-union in anterior trochanteric slide osteotomies compared to extended trochanteric osteotomies and a three times higher risk in cemented versus non-cemented stems. Multiple logistic regression analysis revealed patient’s age and use of cement to be independent risk factors for non-union.
Conclusions
Femoral cementation and increasing age negatively influence the union of trochanteric osteotomies.
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Wieser, K., Zingg, P. & Dora, C. Trochanteric osteotomy in primary and revision total hip arthroplasty: risk factors for non-union. Arch Orthop Trauma Surg 132, 711–717 (2012). https://doi.org/10.1007/s00402-011-1457-4
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DOI: https://doi.org/10.1007/s00402-011-1457-4