BACKGROUND: The surgical treatment of pathological subtrochanteric fractures has been associated with technical difficulties and frequent failures. We analyzed survival, risk factors for death, and outcome after surgical treatment. METHODS: The study group consisted of 194 patients with pathological subtrochanteric femur fractures operated during 1999-2009. Cox multiple-regression analysis was performed to study risk factors and results were expressed as hazard ratios (HR). We included a control group with non-pathological subtrochanteric fractures (n = 87) for comparison. RESULTS: The median age at surgery was 68 (29-96) years in the study group and 82 (66-101) in the controls. The 1-year survival rate after surgery was 33% (95% CI: 26-40) in the study group and 85% (79-93) in the controls. In the study group, the risk of death after surgery was increased for patients ≥65 years of age (HR 1.5, 95% CI: 1.1-2.1), with a moderate (HR 2.2, 1.5-3.4) and poor (HR 2.9, 1.6-5.2) Karnofsky score, with visceral metastases (HR 1.6, 1.1-2.3), and perioperative hemoglobin levels <100 g/L (HR 2.2, 1.3-3.7). In patients with pathological fractures, there was no statistically significant difference concerning reoperation rates comparing intramedullary nails (9%) with endoprostheses (6%; P = 0.3). CONCLUSIONS: Surgery for pathological subtrochanteric femur fractures is a relatively safe and effective procedure.
BACKGROUND: The surgical treatment of pathological subtrochanteric fractures has been associated with technical difficulties and frequent failures. We analyzed survival, risk factors for death, and outcome after surgical treatment. METHODS: The study group consisted of 194 patients with pathological subtrochanteric femur fractures operated during 1999-2009. Cox multiple-regression analysis was performed to study risk factors and results were expressed as hazard ratios (HR). We included a control group with non-pathological subtrochanteric fractures (n = 87) for comparison. RESULTS: The median age at surgery was 68 (29-96) years in the study group and 82 (66-101) in the controls. The 1-year survival rate after surgery was 33% (95% CI: 26-40) in the study group and 85% (79-93) in the controls. In the study group, the risk of death after surgery was increased for patients ≥65 years of age (HR 1.5, 95% CI: 1.1-2.1), with a moderate (HR 2.2, 1.5-3.4) and poor (HR 2.9, 1.6-5.2) Karnofsky score, with visceral metastases (HR 1.6, 1.1-2.3), and perioperative hemoglobin levels <100 g/L (HR 2.2, 1.3-3.7). In patients with pathological fractures, there was no statistically significant difference concerning reoperation rates comparing intramedullary nails (9%) with endoprostheses (6%; P = 0.3). CONCLUSIONS: Surgery for pathological subtrochanteric femur fractures is a relatively safe and effective procedure.
Authors: Julie J Willeumier; Mustafa Kaynak; Peer van der Zwaal; Sven A G Meylaerts; Nina M C Mathijssen; Paul C Jutte; Panagiotis Tsagozis; Rikard Wedin; Michiel A J van de Sande; Marta Fiocco; P D Sander Dijkstra Journal: Clin Orthop Relat Res Date: 2018-09 Impact factor: 4.176
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