Abstract

• PURPOSE: The purpose of this study was to analyze the factors influencing the failure of union in the intertrochanteric femoral fractures. MATERIALS AND METHODS: Authors divided the patients treated with lag screws into two groups, 9 cases of the non-union group and 46 cases of the union group. And analyzed the preoperative, intraoperative and postoperative factors influencing the union. RESULTS: Age, displacement in AP film after surgery, displacement of lesser trochanter after surgery, superior or anterior position of lag screw, displacement of lag screw and change of neck-shaft angle were significantly higher in the non-union group. Displacement in AP radiograph after surgery and displacement of lag screw were two significant factors by multivariate logistic regression analysis. CONCLUSION: In case of intertrochanteric fracture treated with lag screw, the probabilities of union failure are increased when the displacement is more than 5 mm in AP plane postoperatively and the sliding of lag screw is more than 10 mm in follow-up.
• Key words: Femur, Intertrochanteric fracture, Union failure

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Citations to this article as recorded by  

• Safety and Effectiveness of the Anchor Augmentation with Bone Cement on Osteoporotic Femoral Fracture: A Systematic Reviews
  So Young Kim
  Journal of the Korean Fracture Society.2019; 32(2): 89.     CrossRef
• Treatment of Failed Intertrochanteric Fractures to Maintain the Reduction in Elderly Patients
  Soon-Yong Kwon, Hyun-Woo Park, Sang-Uk Lee, Soo-Hwan Kang, Jae-Young Kwon, Jung-Hoon Do, Seung-Koo Rhee
  Journal of the Korean Fracture Society.2008; 21(4): 267.     CrossRef