A STUDY TO DETERMINE THE FUNCTIONAL OUTCOME IN THE MANAGEMENT OF STABLE PER TROCHANTERIC HIP FRACTURES WITH DYNAMIC HIP SCREW.

BACKGROUND: The use of a dynamic hip screw (DHS) for stable as well as unstable intertrochanteric hip fracture xation has been successfully applied in fracture healing for more than 25years. DHS xation on unstable trochanteric fractures still has a more failure rate compared to stable fractures, mostly due to osteoporosis in patients. Thus, this study is aimed to investigate the biomechanical property of the DHS system to provide the stable xation in intertrochanteric A1 and A2 fractures1. MATERIAL AND METHODS: This is a retrospective study of 54 patients with trochanteric fractures of the femur that were treated with DHS (Dynamic hip screw) during the period of two years from April 2019 to March 2021 in a tertiary care hospital. All surgeries were performed under spinal and epidural anaesthesia. Surgery done was an internal xation with DHS plate. Results: Among 54 cases, 55.5% were A1, and 44.4% were A2 pertrochanter fractures. The clinical and functional outcomes of the procedure were excellent in 25 patients (46.29%), good in 19 patients (35.18%), fair in 8 patients (14.81%), and 2 (3.7%) of the patients had poor results. CONCLUSIONS: Intertrochanteric fractures are essentially fractures of the elderly, which demand prompt treatment and early ambulation. The dynamic hip screw is the operative treatment of choice for stable trochanteric fractures

Atraumatic Posterior Hip Dislocation following Short Femoral Nail for Intertrochanteric Fracture Treated by Dual Mobility System in Total Hip Arthroplasty: A Case Report

Introduction: Atraumatic hip dislocation after short femoral nail (SFN) fixation for an intertrochanteric fracture is extremely rare. Case Report: An 84-year-old woman presented with an atraumatic posterior hip dislocation that occurred 8 years after SFN fixation for an intertrochanteric hip fracture. She experienced an acute-onset left hip pain when standing up from a sitting position while bathing at a day care facility. We performed total hip arthroplasty (THA) with a dual mobility system. During the post-operative THA evaluation, the combined anteversion angle was within the optimum range of 57. However, the dislocation recurred after the THA. During the revision THA, a dual mobility system was used to moderately extend the stem neck. Measures were adopted to strain the posterior soft tissues of the hip joint. We speculated that the posterior hip joint capsule ruptured because the support of the posterior hip joint was weak after the intertrochanteric hip fracture. At the final follow-up visit at 6 months after the operation, the hip joint pain had disappeared, and her activities of daily living recovered to almost the same level as her preinjury activities. Conclusions: We should consider the lack of support of posterior soft tissues as a cause of this atraumatic posterior hip dislocation following intertrochanteric fracture fixation. Keywords: Atraumatic posterior hip dislocation, post-operative state of intertrochanteric hip fracture, short femoral nail, total hip arthroplasty, dual mobility system.