Homolateral Hip Dislocation, Floating Hip Injury, and Floating Knee Injury: A Unique Presentation of a Rare Injury

Abstract

Introduction: Floating joint injury is an unusual injury pattern that is hard to deal with and often caused by high-energy trauma. In this report, a patient had a homolateral floating hip injury (FHI), floating knee injury (FKI), and hip dislocation at our hospital, and there was no case reported before. Case Presentation: A 48-year-old driver who encountered a traffic accident was seen. Radiologic examination revealed acetabulum comminuted fractures and hip joint posterior dislocation with some fracture pieces in the joint space on the left side. The femur, tibia, and fibula were simultaneously disrupted with open trauma of the left calf. Open reduction and screw-plate fixation of the acetabulum fracture, intramedullary nail fixation of the femoral fracture, and external fixator for his tibia and fibula fracture were carried out. Conclusion: The treatment of multiple fractures should focus on life-threatening injuries above all, and then deal with the fractures according to the situation of the patient. Open reduction and internal fixation are priority choices except in some special cases like where soft tissue is in poor condition. Individual therapy and early rehabilitation are effective for homolateral FHI and FKI.

“Floating Hip” and “Floating Knee” Associated with Hip Dislocation, Sciatic Nerve Palsy, and Patella Fracture [RETRACTED]

“…Although similar cases of SIFHFK injuries have been described previously by Benabbouha et al 3 and Li et al, 4 our case was peculiar because of the associated neck and the shaft of femur fracture, patella fracture with fracture acetabulum, and hip dislocation. SIFHFK injuries are typically the result of high-velocity trauma and should be approached in a multidisciplinary, stepwise manner for optimal surgical stabilization.…”

“…Although similar cases of SIFHFK injuries have been described previously by Benabbouha et al 3 and Li et al, 4 E-mail address for M.K. Saini: sainimk.saini8@gmail.com…”

“…In this case, we chose SIF because the femur head fragment was free floating and we could achieve good static compression at neck fracture while planned for controlled dynamic compression at shaft fracture. In our case, the patient had excellent hip function with Harris hip score being 93 at 2 years follow-up, whereas other authors also reported fair to good clinical results in previous reports and reviews 3,4,11 .…”

“…SIFHFK injuries have been rarely reported in the literature, and only 2 cases of SIFHFK injuries with hip dislocation have been previously reported 3,4 . We hereby report on a unique case of SIFHFK with hip dislocation and patella fracture-associated sciatic nerve injury.…”