Risk Factors for Intraoperative Periprosthetic Femoral Fractures in Patients with Hip Dysplasia Undergoing Total Hip Arthroplasty with Uncemented Prostheses.

Objectives: To determine the potential risk factors for intraoperative periprosthetic femoral fractures in patients with developmental dysplasia of the hip (DDH) undergoing total hip arthroplasty (THA).

Methods: This was a retrospective study. Patients who were diagnosed with DDH and undergoing THA (by artificial joint replacement) at our hospital from January 1999 to December 2019 were included in this study.

Biomechanical comparison of three kinds of fixation in fracture-dislocation of the sacroiliac joint.

Background: Although there are several different kinds of fixation techniques for the sacroiliac fracture-dislocation, the treatment remains a challenge for orthopedic surgeons.

Objective: The purpose of this study was to compare the stability of sacroiliac fracture-dislocation fixed with two iliosacral (IS) screws, tension band plate (TBP), and minimally invasive adjustable plate (MIAP).

Methods: Five human cadavers (L4-pelvic-femora) were used to compare biomechanical stability.