Acetabular fracture types vary with different acetabular version.

Purpose: Acetabular fractures typically occur in high energy trauma. Understanding of the various contributing biomechanical factors and trauma mechanisms is still limited. While several investigations figured out what role femoral position during impact plays in distinct fracture patterns, no data exists on the influence of acetabular version on the fracture type.

Does sleep deprivation impair orthopaedic surgeons' cognitive and psychomotor performance?

Background: Sleep deprivation may slow reaction time, cloud judgment, and impair the ability to think. Our purpose was to study the cognitive and psychomotor performances of orthopaedic trauma surgeons on the basis of the amount of sleep that they obtained.

Methods: We prospectively studied the performances of thirty-two orthopaedic trauma surgeons (residents, fellows, and attending surgeons) over two four-week periods at an urban academic trauma center.

Combined pelvic ring disruption and acetabular fracture: associated injury patterns in 40 patients.

Objectives: Combined pelvic ring disruptions and acetabular fractures are thought to be uncommon. Our objectives were to characterize concomitant injury patterns and to compare them with historically observed rates for each injury in isolation.

Design: Retrospective review comparing a study group with historical controls.

Normal values of Wiberg's lateral center-edge angle and Lequesne's acetabular index--a coxometric update.

Background: The historical pathological cut-off values for Wiberg's lateral center-edge (LCE) angle and Lequesne's acetabular index (AI) are below 20° and above 12° for the LCE and AI, respectively. The aim of this study was to reassess these two angles more than 50 years after their introduction using a standardized conventional radiological measurement method, considering changing social habits and their associated physiological changes.

Methods: A total of 1,226 anteroposterior radiographs of the pelvis (2,452 hips) were obtained according to a strict standardized radiographic technique allowing reliable measurements of the LCE angle and the AI.

A biomechanical comparison of a locking plate, a nail, and a 95° angled blade plate for fixation of subtrochanteric femoral fractures.

Objective: To compare the biomechanical performance of a cephalomedullary nail (CMN), a proximal femoral locking plate, and a 95° angled blade plate in a comminuted subtrochanteric fracture model.

Methods: A comminuted subtrochanteric femoral fracture model was created with a 2-cm gap below the lesser trochanter in 15 pairs of human cadaveric femora confirmed to be nonosteoporotic. The femora were randomized to treatment with one of the previously mentioned 3 devices.