Clinical Correlation of the Orthopaedic Trauma Association Open Fracture Classification With Wound Closure and Soft-Tissue Complications in Open Upper Extremity Fractures.

Objectives: To correlate domains of the Orthopaedic Trauma Association Open Fracture Classification (OTA-OFC) in open upper extremity injuries with type of definitive soft-tissue closure, complication rates, and unanticipated return to the operating room for complication.

Design: Retrospective review of prospectively collected data.

Setting: Level I trauma center.

Early Ambulation After Hip Fracture Surgery Is Associated With Decreased 30-Day Mortality.

Introduction: Hip fractures frequently present in complicated patients and are fraught with high morbidity and mortality rates. Postoperatively, delayed ambulation has been identified as a factor associated with increased mortality, although its magnitude has yet to be quantified. Therefore, this article aims to evaluate mortality after hip fracture surgery because it relates to early postoperative ambulation, taking into account preexisting comorbidity burden.

Bone marrow aspirate concentrate with cancellous allograft versus iliac crest bone graft in the treatment of long bone nonunions.

Objectives: The purpose of this study was to compare bone marrow aspirate concentrate (BMAC) with cancellous allograft to iliac crest bone graft (ICBG) in the treatment of long bone nonunions.

Design: Retrospective cohort study.

Setting: A single level I trauma center.

Do Changes in Pelvic Rotation and Tilt Affect Measurement of the Anterior Center Edge Angle on False Profile Radiographs? A Cadaveric Study.

Background: The false profile radiograph assesses acetabular coverage in prearthritic hip conditions. Precise rotation of this radiograph is difficult to obtain, so the clinician must interpret radiographs with nonstandard pelvic rotation or tilt, despite limited evidence of how this may affect the anterior center edge angle measurement.

Questions/purposes: (1) Does pelvic rotation alter the measurement of the anterior center edge angle on false profile views? (2) Does pelvic tilt alter the measurement of the anterior center edge angle on false profile views? (3) Is there an objective way to assess appropriate pelvic rotation for the false profile view?

Methods: Eight cadaver hips (four female, four male; one hip randomly selected per pelvis) were included in the study.

A Novel Indirect Reduction Technique in Ankle Syndesmotic Injuries: A Cadaveric Study.

Objective: To describe a novel technique using preoperative computed tomography (CT) to plan clamp tine placement along the trans-syndesmotic axis (TSA). We hypothesized that preoperative CT imaging provides a reliable template on which to plan optimal clamp tine positioning along the TSA, reducing malreduction rates compared with other described techniques.

Methods: CT images of 48 cadaveric through-knee specimens were obtained, and the TSA was measured as well as the optimal position of the medial clamp tine.

Medial Clamp Tine Positioning Affects Ankle Syndesmosis Malreduction.

Objectives: To determine whether the position of the medial clamp tine during syndesmotic reduction affected reduction accuracy.

Design: Prospective cohort.

Setting: Urban Level 1 trauma center.

Simulating clamp placement across the trans-syndesmotic angle of the ankle to minimize malreduction: A radiological study.

Background: Ankle fractures associated with syndesmotic injury have a poorer prognosis than those without such an injury. Anatomic reduction of the distal tibiofibular joint restores joint congruency and minimizes contact pressures, yet operative fixation of syndesmotic ankle injuries is frequently complicated by malreduction of the syndesmosis. Current methods of assessing reduction have been shown to be inadequate.

Differential fracture healing resulting from fixation stiffness variability: a mouse model.

Background: The mechanisms underlying the interaction between the local mechanical environment and fracture healing are not known. We developed a mouse femoral fracture model with implants of different stiffness, and hypothesized that differential fracture healing would result.

Methods: Femoral shaft fractures were created in 70 mice, and were treated with an intramedullary nail made of either tungsten (Young's modulus = 410 GPa) or aluminium (Young's modulus = 70 GPa).