Medicine and Health Sciences Commons^™

Current Issues In Treatment Of Anterior Shoulder Instability: A Review, Ian Power

UNM Orthopaedic Research Journal

Anterior shoulder instability can be problematic in the young, active population, particularly in athletes and military personnel. The shoulder joint is the most frequently dislocated joint, and there is a high rate of dislocation recurrence in younger patients. The stability of the glenohumeral joint is conferred through the bony anatomy and the static and dynamic stabilizers. Recognizing pathological features, identifying glenoid bone loss, and detecting Bankart and Hill-Sachs lesions are key to formulating an appropriate treatment strategy and improving surgical outcomes. Furthermore, the concept of critical bone loss has been refined by looking at subcritical loss. Recent evidence has shown …

Total Ankle Replacement, Then And Now: A Review, Katherine J. Gavin

UNM Orthopaedic Research Journal

Total ankle replacement (TAR) for treating end-stage osteoarthritis of the ankle joint has been evolving since the early 1960s. Increased understanding of the biomechanics and kinematics of the foot and ankle, postoperative results of implant use, and advances in technology have led to improved implant designs and treatment outcomes. The current study reviews associated historical perspectives, kinematics, biomechanics, patient selection, imaging procedures, modern surgical techniques, postoperative complications, and comparison studies with arthrodesis to help evaluate TAR in successfully treating osteoarthritis of the ankle joint. Although arthrodesis remains the gold standard for treatment, findings of new studies have suggested that TAR …

Ruptures Of The Quadriceps And Patellar Tendons Of The Extensor Mechanism: A Review, Judd R. Fitzgerald

UNM Orthopaedic Research Journal

Damage to the quadriceps and patellar tendons of the extensor mechanism can be devastating and often life-changing injuries that require prompt diagnosis and treatment. A sound understanding of anatomy, biomechanics, and degenerative changes of both tendons and the extensor mechanism of the knee can help guide surgical repair and postoperative rehabilitation of patients. Immediate primary repair has often resulted in improved postoperative results compared with delayed reconstruction, and the avoidance of gap formation by use of careful techniques and augmentation has been critical for successful treatment. Additionally, patients with extensor mechanism injuries frequently have medical comorbidities or notable tendon degeneration; …

Investigating Potential Role Of Surgeons In Sternal Wire Failure By Biomechanical Tests, Christina Salas, Rachel N. Tufaro, C Etta Tabe, Kwasi Addae-Mensah, W Daniel Tanberg, Christopher Buksa, Jessica A. Avila, Jorge A. Wernly

UNM Orthopaedic Research Journal

Background: Stainless steel wires are commonly used to close the sternum after cardiac-related operative procedures. However, complications have been reported associated with fracture of wires and subsequent migration into the chest cavity. The objective of this study was to biomechanically evaluate the role of surgeons in contributing to wire failure. We hypothesized that surgeons may impose damage to the sternal wire, which may be exacerbated by postoperative wire degradation and patient movement.

Methods: A biomimetic sternal model and custom test fixture simulated a median sternotomy. The sternum was closed by a fellowship-trained cardiothoracic surgeon using figure-of-eight and simple closure techniques. …