Redefining superior escape of the humeral head: A radiographic and magnetic resonance imaging study.

Background: The underlying shoulder pathology in radiographic superior escape of the humeral head and association between acromiohumeral interval (AHI) on radiographs and magnetic resonance imaging (MRI) are poorly understood.

Methods: A retrospective review of shoulder radiographs and MRI scans was undertaken. AHI was measured using both modalities.

Burnout in New Zealand resident doctors: a cross-sectional study of prevalence and risk factors.

Objective: Burnout syndrome, characterised by emotional exhaustion, depersonalisation and decreased personal accomplishment, is well documented in the medical workforce. This study aimed to investigate the prevalence of burnout in New Zealand resident doctors (doctors who have yet to complete their specialty training).

Design: Cross-sectional survey study of resident doctors in New Zealand.

Advanced Surgical Training Models for Wrist Surgery.

Globally, surgical exposure for the trainee has become challenging due to changes in shift patterns, increasing medicolegal issues and the recognition of burnout. Simulation models are a crucial adjunct for the development of arthroscopic skills and open procedures. Advanced anatomically precise 3D-printed wrist models are used in our workshops.

The Natural History of Non-operatively Treated Traumatic Triangular Fibrocartilage Complex Tears: A Systematic Review.

 Operative treatment of triangular fibrocartilage complex (TFCC) tears has been well researched; however, data regarding nonoperative management is mixed and scarce. Our review aimed to utilize available data to formulate conclusions regarding treatment algorithms for this heterogeneous injury group.  A thorough literature review was performed in Medline (OVID), Embase, Cochrane Library, and PubMed databases with search terms including "triangular fibrocartilage complex" and variations on the full term including "triangular fibrocartilage" or "TFCC," alongside "non-operative" and "conservative.

The Volar Cortical Hinge: An Independent Risk Factor for Distal Radius Fracture Displacement.

 Displaced distal radius fractures are prone to redisplacement after manipulation. This can result in the need for delayed surgery. Several criteria have been studied to predict the likelihood of redisplacement.

Classification system for partial distal biceps tendon tears: a descriptive 3-Tesla magnetic resonance imaging study of tear morphology.

Background: There is minimal literature on the morphology of partial distal biceps tendon (DBT) tears. We sought to investigate tear morphology by retrospectively reviewing 3-Tesla magnetic resonance imaging (3T MRI) scans of elbows with partial DBT tears and to propose a basic classification system.

Methods: 3T MRI scans of elbows with partial DBT tears were retrospectively reviewed by two experienced observers.

Pyrocarbon radial head arthroplasty offers satisfactory clinical and radiological outcomes with low revision rate: A systematic review.

Introduction: Pyrocarbon promises to be an optimal material choice for radial head arthroplasty (RHA) due to an elastic modulus comparable to the radial diaphysis and thus providing higher biocompatibility. Primary objective was to determine the complications and revision rates related to the usage of these prostheses. The secondary objective was to assess the clinical and radiological outcomes of Pyrocarbon RHAs.

Volar Lunate Facet Fractures of the Distal Radius: Fracture Mapping Using 3D CT Scans.

 Fractures of the distal radius involving the lunate facet at the volar articular surface are unstable injuries and are usually managed operatively. Management of these fractures is challenging as our understanding of the exact fracture characteristics and associated injuries to the carpus is poor.  This study aims to define the anatomy and associated injuries of lunate facet fractures using three-dimensional computed tomography (CT) scans and fracture mapping techniques.

An assessment of burnout in New Zealand orthopaedic resident medical officers.

Aims: Burnout and fatigue are common in the medical profession. The primary aim was to assess rates of burnout in trainee and non-trainee orthopaedic registrars in New Zealand. A secondary aim was to establish which specific factors are associated with burnout.

Preiser's Disease-Current Concepts of Etiology and Management.

The term Preiser's disease typically is used to describe idiopathic avascular necrosis of the scaphoid, but there have been a number of putative etiologies considered. It is rare and the natural history is not fully understood. Management of the condition should be based on patient factors as well as the stage of disease with regard to the scaphoid and the surrounding wrist.

The Pathoanatomy and Biomechanics of Kienböck Disease.

Kienböck disease (KD) involves osseous, vascular, and chondral aspects of the lunate and wrist. We present our theories on the etiology and pathogenesis of the condition based on basic science models, seminal literature, personal case experience, and kinematic observations of the Kienböck wrist. Three phenotypes of Kienböck disease occur, and each tends to have different morphology, rates of progression, and disease pattern.

Fatty infiltration in the intact supraspinatus tendon; a normal physiological response with increasing age and female gender.

Background: Fatty infiltration and muscle atrophy of supraspinatus are used as markers of chronicity in rotator cuff tears and are known to both be independently related to poorer outcomes following surgical repair. We hypothesized that supraspinatus muscle atrophy and fatty infiltration increases with age irrespective of whether the rotator cuff is intact and therefore cannot be used as accurate markers for chronicity.

Method: Retrospective review of 280 patients who underwent 3.

Preoperative topical benzoyl peroxide treatment is effective in reducing Cutibacterium acnes in shoulder surgery: a systematic review.

Background: Cutibacterium acnes (C acnes) colonization can have a significant impact on patients undergoing both arthroscopic and open shoulder surgery with regard to postoperative infection. Its resistance to standard preoperative skin preparations and prophylactic antibiotics has led to a need for a more targeted therapy. Topical benzoyl peroxide (BPO) has been used by dermatologists in the treatment for acnes due to its bactericidal and penetrative effects through the dermal layer.

Management of osteochondritis dissecans (OCD) of the elbow trochlea in the adolescent population: A systematic review.

Background: Elbow trochlea osteochondritis dissecans (OCD) is rare with limited information on it. The aim of this systematic review is to assess the published evidence on trochlea OCD in terms of presenting symptoms, location of OCD and outcome of management in adolescent patients.

Patient & Methods: A review of the online databases MEDLINE and Embase was conducted according to PRISMA guidelines.

Anatomical and Clinical Concepts in Distal Radius Volar Ulnar Corner fractures.

 Volar ulnar corner fractures are a subset of distal radius fractures that can have disastrous complications if not appreciated, recognized, and appropriately managed. The volar ulnar corner of the distal radius is the "critical corner" between the radial calcar, distal ulna, and carpus and is responsible for maintaining stability while transferring force from the carpus.  Force transmitted from the carpus to the radial diaphysis is via the radial calcar.

Precision Medicine for Kienböck Disease in the 21st Century.

One of the most popular treatment algorithms for Kienböck disease is based on a progression of successive radiographic changes that was developed in the 1970s. Since then, 2 other important classifications systems have been introduced. One is centered on contrasted magnetic resonance imaging findings and the other, articular cartilage degeneration.

Risk factors for intra-articular involvement in proximal humeral fractures.

Introduction: Identification of intra-articular involvement in proximal humeral fractures is important for operative decision making. The aim of this study was to identify the risk factors associated with intra-articular involvement in proximal humeral fractures.

Materials And Methods: One hundred consecutive three-dimensional computed tomography reconstructions of proximal humeral fractures were identified.

Kinematics of the wrist in Kienböck's disease: a four-dimensional computed tomography study.

We studied the kinematics of 20 wrists affected by Kienböck's disease using four-dimensional computed tomography (4-D-CT) scanning. Degenerative changes progressed from the lunate facet to the scaphoid fossa at the radiocarpal articulation, then involved the midcarpal joint. Lunate fracture types included coronal (14/20), sagittal (10/20) and ligament attachment-types (8/20).