Currently there is no standard quantitative methodology for the description of Hill-Sachs defects (HSD), the size of which is important in planning surgical treatment for patients with anterior shoulder instability. The main purpose was to develop a simple imaging measurement to improve communication regarding HSDs. The secondary goal was to determine, using this new measurement, whether there was a significant difference in the size of HSDs in patients who underwent a Weber osteotomy (more invasive surgical intervention for those failing Bankart repair) compared with patients who underwent clinically successful arthroscopic Bankart repairs (the first surgical intervention for anterior shoulder instability). HSD volume was calculated with newly developed methodology using computed tomography in ten patients who required eleven Weber osteotomies and using magnetic resonance imaging in twenty-two patients who had clinically successful arthroscopic Bankart repairs. Within the Weber cohort, regression analysis was performed to determine correlation between HSD volume and each of height, maximum depth, and width. Student's t-test analysis was used to compare HSD volume between the Weber and Bankart cohorts. In the Weber cohort, there is a statistically significant correlation between the HSD Volume Ratio and the HSD Maximum Depth Ratio (R2=0.83). The t-test comparison of mean HSD Volumes showed statistically significant (p<0.0015) larger HSD's in the Weber cohort than the Bankart cohort. HSD depth is a radiological indicator for HSD volume. This simple measurement may facilitate orthopaedic pre-operative planning for patients with severe recurrent anterior shoulder instability. In this preliminary study, patients who had Weber osteotomies after failed Bankart repairs had statistically significantly larger HSDs than patients with clinically successful Bankart repairs.
Arthrogryposis Multiplex Congenita is a rare congenital disorder associated with multiple musculoskeletal contractures which causes substantial morbidity. Knee involvement is commonly seen among children with arthrogryposis, with flexion contracture being the most frequent. The purpose of this study was to assess the effectiveness of orthopaedic procedures, namely distal femoral supracondylar extension osteotomy and/or Ilizarov external fixator, on the ambulation status of children with knee flexion contracture and whether any functional gains are maintained at the latest follow-up. Fifteen patients were identified and their medical records reviewed. The mean age at their first surgery was 7.6 years (range, 2-16 years). The etiology for all patients was amyoplasia. The mean length of follow-up was 58 months (range, 12-117 months). Contractures were treated with femoral extension osteotomy (n=8), Ilizarov external fixator (n=2), or both (n=5).Background
Methods
The purpose of this clinical series is to prospectively review the mid-term clinical and radiographic outcomes of the Scandinavian Total Ankle Replacement (STAR) performed at two academic Canadian University centres. Between 1998 and 2005, 111 STAR were implanted into 98 patients at two Canadian centres. Prospective clinical and radiographic follow-up was performed. Validated and non-validated outcome questionnaires consisting of the AAOS foot and ankle questionnaire, AOFAS Hindfoot score, Foot Function Index (FFI), Ankle Osteoarthritis Scale (AOS) were completed. Sixty four patients were followed with these scores prospectively and 50 retrospectively. Both groups had prospective radiographic follow-up using measures described by Hintermann Aim
Methods
To examine measurement properties of four disability outcomes in patients with advanced osteoarthritis of the glenohumeral joint. This was a prospective longitudinal study of patients with advanced osteoarthritis of the glenohumeral joint who underwent a Total Shoulder Arthroplasty (TSA) and were followed for 6 months. Four measures [Western Ontario Osteoarthritis Shoulder (WOOS) Index, the American Shoulder and Elbow Surgeons (ASES) assessment, Constant-Murley score (CMS), and Quick Disabilities of the Arm, Shoulder, and Hand (QuickDASH)] were completed 2-3 weeks before surgery and at 6 months after surgery.Purpose
Methods
The purpose of this study was to investigate the difference in the level of pre- and 6 months post-operative objective and subjective measures of disability between patients with full-thickness rotator cuff tears and those with impingement syndrome/low grade partial thickness rotator cuff tears. Impact of age, gender, and job demands was taken into consideration. Standardised pre- and post-operative data were collected on consecutive patients who had undergone surgery related to rotator cuff pathology. A disease-specific disability measure, the Western Ontario Rotator Cuff (WORC) Index which explores five domains of physical symptoms – life style, work, sports, and emotions – was the primary outcome. Paired and independent non-parametric statistics and multivariable regression analysis were performed.Purpose
Methods
