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The majority of acromioclavicular ioint injuries resuit from direct trauma to the shoulder. The magnitude of applied force determines the degree of injury. This article presents a modified Weaver-Dunn procedure consisting of lateral clavicle resection and reduction, coracoclavicular fixation with suture or surgical tape, and coracoacromial ligament transfer for the treatment of these injuries.

The acromioclavicular joint is comprised of the articulation between the distal end of the clavicle and the acromion. It functions to anchor the clavicle to the scapula and to the shoulder girdle. The subcutaneous location of this joint makes it vulnerable to injury. It comprises approximately 9% of all injuries to the shoulder girdle. The majority of these injuries occur in males with a male to female ratio of approximately 5:1, and the most common age group affected are those in their 20s. Injuries to the acromioclavicular joint are prevalent in football, rugby, and other contact sports. Given the high incidence of acromioclavicular injuries, it is common for orthopedists, emergency physicians, and physical therapists to recognize and initiate treatment for the full spectrum of this type of injury. The current literature outlines joint biomechanics, various methods of fixation, and outcomes of both nonoperative and operative therapy. This article reviews the anatomy, biomechanics, classification of injury, fixation techniques, and outcomes.

The acromioclavicular joint is comprised of the articulation between the distal end of the clavicle and the acromion. It functions to anchor the clavicle to the scapula and to the shoulder girdle. The subcutaneous location of this joint makes it vulnerable to injury. It comprises approximately 9% of all injuries to the shoulder girdle. The majority of these injuries occur in males with a male to female ratio of approximately 5:1, and the most common age group affected are those in their 20s. Injuries to the acromioclavicular joint are prevalent in football, rugby, and other contact sports. Given the high incidence of acromioclavicular injuries, it is common for orthopedists, emergency physicians, and physical therapists to recognize and initiate treatment for the full spectrum of this type of injury. The current literature outlines joint biomechanics, various methods of fixation, and outcomes of both nonoperative and operative therapy. This article reviews the anatomy, biomechanics, classification of injury, fixation techniques, and outcomes. Language: en

Anterior cruciate ligament injuries in the pediatric and adolescent population are becoming more common with the trends of increased participation in competitive athletics in younger children. The natural history of this injury is similar to that of the adult and results in frequent reinjury, instability, and debilitation. Delayed reconstruction has proven to be a clinically effective treatment method but requires a prolonged restriction of competitive athletics. Reconstruction in the acute and subacute period has been shown by many authors to be a successful, reproducible treatment regimen. Nonetheless, the unique pitfalls of ACL reconstruction in a skeletally immature patient must not be overlooked. A thorough preoperative evaluation for leg-length discrepancy or subtle angular deformity is essential to identify the presence of an entity that might otherwise be attributed to surgical complication. For the patient nearing skeletal maturity with little growth remaining, we recommend the standard tunnel positioning and the use of soft-tissue graft. For younger patients who have significant growth remaining, alternative physeal "safe" procedures should be considered. No prospective, randomized studies compare the clinical success of graft type, graft placement, or graft fixation in this age group. Further follow-up of existing study groups and prospective research is warranted to fine-tune the result-based decision making for treatment of this injury.