Background and Objective: One of the most common musculoskeletal injuries in modern societies is neck and shoulder pains which often lead to postural disorders and soft tissue shortenings. This study was done to compare the length of shoulder girdle’s muscles in healthy subjects and patients with shoulder and neck pain.

Methods: This case-control study was done on16 patients with chronic neck- shoulder pain as cases and 15 healthy subjects as control group. Length of upper trapezius, pectoralis major and minor muscles was evaluated with functional tests. Also, the range of shoulder abduction and external rotation and cervical flexion and lateral flexion were measured by goniometer.

Results: Significant differences between patient and control groups were found in pectoralis major and minor muscles length in involved side (P<0.05) and also in neck active range of lateral flexion (P<0.05). Furthermore, there were significant differences between shoulder active range of abduction and external rotation (P<0.05) in the groups.

Conclusion: This study confirmed a significant reduction in range of motion in the neck and shoulder and also a remarkably shortening in the muscles of in the involved side.

Posterior shoulder fracture dislocation (PSFD) is a rare and challenging injury. Early diagnosis and treatment can prevent serious complications and disability, reducing the risk of avascular necrosis of the humeral head and joint destruction. Several treatment options have been proposed, depending on the patient’s age, duration of dislocation, humeral head bone defect, length of the metaphysis attached to the reverse Hill-Sachs, osteopenia and functional demand, and concomitant diseases. Open anatomic reduction and internal fixation is a suitable option, particularly in young and active individuals. Humeral joint replacement is recommended for non-fixable 3- or 4-part fractures, particularly in elderly individuals with low demand and osteoporosis. This article reports a case of closed, irreducible PSFD that was treated with open reduction and internal fixation using a plate and deltopectoral approach.