Symptomatic scapular winging resulting in scapular dyskinesia leads to a wide spectrum of clinical complaints, most notably periscapular pain. The malpositioning of the scapula, termed through use of the acronym SICK (scapular malposition, inferior-medial border prominence, coracoid pain and malposition, and dyskinesia of scapular movement), is due to the irregular activity of one or more of th...

The supraspinatus, having distinct anterior and posterior subregions, is most commonly considered an abductor of the humerus, but it has also been shown to induce humeral rotation. The objective of this study was to quantify the magnitude and direction of humeral rotation that results from loading the distinct anterior and posterior subregions of the supraspinatus. Fourteen cadaver specimens we...

Scapular spine fractures are rare injuries. The aim of this study was to evaluate a late-diagnosed scapular spine pseudo-arthrotic patient. Because of the surrounding soft tissue mass and overlapping of the scapula with the thoracal bones on a roentgenogram, diagnosis may be missed or delayed for years. We present a case of scapular spine pseudo-arthrosis in a 50-year-old man, who sustained a t...

OBJECTIVE Post-stroke shoulder pain is a common phenomenon in hemiplegia and impedes rehabilitation. The aim of this study was to identify a possible relationship between post-stroke shoulder pain, scapula resting position and shoulder motion. METHODS Shoulder kinematics of 27 patients after stroke (17 men) were compared with 10 healthy age-matched control subjects. Using an electromagnetic t...

BACKGROUND Accurate analysis of osseous glenoid morphology is important in treating glenohumeral arthritis and instability. Two-dimensional computed tomography scans are used to evaluate glenoid alignment. Accuracy of this method is dependent on the angle of axial reconstruction in relation to the position of the scapula. The purpose of this study was to investigate the effect of scapular rotat...

BACKGROUND The success of Total Shoulder Arthroplasty (TSA) is believed to depend on the restoration of the natural anatomy of the joint and a key development has been the introduction of modular humeral components to more accurately restore the patient's anatomy. However, there are no peer-reviewed studies that have reported the degree of glenoid component mal-position achieved in clinical pra...

Water polo is an intense sport with extreme physical contact and repetitive shoulder motion that predisposes to injury. The continuous scapular motion and recruitment of the scapular stabilizers to maintain buoyancy expose water polo athletes to the risk of scapular stress fracture. Suspicion should arise when evaluating water polo athletes presenting with shoulder pain.

BACKGROUND Scapular dyskinesis, or abnormal dynamic scapular control, is a condition that is commonly associated with shoulder pathology but is also present in asymptomatic individuals. Literature varies on whether it represents a cause or symptom of shoulder pathology, but it is believed to be a risk factor for further injury. Clinical identification focuses on visual observation and examinati...

Bones of the postcranial skeleton of higher vertebrates originate from either somitic mesoderm or somatopleural layer of the lateral plate mesoderm. Controversy surrounds the origin of the scapula, a major component of the shoulder girdle, with both somitic and lateral plate origins being proposed. Abnormal scapular development has been described in the naturally occurring undulated series of m...

Scapular winging, one of the more common scapulothoracic disorders, is caused by a number of pathologic conditions. It can be classified as primary, secondary, or voluntary. Primary scapular winging may be due to neurologic injury, pathologic changes in the bone, or periscapular soft-tissue abnormalities. Secondary scapular winging occurs as a result of glenohumeral and subacromial conditions a...