Shoulder Calcification
Shoulder Calcification - Related Videos
10:10
Reverse Total Shoulder Arthroplasty
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Cited by 5 •
2011
Reverse total shoulder arthroplasty is indicated for the treatment of conditions that cannot be treated with conventional arthroplasty or other procedures. These primarily include degenerative and incapacitating conditions with irreparable rotator cuff and loss of the normal biomechanical coupling of the shoulder.
08:43
Calcification of Vascular Smooth Muscle Cells and Imaging of Aortic Calcification and Inflammation
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Cited by 28 •
2016
Vascular calcification is an important predictor of and contributor to human cardiovascular disease. This protocol describes methods for inducing calcification of cultured primary vascular smooth muscle cells and for quantifying calcification and macrophage burden in animal aortas using near-infrared fluorescence imaging.
08:57
Shoulder Exam I
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2023
Source: Robert E. Sallis, MD. Kaiser Permanente, Fontana, California, USA Examination of the shoulder can be complex, because it actually consists of four separate joints: are the glenohumeral (GH) joint, the acromioclavicular (AC) joint, the sternoclavicular joint, and the scapulothoracic joint. The GH joint is primarily responsible for shoulder motion and is the most mobile joint in the body. It has been likened to a golf ball sitting on a tee and is prone to instability. It is held in place...
08:30
Intra-articular Shoulder Injection for Reduction Following Shoulder Dislocation
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2023
Source: Rachel Liu, BAO, MBBCh, Emergency Medicine, Yale School of Medicine, New Haven, Connecticut, USA The anterior shoulder dislocation is one of the most common joint dislocations seen in emergency settings. In anterior shoulder dislocation, the humeral head is displaced out of the glenohumeral joint in front of the scapular glenoid, resulting in a loss of the articulation between the arm and the rest of the shoulder. This can be caused by a fall onto an abducted, extended, and externally...
01:23
Muscles of the Shoulder
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2024
The muscles surrounding the shoulder girdle, including the clavicle and scapula, primarily stabilize the scapula. This stable base allows other muscles to move the humerus effectively. Scapular movements often mirror those of the humerus and extend its range of motion. For instance, raising the arm above the head would not be feasible without simultaneous upward rotation of the scapula. Anterior Thoracic Muscles The anterior thoracic muscles include the serratus anterior, subclavius, and...
FAQs
Deposits may pass through formative, resting, and resorptive phases. During formation, calcium can accumulate or enlarge with relatively variable symptoms. The resorptive phase is more likely to produce acute pain because surrounding tissue mounts an inflammatory response as the deposit changes. Recognizing this progression helps clinicians relate symptom intensity to disease stage rather than assuming that deposit size alone determines severity.
Pain may arise from two interacting effects: inflammation around a deposit and mechanical irritation as the shoulder moves. Because deposits commonly affect rotator cuff tendons, motion can compress or tension already irritated tissue, contributing to restricted movement. This combination explains why symptoms may include both an acute inflammatory pattern and difficulty with ordinary shoulder mobility.
The diagnosis depends on linking the clinical examination with imaging rather than relying on pain alone. Radiographs or ultrasound can demonstrate a calcium deposit and help distinguish calcific tendinopathy from other sources of shoulder pain. This distinction matters because similar symptoms may require different explanations, and identifying the deposit supports a more targeted management plan.
Hydroxyapatite is the calcium crystal most often found in these deposits. Its accumulation within a rotator cuff tendon creates a localized abnormality that may enlarge and later enter a resorptive phase. At that stage, the surrounding tissue responds with inflammation, linking the crystal deposit to acute symptoms and helping explain why clinical severity can change over time.
Evaluation begins with a physical examination of the painful shoulder and its movement. Imaging then provides structural information, with radiography or ultrasound used to identify deposits and support differentiation from other causes of shoulder pain. Combining these findings allows clinicians to determine whether the symptoms fit calcific tendinopathy and to choose management appropriate to the clinical situation.
Initial management may include activity modification, analgesia, and physical therapy to reduce irritation and support movement. If symptoms persist, clinicians may consider ultrasound-guided needling or shock-wave treatment. Cases that remain resistant can require surgery. The available options reflect an escalation from conservative care toward procedures intended for persistent symptomatic deposits.