Subscapularis muscle. The subscapularis is a large triangular muscle which fills the subscapular fossa and inserts into the lesser tubercle of the humerus and the front of the capsule of the shoulder-joint. Structure[edit] It arises from its medial two-thirds and from the lower two-thirds of the groove on the axillary border (subscapular fossa) of the scapula.
Some fibers arise from tendinous laminae which intersect the muscle and are attached to ridges on the bone; others from an aponeurosis, which separates the muscle from the teres major and the long head of the triceps brachii. The fibers pass laterally and coalesce into a tendon which inserts into the lesser tubercle of the humerus and the anterior part of the shoulder-joint capsule. Relations[edit] Innervation[edit] Innervation to subscapularis is supplied by the upper and lower subscapular nerves, branches of the posterior cord of the brachial plexus. Function[edit] Clinical significance[edit] Examination[edit] Imaging[edit] MRI. Ultrasonography[edit] Supraspinatus muscle. Structure[edit] The supraspinatus muscle arises from the supraspinous fossa, a shallow depression in the body of the scapular above its spine.
The supraspinatus muscle tendon passes laterally beneath the cover of the acromion. Research in 1996 showed that the postero-lateral origin was more lateral than classically described.[1][2] The supraspinatus tendon is inserted into the superior facel of the greater tubercle of the humerus. The distal attachments of the three rotator cuff muscles that insert into the greater tubercle of the humerus can be abbreviated as SIT when viewed from superior to inferior (supraspinatus, infraspinatus, and teres minor).
The acronym SITS regarding the rotator cuff muscles is completed by including the subscapularis muscle, which unlike the other rotator cuff muscles attaches to the lesser tubercle of the humerus.[3] Innervation[edit] Function[edit] Controversy about Action[edit] Additional images[edit] Position of the supraspinatus muscle (shown in red). Playing with a torn biceps tendon. If you are a fan of baseball, you know that we are well into the playoffs. My Dad asked me a question the other day that I thought would make a good blog post.
His question was how could Edgar Renteria, a shortstop for the San Francisco Giants, continue to play with a torn biceps tendon? This is a good question, and from media reports, it seems Renteria tore the tendon in his left biceps brachii while swinging at a pitch against the Braves last week. The biceps brachii is the large (well, large in some people) muscle located on the anterior (front) part of the upper arm. There are actually two parts to the biceps brachii, as biceps means two heads. In the picture to the left, the number 5 is pointing to the tendon that attaches the long head of the biceps brachii to the upper part of the scapula (shoulder), and the number 9 is pointing to the short head of the biceps brachii, which attaches to the lower part of the scapula. Rotator cuff tears: cables and crescents? | The Sports Physio.
So a tear of the rotator cuff is pretty disastrous, right? It means surgery, right? Well NO it doesn't! As our understanding and knowledge of the shoulder joint improves so does our ability to recognise those cuff tears that are going to do ok without the need for surgery, let me explain more. It has been well known in the medical world for quite sometime that there are a lot of people out there with tears in their rotator cuff tendons functioning normally with no pain and not even aware of them, for example Templhof et al back in 1999 published a study that looked at the shoulders of people with no pains or reported problems, and 23% of them had cuff tears!
Thats nearly 1 in 4 of us could have a cuff tear! So why is this? Why are there so many people out there with tears in the rotator cuff functioning normally, and what can we learn from those that have do have tears with no pain or loss of function to help this that do! So how do we know if the tear is in the crescent or the cable?
Shoulder MR - Anatomy. Causes of shoulder pain: Ream and Run Technique. Be sure to see the the ream and run essentials and this Video. of the shoulder function of some of the patients having had a ream and run. As we discussed in another post today, failure of the polyethylene glenoid component is the most common complication of total shoulder arthroplasty. Concern about glenoid component failure leads surgeons to place long-term activity restrictions on their patients. In an effort to meet the demands of individuals wishing for high levels of physical activity after shoulder arthroplasty without concern about glenoid component failure we have explored the application of non-prosthetic glenoid arthroplasty with humeral hemiarthroplasty – the ream and run procedure.
This procedure is technically exacting and requires the vigorous and full participation of the patient during what can be a lengthy rehabilitation process. We have summarized some of the ream and run essentials here. (1) Surgical Approach-After administration of prophylactic antibiotics. Subscapularis. Anteriorly Subscapularis (dark Red), Scapula (White Line) has been pulled away from the chest wall. International Journal of Morphology - Anatomy of the Thoracic Wall, Axilla and Breast. Int. J. Morphol., 24(4):691-704, 2006.
Anatomy of the Thoracic Wall, Axilla and Breast Anatomía de la Pared Torácica, Axila y Mama *José Rafael Macéa & **José Humberto Tavares Guerreiro Fregnani * Adjunct Professor and Head of the Department of Morphology of the School of Medical Sciences of Santa Casa de São Paulo, Brasil. ** Assistant Professor in the Department of Morphology of the School of Medical Sciences of Santa Casa de São Paulo, Brasil. Correspondence to: SUMMARY: For adequate treatment of patients with breast cancer, mastologists should have a complete understanding of the anatomy of the thoracic wall, axilla and breast. KEY WORDS: Thoracic wall; Axilla; Breast; Anatomy. RESUMEN: Para un adecuado tratamiento de pacientes con cáncer de mama, los mastologistas deben tener un completo conocimiento de la anatomía de la pared torácica, axila y mama.
PALABRAS CLAVE: pared torácica; Axila; mama; Anatomía. Anatomy of the thoracic wall. Anatomy of the axilla. 1. Fig. 3. 2. 2.1. Fig. 4. File:Shoulder joint.svg. Cancel Edit Delete Preview revert Text of the note (may include Wiki markup) Could not save your note (edit conflict or other problem). Please copy the text in the edit box below and insert it manually by editing this page.
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