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Ortho
Chapter 22
Question | Answer |
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Subacromial rotator cuff impingement | Disorder in which the tendons of the rotator cuff are crowded, buttressed, or compressed under the coracoacromial arch, ressulting in mechanical wear, stress, and friction |
Primary shoulder inpingement | Mechanical compression of the rotator cuff tendons, primarily the supraspinatus tendon, as they pass betwee the acromion and coracoid process. |
Secondary shoulder impingement | related to glenohumeral instability that creates a reduced subacromial space because the humeral head elevates and minimizes the area under the coracoacromial ligament Age-related degenerative changes also can result in a decrease subacromial margi |
Supraspinatus tendon | the most common structure involve with rotator cuff impingement. |
"watershed zone", critical zone, or critical portion | is refer to the area just proximal to the insertion to the greates tuberosityis hypovascular. |