Glossary

Acromion

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Ball and Socket Joint

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Bankhart lesion

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Corocoid

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Deltoid

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Dynamic Stabilizers

The dynamic stabilisers normally hold the joint in place (pulling the humerus medially) but in a dislocation muscular spasm continues to pull on the humeral head and shaft.

Glenoid

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Glenohumeral joint

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Glenoid Fossa

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Hill-Sachs lesion

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Humerus

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Infraspinatus

Infraspinatus is a rotator cuff muscle. It originates from XXX and inserts into the XXX and acts by XXX the humerus . The nerve supply is from XXX

Labrum cartilage

rim which increases depth of glenoid cup

Long Head of Biceps

The long head of biceps is positioned longitudinally across the glenohumeral joint and acts to pull the dislocated humeral head upwards, fixing it in the subcoracoid/glenoid area.

In spasm, this muscle resists anterior movement of the head and may also bowstring anterolateral to the axis of the head, further restricting the returning humeral head.

Rotator cuff

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Supraspinatus

Supraspinatus is a rotator cuff muscle. It originates from XXX and inserts into the XXX and acts by XXX the humerus . The nerve supply is from XXX

Scapula

The position of the glenoid fossa is often forgotten during reduction attempts. If the scapula is fully migrated around the chest wall you will struggle to reduce the shoulder even if you are doing everything else correctly.

A fixed obstacle (the prominent anteriorly placed glenoid rim/labrum) sits supralateral to the displaced head – relocation requires the humeral head to move anterior and lateral/supralateral.

Static Stabilizers

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Subcorocoid

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Subglenoid

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Subscapularis

Subscapularis is a rotator cuff muscle. It originates from XXX and inserts into the lesser tuberosity, internally rotating the humerus (resisting external rotation) and holding the head medially (resisting lateral movement). The nerve supply is from XXX

Teres minor

Teres minor is a rotator cuff muscle. It originates from XXX and inserts into the XXX and acts by XXX the humerus . The nerve supply is from XXX

Traction / Countertraction

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