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SHOULDER SUBLUXATION

Neurology

SHOULDER SUBLUXATION

1. Clinically presents as a palpable gap between the acromion and humeral head (increased acromio-humeral gap distance). More commonly, inferior subluxation.

2. Pathogenic factors: steep angulation of glenoid fossa, weak supraspinatus muscle, weak scapular support on thoracic cage, contraction of the deltoid and rotator cuff muscles on the abducted humerus.

3. A number of recent studies failed to show any correlation between shoulder subluxation and pain.

4. Basmajian principle: Decreased trapezius tone => the scapula rotates and humeral head subluxes from the glenoid fossa.


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REFERENCES

1. Wilkinson, I. (2017). Oxford handbook of clinical medicine. Oxford: Oxford University Press.
2. Hannaman, R. A., Bullock, L., Hatchell, C. A., & Yoffe, M. (2016). Internal medicine review core curriculum, 2017-2018. CO Springs, CO: MedStudy.
3. Image: no reference available.

Ⓒ A. Manickam 2018

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