Ortho Oracle - orthopaedic operative atlas

Sacroiliac Fracture – Dislocations

– See:        – Posterior Pelvic Injuries         – Sacral Fractures        – cresent fracture: (iliac fracture)  – Fixation Techniques:     – SI joint dislocation: posterior screw fixation:           – Kellum et al 1987, unstable SI joint dislocations can produce long term pain in 60% that are treated non operatively  … Read more

Sacrum and Sacral Fractures

– See:      – Posterior Pelvic Injury:      – Sacroiliac Fracture Dislocations:      – Sacral Stress Fractures: – Anatomy of Sacrum: – Classification:     – zone I:            – frx across sacral ala can cause L5 nerve root impingement;            – about 6% … Read more

Sacral Sparing

– See: neurological exam: – Discussion:     – sacral segments must be carefully examined for sensation & motor power;     – scaral sparing is evidenced by perianal sensation, rectal motor function, and great toe flexor activity;     – in patient w/ an apparent complete neurologic injury, any sensory awareness distally or scant … Read more

RSD: Diagnostic Sympathetic Block

– Discussion:     – response to sympathetic blockade is best diagnostic test for RSD;     – over 2/3 of patients will obtain significant relief;     – patient is given at least two successful stellate ganglion blocks;     – if patient has had a technically successful sympathetic block, and does not obtain significant relief, then the … Read more

Rotators Brevis

– a series of pairs of small muscles extending from the sacrum to the axis; – origin: transverse processes of the vertebrae; – insertion: bases of the spinous processes of the 1st vertebrae above; – action: acting bilaterally, rotation of the spine to the opposite side; acting unilaterally, extension and hyperextension of the spine; – … Read more

Rotators Longus

– a series of pairs of small muscles extending from the sacrum to axis; – origin: transverse processes of the vertebrae; – insertion: bases of the spinous processes of the 2nd vertebrae above; – action: acting bilaterally, rotation of the spine to the opposite side; – nerve supply: posterior rami of the spinal nerve; – … Read more

Rotator Cuff: References

The Rotator Cuff–Symposium: Complications of Rotator Cuff Surgery. The Rotator Cuff–Symposium: Classification of Rotator Cuff Lesions. Repair of the rotator cuff. End-result study of factors influencing reconstruction. Shoulder-muscle strength and range of motion following surgical repair of full-thickness rotator-cuff tears. Isokinetic strength of the shoulder after repair of a torn rotator cuff. Concurrent rupture of the rotator … Read more

Rolando’s fracture

– See:      – Anatomy of CMC joint      – Bennett’s Fracture      – Thumb Fractures / Dislocations – Discussion:     – described in 1910 by Dr. Rolando;     – involves 3 part frx at base of metacarpal;     – in addition to volar lip frx (as seen w/ … Read more

Rheumatoid Nodules

– Discussion:     – RA may cause symptoms because of pressure and location;     – nodules may be cosmetically unacceptable;     – nodulosis occurs in 20-25% of patients with RA     – associated with strong seropositivity;     – implies aggressive disease with poor prognosis;     – may occur in benign … Read more

Rhomboids

  – Rhomboid Major:     origin: spinous process of 2nd to 5th thoracic vertebrae;     insertion: medial border of scapula from spine to inferior angle;     action: adducts scapula and elevation of medial border; the inferior fibers aid in rotating the glenoid cavity inferior;     nerve supply: dorsal scapular (C4, C5); … Read more