origin: anterior tubercles of transverse processes of the 3rd to 6th cervical vertebrae; insertion: inferior surfaces of the basilar portion of the occipital. action: – acting bilaterally, flexes cervical vertebrae and head; – acting unilaterally, rotates and flexes cervical vertebrae and head to the same side; nerve supply: muscular branches of C1, C2, … Read more
– Discussion: – long thoracic nerve is derived from ventral rami of C5, C6, & C7 – close to their emergence from intervertebral foramina; – it runs downward & pases either in front of or behind middle scalene muscle; – it reaches upper slip of serratius anterior muscle & descends on outer surface of this … Read more
origin: transverse processes of the 1st to 5th thoracic vertebrae and the articular processes of the 4th to 7th cervical vertebrae; insertion: the posterior margin of the mastoid process; action: acting bilaterally, extends and hyperextends head; acting unilaterally, flexes and rotates the head the same side; synergists: Semispinalis capitis , spinalis capitis, Longissimus Cervicis
origin: the common broad thich tendon with Iliocostalis Lumborum, fibers from the transverse and mamillary processes of the lumbar vertebrae and lumbrosacral aponeurosis; insertion: the tips of transverse process of all thoracic vertebrae and the lower 9 or 10 ribs between the tubercles and angles; action: acting unilaterally, extension of vertebral column … Read more
Richard D. Guyer, MD Texas Back Institute Rationale – It is natural for the spine to move – Lumbar fusion is the standard of care for many degenerative spinal conditions including symptomatic disc degeneration – Lumbar total disc replacement (LTDR) is designed to remove the degenerated tissue and replace it with a device allowing mobility of … Read more
– Discussion: – at wrist, Lister’s tubercle is palpable on dorsum of radius; – it serves as a pulley for the EPL; – radial and ulnar styloid processes are also palpable, w/ tip of radial styloid process projecting 1 cm distal to that of ulna; – on … Read more
– See: – Discussion of Limb Lengthening – Limb Lengthening Fixators – Post Op Care in the Ilizarov Method: (by Dr. Mangal Parihar) – management of tibial bone defects – Osteotomy Considerations: – first described by DM Bosworth (SGO 1938), which … Read more
– See: – Flexion and Extension Views – SCIWORA Syndrome: – Anterior Ligamentous Disruption: – detected by presence of small anteroinferior avulsions and segmental disc widening; – ligaments include: anterior longitudinal ligament & Annulus fibrosus; – w/ complete cervical dislocation from anterior ligament failure, more stable internal … Read more
– Volar Wrist Ligaments: – ligaments of wrist are most highly developed on palmar side of wrist; – palmar wrist ligaments originate laterally from radial styloid, & are directed in a distal ulnar direction; – intrinsic ligaments: – radial ligaments arise on palmar facet of radial styloid passing on to capitate; – ulnar sided intrinsic … Read more
origin: transverse process of 1st 4 cervical vertebrae insertion: vertebral border of scapula between superior medial angle and scapular spine; action: elevates scapula to inferiorly rotate glenoid cavity; working with the upper Trapezius , elevates and adducts scapula; reversed origin insertion action: when scapula is fixed, laterally flexes and slightly rotates cervical spine; nerve supply: dorsal … Read more