– See: Arterial Development of the Limbs: – Embryologic Anatomy: – subclavian artery projects into early upper limb bud in axial position, its proximal portion becoming subclavian-axillary- brachial trunk, & its distal portion becoming interosseous artery that initially supplies a plexus of arteries in the primitive hand; … Read more
– Carpal Tunnel Syndrome – Combined Lesions of the Median and Ulnar Nerves: – High Median Nerve Lesions – Low Median Nerve Lesions – Median Nerve Block – Median Nerve Injuries at the Wrist – Martin Gruber Anastomosis – Anatomy: – roots: C6, C7, C8, and T1 (? C5) – brachial plexus – cords: – … Read more
– See: Medial Approach: – Discussion: – medial epicondyle is common origin of several flexor muscles of hand and wrist; – when medial epicondyle is frxed, flexor muscles pull fragment distally; – during surgical procedure care must be made to protect ulnar nerve; – Fixation Stratedgy: – … Read more
– Anatomy: – innervation: (C8, T1); – medial antebrachial cutaneous nerve descends in the arm anterior and medial to brachial artery; – at distal to mid forearm level, nerve emerges from under brachial fascia adjacent to basilic vein; – it innervates the skin of anterior & medial … Read more
– Outside Link: – An Approach to the Head Injured Patient by Paul Marik, MD – Trauma Menu: – Spine / C-spine – Orders for the Spine Injured Patient: Anesthesia in the Spinal Cord Injured Patient: Fluids in the Head Injured Pt: Hyperventilation Glasgow Coma Scale Head … Read more
– Discussion: – known as carpus curves, is result of epiphyseal arrest on ulnar & volar half of the distal radius, which causes articular surface to be directed ulnarward and volarward; – genetics: it is inhertited as autosomal dominant trait w/ variable expressivity; – females are affected four … Read more
– See: – Bunnel Test for Intrinsic Tightness: – Extensor Mechanism of Digits – Lumbrical Muscle Sheaths – Lumbical Plus Finger: – Origin: – tendons of FDP tendon in center of palm, just proximal to the flexor sheath and the A1 … Read more
– Discussion: – lunate shaped spacer implant made of silicone, vitallium, acrylic, or rolled-tendon is inserted into theresulting space to prevent migration of other carpal bones; – due to the high rate of synovitis, most surgeons are now reluctant to use lunate implants; – Technical Considerations: – dorsal approach is … Read more
– See: Triquetrium – Lunotriquetral Dissociation: – ulnar side carpal instability; – involves disruption of lunotriquetral & volar radiolunotriquetral ligaments & attentuation or rupture of dorsal radiotriquetral attachments; – w/ a isolated tear of the LT interosseous ligament, there will be only a small amount of increased motion, however, … Read more