– See: – Intrinsic Plus Finger – Lumbical Plus Finger – Phalangeal Injury – Discussion: – lumbical plus finger should be distinguished from intrinsic plus finger; – Clinical Presentation: – gripping medium-sized objects such as hammer handle is done primarily through IP joint flexion because … Read more
– See: – Intrinsic Muscles of the Hand: – Intrinsic Muscles Deficit – Discussion: – involves motor transfer to the radial side of the mid proximal phalanx, just distal to the attachment site of the lumbrical (as opposed to insertion on lateral band); – this … Read more
– Discussion: – bulbocaverosus reflex refers to anal sphincter contraction in response to squeezing the glans penis or tugging on the Foley; – reflex involves S-1, S-2, and S-3 nerve roots and is spinal cord- mediated reflex arc; – following spinal cord trauma, presence or absence of … Read more
– See: Meniscal Tears – Discussion: – vertical longitudinal tear w/ displacement of inner margin – more common in younger pts & are frequently assoc w/ ACL tear; – 3 times more common in the medial as compared to the lat compartment – can produce the classic … Read more
– Work Up for Brachial Plexus Injuries – Brachial Neuritis: – Erb’s Palsy – Leffert Classification of Brachial Plexus Injuries; – Lower Root Injury: (Klumpke) – Obstetrical Paralysis: – Parsonage-Turner Syndrome: – Traumatic Brachial Plexus Palsy in Children – Stinger / Upper Trunk Injuries – Work Up for Brachial Plexus Injuries: – Anatomy: – roots: – … Read more
– origin: – proximal 2/3 of the lateral supracondylar ridge of the humerus and lateral intermuscular septum; – insertion: – inserts into lateral surface of distal radius, immediately above styloid process; – synergist: Brachialis , biceps brachi ; – nerve supply: radial – C6 > C5 – function: … Read more
– See: – Metacarpal Neck Frx – Metacarpal Shaft Frx – Discussion: – metacarpal neck frx involving little finger; – only collateral ligaments, remain attached to the proximal phalanx, & therefore metacarpal head is freed from any proximal stabilizing influence; – metacarpal head tilts volarly causing joint to lie in hyperextension & collateral ligaments become … Read more
– See: – Arteries of the Upper Limb; – Profunda Brachi; – Anatomy: – brachial artery originates at the lateral border of teres major muscle & courses down anterior humerus posterior to bicipital aponeurosis; – brachial artery has three main braches, of which profunda brachi … Read more
– See: Parsonage-Turner Syndrome: – Discussion: – characterized by acute or subacute onset of severe pain in neck, arm, & hand along w/ varialble muscle weakness & loss in sensation; – pain is usually severe and constant and aggravated by moving the arm; – diff dx: neuropathic disorder – … Read more
– See: Phalangeal Boutonnere Injuries – Discussion: – most common thumb deformity in RA; – results from arthritic involvement of MP joint and elongation or erosion of the attachement of the EPB tendon to the base of proximal phalanx (leading to flexion deformity); – EPL tendon & adductor expansions … Read more