– Discussion: – w/ in joint capsule, variable ligs (superior, middle, & IGHL), are primary components of static restraint in glenohumeral joint. – glenoid version: – Biomechanical Evaluation of Glenoid Version and Dislocation Direction on the Influence of Anterior Shoulder Instability and Development of Hill-Sachs Lesions – Scapulohumeral Ligaments: (5 … Read more
– See: Total Shoulder Replacement – Technique: – deliver the proximal humerus: – anteriorly dislocate the humeral head by extending, abducting, and externally rotating the arm; – a blunt Homan retractor is then placed behind the humeral head to maintain its dislocated position; … Read more
– Discussion: – its essential to restore anatomic length of humerus to provide proper amount of tension in deltoid so that patient will maintain the ability to forward flex; – in the case of a hemiarthroplasty performed for 4 part frx, length will always have to be regained; … Read more
– Discussion: – serratus anterior arises from upper eight ribs, inserts on vertebral border of scapula, is innervated by long thoracic nerve, and functions to draw scapula forward in sports such as a jab in boxing; – paralysis produces characteristic prominence (“medial winging”) of vertebral border of the scapula; … Read more
– See: Motor Conduction Latency: – Sensory Amplitude: – among the earliest changes in a nerve compression sydrome is changes in distal sensory amplitude, followed by an increase in distal sensory latency; – Sensory Conduction Latency: – more sensitive than is motor conduction velocity; – amplitude of action … Read more
– See: – Digit Reimplantation / Reconstruction – Thumb Soft Tissue Defects / Amputations – Indications: selective thumb reconstruction – Technique: – second metatarsal may be removed along with 2nd toe with little functional impairment; – toe is taken from contralateral foot to facilitate anastomosis; – dorsal … Read more
– See: – Burn Management: – Chemical Burns: – Electrical Burns: – Frost Bite: – 2nd degree / superficial: – partial thickness which involves the dermis and a portion of the dermis; … Read more
– See: Acetabular Component Menu Discussion it is controversial as to whether screws are necessary in THR, and there are relative advantages and disadvantages; cups should be designed with only 2-3 holes so as to maximize the porous coating surface and to minimize conduit for osteolysis; acetabular cup insertion: advantages of screw insertion: theoretically, screw … Read more
– See: vascular malformations of the upper extremity – Clinical Presentation: – usually begins incidiously – vague weakness, wt loss, diffuse stiffness, aching, burning polyarticular arthritis; – diffuse edema of hands; – skin and GI manifestations are common; – hand: … Read more