– Description – I Open (usually from stabbing) – II Closed (usually from motorcycle accident) – IIa Supraclavicular – preganglionic: – avulsion of nerve roots, usually from high speed injuries with other … Read more
– Discussion: – view should demonstrate the metacarpals, lunate and radius aligned – hand will appear slightly palmar flexed; – w/ proper technique, the volar pisiform will lie between the distal aspect of scaphoid and the palmar aspect of the head of the capitate; – Specific Point of Evaluation: … Read more
– Discussion: – may position frame laterally if its cross bars are made of carbon (radiolucent); – disadvantage: relatively weak stabilization in AP plane; – if two pins are used at metaparpal level, 6 cortices are obtained by distal pin capturing two cortices & more proximal pin … Read more
– Discussion: Anterior Lesion: – lateral compression injury, contralateral type (Bucket Handle): – bucket handle type of injury is usually caused by direct blow to pelvis; – anterior fracture may be on the opposite side to the posterior lesion (contralateral type) or all four rami may fracture anteriorly; … Read more
– See: Extensor Mechanism of Fingers – Discussion: – two lateral bands arise from the sides of the EDC just proximal to the PIP; – interossei supplement the lateral bands on both sides of the digit; – lumbricals supplement lateral bands on radial side of the digit; … Read more
– Discussion: – it is a continuation of musculocutaneous nerve originating from C5 – C8 nerve roots and lateral cord of brachial plexus; – be aware of the frequent anatomic variation as it crosses the elbow; – becomes superficial at anterolateral aspect of elbow between biceps and brachialis muscle; … Read more
– See: – Anterior Cruciate Ligament – Anterolateral Rotatory Instability – Clunk Test – Losee Test – Pivot shift – Discussion: – this is a variant of the anterior drawer test, in which the examination is carried out … Read more
– See Laboratory work up for Infected Total Knee: – Culture Specimen: – in the report by Levine BR and Evans BG, the authors studied 3 different intraoperative culture techniques and their diagnostic value in determining clinical infection in patients after a total joint replacement; – 24 patients (34 … Read more
– See: Metatrophic Dysplasia: – Discussion: – this disorder is frequently confused with metatrophic dysplasia; – characterized by disproportionate short trunk dwarfism, kyphoscliosis, and joint stiffness, and contractures of the hands; – assessment of atlantoaxial instability is essential; – major orthopaedic deformity is limited joint motion and … Read more
– See: Carpal Instability – Discussion: – scaphoid normally tends to flex under compressive load, and exerts a similar influence on lunate due to ligamentous attachments; – triquetrum tends to extend w/ compressive loading & will tend to move the lunate into extension; – hence lunate is in a … Read more