– See: Scaphoid Frx Menu: – scaphoid nonunions: – Discusssion: – bone grafting may be indicated for scaphoid malunion or non union; – malunion: – indicators of scaphoid malunion: classic findings are a dorsal humpback deformity and DISI deformity; – indications for bone grafting include radiographic deformity along with pain, weakness, and loss … Read more
– See: – Arteries of the Upper Limb – Vascular Anatomy of Scaphoid – Vascularity of the Lunate – Discussion: – vascular supply of wrist is obtained thru radial, ulnar, anterior interosseous arteries and the deep palmar arch; – extraosseous arterial pattern: … Read more
– See: – adolescent blounts: – growth plate anatomy – Infantile Blounts Disease: (pathologic tibia vara) – differential diagnosis and examination (see genu varum) – most common form of disease; – growth disorder of medial portion of proximal tibial physis; – … Read more
– Dicussion: – may occur in the fingers as a pustule that becomes larger and spreads peripherally; – the center heals, leaving a central scar with a spreading perimeter; – if osseus lesions occur in the digits, they may be secondary to to pulmonary disease; – treatment … Read more
– Discussion: (see: necrotizing fascitis ) – human bite wounds – snake bite: – Bacteriology of rattlesnake venom and implications for therapy. – cat bite: (see cat scratch disease) – consider pasteurella multocida; note P. multocida infection develops within 24hrs; – with bites on the finger observe for osteomyelitis; … Read more
– Discussion: – integrity of all ligaments of cervical canal is lost, including posterior ligaments, anterior & posterior longitudinal ligaments, disc, and articular facet joints; – this type of injury occurs only when middle & posterior ligamentous structures are disrupted; – there are typically no frxs of facets because … Read more
– Discussion: – indicated for fractures of the forearm, wrist, and hand; – bier block is not appropriate for fractures about the elbow, and may not be appropriate in patients with excessive obesity (w/ a large fatty arm); – Precautions: – prior to performing the Bier block, be sure that … Read more
– See: – Rolando’s fracture – Thumb Fractures/Dislocations – X-ray Studies – Discussion: – most frequent of all thumb frx; – described in 1882 by Dr. Edward Bennet; – it is a frx dislocation, intra-articular frx at base of … Read more
– Discussion: – triquetrum is displaced dorsally and palmarly on the lunate, demonstrating increase excursion over the normal side and often a painful crepitus; – compression test: displacement of the triquetrum ulnarly during radioulnar deviation, which is also painful; Shear test: – for triquetrolunate strain; – shear force applied … Read more
– Discussion: (See: Blood Supply to Femoral Head) – there are certain areas of bone in which vascular supply is precarious; – these areas are subject to infarction and avascular necrosis; – three such regions are head of femur, body of talus, & scaphoid; – they have the … Read more