– Discussion: (see: dynamic instability); – capitolunate joint has high potential for instability, since it is mainly stabilized only by the radiocapitate ligament (and captiotriquetral ligament, to a lesser degree); (see wrist ligaments); – may result from malreduced radial styloid frx, or any condition which shortens or reduces tension in the … Read more
– Discussion: – radial styloid frxs most commonly occur from tension forces sustained during ulnar deviation and supination of the wrist; – strong radiocarpal ligament, particularly radioscaphocapitate ligament, avulse radial styloid from metaphysis of the radius; – ligamentous attachments maintains alignment radial styloid to carpus, but styloid may be markedly displaced from … Read more
– Anesthesia: – GEA if possible (a neurological exam is often required at the end of the case); – Equipement: – bipolar cautery – hand tray – bone reduction clamps – small Homans – small fragment set (Synthes – Allen Burrus – # … Read more
– See: – Cervical Stenosis: – Central Cord Syndrome – Soft Disc Protrusion: – SCIWORA Syndrome – Uncovertebral joints – Discussion: – refers to a combination of degenerative disc disease and osteophyte formation; – cervical spondylosis typcially begins to be seen at age 40-50, is seen in men > women, & most common occurs at … Read more
– See: Fracture Dislocations of the Spine: Flexion Distraction Injuries: – Discussion: – Chance frx & posterior ligament rupture (variant of flexion distraction injury pattern) maypresent w/ minor anterior vertebral compression; – in Chance frx, the anterior column fails in tension (along w/ the middle … Read more
– See: – Radiographic Changes of Cervical Spine in JRA: – Rheumatoid Arthritis: – Transverse Ligament Rupture: – Discussion: – cerival spine involvement is common in RA (up to 90%) & is more common w/ long standing disease and multiple joint involvement; … Read more
– Discussion: – musculoskeletal dz is characterized by congenital immobility of multiple joints. – there may be as many as 10 to 20 specific arthrogrypotic disorders, all with similar joint manifestations; – believed to be caused by oligohydrmnios & conditions limiting fetal movement; – joint develops in … Read more
– See: – Arteriography / angiographic 3D view – Arterio-venous malformations – Arterial Trauma – Development – Fractures associated with Arterial Injuries – Intimal Injuries – Microanastomosis – Pharmocological Agents in Vascular Surgery – Prosthetic … Read more
– See: – Orthofix – Over Distraction of Wrist Joint – Positioning: – supine, hand table, flouro; – prep for contralateral iliac crest (ipsilateral w/ less personel); – Frame Configuration: – Lateral Frame: – 45 deg Oblique Frame: … Read more
– See: – PA View – Radial Inclination – Discussion: – AP has the dorsum of the hand touching the film, with the x-ray beam passing palmar to dorsal, whereas in a PA film, the palmar surface lies flat on the film and the x-ray beam passes from the dorsal to palmar surface; – palmar … Read more