Data Trace Editor – Anterior Compartment Syndrome: – anterior compartment of leg is involved most often; – pain is often burning in nature which worsens with activity and completely subsides after 15 minutes of activity cessation; – diff dx: – tibial and fibular stress frx; – … Read more
– 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
– Diff Dx: – stress fractures (identified on 45 deg medial oblique view) – inflammatory arthritides (RA or Reiter’s Syndrome) – plantar fasciitis – distal tibial tarsal syndrome – heel pad atrophy; – after the age of 40, the adipose tissue begins to atrophy, w/ resulting loss of absorbency
– Discussion: – rare disorder characterized by short limb dwarfism, polydactyly, dysplasia of the fingernails and toenails, dental deficiencies, & congenital heart disease; – common in the Amish; – short limb disproportionate dwarves are characterized by acromesomelia, w/ the forearms, hands, legs, and feet involved to a greater extent than … Read more
– Discussion: – two major glycosaminoglycans w/ in cartilage ground substance consist of chondroitin sulfate and keratan sulfate; – both of these substances are covalently attached to the core protein of proteoglycan; – their concentration and distribution w/ in matrix vary considerably according to age, type of cartilage, & … Read more
– Discussion: – pins penetration of joint is a leading cause of chondrolysis; – penetration by a single screw (which is immediately removed) has a low incidence of chondrolysis; – if chondrolysis or AVN develops, early osteoarthritis is more likely; – some pts w/ chondrolysis … Read more
– Discussion: – rapid, progressive loss of joint space on radiographs and associated loss of clinical hip motion; – pins penetration of joint is a leading cause of chondrolysis; – penetration by a single screw (which is immediately removed) has a low incidence of chondrolysis; – if chondrolysis or AVN … Read more
– See: Patella and Patellofemoral Function – Discussion: – chondromalacia describes softening & fissuring of articular hyaline cartilage; – chondromalacia may result from an excessive load on patellofemoral joint, but disuse may be a contributing factor; – most common in yound women; – relationship between chondrosis & … Read more
– Discussion: – locally painfull benign cartilaginous lesion of bone; – it occurrs in adolescents; – located in metaphyses of major long bones; – this lesion most often presents as an active stage 2 lesion which is locally destructive & has a high recurrance rate (up to … Read more
– Discussion: (see cartilage menu) – chondrocytes occupy lacunae distributed through the matrix; – chondrocytes are spherical in deep portion, but are flattened toward the periphery of cartilage; – peripheral lacuna may house a single chondrocyte; – deeper lacunae may contain two or more … Read more