– See: – Pathologic Hip Frx – Metastatic Tumors to Bone – Discussion: – fractures which occur from low energy injuries which occur thru an area of bone weakness with a pre-existing abnormality; – injured area demonstrates distored archetecture and distored bone density; – Diff Dx: … Read more
– History: 1963 – Maurizio described the association of patellar tendonitis with jumping 1973 – Blazina, et al. coined the term “jumper’s knee” 1978 – Mariani, et al. and Roels, et al. widened the term “jumper’s knee” to include pathology of the patellar tendon at the tibial tuberosity 1986 … Read more
– See: Patella Alta – Discussion: – patella infera indicates an abnormally low patella; – it most often results from to soft tissue contracture and hypotonia of quadriceps muscle following surgery or trauma to knee, – Lateral Radiograph of the Knee: – is used to determine patellar height; – … Read more
– See: – Images in clinical medicine. Neuralgic amyotrophy. – Discussion: – brachial plexus / brachial neuritis – acute brachial neuropathy (acute brachial radiculitis, Parsonage-Turner syndrome) is of unknown etiology and appears sporadically but may follow immunization, or viral illness; – predominant clinical finding is pain, usually limited to the shoulder; … Read more
– Discussion: – preadolescents w/ spinal cord injury have > 95% prevalence of scoliosis & 50% of pts have a pelvic obliquity; – progressive kyphoscoliosis results from effects of gravity & loss of spinal musculature; – up to 2/3 of these patients will requre arthrodesis to prevent severe curve progression; – Non Operative … Read more
– Discussion: – disease involving capitulum of distal humerus that produced changes similar to those observed in Legg Calve Perthes disease; – it should be distinguished from osteochondritis dissecans (which occurs in the older child or adolescent – older than age 13 years); – pathologic process is … Read more
– Discussion: – predisposing conditions: – open fracture (traumatic tibia infections) – sickle cell anemia – septic arthritis – in children, distinguishing between metaphyseal osteomyelitis and … Read more
– See: tibial infection and debridement of tibial fractures – Discussion: – see cierny classifcation – a sequestrum is infected dead bone resulting from osteomyelitis; – it is secluded from host immune system and is secluded from antibiotics; – result is a chronic and persistent of infection; … Read more
– Discussion: – see: homeobox genes database – history: discovered by Marshall Urist in the early 1960s; – currently sixteen different proteins (BMP-1 through BMP-16) have been identified; – these proteins can now be produced by recombinant DNA technology and are further purified by column chromatography; … Read more
Discussion although a traumatic etiology is believed to play a major role in production of these lesions, idiopathic osteonecrosis may be another factor; anterolateral lesions: may result from impaction of talus on fibula as the dorsiflexed ankle is forced into inversion (see ankle sprain); the vast majority are caused by trauma; these lesions tend to … Read more