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Path 23
Bone and Joint Disease
| Question | Answer |
|---|---|
| What is the most common type of arthritis | DJD (Degenerative Joint Disease) |
| Which arthritis is associated with erosion, fibrillation, eburnation, subchondral cysts, and osteophytes | DJD |
| What arthritis includes findings of inflammation of the synovium, pannus, destruction of underlying bone, and ankylosis | Rheumatoid Arthritis |
| Is gout monosodium urate or calcium pyrophosphate dihydrate | Monosodium Urate |
| Is pseudogout a problem with monosodium urate or calcium pyrophosphate dihydrate | Calcium pyrophosphate dihydrate |
| What is osteopenia | decreased bone mass to below normal |
| What is osteomalacia | defective matrix mineralization usually associated with a nutritional deficit or abnormal metabolism of vitamin D |
| What is Renal Osteodystrophy | A form of osteomalasia seen in chronic renal failure |
| What is Osteoporosis | a reduction of bone mass per unit volume of bone and microarchitectural deterioration of bone |
| Osteoclastogenesis is mediated by? | Ratio of RANKL to OPG |
| Who gets primary osteoporosis | It is largely a disease of the elderly (usually older women) |
| Who gets Type I osteoporosis | primarily postmenopausal women (related to the loss of estrogen or testosterone |
| Where do you see fractures with Type I osteoporosis | distal forearm adn vertebral bodies |
| Who gets Type II osteoporosis | Men and Women typically after age 60 |
| Where do you see fractures with Type II osteoporosis | Femor, femoral neck, proximal tibia, and pelvis |
| Who gets idiopathic osteoporosis | young patients less than 60 y/o |
| What do "corduroy vertebrae" indicate | Early osteoporosis |
| What is the most sensitive and accurate method of quantifying bone mineral density | Bone densitometry |
| what is the most useful method to diagnose osteopenia | DXA |
| What is another name for osteitis deformans | Paget disease |
| What are the stages of Paget disease | Osteolytic, Osteoclastic-blastic, Osteosclerotic |
| There is evidence that Paget disease is caused by mutations in the ? signaling pathway | RANK |
| What is another name for marble bone disease, a rare hereditary disease in which osteoclasts function is defective | Osteopetrosis |
| What is the name for avascular necrosis or aseptic necrosis involving the head of the femur | Osteonecrosis |
| What are some causes of Osteonecrosis | Trauma, Caisson disease, Gaucher's, Gout, Chronic alcoholism, sickle cell disease, idiopathic |
| What are some of the most common organisms identified from osteomyelitis | Staph aureus and mycobacteria |
| What is a Closed (simple) fracture | when the broken bone does not penetrate the skin |
| What is a Colles' fracture | fracture of the distal radius |
| What is a comminuted fracture | Bone splinters into more than two fragments of bone (unstable) |
| What is a complete fracture | the bone fractures completely through the bone width |
| what is a compound fracture | the bone fracture site communicates with skin surface |
| What is a compression fracture | two bones are forced against each other |
| What is a displaced fracture | broken pieces of bone are not aligned |
| what is a greenstick fracture | bone sustains a small incomplete frature in which only one side of the bone is broken (only outside of bend is broken) |
| What is an incomplete fracture | the bone breaks without complete separation (a crack which extends only partially through the bone width |
| What is a pathological fracture | bones weakened by diseases break with little force |
| What is a spiral fracture | a twisting motion breaks the bone |
| What is a stress fracture | slowly developing fracture secondary to new repetitive loads |
| What is the prognosis for fibrous cortical defect | not a neoplasm these disappear by the end of the teens or early twenties |
| Ewing's sarcoma is associated with ? genetic finding | translocation of t(11;22) |