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44 Cards in this Set
- Front
- Back
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How long is cortical bone graft lucent? |
12 weeks |
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How do u differentiate bone infection from bone graft healing? |
Bone graft will have no pain, fever, or focal erosions |
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Arthritides assoc with HLA B27 |
AS reactive arthritis/Reiters Psoriatic Enteropathic arthropathies (chrohns, UC) |
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Three reasons for vessel calcification seen on ABIs |
DM RA renal failure |
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When do u get a TcPO2? |
If non compressible vessels |
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What TcPO2 is needed for healing? |
>30 needed to heal (>40 in DM)
If less than 40, means poor healing and hypoxia
If less than 30, means critical ischemia |
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Raynaud's may be primary or secondary to what? |
Connective tissue dz like lupus or scleroderma (crest) |
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Most likely organism to cause hematogenous OM in PT with prosthetic joint |
S aureus |
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What labs for pre op malignant hyperthermia? |
Those that indicate respiratory acidosis
LDH alk phos SGOT SGPT
CPK up only late in reaction |
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Location of osteochondroma |
Outside of bone adjacent to growth plate |
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When might u think osteochondroma is becoming malignant? |
Growth after puberty Pain Cartilaginous cap>2 cm |
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If osteochondroma becomes malignant what does it become? |
Chondrosarcoma |
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How do I differentiate btwn osteochondroma and subungual exostosis? |
OC has hyaline cap.
Subungual exostosis has fibrocartilage cap |
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Olliers dz |
Multiple enchondromas |
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Mafuccis syndrome |
Multiple enchondromas plus soft tissue hemangioma a |
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If enchondromas become Malignant what does it become? |
Low grade chondrosarcoma |
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What would make u think malignancy in enchondromas? |
Pain at night or at rest (pain caused by activity is less worrisome) |
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In LLD, Which side pronates?
What does this mean clinically? |
Short side does so abducts and everts
Means increased pressure medially on short side |
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Other names for AVN? |
Aseptic necrosis Osteonecrosis |
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Major reasons for AVN? |
Trauma to blood supply Dz Prednisone ETOH |
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What does technetium 99 bind to? |
Hydroxyapatite |
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Bones present at birth |
Calcaneus Talus Cuboid Met shafts |
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Age of ossification: Lateral cuneiform Medial cuneiform Intermediate cuneiform Navicular Sesamoids |
Lateral cuneiform. 1 Medial cuneiform. 2 Intermediate cuneiform. 3 Navicular. 4 Sesamoids 8 |
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Main benefit of free flap |
Least post op contraction |
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Most common reason for recurrence of TEV? |
Under correction of adduction and equinus |
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Hallmark of sarcoidosis? |
Lots of granulomas in organs, usually skin and lungs. |
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Hallmark of scleroderma |
Increased collagen, changes connective tissues. See hardening of skin and internal organs. |
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Scleroderma aka ? |
Systemic sclerosis CREST |
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Describe CREST syndrome |
Calcinosis Raynaud's Esophageal dysfunction Sclerodactyly Telangiectasias
Findings in limited scleroderma |
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Difference btwn limited and diffuse scleroderma? |
Limited is skin only Diffuse involves lungs heart kidneys |
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Coleman block test is used to assess what? |
Cavovarus, tells u the effect of the rear foot |
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What ABI is required for WOUND healing? |
0.4 |
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What is Kohler's disease |
AVNnavicular
Tx with casting |
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What is a Dwyer osteotomy and what is it used for? |
A laterally based closing wedge used for calcaneovarus |
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What is a Dwyer osteotomy and what is it used for? |
A laterally based closing wedge used for calcaneovarus |
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Loss of both sesamoids will be to what deformity? |
Hallux hammertoe
Lose FHB function so FHL overpowers. |
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Nail changes for bacterial endocarditis? |
Splinter hemorrhages |
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Most common bone tumor of the foot |
Osteochondroma |
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What is a Brodie's abscess |
Sub acute osteomyelitis Usually seen in kids, in the metaphysis or epiphysis |
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What is a Brodie's abscess |
Sub acute osteomyelitis Usually seen in kids, in the metaphysis or epiphysis |
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If you lose the medial dorsal cutaneous nerve, which toes will be numb? |
Second and third |
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How do you differentiate pulmonary embolism him from atelectasis? |
Atelectasis has a very high temperature. PE will have a lower temperature, low blood pressure, low heart rate, shortness of breath, and sweating. |
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How will a transfusion of one unit of packed red blood cells change the hemoglobin and hematocrit? |
Will increase hemoglobin by 1%, increased hematocrit by 3% |
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When do you use FFP? |
For a coagulation abnormality |
