ABFAS EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+

1 ABFAS EXAM | QUESTIONS & ANSWERS (VERIFIED) | LATEST UPDATE | GRADED A+ What type of bone healing is primary bone healing seen with Arthrodesis? Correct Answer: Membranous bone formation What are the four basic concepts for treatment of non-union? Correct Answer: 1) resection of non viable tissue 2) augment with bone graft 3) bone stimulation 4) immobilization Which type of graft has haversion stems? Correct Answer: Cortical When is the weakest point in a cortical graft? Correct Answer: 8 weeks What clinical lab finding is seen with aseptic necrosis of 1st met? Correct Answer: Increased ESR 2 What type of collagen seen in cartilage healing? Correct Answer: Type II collagen Meissners corpuscle is in what layer of skin? Correct Answer: Papillary dermis What are the three stages of graft healing? Correct Answer: Plasmic inhibition, revascularization, regeneration What iv fluid to give HTN with CHF patient? Correct Answer: D5/.33% NS How do you calculate total daily fluid requirement? Correct Answer: First 10 kg x 100cc/kg Next 10 kg x 50cc/kg Diff in kg x 100 cc/kg Add all cc up. What is Rouleaux formation? Correct Answer: Occurs with dextran administration, interferes with blood typing and Cross matching, so before giving dextran, type and cross first. 3 Name some Rapid Acting Insulin. Correct Answer: Lispro (Humalog) Aspart (Novolog) Glulisine (Apidir) Semelente Insulin Which is not a isotonic fluid? - normal saline - ringers lactate - 5% albumin - 3% NaCl Correct Answer: 3% NaCl Which is not an epiphyseal bone tumor? A. Fibrosarcoma B. Non ossifying fibroma C. Ossifying lipoma D. Osteiod Osteoma Correct Answer: B What are diaphyseal bone tumors? Correct Answer: Aneurysmal bone tumor, enchondroma, fibrous dysplasia, unicameral bone cyst, eosinophilic granuloma, Ewings 4 What are the low grade and high grade malignant bone tumors. Correct Answer: Low grade- chondrosarcoma High grade-fibrosarcoma, osteosarcoma, malignant fibrous histiocytoma, Ewings, synovial sarcoma What bone tumor is found in skull, associated with Gardeners Syndrome where patient has supernumerary teeth, malignant colon polyps. Known as hyperostosis. Correct Answer: Osteoma Bone tumor seen with osteopiokolisis. Correct Answer: Enostosis 10-30 year old male with bulls eye appearance on X-ray at the calcaneus with radiolucent nidus surrounded by sclerosis. MRI confirms nidus. Pain at site of scan says radio uptake in region of nidus? Correct Answer: Osteiod Osteoma Tetracycline is given two days preop for osteoid oateoma because? Correct Answer: To give green yellow flourescence of the nidus 5 Late lesions seen with mottled pattern with thin calcifications, radiolucent without reactive bone, metaphyseal or disphyseal, not relived with salicylate. Stage 3 benign lesion. Correct Answer: Odteblastoma Most common benign bone tumors in the body? Correct Answer: Osteochondroma Fibrous dysplasia of femoral head known as? Correct Answer: Shepherds crook deformity Subungal exostosis with more severe paraosteal reaction. Grossly lesion has nodular surface with glistening cartilage, ground glass on X-ray and mushroom pedunculated. NORAs lesion Correct Answer: Bpop - bizarre paraosteal Osteochondromatosis proliferation Soap bubble look with lobulated trabecular pattern. Eccentric located? Correct Answer: Giant cell tumor Coarsely Lucent lobular or bubbly X-ray , rare Correct Answer: Chondromyxoid fibroma Endosteal fibroma 6 Correct Answer: Desmoplasmic fibroma Polyostotic lesion, associated with McCune Albright Syndrome, pain and swelling, cafe au lait spots, Lucent with sclerosis rim Correct Answer: Fibrous dysplasia >40, well defined borders of bone resorption and deposition. Elevated serum alkaline phosphotase and urinary hydroxyproline. Correct Answer: Pagers dz of bone Punched out lesions irregular and ragged, hole within hole lesions seen on X-ray, langerhans cell Correct Answer: Eosinophilic granuloma Teenage boy with codman triangle appearance on X-ray with sunburst pattern at the distal femur. Serum alkaline phosphotase is elevated? Correct Answer: Osteosarcoma Urine shows benco jones protein, punched out lesions Correct Answer: Multiple myeloma Associated with necrobiotic xanthogranuloma Correct Answer: Multiple myeloma 7 Tempo phenomenon associated with what bone tumors Correct Answer: Anerysmal bone tumors, eosinophilic granuloma Onion skin paraosteal reactivity Correct Answer: Om, Ewings, eoisionphilic granuloma Lymphoma of bone Elevated Serum alkaline phosphotase associated with what tumors? Correct Answer: Pagets dz of bone, osteosarcoma Lipid filled bubbly macrophages seen in pathology, erylenmeyer flask at lower end of femur, hip affected Correct Answer: Gaucher's disease Urine shows benco jones protein, punched out lesions Correct Answer: Multiple myeloma Associated with necrobiotic xanthogranuloma Correct Answer: Multiple myeloma Tempo phenomenon associated with what bone tumors Correct Answer: Anerysmal bone tumors, eosinophilic granuloma 8 Onion skin paraosteal reactivity Correct Answer: Om, Ewings, eoisionphilic granuloma Lymphoma of bone Elevated Serum alkaline phosphotase associated with what tumors? Correct Answer: Pagets dz of bone, osteosarcoma To test for muscle strength, what is used? Correct Answer: Specific Muscle strength test What is grade 2 muscle strength? Correct Answer: Movement with help of resistance Which of the following indicates a lesion in the corticospinal thalamic tracts? A) hyperreflexia B) hyporeflexia Correct Answer: Hyperrelexia Which of the following indicates lesion in lower motor neuron or instrinsic muscle weakness? A) hyperreflexia B) hyporeflexia 9 Correct Answer: B What is Rossolimos sign? Correct Answer: Involves flicking the plantar aspects of the toes distally. If flexion response then pyramidal tract. Vibratory testing with tuning fork checks what? Correct Answer: Posterior columns What tracts are being tested when checking for pain and temperature? Correct Answer: Lateral spinothalamic What is associated with polydactyly? Correct Answer: Ellis van crevald syndrome (chondroectodermal dysplasia) What syndrome is associated with syndactyly? Correct Answer: Aperts syndrome What are two complications of jones tenosuspension? Correct Answer: 2nd met transfer lesion and hallux limitus 90-130 degrees Correct Answer: What is Normal Gissane angle? 10 45-65 degrees Abnormal is more than 75 degrees Correct Answer: What is normal Fowler Phillip angle? 20-40 degrees Correct Answer: What is normal Bohlers angle? CPPD (calcium pyrophosphate dihydrate) - Pseudogout Correct Answer: What inflammatory condition is noted with chondrocalcinosis? Hypertrophic osteoarthropathy Correct Answer: What is associated with clinical triad of clubbing of nails, periostitis with new bone formation, and arthritis? It presents with increased density at the lateral aspect of calc tuberosity at level of CCJ. Paget's disease of bone Correct Answer: What is associated with irregular calcaneal trabecular pattern and patchy irregular sclerotic areas - irregular mosaic pattern of the bone with symptom of pain in heel?