MSK: OSTEONECROSIS AND OSTEOCHONDROSES

CASE 1:

1. Most commonly affected age group: A. 11 and 15 years old B. 1 and 5 years old C. 10 and 16 years old C. 6 and 10 years old

CASE 1: 1. Most commonly affected age group: A. 11 and 15 years old B. 1 and 5 years old C. 10 and 16 years old C. 6 and 10 years old Resnick p.1098

CASE 1 2. Most important finding for a radiographic diagnosis of Osgood Schlatter? A.Soft tissue swelling B.Fragmented tuberosity C.Avulsion D.Indistinct patellar margins

CASE 1 2. Most important finding for a radiographic diagnosis of Osgood Schlatter? A.Soft tissue swelling B.Fragmented tuberosity C.Avulsion D.Indistinct patellar margins Resnick p.1098

CASE 1 3. Predisposing conditions for this disease. A. Rapid growth spurt and participation in sports B. Previous trauma C. Obesity D. Iatrogenic

CASE 1 3. Predisposing conditions for this disease. A. Rapid growth spurt and participation in sports B. Previous trauma C. Obesity D. Iatrogenic Resnick p.1100

CASE 2: Enumerate 2 common radiographic findings: It is usually unilateral with predilection to affect the males Crescent sign

CASE 2:

CASE 2 1. Most common radiographic findings A. Fragmented sclerotic femoral ossification center B. Fissuring and fracture of the femoral marrow C. Fragmented and lucent femoral ossification center D. Fissuring and lysis of the femoral marrow

CASE 2 1. Most common radiographic findings A. Fragmented sclerotic femoral ossification center B. Fissuring and fracture of the femoral marrow C. Fragmented and lucent femoral ossification center D. Fissuring and lysis of the femoral marrow Resnick p.1090

CASE 2 2. Most common clinical signs A. Limping, pain, limitation in ROM B. Soft tissue tenderness C. Palpable mass D. None of the above

CASE 2 2. Most common clinical signs A. Limping, pain, limitation in ROM B. Soft tissue tenderness C. Palpable mass D. None of the above Resnick p.1089

CASE 2 3. A radiodense curvilinear shadow at the base of the femoral neck is called as A.Sagging rope sign B.Sagging tree sign C.Snake sign D.Cobra sign

CASE 2 3. A radiodense curvilinear shadow at the base of the femoral neck is called as A.Sagging rope sign B.Sagging tree sign C.Snake sign D.Cobra sign Resnick p.1091

CASE 3

1. Most common radiographic finding A.Flattening, increase in radiodensity and cystic lucent areas at the metatarsal head B.Flattening, radiolucent metatarsal head C.Squashed appearance of the distal metatarsal head D.Enlarged and deformed metatarsal

CASE 3: Frieberg’s infarction 1. Most common radiographic finding A.Flattening, increase in radiodensity and cystic lucent areas at the metatarsal head B.Flattening, radiolucent metatarsal head C.Squashed appearance of the distal metatarsal head D.Enlarged and deformed metatarsal Resnick p.1095

CASE 3 2. Most common location A. 2 nd metatarsal B. 3 rd metatarsal C. 4 th metatarsal D. 5 th metatarsal

CASE 3 2. Most common location A. 2 nd metatarsal B. 3 rd metatarsal C. 4 th metatarsal D. 5 th metatarsal Resnick p.1095

CASE 3 3. This disease is called as A. Freiberg’s infarction B. Kienbock’s disease C. Panner’s disease D. Thiemann’s disease

CASE 3 3. This disease is called as A. Freiberg’s infarction B. Kienbock’s disease C. Panner’s disease D. Thiemann’s disease Resnick p. 1095

CASE 4:

CASE 4

1. Diagnosis for the prior radiographs A. Bone infarct B. Osteochondroses C. Giant cell tumor D. Fibrous dysplasia

CASE 4 1. Diagnosis for the prior radiographs A. Bone infarct B. Osteochondroses C. Giant cell tumor D. Fibrous dysplasia Resnick p. 1067

CASE 4 2. Bone infarct is used to describe the ischemic death of the cellular components of bone and marrow involving the A. Metaphysis and diaphysis B. Epiphysis C. Metaphysis D. Physis

CASE 4 2. Bone infarct is used to describe the ischemic death of the cellular components of bone and marrow involving the A. Metaphysis and diaphysis B. Epiphysis C. Metaphysis D. Physis Resnick p. 1067

CASE 4 3. Imaging modality of choice A. MRI B. Bone Scan C. CT D. X-ray

CASE 4 3. Imaging modality of choice A. MRI B. Bone Scan C. CT D. X-ray Resnick p.1073