Bone

Question 1

Slipped Capital Femoral Epiphysis

Answer 1

Obese boys with dull achy pain in the hip and a limp

Question 2

Legg-Calves-Perthes

Answer 2

Limp - femur head avascular necrosis

Question 3

Osgood-Schlatter

Answer 3

Knee pain - tibial tubercle avascular necrosis

Question 4

Septic Arthritis

Answer 4

Joint pain with fever - Staph aureus

Question 5

Ankylosing Spondylitis

Answer 5

Ligament ossification—> vertebral body fusion, dec lumbar curve, stiffer in morning, kyphosis, uveitis, HLA B-27

Question 6

Caudate Equina Syndrome

Answer 6

Saddle anesthesia: can’t feel butt, thighs, perineum

Question 7

Where does bone cancer metastases occur from?

Answer 7

Breast, prostate, lung, kidney

Question 8

What is the most common bone cancer?

Answer 8

Metastasis

Question 9

Costochondritis

Answer 9

Painful swelling of chest joint, bone attachments, worse with deep breath

Question 10

Disk Herniation

Answer 10

Straight leg raise —> shooting pain

Question 11

Lumbar Stenosis

Answer 11

MRI hourglass, low back pain

Question 12

Ochronosis = Alkaptonuria

Answer 12

Kids with OA, Black urine, homogentisate oxidase deficiency

Question 13

Osteitis Fibrosis Cystica

Answer 13

Inflammation of bone with holes due to high PTN

Question 14

Osteogenesis Imperfecta

Answer 14

Blue sclera, multiple broken bones

Question 15

Osteomalacia = Rickets

Answer 15

Soft bones (waddling gait)
Craniotabes (soft skull)
Rachitic rosary (costochondral thickening)
Harrison’s groove
Pigeon breast (sternum protrusion)

Question 16

Osteomyelitis

Answer 16

Infected bones

Question 17

Osteonecrosis = Legg-Calve-Perthes

Answer 17

Wedge shaped necrosis of femur head

Question 18

Osteopenia

Answer 18

Lost bone mass

Question 19

Osteopetrosis

Answer 19

Dec osteoclastic activity —> marble bones (obliterate own bone)

Question 20

Osteoporosis

Answer 20

Loss of bone matrix (not calcification) —> compression fractures

Question 21

Osteosclerosis

Answer 21

Thick bones from scarring

Question 22

Paget’s Disease

Answer 22

“My hat doesn’t fit”, paramyxovirus, inc osteoclasts/blasts, fluffy bone, osteosarcoma, inc CO heart failure, deafness, inc alkaline phosphatase alone