Disorders of the Musculoskeletal System (Bone & Joints)

Question 1

Osteitis Deformans (PAGETS)

Answer 1

Older males, bone deformities, mosaic layers, osteoporosis circumscipta (skull) bowing tibia, pseudofractures, cortical thickening, osteoblastic - osteoclastic activity, saber skin, deafness, coarsened trabeculae, IVORY WHITE VERTEBRA (leads to osteosarcoma,

Question 2

Osteitis Deformans (PAGETS)

Answer 2

Increased alkaline phosphatase (40xs)

Question 3

Neurofibromatosis (VON RECKLINGHAUSENS)

Answer 3

Genetically inherited, autosomal dominant, chromosome 17

Question 4

Neurofibromas

Answer 4

Can compress nerves, cafe-au-lait spots (neurofibromatosis)

Question 5

Fibrous Dysplasia

Answer 5

Bone thinning, lesions/growths in bones

Question 6

Monostotic

Answer 6

One bone

Question 7

Polyostotic

Answer 7

Many bones

Question 8

McCune (ALBRIGHT’S SYNDROME)

Answer 8

Yound girls, several bones involved, endocrine related, precocious (early puberty) (fibrous Dysplasia)

Question 9

Hemangioma

Answer 9

MC benign bone tumor of the vertebra

Question 10

Osteochondroma

Answer 10

MC benign bone tumor of the body (sessile[no stalk] & pedunculated)

Question 11

Osteogenesis Imperfecta (BRITTLE BONE)

Answer 11

Genetic, abnormal collagen, fractures, blue sclera

Question 12

Osteopetrosis

Answer 12

Overgrowth & sclerosis bone, however, weak & fractures

Question 13

Osteoporosis

Answer 13

Post menopausal, increased fractures

Question 14

Osteomyelitis

Answer 14

Staph infection in bone

Question 15

Pott’s Disease

Answer 15

TB of spine, spreads lungs –> thoracics –> eats joint –> vertebra collapses –> increase kyphosis = Gibbus deformity (sharp angle)

Question 16

Avulsion Fracture

Answer 16

Ligament pulls away from bone

Question 17

Compound Fracture

Answer 17

Protrusion though skin

Question 18

Simple Fracture

Answer 18

No protrusion through the skin

Question 19

Avascular Necrosis

Answer 19

AKA: AVN, Ischemic necrosis, Aseptic necrosis & Osteochondrosis

Question 20

Osgood Schlatter’s

Answer 20

Tibial tuberosity, 13-16 y.o. (Avascular Necrosis)

Question 21

Legg Calve Perthes (LCP)

Answer 21

Femoral head, 4-8 y.o. (Avascular Necrosis)

Question 22

Osteoarthritis (Degenerative Joint Disease)

Answer 22

• Narrowing joint spaces, subchondral sclerosis & osteoblastic activity
• Weight bearing joint, Asymmetrical Labs are normal

Question 23

Rheumatoid Arthritis

Answer 23

• Female, 20-40 y.o., SYMMETRICAL, pannus formation, ulnar deviation, inflammation of synovium, affects limbs & cervicals, morning stiffness
• RA latex, Sero +

Question 24

RA + pneumonia =

Answer 24

Caplan’s Syndrome

Question 25

Felty’s Syndrome

Answer 25

LONG standing RA (hepatomegaly, splenomegaly)

Question 26

Juvenile RA

Answer 26

STILL’S disease

Question 27

Reiter’s

Answer 27

-Adult Males, STD, Chlamydia, Feet & Spine CONJUNCTIVITIS, urethritis
-Lover’s heel, calcaneal spur
“Can’t see, can’t pee, can’t dance with me”

Question 28

Charcot Joint (Neurogenic Joint)

Answer 28

• Affects joints (debris, dysfunction, deformity, dislocation, destructive, distention, disease)
• Posterior column destruction, DM (feet), Syringomyelia (shoulder)

Question 29

Psoriatic

Answer 29

-Pencil-in-cup deformity in phalanx, destroys joints
“Pitted nails”
“Silver Scales”
“Ray Sign” on X-ray

Question 30

Gout

Answer 30

• Tophi, podagra, destruction around joint, purine metabolism problem
• Uric acid crystals

Question 31

Pseudogout (CPPD)

Answer 31

• Knee

- Calcium pyrophosphate crystals

Question 32

Ankylosing Spondylitis (MARIE STRUMPELL)

Answer 32

• Symmetrical, starts in SI joints, young males, poker or bamboo spine
• HLA-B27
• Breathing difficulties, trolley track, dagger sign, shiny corner

Question 33

DISH (Diffuse Idiopathic Skeletal Hyperostosis) (Forestier’s Disease)

Answer 33

-Males over 50 y.o., ALL calcification, cervical pain, stiffness & decreased ROM
-Affects cervicals, associated with DM
“Toss a DISH in the FORREST”