Lecture 10

Question 1

Type of accessory bones

Answer 1

Os trigonum
Os peroneum

Question 2

Lower limb developmental variations

Answer 2

Leg length discrepancy
Torsional responsibilities
Flat feet or high arches

Question 3

What is septic OA

Answer 3

Infection in joint and tissues

Question 4

Can ra damage cartilage

Answer 4

Yes

Question 5

Describe osteophytes

Answer 5

Natural attempts to repair
Bony lumps
Fibrocartilage
Stage 4
Originate at periosteum

Question 6

Describe subchondral sclerosis

Answer 6

Bones thicken
Later stages
Slow grow
Malignant or benign
Can be removed

Question 6

Tumour vs lesion

Answer 6

Lesion is any abnormal tissue
Can be infections tumours etc

Question 7

How to see bones cysts

Answer 7

Change in density or trabecular pattern

Question 8

Osteochondroma

Answer 8

Overgrowth of cartilage
Benign
Usually near growth plate

Question 9

Non ossifying fibroma

Answer 9

Normal adolescents
Benign

Question 10

Giant cell tumour

Answer 10

Normally in adults
Benign
Can be aggressive

Question 11

Enchondroma

Answer 11

Benign
Begin in cartilage

Question 12

Fibrous Dysplasia

Answer 12

Benign
Fibrous scar tissue
Only need surgery if weaken bone

Question 13

Aneurysmal bone cyst

Answer 13

Swelling
Benign
Vascular lesions

Question 14

Osteosarcoma

Answer 14

Malignant
Mainly teenage or kids
Grow fast
Knee hip shoulder etc

Question 15

Chondrosarcoma

Answer 15

Malignant
Mainly adults
Cartilage cells

Question 16

Ewing sarcoma

Answer 16

From bone marrow
Mainly kids
Malignant

Question 17

Multiple myeloma

Answer 17

Malignant
Mainly adults
Start in bone marrow

Question 18

Secondary tumour

Answer 18

Malignant
From something else