Week 1- Orthopaedic Classifications and Imaging Flashcards

Question

Name this special fracture?

Answer 1

Monteggia fracture | . dislocation of the radial head/proximal radio ulnar joint) with of the ulna

Answer 2

Weber A ankle fracture * Fracture of the lateral malleolus distal to the syndesmosis - Below level of ankle joint/mortise - tib/fib syndesmosis intact - Deltoid ligament intact - Medial malicious often fractured - Usually stable but can require ORIF

Answer 3

Weber B ankle fracture • Fracture at the level of the syndesmosis - At level of ankle joint, extending superiorly and laterally up fibula - Tib/fib syndesmosis intact or only partially torn - Deltoid ligament may be torn - Medial malleolus often fractured - Variable stability

Answer 4

Weber C ankle fracture * Fracture proximal to the syndesmosis - Above level of ankle joint - Tib/fib syndesmosis disrupted - Deltoid ligament injury or medial malleolus fracture present - Unstable -requires ORIF

Answer 5

Lisfranc injury - Crush injury, foot run over by car, land on foot from fall from height, sudden rotational force on plantar flexed forefoot - Gap between base of 1st and 2nd proximal MT heads - Disruption of ligament complex, fracture 4- DL

Answer 6

Jones fracture - Can be mistaken for a sprain - AP/oblique/lateral with foot fully dorsi flexed - # diaphysis fifth metatarsal

Answer 7

Patella fracture - Hard blow to front of knee - Surgical vs conservative management

Answer 8

- subcapital/ intracapsular fracture - intertrochanter/ extracapsular fracture - subtrochanteric fracture

Answer 9

- Type I fractures have the best outcome. The bone ends are impacted into one another, which facilitates vascular re-growth. - Type II fractures are not impacted and are thus less stable. However there is minimal displacement of the bones from the anatomically normal position, and this is beneficial. - Type III fractures are complete but there is only partial displacement (50%). - type IV fractures are complete with total displacement (50%). The two ends of bone are completely separated.

Answer 10

- An ankle x-ray series is required if there is pain in the Matteo lar zone and any of the following: - Bony tenderness over posterior edge of lateral malleolus (distal 6cm) or/and - Bony tenderness over posterior edge of medial malleolus /distal 6cm) or/and - Inability to weight bear /immediately and in ED)

Answer 11

- A foot x-ray series is required if there is pain in the mid foot zone and any of the following - Bony tenderness over base of 5th metatarsal or/and - Bony tenderness over the navicular or/ and - Inability to weight bear /immediately and in ED)

Answer 12

A patient with knee pain qualifiers for an x-ray if: - 55 years or older - Unable to flex knee to 90° - Inability to weight bear 14 steps - Point tenderness at proximal fibular head - Isolated point tenderness of patella

Answer 13

``` • Where has it occurred? • How has it typically moved? - anterior/posterior - medial/ lateral - superior/inferior ```

Answer 14

- Poor history and examination - Not linking radiology with clinical findings - Failure to examine all views - Poor methodical approach - Failure to order special views (1 view is 1 view too few) - Failure to identity need for a comparison view - Failure to get a second opinion

Answer 15

- trauma - hip pain - abnormal gait - inability to weight bear - arthropathy - knee pain

Answer 16

- AP - Lateral - Horizontal beam lateral - Clements-Nakayama - Dunn view

Answer 17

Examines the main pelvis ring, obturator foramina, sacroiliac joints, symphysis pubis, acetabulum, sacral foramina and proximal femur.

Answer 18

- Blunt trauma - Generalized hip pain - Arthropathy - Post operative follow up after THR - Paget's disease - Fall