L11: Lower limb and knee trauma

Question 1

Signs and symptoms of compartment syndrome?

Answer 1

Question 2

Consequences of complete ischaemia?

Answer 2

Question 3

Indications for Fasciotomy?

Answer 3

• Clinical signs of compartment syndrome
• Arterial perfusion already interrupted for 4 hours
• (Diastolic pressure - intracompartment pressure) = <30mmHg

Question 4

Types of Emergency Fasciotomy? what care should be taken?

Answer 4

Postural-medial incision

Postural-medial incision: Superficial and deep posterior compartments released

Lateral incision: release of anterior and lateral compartment

Additional care should be taken to avoid the Superficial Fibular Nerve!!

Question 5

Patella subluxation vs. dislocation

Answer 5

Question 6

Q angle or Quadriceps angle between genders?

Answer 6

Females have a larger Q angle than Males!!

Patellar dislocations MOST COMMON in teenage females

Question 7

Name for traction apophysitis of the tibial tuberosity?

Answer 7

Osgood Schlatter Disease

Often seen w/ Teenage boys due to SHORT RECTUS FEMORIS MUSCLE

repeated eccentric contraction of quads is risk factor (football)

Question 8

What is the “unhappy triad” of Knee Injury?

Answer 8

Vulgus injury (Leg deviate away from midline)

Tear of:

• Tibial Collateral Ligament
• Medial Meniscus
• Anterior Cruciate Ligament

Question 9

Answer 9

Question 10

Mechanisms of posterior cruciate ligament injury?

Answer 10

Posterior crucial ligaments function: minimizes translation backward

Attached to medial condyle in posterior aspect of the tibia

Damage via hyperextension and twisting movements

Question 11

What are Pelegrini Stieda lesions?

Answer 11

Pellegrini-Stieda lesions are ossified post-traumatic lesions at (or near) the medial collateral ligament

Question 12

What to check in patient with Fractured Head of Fibula?

Answer 12

Must check Common Fibular nerve in incidence of fractured head of Fibula