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Question 1

Anterior Leg Compartment

Answer 1

Dorsiflexion
Deep peroneal (fibular) nerve (L4-S2)
Anterior tibial Artery and Vein, Changes name to dorsalis pedis artery after cross ankle

1. Tibialis anterior- helps to support the medial arch of the foot
   O: proximal, lateral tibia and interosseus membrane
   I: medial cuneiform, base of first metatarsal
   Action: dorsiflexion and inversion
2. Extensor Hallucis Longus-
   O: medial fibula and interosseus membrane
   I: base of distal phalanx of great toe (dorsal surface)
   Action: great toe extension and ankle dorsiflexion
3. Extensor digitorum longus-
   O: proximal half of fibula, lateral tibial condyle
   I: distal and middle phalanges of digits 2-5
   A: extends digits 2-5, ankle dorsiflexion, weak eversion
4. Fibularis tertius-
   O: distal fibula
   I: base of fifth metatarsal
   A: dorsiflexion and eversion

Question 2

Lateral Compartment of the Leg

Answer 2

Action: ankle eversion, weak plantar flexion
Innervation: superficial peroneal (fibular) n. (L5-S2)
Blood supply: perforating branches from anterior tibial and peroneal (fibular) arteries, doesn’t have its own artery

1. Peroneus (fibularis) longus- helps support the medial arch
   O: proximal, lateral fibula
   I: plantar surface of base of 1st metatarsal and medial cuneiform
   A: eversion, weak plantarflexion
2. Peroneus (fibularis) brevis- distal attachment is common site for avulsion fracture
   O: distal 2/3 of lateral fibula
   I: base of 5th metatarsal
   A: eversion, weak plantar flexion

Question 3

MSK History

Answer 3

Age
Sex
Hand dominance if upper extremity complaint 
Complaint 
Onset: traumatic vs. atraumatic 
Length of symptoms
Getting worse/better
Pain: sharp/dull
What makes it better/ worse
Pain at rest/night
Neurological complaints
What treatments have they done

Question 4

Physical Examination of the MSK Patient

Answer 4

1. Inspection
   A: Skin changes- swelling, erythema, ecchymosis
   B: Muscle atrophy- chronic or neurogenic issue
   C: Deformity: dislocations, malunions of fractures
2. Palpation: localized/diffuse pain, pulse, fractures
3. Range of Motion
   A: loss of AROM if painful, tendon disruption, neuro probs
   B: loss of active/passive ROM if mechanical block
4. Strength testing: neurologic, tendon disruption, pain, and disuse lead to loss of strength
5. Special testing

Question 5

Useful joints to check for complaints

Answer 5

Check neck if shoulder pain

Check back/lumbar when looking at hip

Check hip if knee pain