MOI

Question 1

What is MOI of lateral ankle sprain

Answer 1

Forced PF + IN

Question 2

What is MOI of medial (deltoid) ligament

Answer 2

EV + external rotation

Question 3

What is MOI of syndesmosis

Answer 3

Forceful external rotation of foot and ankle

Question 4

What is MOI of peroneal tendinopathy

Answer 4

Forceful DF of ankle and hind foot inversion with contraction of peroneals

Question 5

What is MOI of medial tibial stress syndrome

Answer 5

Overuse injury

Question 6

What is MOI of plantar fasciitis

Answer 6

Overuse injury occurring as a result of tight calves, high arch, changing running technique

Question 7

What is MOI of Achilles tendinopathy

Answer 7

Overuse from excessive jumping activities or trauma from direct blow

Question 8

What is MOI of ACL sprain

Answer 8

When foot is planted and the knee locks and twists or pivots due to change of direction

Question 9

What is MOI of pcl strain

Answer 9

When blow occurs on ant. Aspect of prox tibia when knee is flexed. Also hyperextension and rotational stress mechanisms

Question 10

What is MOI of mcl sprain

Answer 10

Direct blow to outside of knee or excessive outward twist when foot is planted on the ground

Question 11

What is MOI of meniscus damage

Answer 11

Rotational force. A Varys or callus force directed to a flexed knee

Question 12

What is MOI of distal hamstring tendinopathy

Answer 12

Stress placed on tendon due to increase in training and repetitive knee flexion

Question 13

What is MOI of pes anserinus bursitis

Answer 13

Overuse of tendons which attach below inner surface of knee or a direct blow to pes anserinus region

Question 14

What is MOI of patella tendinopathy

Answer 14

Aggravated by loading and increase demand on knee extensor musculature

Question 15

What is MOI of patella femoral pain syndrome

Answer 15

Inward movement of knee during squat and trauma to kneecap e.g. dislocation or fracture

Question 16

What is MOI of ITB syndrome

Answer 16

Running on slope for long periods of time and other aspects of overuse injuries from running incorrectly

Question 17

What is MOI of adductor strain

Answer 17

Sudden change of direction and sudden acceleration in sprinting. Less common is jumping and overstretching

Question 18

What is MOI of quadriceps contusion

Answer 18

Direct blow to quad causing significant muscle damage (rupture)

Question 19

What is MOI of proximal hamstring tendinopathy

Answer 19

Overuse inflammation injury from running and other exercises, tendon gets compressed during hip flexion and adduction

Question 20

What is MOI of labral tear in hip

Answer 20

Shearing forces that occur with twisting, pivoting and falling or direct trauma e.e. Motor vehicle

Question 21

What is MOI of piriformis syndrome

Answer 21

Fall or blow on butt region and lack of exercise leading to tightness

Question 22

What is MOI of greater trochanter bursitis

Answer 22

Injury to point of hip eg. Falling or overuse activities

Question 23

What is MOI of shoulder impingement

Answer 23

Decrease in space @ end of collar bone, overuse in overhead position

Question 24

What is MOI of should dislocation

Answer 24

Blow to abducted & externally rotated & extended arm

Question 25

What is the MOI of shoulder instability

Answer 25

Can result from repetitive movements overhead & a traumatic mech can be from frank dislocations where joint integrity is lost

Question 26

What is the MOI of long head of bicep Tendinopathy

Answer 26

Degeneration of tendon from exercises requiring overheard motion or from ageing process

Question 27

What is the MOI of rotator cuff Tendinopathy

Answer 27

Overuse injury from excess load on rotator cuff muscles and repetitive movements

Question 28

What is the MOI of slap lesion

Answer 28

Falling on outstretched arm where there is superior compression and a traction injury in inferior direction

Question 29

What is the MOI of pectoralis tear

Answer 29

Direct injury due to direct injury or extreme muscle tension

Question 30

What is the MOI of bicep rupture

Answer 30

Unanticipated loading of tendon when bicep muscle is contracting but elbow is rapidly straightened e.g. When heavy object is caught

Question 31

What is the MOI of flexor tendinopathy (golfers elbow)

Answer 31

Repeated forceful wrist flexion and pronation

Question 32

What is the MOI of extensor tendinopathy (tennis elbow)

Answer 32

Overuse of muscles and tendons of forearm with repetitive contractions can strain elbow tendon

Question 33

What is the MOI of olecranon bursitis

Answer 33

Hard blow to tip of elbow can cause bursa to produce fluid and swell. Also leaning on elbow for long time can cause bursa to swell too

Question 34

What is the MOI of elbow dislocation

Answer 34

Fall on outstretched hand (FOOSH) with elbow in extension upon impact

Question 35

What is the MOI of elbow mcl sprain

Answer 35

When elbow is valgus or laterally directed force exceeding the tensile properties of mcl

Question 36

What is the MOI of Colles fracture

Answer 36

Secondary fall on outstretched hand (foosh) with pronates forearm in dorsiflexion

Question 37

What is the MOI of scaphoid fracture

Answer 37

FOOSH causing a hyperextension force on the wrist

Question 38

What is the MOI of dequervians tenosynovitis

Answer 38

Due to thickening of synovial sheath containing extensor policies breves and abductor pollicis longs tendons which leads to irritation

Question 39

What is the MOI of triangular fibrocartilage complex tear

Answer 39

FOOSH with hand in pronated or palm down position. Tear occurs when force is high through ulnar side of hyperextended wrist

Question 40

What is the MOI of mallet finger

Answer 40

Sudden flexion of the DIP joint with resistance force directed along the long axis of the finger. Leads to terminal extensor tendon tear

Question 41

What is the MOI of boutonnière deformity

Answer 41

Forceful blow to the top side of a bent middle joint of a finger. Also caused by cut on top of finger which can sever the central tendon from its attachment to bone

Question 42

What is the MOI of carpal tunnel

Answer 42

Repetitive movement of wrist or trauma which can cause swelling leading to pressure being placed on the nerve and when compressed nerve doesn’t work effectively