MCL, LCL Sprain, Pronator, CuTS,

Question 1

What is froment’s sign

Answer 1

Thumb IP flexion by FPL (AIN) to compensate for loss of MCP flexion by adductor pollicis (ulnar n.) during key pinch

Question 2

What nerves do the ligament of struthers, arcade of struthers and arcade of frohse impinge?

Answer 2

Ligament of struthers = Median nerve
Arcade of struthers = ulnar nerve
Arcade of frohse = radial nerve (PIN)

Question 3

When can patient return to play after MCL injury

Answer 3

After full ROM is regained, usually 3-6 months. If pain after 6 months, refer to surgery

Question 4

What is the usual mechanism that causes an LCL sprain

Answer 4

Dislocation of elbow

Question 5

MCL sprain is most likely to occur during what phase of throwing

Answer 5

Acceleration phase of throwing

Question 6

Tears in what muscles are associated with an MCL sprain

Answer 6

Pronators and flexors

Question 7

What nerve is affected in pronator syndrome

Answer 7

Median nerve

Question 8

What part of the MCL is affected in an MCL sprain?

Answer 8

The anterior band

Question 9

Which band of the MCL is the strongest and most significant stabilizer to valgus stress

Answer 9

The anterior band

Question 10

What is wartenberg sign

Answer 10

Seen in CuTS where you can’t adduct 5th finger fully due to weak ulnar innervated interossei and lumbricals

Question 11

In pronator syndrome, what motion aggravates the pain

Answer 11

Pronation of forearm

Question 12

What is the first ligament that fails after an elbow dislocation

Answer 12

LCL

Question 13

How do you examine the MCL of the elbow?

Answer 13

Flex the elbow to 20-30º and apply valgus stress

Question 14

In pronator syndrome, what are the possible structures that may be compressing the median nerve?

Answer 14

1. Ligament of struthers
2. Pronator teres
3. 2 heads of FDS
4. Bicipital aponeurosis

Question 15

What 2 provocative tests are used to test the LCL

Answer 15

1. Varus stress test

2. Lateral pivot shift test