OCS Rehabilitation & Therapeutic Interventions 5

Question 1

Which criterion is used to determine safe return to sport after ACL reconstruction using the limb symmetry index (LSI)?

Accepted Answer

≥90% LSI on hop tests and strength testing

Answer

A limb symmetry index of ≥90% on functional hop tests and isokinetic strength testing is the established criterion for safe return to sport after ACL reconstruction.

Question 2

A patient presents with carpal tunnel syndrome confirmed by EMG. Which conservative intervention has the strongest evidence for symptom reduction?

Accepted Answer

Wrist splinting in neutral position at night

Answer

Neutral wrist splinting, especially worn at night, is well-supported by evidence to reduce median nerve compression and alleviate carpal tunnel syndrome symptoms.

Question 3

Which muscle action characterizes an open kinetic chain exercise?

Accepted Answer

The distal segment moves freely against resistance

Answer

In open kinetic chain exercises the distal segment (e.g., foot or hand) moves freely, such as seated knee extension, allowing isolated single-joint loading.

Question 4

A therapist performs soft tissue mobilization to the iliotibial band to treat lateral knee pain. Which physiological mechanism primarily explains the immediate pain relief observed?

Accepted Answer

Gate control theory via stimulation of large-diameter mechanoreceptors

Answer

Soft tissue mobilization provides immediate analgesia primarily through gate control, where mechanoreceptor afferent input inhibits nociceptive transmission at the spinal cord level.

Question 5

Which parameter distinguishes a Mulligan mobilization with movement (MWM) from a standard Maitland mobilization?

Accepted Answer

The patient performs active movement while the therapist applies a sustained accessory glide

Answer

In Mulligan MWM the clinician applies a painless, sustained accessory joint glide while the patient simultaneously performs the previously painful active movement.

(OCS) Orthopedic Certified Specialist Practice Test

(OCS) Orthopedic Certified Specialist Practice Test

OCS Rehabilitation & Therapeutic Interventions 5