OCS Sports Medicine & Athletic Injuries 3

Question 1

A basketball player sustains an inversion ankle sprain. Which ligament is most commonly injured in a lateral ankle sprain?

Accepted Answer

Anterior talofibular ligament (ATFL)

Answer

The ATFL is the weakest and most commonly injured lateral ankle ligament, typically sprained by a combination of plantarflexion and inversion forces.

Question 2

Which criterion is most commonly used to guide return-to-sport clearance following ACL reconstruction?

Accepted Answer

Limb symmetry index ≥90% on quadriceps strength and hop testing

Answer

A limb symmetry index (LSI) of ≥90% on quadriceps strength testing and functional hop tests is a widely used evidence-based benchmark before return-to-sport after ACL reconstruction.

Question 3

A competitive swimmer presents with anterior shoulder pain and weakness on resisted abduction and external rotation at 90 degrees. The most likely diagnosis is:

Accepted Answer

Rotator cuff tendinopathy with subacromial impingement

Answer

Overhead athletes commonly develop rotator cuff tendinopathy and subacromial impingement due to repetitive overhead motion; the pattern of weakness in abduction and external rotation implicates the supraspinatus and infraspinatus.

Question 4

Which classification system is used to grade acromioclavicular (AC) joint injuries based on the degree of ligamentous disruption and clavicle displacement?

Accepted Answer

Rockwood classification

Answer

The Rockwood classification (Types I–VI) is the current standard for grading AC joint injuries, expanding on Allman's original three-grade system to include posterior and inferior clavicular displacements.

Question 5

A runner develops medial tibial stress syndrome (shin splints). Which initial conservative intervention is most appropriate?

Accepted Answer

Relative rest, activity modification, and load management

Answer

The first-line treatment for medial tibial stress syndrome is relative rest with reduction of high-impact loading, combined with cross-training, biomechanical assessment, and gradual return to running.

(OCS) Orthopedic Certified Specialist Practice Test

(OCS) Orthopedic Certified Specialist Practice Test

OCS Sports Medicine & Athletic Injuries 3