5. Sports Medicine MCQs

A 28-year-old volleyball player presents with isolated weakness in external rotation of the shoulder. MRI reveals a paralabral cyst. Compression of the involved nerve at the spinoglenoid notch will selectively denervate which of the following muscles?

A patient is undergoing reconstruction of the posterolateral corner (PLC) of the knee. Which of the following structures constitutes the primary static stabilizer to external tibial rotation at 30 degrees of knee flexion?

To avoid iatrogenic injury during placement of the anterolateral portal for ankle arthroscopy, the surgeon must be aware of the path of the superficial peroneal nerve. On average, where does this nerve pierce the deep crural fascia to become subcutaneous?

A surgeon is executing a posterior approach to the shoulder. The superficial dissection interval is between the deltoid and the teres minor. The deep internervous plane separates which two muscles?

A 30-year-old baseball pitcher presents with vague posterior shoulder pain and deltoid weakness. MRI reveals isolated atrophy of the teres minor. Which of the following anatomic boundaries defines the quadrilateral space through which the affected nerve passes?

A patient undergoes surgical reconstruction of the posterolateral corner (PLC) of the knee. The surgeon reconstructs the popliteofibular ligament, which originates from the popliteus musculotendinous junction and inserts onto the fibular styloid. What is its primary biomechanical role?

A 45-year-old patient presents postoperatively with profound isolated weakness in shoulder external rotation following a massive rotator cuff repair. Electromyography reveals denervation of the infraspinatus with normal supraspinatus function. At what anatomical site is the suprascapular nerve most likely entrapped?

A 28-year-old overhead athlete presents with vague posterior shoulder pain and deltoid weakness. MRI reveals isolated atrophy of the teres minor. Compression in the quadrilateral space is suspected. What are the correct anatomical boundaries of this space?

A patient has isolated weakness in external rotation of the shoulder but demonstrates normal active abduction. An MRI reveals a paralabral cyst. In which anatomical location is the cyst most likely compressing the affected nerve?

A surgeon is reconstructing the posterolateral corner of the knee. The fibular collateral ligament (FCL) and the popliteus tendon (PT) both insert on the lateral femoral epicondyle. What is the spatial relationship of the FCL footprint relative to the PT footprint on the femur?

A 28-year-old overhead throwing athlete presents with posterior shoulder pain and teres minor atrophy on MRI. Entrapment of the axillary nerve in the quadrilateral space is suspected. What are the boundaries of this anatomical space?

A surgeon is reconstructing the medial patellofemoral ligament (MPFL) for recurrent patellar instability. Anatomically, the femoral origin of the native MPFL is located in a saddle-like depression between which two osseous landmarks?

A 32-year-old volleyball player presents with isolated weakness in external rotation of the shoulder. MRI reveals a paralabral cyst compressing a nerve at the spinoglenoid notch. Which physical examination finding corresponds to this specific level of entrapment?

The posterolateral corner (PLC) of the knee provides primary restraint to varus stress and posterolateral rotation. Which of the following structures is considered one of the three major static stabilizers of the PLC?

What fibers of the anterior cruciate ligament tighten with extension of the knee?

Figure 51 shows an arthroscopic view of the patellofemoral joint from an inferolateral portal. The arrow points to which of the following structures?

A 45-year-old overhead athlete presents with deep posterior shoulder pain and weakness in external rotation. Abduction strength is symmetric. MRI reveals a paralabral cyst. The cyst is most likely located in which of the following anatomic locations?

A 24-year-old athlete sustains a posterolateral corner (PLC) knee injury. Surgical reconstruction involves repairing the structure that inserts onto the fibular head and is the primary restraint to varus opening at 30 degrees of knee flexion. What is this structure?

A surgeon is performing a posterolateral corner reconstruction of the knee and must drill tunnels for the anatomic femoral attachments of the fibular collateral ligament (FCL) and the popliteus tendon. What is the typical anatomic relationship of the popliteus femoral footprint relative to the FCL footprint?

A 28-year-old overhead athlete presents with isolated weakness in shoulder external rotation. Abduction is full and painless. Magnetic resonance imaging reveals a paralabral cyst. Compression of the nerve at which of the following locations is most likely responsible for this specific physical examination finding?