Knee Sports MCQs

A 17-year-old female soccer player sustains a noncontact deceleration injury to her knee, accompanied by a 'pop'.

Which of the following is an established intrinsic skeletal risk factor for this specific ligamentous injury?

A 30-year-old male presents with knee pain after a dashboard injury. Physical examination reveals increased external tibial rotation of 15 degrees at 30 degrees of knee flexion, but symmetric external rotation at 90 degrees compared to the normal knee. Which structure is most likely injured?

A 25-year-old gymnast presents with recurrent lateral patellar instability. An MRI indicates a torn medial patellofemoral ligament (MPFL). During surgical reconstruction, where should the femoral tunnel be placed anatomically?

A 28-year-old professional skier sustains a multi-ligamentous knee injury.

During surgical reconstruction of the posterolateral corner (PLC), an anatomic reconstruction technique is chosen. Which three primary structures must be addressed to restore stability to the PLC?

Improper tunnel placement is a frequent cause of anterior cruciate ligament (ACL) reconstruction failure. What is the primary kinematic consequence of placing the femoral tunnel too anteriorly?

A 45-year-old active male presents with acute posterior knee pain and a palpable 'pop' while deep squatting. MRI reveals a complete medial meniscus posterior root tear. Left untreated, the biomechanical consequences of this injury are most equivalent to which of the following?

The medial patellofemoral ligament (MPFL) provides the primary soft-tissue restraint to lateral patellar translation at which range of knee flexion?

A rugby player is tackled with a blow to the anteromedial tibia. Exam reveals increased varus laxity at 30 degrees of knee flexion but normal varus stability at 0 degrees. The dial test shows increased external rotation at 30 degrees, but it is symmetric to the contralateral side at 90 degrees. Which structures are most likely injured?

A 27-year-old male presents to the ER following a traumatic knee dislocation during a football game. The knee spontaneously reduced prior to arrival. An ankle-brachial index (ABI) is calculated to be 0.8. What is the next most appropriate step in management?

A 21-year-old female presents with recurrent lateral patellar dislocations. An axial CT scan measures a tibial tubercle-trochlear groove (TT-TG) distance of 24 mm. Which procedure should be included in her definitive surgical plan to correct this specific pathomechanics?

A 55-year-old female sustains an acute posterior root tear of the medial meniscus. Biomechanically, if left untreated, this injury most closely approximates the tibiofemoral contact pressures seen in which of the following scenarios?

A 28-year-old male sustains a twisting injury to his knee. On physical examination, the Dial test reveals 20 degrees of increased external rotation of the tibia compared to the contralateral side at 30 degrees of knee flexion, but symmetric rotation is noted at 90 degrees of knee flexion. This finding is most consistent with an isolated injury to the:

A 28-year-old motorcyclist sustains a dashboard injury to his knee. The dial test demonstrates 15 degrees of increased external rotation of the tibia compared to the contralateral side at 90 degrees of knee flexion, but symmetrical external rotation at 30 degrees. Which structure is most likely injured?

A 30-year-old male presents with a multi-ligamentous knee injury following a high-energy trauma. Physical examination reveals an abnormal dial test at both 30 and 90 degrees of knee flexion. Which of the following nerve injuries is most commonly associated with this specific structural injury pattern?

A 42-year-old female experiences a sudden "pop" in her posterior knee while squatting. MRI reveals a posterior root tear of the medial meniscus. If left untreated, this injury biomechanically behaves most similarly to which of the following?

A 26-year-old male undergoes ACL reconstruction and a concurrent peripheral longitudinal tear of the medial meniscus is repaired. The healing rate of this meniscal repair is enhanced compared to an isolated meniscal repair primarily due to:

During a posterolateral corner (PLC) reconstruction of the knee, the surgeon must be acutely aware of the anatomy to avoid iatrogenic injury. Which nerve is at the greatest risk during the surgical approach and lateral dissection for a PLC reconstruction?

A 29-year-old male sustains an isolated posterior cruciate ligament (PCL) tear after a dashboard injury. If nonoperative management is chosen, physical therapy should primarily focus on strengthening which muscle group to restrict posterior tibial translation?