Knee Sports MCQs

A patient presents with knee pain and instability after a hyperextension injury. The Dial test demonstrates 20 degrees of increased external rotation on the injured side compared to the normal side at 30 degrees of flexion, but equal external rotation at 90 degrees of flexion. What is the most likely injury?

In posterior cruciate ligament (PCL) reconstruction, the 'killer turn' refers to the acute angle the graft makes at the posterior aspect of the tibia. What is the primary theoretical advantage of the tibial inlay technique over the transtibial technique?

During an anatomical reconstruction of the posterolateral corner (PLC) of the knee, a surgeon intends to reconstruct the three major static stabilizing structures. Which of the following combinations represents these structures?

A 19-year-old female soccer player undergoes revision ACL reconstruction. The surgeon decides to perform a lateral extra-articular tenodesis (LET) using a modified Lemaire technique. Where is the graft typically routed in relation to the lateral collateral ligament (LCL) to provide optimal rotational stability?

A 28-year-old active male presents with a symptomatic 4 cm^2 focal full-thickness chondral defect on the weight-bearing surface of the medial femoral condyle with minimal subchondral bone involvement. He previously underwent a microfracture procedure 2 years ago that failed. Which of the following cartilage restoration procedures is most appropriate?

A 30-year-old male is evaluated for knee instability. On physical examination, the dial test shows 15 degrees of increased external rotation at 30 degrees of flexion compared to the contralateral side, but symmetric rotation at 90 degrees of flexion. Which structure(s) is/are most likely injured?

During reconstruction of the posterior cruciate ligament (PCL), the surgeon aims to recreate its primary biomechanical bundles. Which of the following best describes the tensioning pattern of the normal PCL bundles during knee range of motion?

A 45-year-old active male with medial compartment osteoarthritis and varus alignment undergoes a medial opening wedge high tibial osteotomy (HTO). If the osteotomy gap is opened disproportionately more anteriorly than posteriorly, what biomechanical effect will this have on the knee?

A 7-year-old boy presents with a painless clunking sensation in his lateral knee during extension. MRI confirms a complete Wrisberg variant discoid lateral meniscus. What anatomical feature defines the Wrisberg variant of a discoid meniscus?

The predominant vascular supply to the anterior cruciate ligament (ACL) is derived from which of the following arteries?

A 28-year-old male sustains a multiligament knee injury. Physical examination reveals a +3 posterior drawer test and a positive dial test at both 30 and 90 degrees of flexion. Which combination of injured structures is most likely responsible for these findings?

A 22-year-old soccer player undergoes arthroscopic repair of a bucket-handle medial meniscus tear. Which of the following factors most significantly increases the biological healing rate of the meniscal repair?

A 12-year-old male presents with chronic anterior knee pain. Radiographs and an MRI

demonstrate a stable osteochondritis dissecans (OCD) lesion. What is the most common anatomical location for an OCD lesion of the knee?

A 6-year-old girl presents with a painless clicking and "snapping" sensation in her lateral knee with extension. MRI confirms a discoid lateral meniscus. The Wrisberg variant of a discoid meniscus causes this hypermobility due to the absence of which of the following normal anatomical structures?

A 28-year-old male sustains a varus-hyperextension injury to his knee. Examination reveals a positive dial test at 30 degrees of knee flexion, but symmetric external rotation at 90 degrees compared to the contralateral knee. Which of the following structures is most likely injured?

A 24-year-old male undergoes arthroscopy for an acute ACL rupture. The surgeon evaluates the posterior horn of the medial meniscus through the intercondylar notch and identifies a ramp lesion. Biomechanically, untreated ramp lesions in the setting of ACL reconstruction primarily increase which of the following?

A 30-year-old male sustains a posterior dashboard injury to his knee. Physical examination reveals a 12-mm posterior step-off of the tibia relative to the femoral condyles at 90 degrees of flexion. The dial test shows 20 degrees of increased external rotation at both 30 and 90 degrees of knee flexion compared to the contralateral side. Which structures are injured?

A 21-year-old female presents with recurrent lateral patellar instability. MRI demonstrates a normal trochlear groove, but her tibial tubercle-trochlear groove (TT-TG) distance is measured at 24 mm. Which of the following surgical interventions is most appropriate?