Knee Sports MCQs

During an anterior cruciate ligament (ACL) reconstruction, a surgeon places the femoral tunnel excessively anterior (shallow) in the intercondylar notch. What biomechanical consequence will this have on the graft during knee range of motion?

During an anterior cruciate ligament (ACL) reconstruction using a bone-patellar tendon-bone (BTB) autograft, which component represents the weakest link of the graft construct during the first 6 weeks postoperatively?

During an anterior cruciate ligament (ACL) reconstruction, the femoral tunnel is inadvertently placed too far anteriorly. What is the most likely biomechanical consequence of this technical error?

A 25-year-old athlete sustains a twisting injury to the knee. Physical examination demonstrates a positive Dial test with more than 10 degrees of increased external rotation at 30 degrees of knee flexion, but symmetrical external rotation at 90 degrees of knee flexion. What does this indicate?

During anterior cruciate ligament (ACL) reconstruction, understanding the anatomy of the native bundles is crucial. Which of the following accurately describes the primary function of the anteromedial (AM) bundle of the ACL?

A 35-year-old male complains of medial knee joint line catching. The examiner stands the patient on the affected leg, flexes the knee to 20 degrees, and asks the patient to internally and externally rotate their body over the knee. This maneuver reproduces the medial pain. What is the name of this test, and what is its primary purpose?

A patient with a complex knee injury demonstrates greater than 10 degrees of increased external rotation at BOTH 30 degrees and 90 degrees of knee flexion during the Dial test, compared to the contralateral side. This specific examination finding indicates combined injury to which structures?

During an evaluation of a 22-year-old soccer player with a knee injury, a pivot shift test is performed. As the knee is brought from extension to flexion with a valgus stress and internal rotation applied, a clunk is felt at 20-30 degrees of flexion. Which anatomical structure is responsible for the reduction of the tibia during this test?

A 24-year-old male presents with medial joint line knee pain. The examiner has the patient stand on the affected leg flexed to 20 degrees, and the patient twists their body internally and externally. This maneuver (Thessaly test) is primarily utilized to diagnose injury to which structure?

A 22-year-old athlete sustains a twisting knee injury. On examination, a Dial test reveals 15 degrees of increased external tibial rotation at 30 degrees of knee flexion compared to the contralateral knee, but symmetric rotation at 90 degrees of flexion. This isolated finding indicates an injury to which structure(s)?

A 22-year-old soccer player sustains a non-contact twisting injury to his left knee. Radiographs in the emergency department reveal an avulsion fracture of the lateral aspect of the proximal tibia (Segond fracture). In addition to an anterior cruciate ligament (ACL) rupture, which of the following capsuloligamentous structures is specifically avulsed to create this fracture?

What is the most common anatomic location for Osteochondritis Dissecans (OCD) lesions in the knee?

A 45-year-old female presents with acute medial knee pain after a deep squatting maneuver. MRI reveals a complete radial tear of the posterior horn root of the medial meniscus with 5 mm of medial meniscal extrusion. Biomechanically, the complete loss of the posterior root attachment leads to which of the following intra-articular consequences?

In a cruciate-retaining (CR) total knee arthroplasty, the posterior cruciate ligament (PCL) is preserved. During normal knee flexion, what is the primary biomechanical function of an intact PCL?

During an anterior cruciate ligament (ACL) reconstruction, the surgeon identifies the two bundles of the native ACL. When does the posterolateral (PL) bundle experience its maximum tension?

A 50-year-old female presents with acute medial knee pain after a deep squat. MRI reveals a complete radial tear of the posterior root of the medial meniscus. Biomechanically, this specific injury alters joint contact pressures in a manner equivalent to which of the following?

A 32-year-old skier sustains a Schatzker Type II tibial plateau fracture (split-depression of the lateral plateau). Which associated intra-articular injury is most commonly encountered and must be addressed during surgical management?

During an anterior cruciate ligament (ACL) reconstruction, the surgeon evaluates the femoral footprint. The ACL consists of two functional bundles. Which of the following statements accurately describes the biomechanical role of the ACL bundles?

A 24-year-old professional soccer player undergoes ACL reconstruction. During arthroscopy, the surgeon evaluates the posterior compartments using a 70-degree arthroscope through the intercondylar notch. A longitudinal tear at the meniscocapsular junction of the posterior horn of the medial meniscus is identified. This lesion was not clearly visualized on the standard sagittal MRI sequences. What is the most likely biomechanical consequence if this lesion is left untreated?