Knee Sports MCQs

During a posterior cruciate ligament (PCL) reconstruction, the surgeon aims to anatomically reconstruct the anterolateral (AL) bundle. Which of the following accurately describes the tensioning pattern of the native AL bundle of the PCL?

A 22-year-old female skier sustains a twisting injury to her knee. Radiographs reveal a small avulsion fracture of the lateral tibial plateau (Segond fracture). This radiographic finding is pathognomonic for a concomitant injury to which of the following structures?

A 24-year-old athlete sustains a knee injury. On examination, the dial test reveals increased external rotation of the tibia compared to the contralateral side at 30 degrees of knee flexion, but symmetrical external rotation at 90 degrees of knee flexion. This examination finding is most indicative of an isolated injury to which of the following structures?

A 22-year-old soccer player presents with a recurrent knee effusion and instability 4 months after an anterior cruciate ligament (ACL) reconstruction with bone-patellar tendon-bone autograft. What is the most common cause of early failure (within 6 months) following ACL reconstruction?

The posterior cruciate ligament (PCL) is composed of two primary functional bundles. In which position of the knee is the anterolateral (AL) bundle of the PCL at its maximum tension?

A 28-year-old football player sustains a severe varus and hyperextension injury to his knee, resulting in a posterolateral corner (PLC) injury. Post-injury, he complains of numbness over the dorsum of his foot and an inability to dorsiflex his ankle. Which nerve is most likely injured?

The anterior cruciate ligament (ACL) is anatomically composed of two bundles named for their tibial insertion sites. Which bundle is primarily responsible for rotational stability and is tightest in knee extension?

A 25-year-old rugby player falls directly onto his flexed right knee. Examination reveals a positive posterior drawer test at 90 degrees of flexion. The dial test demonstrates 20 degrees of increased external rotation at 30 degrees of flexion, and 25 degrees of increased external rotation at 90 degrees of flexion compared to the contralateral knee. Which structures are injured?

A 26-year-old male presents for a revision ACL reconstruction. Preoperative CT scan demonstrates extensive femoral and tibial tunnel osteolysis, with both tunnels measuring 16 mm in diameter. What is the most appropriate next step in management?

During an anterior cruciate ligament (ACL) reconstruction, the surgeon inadvertently places the femoral tunnel too anteriorly (shallow) in the intercondylar notch. What is the most likely biomechanical consequence of this tunnel malposition?

Which of the following correctly describes the tensioning pattern of the native posterior cruciate ligament (PCL) bundles during knee range of motion?

A 28-year-old male sustains a traumatic knee injury. On physical examination, the dial test is performed. The examiner notes 15 degrees of increased external rotation of the tibia compared to the contralateral leg at 30 degrees of flexion, and 20 degrees of increased external rotation at 90 degrees of flexion. This finding is most indicative of:

During a physical examination of a patient with a suspected posterolateral corner (PLC) injury, the clinician applies a varus stress to the knee at 30 degrees of flexion. Which specific anatomic structure is the primary restraint to this applied force?

The anterior cruciate ligament (ACL) is composed of two distinct bundles. Which of the following best describes the biomechanical function of the posterolateral (PL) bundle?

A 25-year-old soccer player sustains a twisting injury to his knee. Physical examination reveals a positive Dial test with 15 degrees of increased external rotation compared to the contralateral knee at 30 degrees of flexion, but no side-to-side difference at 90 degrees of flexion. Which of the following structures is most likely injured?

When performing a posterior cruciate ligament (PCL) reconstruction using an open tibial inlay technique, the surgeon must be mindful of the popliteal artery. During the posterior approach, between which two muscle intervals is the popliteal neurovascular bundle typically protected?

A 19-year-old female basketball player feels a "pop" in her knee while pivoting. Plain radiographs demonstrate an elliptic bone fragment adjacent to the lateral tibial plateau. This finding is highly associated with an injury to which of the following structures?

Which of the following structures is considered the primary static stabilizer to varus stress of the knee at 30 degrees of flexion?

During an anterior cruciate ligament (ACL) reconstruction, the femoral tunnel is inadvertently placed anterior to the anatomic footprint. What is the expected postoperative complication resulting from this technical error?