Knee Sports MCQs

During an anterior cruciate ligament (ACL) reconstruction, the surgeon inadvertently places the femoral tunnel too anteriorly in the intercondylar notch. Which of the following kinematic abnormalities will most likely result?

In Posterior Cruciate Ligament (PCL) anatomy, which of the following statements accurately describes the biomechanical function of its bundles?

The healing potential of the anterior cruciate ligament (ACL) is notoriously poor. Which of the following arteries provides the primary blood supply to the native ACL?

The medial patellofemoral ligament (MPFL) is the primary restraint to lateral patellar translation at 0 to 30 degrees of knee flexion. Which of the following best describes the anatomical femoral attachment of the MPFL?

The anterior cruciate ligament (ACL) is composed of two primary functional bundles. Which of the following best describes the specific biomechanical roles and tensioning patterns of the anteromedial (AM) and posterolateral (PL) bundles during knee range of motion?

A 14-year-old male soccer player presents with chronic anterior knee pain and occasional mechanical catching. Radiographs and MRI confirm a stable osteochondritis dissecans (OCD) lesion. Statistically, what is the most common anatomical location for an OCD lesion in the knee?

During an anatomical reconstruction of the posterolateral corner (PLC) of the knee, accurate tunnel placement is critical. Which of the following accurately describes the femoral attachment site of the fibular collateral ligament (FCL)?

Following an anterior cruciate ligament (ACL) reconstruction, a patient complains of a loss of terminal knee extension. A sagittal MRI reveals the tibial tunnel is positioned significantly anterior to the Blumensaat line with the knee in full extension. What is the most likely complication associated with this tunnel malposition?

An 18-year-old soccer player sustains a severe twisting injury to his knee. Radiographs reveal a small, elliptic bone fragment avulsed from the lateral aspect of the proximal tibia just distal to the articular surface. This pathognomonic finding is most commonly associated with which primary ligamentous injury, and what anatomical structure does the bony fragment represent?

During the physical examination of a patient with a suspected multiligamentous knee injury, varus stress testing at 30 degrees of knee flexion demonstrates significant gapping. Which anatomical structure is the primary static restraint preventing this displacement?

A 24-year-old athlete sustains a twisting injury to his left knee. Physical examination reveals a positive Dial test with 15 degrees of increased external rotation at 30 degrees of knee flexion compared to the contralateral side. At 90 degrees of knee flexion, the external rotation is equal bilaterally. This examination finding is most consistent with an isolated injury to which of the following structures?

A 25-year-old athlete sustains a twisting injury to the knee. On physical examination, the Dial test reveals 15 degrees of increased external rotation at 30 degrees of knee flexion compared to the uninjured side, but symmetric external rotation at 90 degrees of knee flexion. Which of the following structures is most likely injured?

A 25-year-old soccer player sustains a knee injury. On physical examination, the Dial test shows 15 degrees of increased external rotation at 30 degrees of knee flexion compared to the contralateral side, but symmetric external rotation at 90 degrees. What structure is primarily injured?

In posterior cruciate ligament (PCL) reconstruction, the tibial inlay technique is often advocated over the transtibial tunnel technique. What is the primary biomechanical advantage of the tibial inlay technique?

A 22-year-old football player sustains a multi-ligament knee injury. A dial test is performed. There is 15 degrees of increased external rotation at 30 degrees of knee flexion compared to the contralateral side, but symmetric external rotation at 90 degrees of knee flexion. This physical examination finding is indicative of an isolated injury to which of the following?

A 24-year-old football player sustains a complex knee injury. Physical examination reveals an isolated increase in external rotation of 15 degrees compared to the contralateral knee at 30 degrees of knee flexion, but symmetrical external rotation at 90 degrees of flexion. Which of the following structures is most likely injured?

In the biomechanics of the native human knee, 'femoral rollback' is the posterior translation of the femoral condyles on the tibial plateau during deep knee flexion, which prevents premature impingement of the posterior distal femur against the posterior tibial margin. This motion is primarily driven by tension in which of the following structures?

A 25-year-old male sustains a twisting knee injury during a rugby match. On physical examination, the dial test reveals 20 degrees of increased external rotation of the tibia compared to the contralateral leg when the knee is flexed to 30 degrees. However, when the knee is flexed to 90 degrees, the external rotation is symmetric bilaterally. This physical exam finding is most consistent with an isolated injury to which structure(s)?

A 45-year-old female undergoes an MRI of the knee which reveals a complete radial tear at the posterior root of the medial meniscus, associated with 4 mm of meniscal extrusion. Biomechanically, this root injury alters knee joint loading in a manner most equivalent to which of the following?