Knee Sports MCQs

A 29-year-old male is undergoing arthroscopic-assisted ACL reconstruction following a knee dislocation. The surgeon is preparing to pass the graft through the femoral and tibial tunnels. The image below depicts a common technique for graft fixation during this procedure. Based on the image and the case description, what is the primary purpose of the structure being fixed in the femoral tunnel?

A 33-year-old active duty military personnel sustains a multi-ligamentous knee injury (ACL, PCL, and MCL tears) during a training exercise. After successful reduction and confirmation of vascular integrity, the orthopedic surgeon discusses the timing of definitive ligament reconstruction. According to current literature and guidelines, what is the most common approach regarding the timing of multi-ligament knee reconstruction?

A 30-year-old professional dancer presents with a 5-year history of progressive pain and stiffness in her right great toe, significantly impacting her career. She has failed all conservative measures. Radiographs show moderate dorsal osteophytes, mild joint space narrowing, and a focal osteochondral lesion on the metatarsal head, consistent with Coughlin and Shurnas Grade 2-3. She is highly motivated to preserve motion. Based on the case, which surgical approach, potentially combined with cheilectomy, would be most appropriate for this patient?

A 2-year-old child with fibular hemimelia is being evaluated for lower extremity reconstruction versus amputation. Along with the fibular absence and limb length discrepancy, which of the following knee ligament anomalies is most commonly associated with this condition?

A 2-year-old child presents with a foreshortened leg, absent lateral digits, and an anteromedial bow of the tibia. Which of the following knee anomalies is most universally associated with this patient's underlying diagnosis?

Which of the following describes the anatomical structure primarily responsible for providing a 'rotary stability' to the knee, especially against external tibial rotation in a valgus stress?

A 25-year-old male undergoes an anterior cruciate ligament (ACL) reconstruction using a bone-patellar tendon-bone autograft. Postoperatively, he lacks full knee flexion but easily achieves full extension. The surgeon suspects malpositioning of the femoral tunnel. Where was the femoral tunnel most likely placed?

A 27-year-old soccer player sustains a PCL injury after falling onto a flexed knee. On examination, there is a slight sag and posterior translation of the tibia less than one centimeter. The initial management of this isolated PCL injury should primarily emphasize:

A 28-year-old male presents with persistent loss of terminal extension six months after an anterior cruciate ligament (ACL) reconstruction. Lateral radiographs reveal that the entire tibial tunnel is positioned entirely anterior to Blumensaat's line when the knee is in full extension. Which of the following complications is most likely causing his loss of motion?

A patient complains of severe knee stiffness and an inability to flex the knee past 80 degrees following an ACL reconstruction. Intraoperative notes and postoperative imaging confirm that the femoral tunnel was drilled significantly anterior (high) to the anatomic footprint. What is the kinematic consequence of this technical error?

The posterior cruciate ligament (PCL) is the primary restraint to posterior tibial translation and is composed of two distinct functional bundles. Which of the following best describes their biomechanical behavior during knee motion?

A 25-year-old athlete sustains a twisting injury to the knee. On physical examination, the dial test demonstrates a 15-degree increase in external rotation compared to the uninjured contralateral knee at 30 degrees of flexion. At 90 degrees of flexion, the external rotation is symmetric bilaterally. What is the most likely injury pattern?

Which bundle of the posterior cruciate ligament (PCL) is tightest in deep knee flexion?

A patient presents with a knee injury. The dial test shows 15 degrees of increased external rotation at 30 degrees of knee flexion compared to the contralateral side, but symmetric rotation at 90 degrees. What is the most likely diagnosis?

A 45-year-old female sustains a medial meniscus posterior root tear. Biomechanically, the loss of hoop stresses in this condition is most equivalent to which of the following?

A patient presents with a painful lack of terminal knee extension 4 months following an ACL reconstruction. MRI demonstrates a nodular mass in the anterior intercondylar notch. What is the histologic composition of this mass?

The classic, most common anatomic location for an osteochondritis dissecans (OCD) lesion of the knee is the:

During an ACL reconstruction, placing the tibial tunnel too far anteriorly most commonly leads to which of the following complications?

If the femoral tunnel during an ACL reconstruction is placed too far anteriorly (shallow) in the intercondylar notch, what resulting kinematic mismatch will occur?