Knee Sports MCQs

The integrity of the posterior root of the medial meniscus is critical because its avulsion effectively leads to:

A 26-year-old rugby player presents after an awkward fall onto his left knee. Radiographs and MRI, as shown in the provided image, reveal cortical disruption at the PCL insertion with a displaced avulsed fragment. What is the most appropriate initial surgical management for this specific injury?

During a single-bundle ACL reconstruction on a right knee, the examiner emphasizes the importance of anatomical and isometric tunnel placement. Based on the principles discussed in the case, what is the optimal clock face position for the femoral tunnel to replace the posterolateral bundle?

A surgeon performing a single-bundle ACL reconstruction places the femoral tunnel too anteriorly, on the "resident's ridge." According to the case discussion, what is the most likely clinical consequence of this technical error?

During an arthroscopic ACL reconstruction, after careful assessment, the surgeon notes that abnormally narrow intercondylar notch correlates with increased incidence of ACL tears. If impingement on the lateral femoral condyle is identified despite correct tunnel placement, what additional surgical step is indicated according to the case?

A 21-year-old female soccer player undergoes primary anterior cruciate ligament (ACL) reconstruction. During the healing process, the graft requires a robust blood supply to properly undergo ligamentization. What is the primary arterial supply to the native ACL?

A 19-year-old male presents to the emergency department after a twisting injury to his knee while skiing. MRI confirms an acute, isolated rupture of the anterior cruciate ligament (ACL). Which of the following meniscal injuries is statistically most likely to be associated with this acute tear?

A 17-year-old female presents with recurrent lateral patellar dislocations. An MPFL (medial patellofemoral ligament) reconstruction is planned. To ensure isometric graft function, the femoral tunnel must be placed at Schottle's point. Where is this point located radiographically?

A patient presents with posterolateral knee pain and instability after a hyperextension 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 rotation at 90 degrees of flexion. Which structure is most likely injured?

A 55-year-old female undergoes MRI of the knee showing a complete radial tear adjacent to the posterior root attachment of the medial meniscus. If left untreated, the biomechanical consequence of this specific tear is most equivalent to which of the following?

A 16-year-old female requires medial patellofemoral ligament (MPFL) reconstruction for recurrent lateral patellar dislocations. Intraoperative fluoroscopy is used to determine the anatomic femoral attachment of the MPFL (Schottle's point). Where is this point located radiographically?

A 25-year-old athlete sustains a direct blow to the anteromedial tibia. Examination reveals 15 degrees of increased external rotation of the tibia compared to the contralateral side at both 30 degrees and 90 degrees of knee flexion. Which of the following injury patterns is most likely present?

During reconstruction of the medial patellofemoral ligament (MPFL) for recurrent patellar instability, the femoral attachment must be anatomically placed to avoid altering joint kinematics. Where is the native femoral origin of the MPFL located?

An 18-year-old skier sustains a twisting injury to the knee. An AP radiograph demonstrates a small vertical avulsion fracture of the lateral tibial plateau. Which of the following intra-articular injuries is most highly associated with this radiographic finding?

A 9-year-old boy (Tanner stage 1) sustains a complete anterior cruciate ligament (ACL) tear. He experiences recurrent instability despite bracing and physical therapy. What is the most appropriate surgical option?

A surgeon is performing an anterior cruciate ligament (ACL) reconstruction using a soft tissue graft. Which type of screw is most commonly used for femoral or tibial fixation of the graft and why?

A 21-year-old football player sustains a non-contact pivoting injury to his knee. MRI reveals an isolated complete tear of the anterior cruciate ligament (ACL). When planning an anatomic reconstruction, the surgeon must identify the native femoral footprint of the ACL. Where is this located?

A 35-year-old collegiate football player sustains a knee injury during a game, characterized by a direct blow to the proximal tibia with the knee flexed, resulting in a posterior knee dislocation (Schenck KD II). After successful reduction, the knee demonstrates significant posterior sag and a positive posterior drawer test. Additionally, a varus stress test at 30 degrees of flexion reveals significant laxity, and a positive dial test at 30 and 90 degrees of flexion is noted. Based on this clinical presentation, which of the following structures is MOST likely to be involved in addition to the PCL?

During a multi-ligament knee reconstruction for a chronic posterior knee dislocation, the surgeon is performing a PCL reconstruction using an allograft. To ensure proper graft tensioning and prevent posterior sag, at what knee position and with what maneuver should the PCL graft be tensioned?

A 38-year-old recreational athlete is undergoing rehabilitation after a multi-ligament knee reconstruction, including a PCL reconstruction. During the initial maximum protection phase (weeks 0-6), which of the following exercises or activities should be MOST strictly avoided to protect the PCL graft?