Knee Sports MCQs

During the evaluation of a patient with a suspected multiligamentous knee injury, the examiner performs a 'quadriceps active test.' The knee is positioned at 90 degrees of flexion with the foot flat on the table, and the patient is asked to slide the foot forward against resistance. An anterior shift of the tibia is observed. This finding indicates a deficiency of which structure?

A 25-year-old football player sustains a direct blow to the anteromedial aspect of his knee. Physical examination reveals increased external rotation of the tibia at 30 degrees of knee flexion, but symmetric rotation at 90 degrees when compared to the contralateral side. Which structure is most likely injured?

A 16-year-old male gymnast presents with anterior knee pain, swelling, and episodic catching. Radiographs and MRI confirm osteochondritis dissecans (OCD) of the knee. What is the most common anatomical location for this lesion?

In evaluating a failed ACL reconstruction, it is noted that the femoral tunnel was placed vertically (at the 12 o'clock position) in the intercondylar notch. Which of the following physical examination findings is most likely directly attributable to this specific technical error?

A 28-year-old male sustained a multiligament knee injury. Examination reveals a foot drop and decreased sensation over the dorsal aspect of his foot. Which specific ligamentous injury pattern is most highly associated with this neurological deficit?

The anteromedial (AM) and posterolateral (PL) bundles of the anterior cruciate ligament (ACL) have distinct biomechanical roles. Which of the following statements is true regarding the PL bundle?

Biomechanical studies have shown that a medial meniscus posterior root tear alters knee joint contact pressures most similarly to which of the following conditions?

Which of the following structures is considered the primary static restraint to lateral patellar translation at 20 degrees of knee flexion?

A patient with a suspected posterolateral corner (PLC) injury undergoes the Dial test. The test reveals greater than 10 degrees of increased external rotation compared to the contralateral knee at 30 degrees of flexion, but normal and symmetric external rotation at 90 degrees. This finding suggests:

In the evaluation of a traumatic multi-ligament knee injury, the presence of a 'dimple sign' on the medial joint line typically indicates which of the following?

During an arthroscopic anterior cruciate ligament (ACL) reconstruction, the surgeon evaluates the native ACL footprint. The anteromedial (AM) bundle of the ACL is primarily responsible for providing:

A 19-year-old female presents with recurrent patellar dislocation. Lateral knee radiographs reveal a Caton-Deschamps index of 1.4. This radiographic finding indicates the presence of:

Following a direct blow to the proximal tibia with the knee flexed, a patient demonstrates a positive posterior drawer test. The posterior cruciate ligament (PCL) consists of two bundles. Which bundle is typically the tightest in knee flexion?

Which of the following clinical tests is considered the most specific for diagnosing an anterior cruciate ligament (ACL) tear?

The rapid and significant pain relief observed following a successful vertebroplasty is primarily attributed to mechanical stabilization of the microfractures and:

According to the Thoracolumbar Injury Classification and Severity (TLICS) score, which of the following patients has an absolute indication for surgical intervention?

A 35-year-old construction worker falls from a height and sustains a burst fracture of L1. Neurological examination is completely normal. Which of the following radiographic findings would be an absolute indication for surgical stabilization rather than conservative management?

A 13-year-old boy presents with vague anterior knee pain. Radiographs demonstrate an osteochondritis dissecans (OCD) lesion. What is the most common anatomic location for this lesion in the knee?