Knee Sports MCQs

During a medial patellofemoral ligament (MPFL) reconstruction in a 16-year-old female with recurrent patellar dislocations, the surgeon identifies the anatomic femoral attachment site using fluoroscopy. Where is this anatomic attachment located relative to the medial femoral epicondyle and adductor tubercle?

A 55-year-old patient experiences a sudden pop in the posterior knee while descending stairs. MRI confirms a complete posterior root tear of the medial meniscus. What is the most significant biomechanical consequence of this specific injury if left untreated?

An 8-year-old male (Tanner stage 1) sustains a complete midsubstance anterior cruciate ligament (ACL) tear while skiing. He has significant subjective instability and giving way with daily activities. What is the most appropriate surgical treatment option to minimize the risk of growth arrest?

A 45-year-old male presents with acute medial knee pain and a "pop" felt while deep squatting. MRI reveals a medial meniscal posterior root tear with 4 mm of meniscal extrusion. If left untreated, this injury alters knee biomechanics most similarly to which of the following?

A 45-year-old active female feels a "pop" in her posterior knee while descending stairs. MRI shows medial meniscus extrusion of 4 mm and a radial cleft at the posterior horn root. What are the biomechanical consequences of this specific injury if left untreated?

A 16-year-old female experiences an acute lateral patellar dislocation while dancing, which spontaneously reduces. MRI demonstrates a complete, isolated tear of the medial patellofemoral ligament (MPFL). At what anatomical location does the MPFL most frequently tear in acute, primary patellar dislocations?

A 28-year-old male presents with knee pain after sustaining a blow to the anteromedial tibia. Physical examination reveals a positive dial test showing 15 degrees of increased external rotation at 30 degrees of knee flexion compared to the contralateral knee. At 90 degrees of flexion, the external rotation normalizes to match the uninjured side. Which structure(s) is/are injured?

A 19-year-old elite female soccer player undergoes primary anterior cruciate ligament (ACL) reconstruction. Which of the following clinical scenarios is considered the strongest indication for adding a concomitant lateral extra-articular tenodesis (LET) or anterolateral ligament (ALL) reconstruction?

A 24-year-old professional football player sustains an acute ACL tear. MRI also demonstrates an avulsion of the posterior horn of the lateral meniscus directly from its tibial root attachment. If left completely untreated, the biomechanical consequence of this meniscal injury most closely mimics that of:

A 45-year-old active male presents with acute medial knee pain after a deep squat. MRI reveals a complete radial tear at the posterior root of the medial meniscus with 4 mm of meniscal extrusion. What is the primary biomechanical consequence if this injury is left untreated?

A 30-year-old female skier sustains a high-energy knee dislocation. Examination reveals absent ACL, PCL, and posterolateral corner (PLC) function. She has palpable but slightly diminished distal pulses. Which of the following is the most crucial step in her immediate post-injury management prior to any operative planning?

A 24-year-old football player complains of posterior knee pain and instability. Examination demonstrates a positive posterior drawer test and increased external rotation of the tibia at both 30 and 90 degrees of knee flexion compared to the uninjured side. What is the most likely diagnosis?

A 16-year-old female dancer has recurrent lateral patellar dislocations. Her tibial tubercle-trochlear groove (TT-TG) distance is measured at 22 mm on MRI. She has normal patellar height. Which surgical procedure addresses her specific anatomic risk factor?

A 22-year-old soccer player has a symptomatic 3.5 cm^2 full-thickness chondral defect on the weight-bearing surface of the medial femoral condyle. He has failed conservative management. Which cartilage restoration technique is most appropriate?

An 8-year-old girl presents with a painless clicking and popping sound in her knee during extension. MRI reveals an abnormally thickened meniscus. The Wrisberg variant of this specific condition is characterized by the absence of which of the following stabilizing structures?

A 10-year-old girl with widely open physes sustains a mid-substance anterior cruciate ligament (ACL) tear. Surgical reconstruction is planned. To minimize the risk of physeal arrest, particularly at the distal femur and proximal tibia, which technique is most appropriate?