Question 6901
Topic: Knee SportsCorrect Answer & Explanation
. Type I collagen
Practice Set 346 of 360
This practice set contains high-yield board review questions covering key concepts in 5. Sports Medicine. Each clinical scenario is designed to test your diagnostic and management skills relevant to this subspecialty.
. Type I collagen
Which of the following structures is considered the primary static stabilizer to external tibial rotation at 30 degrees of knee flexion?
. Popliteofibular ligament
The 'horn blower's sign' (Patte's test) is used during a physical examination to evaluate the integrity of which of the following rotator cuff muscles?
. Teres minor
During an anterior cruciate ligament (ACL) reconstruction, the surgeon elects to drill the femoral tunnel independently through an anteromedial (AM) portal rather than using a transtibial technique. Which of the following is the primary biomechanical advantage of the AM portal technique?
. Improved rotational stability
A 24-year-old overhead athlete undergoes surgical stabilization for recurrent anterior shoulder instability. The surgeon performs a 'Remplissage' procedure to address a large, engaging Hill-Sachs defect. This procedure involves the capsulotenodesis of which structure into the humeral defect?
. Infraspinatus tendon
A 45-year-old active male presents with medial compartment knee osteoarthritis and varus malalignment. He is being considered for a high tibial osteotomy (HTO). Which of the following preoperative clinical findings is generally considered an absolute contraindication for performing an HTO?
. A flexion contracture of 20 degrees
A 24-year-old rugby player undergoes evaluation for recurrent anterior shoulder instability. Advanced imaging reveals a large 'engaging' Hill-Sachs lesion and a glenoid bone loss measured at 28%. What is the most appropriate surgical intervention?
. Latarjet procedure (coracoid transfer)
Following an anterior cruciate ligament (ACL) reconstruction using a bone-patellar tendon-bone autograft, the graft undergoes a multi-phase biologic incorporation process. During which phase is the graft mechanically at its weakest?
. Revascularization and cellular proliferation phase (6-12 weeks)
During the physical examination of a 22-year-old athlete, the Dial test demonstrates 15 degrees of increased external rotation at 30 degrees of knee flexion compared to the contralateral side, but symmetric external rotation at 90 degrees. Which structure is most likely injured?
. Posterolateral corner (PLC) only
A 22-year-old baseball pitcher presents with posterior shoulder pain during the late cocking phase of throwing. MRI arthrogram reveals a 'peel-back' lesion of the superior labrum. What is the primary pathophysiologic mechanism of internal impingement in this athlete?
. Contact between the greater tuberosity and the posterosuperior glenoid
When comparing freeze-dried (lyophilized) cortical allograft to fresh-frozen cortical allograft, which of the following statements is true regarding the freeze-dried allograft?
. It elicits a weaker host immune response
During an anterior cruciate ligament (ACL) reconstruction using a bone-patellar tendon-bone autograft, the surgeon inadvertently places the femoral tunnel too anteriorly. What is the most likely clinical consequence of this technical error?
. Tightness of the graft in flexion causing loss of flexion
A 22-year-old football player with recurrent anterior shoulder dislocations is found to have 25% bipolar bone loss (glenoid and Hill-Sachs lesion). Which of the following is the most appropriate surgical intervention?
. Latarjet procedure
Which of the following is an inherent biomechanical advantage of using a bone-patellar tendon-bone (BPTB) autograft over a quadruple-stranded hamstring autograft for anterior cruciate ligament (ACL) reconstruction?
. Bone-to-bone healing within the osseous tunnels
A 22-year-old professional soccer player sustains a severe knee injury involving rupture of the anterior cruciate ligament (ACL), posterior cruciate ligament (PCL), and posterolateral corner (PLC). He undergoes staged surgical reconstruction of all ligaments. Which of the following is the most critical factor to consider when determining his readiness for return to professional-level sports?
. Psychological readiness and absence of fear of re-injury.
A 25-year-old soccer player sustains a twisting knee injury. On 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?
. Popliteofibular ligament
A 19-year-old soccer player undergoes arthroscopy for a bucket-handle medial meniscus tear located in the red-white zone. What is the primary source of blood supply to the peripheral menisci?
. Medial and lateral inferior genicular arteries
A 22-year-old rugby player undergoes preoperative evaluation for recurrent anterior shoulder instability. A 3D-CT scan reveals a large Hill-Sachs lesion. Based on the 'glenoid track' concept, what specific feature categorizes his Hill-Sachs lesion as 'engaging' (off-track)?
. Its medial margin extends medial to the established glenoid track
A 28-year-old athlete tears his medial meniscus. An MRI demonstrates the tear is limited to the peripheral 10% of the meniscus, an area known for having excellent healing potential due to its vascularity. This peripheral 'red-red' zone receives its direct vascular supply from the perimeniscal capillary plexus, which originates from the:
. Medial and lateral inferior genicular arteries
A 22-year-old female collegiate soccer player undergoes anterior cruciate ligament (ACL) reconstruction using a bone-patellar tendon-bone (BPTB) autograft. Compared to a hamstring autograft, the BPTB autograft is most closely associated with an increased incidence of which of the following postoperative complications?
. Anterior knee pain