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Question 3341

Topic: Shoulder & Hip Sports

A 32-year-old recreational skier presents with anterior shoulder instability. Imaging shows an engaging Hill-Sachs lesion and 10 percent anterior glenoid bone loss. Which of the following is the most appropriate surgical intervention?

. Arthroscopic Bankart repair with remplissage
. Isolated arthroscopic Bankart repair
. Open Latarjet procedure
. Arthroscopic subscapularis repair
. Open capsular shift

Correct Answer & Explanation

. Arthroscopic Bankart repair with remplissage


Explanation

For patients with subcritical glenoid bone loss (less than 20 percent) but an engaging or off-track Hill-Sachs lesion, an arthroscopic Bankart repair combined with a remplissage effectively prevents engagement and restores stability. A remplissage involves tenodesing the infraspinatus into the humeral defect.

Question 3342

Topic: 5. Sports Medicine

A 14-year-old male with wide-open physes sustains a midsubstance ACL tear. Which of the following graft choices and techniques minimizes the risk of growth arrest?

. Bone-patellar tendon-bone autograft via transphyseal drilling
. Iliotibial band autograft via an over-the-top extra-articular reconstruction
. Quadrupled hamstring autograft via large transphyseal drilling
. Achilles tendon allograft via transphyseal drilling
. Synthetic graft augmentation

Correct Answer & Explanation

. Iliotibial band autograft via an over-the-top extra-articular reconstruction


Explanation

In a young patient with significant remaining growth (wide-open physes), physeal-sparing techniques, such as an iliotibial band over-the-top extra-articular reconstruction, are recommended to avoid crossing the physes and causing growth arrest.

Question 3343

Topic: Shoulder & Hip Sports

When performing an arthroscopic Bankart repair, the anteroinferior labrum is mobilized and repaired. The suture anchors should ideally be placed at which location to maximize biomechanical stability?

. On the glenoid rim, recreating the labral bumper
. 5 mm medial to the glenoid rim on the anterior neck
. At the 12 o'clock position only
. On the posterior capsular margin
. In the center of the glenoid articular surface

Correct Answer & Explanation

. On the glenoid rim, recreating the labral bumper


Explanation

Suture anchors for a Bankart repair must be placed directly on the glenoid rim or slightly onto the articular face to recreate the labral bumper. Placing them medially on the anterior neck (ALPSA position) fails to restore the native capsulolabral tension.

Question 3344

Topic: Knee Sports

A patient undergoes PCL reconstruction utilizing an inlay technique for tibial fixation. This approach specifically minimizes the risk of which of the following complications compared to a transtibial tunnel technique?

. Popliteal artery injury during drilling
. Anterior knee pain
. Killer turn graft abrasion
. Saphenous nerve neuritis
. Loss of full extension

Correct Answer & Explanation

. Killer turn graft abrasion


Explanation

The tibial inlay technique secures the bone block directly to the posterior tibia, avoiding the acute angle (the killer turn) that the graft must negotiate when passed through a transtibial tunnel. This reduces the risk of graft abrasion and attenuation.

Question 3345

Topic: Knee Sports

A 24-year-old male sustains a knee injury resulting in a dimple sign on the medial joint line with valgus stress. MRI reveals an MCL tear with the distal end of the superficial MCL displaced superficial to the pes anserinus. What is this lesion called, and what is its clinical significance?

. Segond fracture; indicates an ACL tear
. Stener-like lesion; requires surgical repair due to lack of healing potential
. Pellegrini-Stieda lesion; typically resolves with conservative care
. ODonoghues triad; requires simultaneous ACL and MCL reconstruction
. Reverse Segond fracture; indicates a PCL tear

Correct Answer & Explanation

. Stener-like lesion; requires surgical repair due to lack of healing potential


Explanation

A Stener-like lesion of the knee occurs when the distal end of the superficial MCL flips superficial to the pes anserinus. This displacement prevents anatomic reduction and healing, necessitating operative repair or reconstruction.

Question 3346

Topic: Shoulder & Hip Sports

A 20-year-old gymnast presents with multidirectional shoulder instability. She has failed 6 months of supervised physical therapy. An examination under anesthesia demonstrates 3+ inferior translation and a positive sulcus sign. What is the preferred surgical treatment?

. Open Latarjet procedure
. Arthroscopic capsular plication and inferior capsular shift
. Arthroscopic thermal capsulorrhaphy
. Arthroscopic SLAP repair
. Arthroscopic posterior labral repair

Correct Answer & Explanation

. Arthroscopic capsular plication and inferior capsular shift


Explanation

When nonoperative management fails in multidirectional instability, an arthroscopic or open inferior capsular shift/plication is the treatment of choice to reduce capsular volume. Thermal capsulorrhaphy is obsolete due to high failure rates and the risk of chondrolysis.

Question 3347

Topic: 5. Sports Medicine

During an ACL reconstruction using a bone-patellar tendon-bone autograft, a non-displaced fracture of the distal patellar pole occurs intraoperatively while harvesting the bone plug. What is the most appropriate management?

. Abandon the procedure and cast for 6 weeks
. Fix the fracture with lag screws and proceed with the same patellar autograft
. Fix the fracture with tension band wiring or screws and use an alternative graft
. Resect the distal pole of the patella and repair the patellar tendon
. Ignore the fracture and proceed, relying on postoperative bracing

Correct Answer & Explanation

. Fix the fracture with tension band wiring or screws and use an alternative graft


Explanation

An intraoperative patellar fracture during graft harvest should be stabilized internally. The surgeon should then abandon the patellar tendon harvest from that knee and select an alternative graft, such as a hamstring or allograft, to complete the ACL reconstruction.

Question 3348

Topic: Shoulder & Hip Sports

A 25-year-old professional rugby player presents with recurrent anterior shoulder dislocations. CT imaging reveals 28% glenoid bone loss and an engaging Hill-Sachs lesion. Which of the following is the most appropriate surgical management?

. Arthroscopic Bankart repair alone
. Arthroscopic Bankart repair with Remplissage
. Open Latarjet procedure
. Open inferior capsular shift
. Humeral head hemiarthroplasty

Correct Answer & Explanation

. Open Latarjet procedure


Explanation

Glenoid bone loss greater than 20-25% in the setting of recurrent anterior instability is considered critical bone loss. Soft tissue stabilization alone has unacceptably high failure rates, making a bony augmentation procedure like the Latarjet the treatment of choice.

Question 3349

Topic: 5. Sports Medicine

A 22-year-old female presents 6 months after an uncomplicated anterior cruciate ligament (ACL) reconstruction with a bone-patellar tendon-bone autograft. She complains of an inability to fully straighten her knee and an audible clunk at terminal extension. What is the most likely etiology?

. Cyclops lesion
. Posterior cruciate ligament contracture
. Infrapatellar contracture syndrome
. Graft failure
. Loose body in the posterior compartment

Correct Answer & Explanation

. Cyclops lesion


Explanation

A Cyclops lesion is a localized fibroproliferative nodule located anterior to the ACL graft. It classically causes a mechanical block to terminal extension and a palpable or audible clunk, requiring arthroscopic excision.

Question 3350

Topic: Knee Sports

During a posterior cruciate ligament (PCL) reconstruction, the surgeon evaluates the native anatomy to properly place the graft bundles. Which of the following statements regarding the normal biomechanics of the PCL is correct?

. The anterolateral bundle is tight in flexion.
. The posteromedial bundle is tight in flexion.
. Both the anterolateral and posteromedial bundles are tight in extension.
. The anteromedial bundle is the primary restraint to posterior translation in extension.
. The posterolateral bundle is the largest and most critical component.

Correct Answer & Explanation

. The posteromedial bundle is tight in flexion.


Explanation

The PCL consists of two main bundles: the larger anterolateral (AL) bundle and the smaller posteromedial (PM) bundle. The AL bundle tightens in flexion, while the PM bundle tightens in extension.

Question 3351

Topic: Knee Sports

A 30-year-old male sustains a traumatic knee injury. On examination, a Dial test is performed. There is 15 degrees of increased external rotation at 30 degrees of knee flexion compared to the contralateral side, but symmetric external rotation at 90 degrees of flexion. This finding is most indicative of:

. Isolated PCL injury
. Isolated ACL injury
. Isolated Posterolateral Corner (PLC) injury
. Combined PCL and PLC injury
. Combined ACL and PLC injury

Correct Answer & Explanation

. Isolated Posterolateral Corner (PLC) injury


Explanation

The Dial test is utilized to differentiate isolated PLC injuries from combined PCL/PLC injuries. Asymmetry of >10 degrees of external rotation at 30 degrees of flexion, but not at 90 degrees, indicates an isolated PLC injury.

Question 3352

Topic: Shoulder & Hip Sports

A 45-year-old male presents with a locked posterior shoulder dislocation following a seizure. CT scan reveals a reverse Hill-Sachs lesion involving 35% of the humeral head articular surface. What is the most appropriate surgical intervention?

. Closed reduction and sling immobilization
. Arthroscopic posterior Bankart repair
. Open reduction and transfer of the lesser tuberosity into the defect
. Humeral head resurfacing
. Total shoulder arthroplasty

Correct Answer & Explanation

. Open reduction and transfer of the lesser tuberosity into the defect


Explanation

A reverse Hill-Sachs defect involving 20-40% of the articular surface is generally treated with a modified McLaughlin procedure (transfer of the lesser tuberosity and subscapularis into the defect). Defects >40% typically require arthroplasty.

Question 3353

Topic: 5. Sports Medicine

A 9-year-old female soccer player (Tanner stage 1) sustains a midsubstance ACL tear. The family wishes to proceed with surgical intervention. Which of the following techniques minimizes the risk of premature physeal closure?

. Transphyseal bone-patellar tendon-bone autograft
. Transphyseal hamstring autograft
. Extraphyseal iliotibial band tenodesis
. Primary repair with suture anchor fixation
. Anterolateral ligament reconstruction alone

Correct Answer & Explanation

. Extraphyseal iliotibial band tenodesis


Explanation

In prepubescent patients with wide open physes (Tanner stages 1 and 2), physeal-sparing techniques like the modified MacIntosh (extraphyseal iliotibial band over-the-top technique) are recommended. Transphyseal drilling carries a significant risk of growth arrest.

Question 3354

Topic: 5. Sports Medicine

A 21-year-old collegiate baseball pitcher presents with vague posterior shoulder pain and decreased throwing velocity. MRI arthrogram reveals a Type II SLAP lesion. After a failed 4-month course of focused physical therapy, the most appropriate surgical treatment is:

. Biceps tenodesis
. Biceps tenotomy
. Arthroscopic SLAP repair
. Debridement of the superior labrum
. Open capsular shift

Correct Answer & Explanation

. Arthroscopic SLAP repair


Explanation

For young, high-demand overhead athletes like collegiate pitchers with a Type II SLAP lesion, arthroscopic repair of the superior labrum remains the preferred treatment. Biceps tenodesis is typically reserved for older patients or revision settings.

Question 3355

Topic: Knee Sports

A 19-year-old collegiate football player sustains an isolated Grade II PCL tear based on physical examination and MRI. What is the best initial management strategy?

. Immediate single-bundle PCL reconstruction
. Immediate double-bundle PCL reconstruction
. Hinged brace locked in extension followed by physical therapy emphasizing quadriceps strengthening
. Physical therapy emphasizing hamstring strengthening
. Cylinder cast immobilization for 6 weeks

Correct Answer & Explanation

. Hinged brace locked in extension followed by physical therapy emphasizing quadriceps strengthening


Explanation

Isolated Grade I and II PCL tears are generally treated non-operatively with excellent functional results. Initial management includes bracing in extension to prevent posterior tibial sag, followed by therapy emphasizing quadriceps strengthening to dynamically stabilize the tibia.

Question 3356

Topic: Knee Sports
A 35-year-old male is evaluated in the trauma bay following a high-velocity knee dislocation (KD-III). He has absent active foot eversion and dorsiflexion, as well as decreased sensation over the dorsum of the foot. Injury to which of the following ligamentous structures is most highly associated with this neurologic deficit?
. Anterior cruciate ligament
. Posterior cruciate ligament
. Medial collateral ligament
. Posterolateral corner
. Patellar tendon

Correct Answer & Explanation

. Posterolateral corner


Explanation

Common peroneal nerve injuries occur in up to 15-30% of knee dislocations and are most closely associated with posterolateral corner (PLC) disruptions. The nerve's anatomic course around the fibular neck makes it vulnerable to traction during severe varus or hyperextension injuries.

Question 3357

Topic: Shoulder & Hip Sports

Following an open Latarjet procedure for recurrent anterior shoulder instability, a patient complains of new-onset numbness along the lateral aspect of the forearm and weakness in elbow flexion. Which nerve was most likely injured during the coracoid transfer?

. Axillary nerve
. Musculocutaneous nerve
. Radial nerve
. Median nerve
. Ulnar nerve

Correct Answer & Explanation

. Musculocutaneous nerve


Explanation

The musculocutaneous nerve typically penetrates the coracobrachialis 3 to 8 cm distal to the coracoid process. It is at significant risk of traction or iatrogenic injury during coracoid osteotomy and retraction in the Latarjet procedure.

Question 3358

Topic: Shoulder & Hip Sports

A 20-year-old male undergoes an MR arthrogram for recurrent anterior shoulder instability. The radiologist notes an intact anterior periosteal sleeve with the anterior labrum medially displaced and healed to the glenoid neck. This pathoanatomy is best described as a:

. Classic Bankart lesion
. ALPSA lesion
. GLAD lesion
. Perthes lesion
. HAGL lesion

Correct Answer & Explanation

. ALPSA lesion


Explanation

An Anterior Labroligamentous Periosteal Sleeve Avulsion (ALPSA) lesion occurs when the anterior labrum strips off the glenoid and heals medially along the neck with an intact periosteum. It requires adequate lateral mobilization during arthroscopic repair.

Question 3359

Topic: Knee Sports

A patient is evaluated 1 year after an ACL reconstruction. The Lachman test is negative, but a pivot shift test is prominently positive. Radiographs demonstrate that the femoral tunnel is positioned at the 12 o'clock position in the coronal plane. This tunnel placement primarily fails to control which biomechanical force?

. Anterior translation
. Posterior translation
. Varus opening
. Rotational stability
. Valgus opening

Correct Answer & Explanation

. Rotational stability


Explanation

A vertical femoral tunnel (e.g., 12 o'clock position) in ACL reconstruction successfully limits sagittal plane translation, resulting in a negative Lachman test. However, it fails to restore rotational stability, yielding a persistent pivot shift.

Question 3360

Topic: Shoulder & Hip Sports

An 18-year-old athlete with recurrent anterior shoulder instability has a normal-appearing anterior labrum on MRI. However, a "J-sign" is noted on the MR arthrogram, showing fluid extravasation into the axillary pouch. Which of the following lesions is most likely present?

. HAGL lesion
. ALPSA lesion
. SLAP lesion
. Engaging Hill-Sachs lesion
. Rotator interval tear

Correct Answer & Explanation

. HAGL lesion


Explanation

A Humeral Avulsion of the Glenohumeral Ligament (HAGL) causes anterior instability in the absence of a Bankart lesion. It is classically identified on MR arthrography by a "J-sign" where contrast leaks into the axillary pouch through the lateral capsular defect.