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Question 3521

Topic: Shoulder & Hip Sports

A 45-year-old manual laborer presents with persistent shoulder pain. MRI confirms a Type II SLAP tear. After failing conservative management, surgical intervention is planned. To minimize the risk of post-operative stiffness and reoperation in this demographic, what is the preferred procedure?

. Arthroscopic SLAP repair
. Arthroscopic biceps tenodesis
. Biceps tenotomy without tenodesis
. Subacromial decompression alone
. Arthroscopic posterior capsular release

Correct Answer & Explanation

. Arthroscopic biceps tenodesis


Explanation

In patients older than 40, primary biceps tenodesis yields better clinical outcomes, higher satisfaction, and lower reoperation rates compared to arthroscopic SLAP repair for Type II lesions.

Question 3522

Topic: Shoulder & Hip Sports

A 22-year-old competitive rugby player presents with recurrent anterior shoulder instability. A 3D CT scan reveals 28% bone loss of the anterior/inferior glenoid. Which surgical procedure is most appropriate?

. Arthroscopic Bankart repair
. Arthroscopic Bankart repair with Remplissage
. Coracoid transfer (Latarjet procedure)
. Open Bankart repair and inferior capsular shift
. Arthroscopic superior capsular reconstruction

Correct Answer & Explanation

. Coracoid transfer (Latarjet procedure)


Explanation

Anterior glenoid bone loss greater than 20-25% (critical bone loss) is an indication for a bony augmentation procedure, such as the Latarjet procedure. Soft tissue repairs alone have an unacceptably high failure rate in this setting.

Question 3523

Topic: Shoulder & Hip Sports

A 45-year-old manual laborer presents with a massive, irreparable posterosuperior rotator cuff tear. Examination reveals an intact subscapularis and deltoid, but he has significant weakness in active external rotation and forward elevation. Which of the following tendon transfers is the most appropriate surgical treatment to restore function?

. Pectoralis major transfer
. Latissimus dorsi transfer
. Serratus anterior transfer
. Rhomboid major transfer
. Levator scapulae transfer

Correct Answer & Explanation

. Latissimus dorsi transfer


Explanation

Latissimus dorsi transfer is indicated for young, active patients with massive, irreparable posterosuperior cuff tears (supraspinatus and infraspinatus) who have an intact subscapularis and deltoid. It helps restore active external rotation and forward elevation.

Question 3524

Topic: Shoulder & Hip Sports

A 22-year-old competitive rugby player with a history of recurrent anterior shoulder dislocations undergoes advanced imaging. A 3D CT scan reveals a 28% anterior glenoid bone defect. What is the most appropriate definitive surgical intervention?

. Arthroscopic Bankart repair with Remplissage
. Open Bankart repair
. Coracoid transfer (Latarjet procedure)
. Arthroscopic capsular shift
. Putti-Platt procedure

Correct Answer & Explanation

. Coracoid transfer (Latarjet procedure)


Explanation

In collision athletes with critical glenoid bone loss (typically > 20-25%), isolated soft-tissue stabilization (Bankart repair) has unacceptably high failure rates. A bone-block procedure, such as the Latarjet (coracoid transfer), is the standard of care.

Question 3525

Topic: Shoulder & Hip Sports

A 21-year-old collegiate wrestler has experienced multiple anterior shoulder dislocations. A recent CT scan indicates 30% anterior glenoid bone loss. What is the most appropriate surgical intervention to prevent recurrent instability?

. Arthroscopic Bankart repair with suture anchors
. Open Bankart repair and capsular shift
. Coracoid transfer to the anterior glenoid (Latarjet procedure)
. Remplissage procedure alone
. Subscapularis tendon transfer

Correct Answer & Explanation

. Coracoid transfer to the anterior glenoid (Latarjet procedure)


Explanation

Anterior glenoid bone loss exceeding 20-25% is a strict contraindication for isolated soft-tissue procedures like a Bankart repair. A bony augmentation procedure, such as the Latarjet (coracoid transfer), is required to restore the glenoid articular arc.

Question 3526

Topic: Shoulder & Hip Sports

A 21-year-old collegiate rugby player with a history of multiple recurrent anterior shoulder dislocations undergoes evaluation. A CT scan with 3D reconstruction reveals a 28% anterior glenoid bone loss. What is the most appropriate surgical intervention?

. Arthroscopic Bankart repair
. Open capsular shift
. Latarjet procedure
. Arthroscopic remplissage procedure
. Putti-Platt procedure

Correct Answer & Explanation

. Latarjet procedure


Explanation

Critical glenoid bone loss (typically > 20-25%) is a direct contraindication to an isolated soft-tissue Bankart repair due to unacceptably high recurrence rates. The Latarjet procedure (coracoid transfer) is the gold standard, effectively restoring the bony arc and providing a dynamic soft-tissue sling.

Question 3527

Topic: Shoulder & Hip Sports

A 22-year-old collegiate rugby player presents with recurrent anterior shoulder instability. A 3D CT scan demonstrates 25% anterior glenoid bone loss.

Which of the following is the most appropriate definitive management?

. Arthroscopic Bankart repair with suture anchors
. Open Bankart repair and inferior capsular shift
. Coracoid transfer to the anterior glenoid (Latarjet procedure)
. Arthroscopic Remplissage procedure
. Humeral head osteochondral allograft

Correct Answer & Explanation

. Coracoid transfer to the anterior glenoid (Latarjet procedure)


Explanation

Critical glenoid bone loss (typically >20-25%) in a contact athlete is a primary indication for a bony augmentation procedure like the Latarjet. Arthroscopic soft-tissue repairs alone in this setting have an unacceptably high failure rate.

Question 3528

Topic: Shoulder & Hip Sports

A 22-year-old collegiate football player presents with his third anterior shoulder dislocation. Imaging reveals an engaged Hill-Sachs lesion and 25% anterior glenoid bone loss. What is the most appropriate surgical management?

. Arthroscopic Bankart repair
. Open Bankart repair with inferior capsular shift
. Latarjet procedure
. Arthroscopic remplissage alone
. Total shoulder arthroplasty

Correct Answer & Explanation

. Latarjet procedure


Explanation

In the setting of recurrent anterior instability with critical glenoid bone loss (greater than 20-25%), a soft tissue repair alone has an unacceptably high failure rate. The Latarjet procedure (coracoid transfer) addresses the bony defect and provides a sling effect via the conjoint tendon.

Question 3529

Topic: Shoulder & Hip Sports

A 45-year-old laborer with chronic shoulder pain has failed 6 months of physical therapy. MRI demonstrates a Type II SLAP tear without rotator cuff pathology. Based on recent literature, which surgical intervention provides the most reliable functional outcome in this demographic?

. Arthroscopic SLAP repair
. Subpectoral biceps tenodesis
. Distal clavicle excision
. Coracoacromial ligament release
. Thermal capsulorrhaphy

Correct Answer & Explanation

. Subpectoral biceps tenodesis


Explanation

In patients older than 40 years with symptomatic Type II SLAP tears, biceps tenodesis provides superior clinical outcomes and a lower revision rate compared to arthroscopic SLAP repair. SLAP repairs in older patients often result in postoperative stiffness and persistent pain.

Question 3530

Topic: Shoulder & Hip Sports

A 72-year-old man presents with chronic shoulder pain and an inability to actively raise his arm above 45 degrees. He has a positive drop arm sign. MRI reveals a massive, retracted, and irreparable posterosuperior rotator cuff tear with fatty infiltration of the infraspinatus and teres minor. The subscapularis is intact. What is the most appropriate definitive management?

. Arthroscopic subacromial decompression and debridement
. Latissimus dorsi tendon transfer
. Lower trapezius tendon transfer
. Reverse total shoulder arthroplasty
. Pectoralis major tendon transfer

Correct Answer & Explanation

. Reverse total shoulder arthroplasty


Explanation

The patient exhibits pseudoparalysis (inability to actively elevate the arm above 90 degrees) in the setting of an irreparable massive rotator cuff tear. Reverse total shoulder arthroplasty is the treatment of choice to restore forward elevation by maximizing the mechanical advantage of the deltoid.

Question 3531

Topic: Shoulder & Hip Sports

A 21-year-old collegiate linebacker presents with recurrent anterior shoulder instability. An en face 3D CT scan of the glenoid demonstrates significant anterior bone loss. At what percentage of anterior glenoid bone loss is an isolated arthroscopic Bankart repair generally considered to have an unacceptably high failure rate, warranting a bony augmentation procedure?

. 5%
. 10%
. 25%
. 40%
. 50%

Correct Answer & Explanation

. 25%


Explanation

Arthroscopic Bankart repair alone is associated with unacceptably high failure rates when anterior glenoid bone loss exceeds 20 to 25%. In such cases, a bone block augmentation procedure, such as the Latarjet procedure, is indicated to restore stability.

Question 3532

Topic: 5. Sports Medicine

A 25-year-old professional baseball pitcher presents with deep shoulder pain and decreased throwing velocity. Physical examination reveals a positive O'Brien test. MRI arthrography shows a Type II SLAP tear. Which of the following biomechanical forces is most frequently implicated in causing this injury during the late cocking phase of throwing?

. Anterior translation of the humeral head
. Internal rotation contracture of the glenohumeral joint
. The peel-back mechanism of the biceps anchor
. Subcoracoid impingement
. Posterior translation of the humeral head

Correct Answer & Explanation

. Anterior translation of the humeral head


Explanation

In overhead throwing athletes, Type II SLAP tears are frequently caused by the peel-back mechanism. During the late cocking phase, maximal external rotation places a torsional and posteriorly directed force on the biceps anchor, peeling it from the superior glenoid.

Question 3533

Topic: Shoulder & Hip Sports

A 22-year-old rugby player presents with recurrent anterior shoulder instability. CT scan imaging demonstrates 25% anterior glenoid bone loss. What is the most appropriate definitive surgical management?

. Arthroscopic Bankart repair
. Open Bankart repair
. Coracoid transfer (Latarjet procedure)
. Arthroscopic remplissage alone
. Putti-Platt procedure

Correct Answer & Explanation

. Arthroscopic Bankart repair


Explanation

Glenoid bone loss greater than 20-25% is a contraindication to isolated soft-tissue repair. A coracoid transfer (Latarjet) restores glenoid bone stock and provides a dynamic sling effect from the conjoint tendon.

Question 3534

Topic: Shoulder & Hip Sports

A 24-year-old professional baseball pitcher reports posterior shoulder pain during the late cocking phase of throwing. MRI arthrography reveals posterosuperior labral fraying and a partial-thickness articular-sided supraspinatus tear. What is the primary pathophysiologic mechanism of this injury pattern?

. Subcoracoid impingement
. Primary outlet impingement
. Internal impingement
. SLAP peel-back mechanism
. Quadrilateral space syndrome

Correct Answer & Explanation

. Subcoracoid impingement


Explanation

Internal impingement occurs in overhead athletes during maximum abduction and external rotation (late cocking phase). The greater tuberosity abuts the posterosuperior glenoid, causing articular-sided rotator cuff tears and posterosuperior labral lesions.

Question 3535

Topic: Shoulder & Hip Sports

A 28-year-old volleyball player presents with isolated atrophy of the infraspinatus muscle and painless weakness in external rotation. MRI reveals a paralabral cyst. At what anatomical location is this cyst most likely compressing the suprascapular nerve?

. Spinoglenoid notch
. Suprascapular notch
. Quadrilateral space
. Triangular interval
. Subcoracoid space

Correct Answer & Explanation

. Spinoglenoid notch


Explanation

Compression of the suprascapular nerve at the spinoglenoid notch affects only the motor branch to the infraspinatus, causing isolated atrophy. Compression further proximal at the suprascapular notch would involve both the supraspinatus and infraspinatus.

Question 3536

Topic: Shoulder & Hip Sports

A 22-year-old collegiate rugby player presents with his fourth anterior shoulder dislocation. A 3D CT scan reveals 25% anterior glenoid bone loss. Which of the following is the most appropriate surgical intervention to minimize the risk of recurrent instability?

. Arthroscopic Bankart repair
. Open Bankart repair
. Arthroscopic remplissage alone
. Latarjet procedure
. Inferior capsular shift

Correct Answer & Explanation

. Latarjet procedure


Explanation

In high-impact collision athletes with significant anterior glenoid bone loss (greater than 20-25%), a coracoid transfer (Latarjet procedure) is indicated. This restores the glenoid track and provides a reliable osseoligamentous sling, preventing recurrent instability.

Question 3537

Topic: Shoulder & Hip Sports

A 45-year-old manual laborer presents with persistent anterior shoulder pain and painful catching despite 6 months of targeted physical therapy and NSAIDs. An MRI arthrogram reveals a Type II SLAP lesion. He has no other rotator cuff pathology. What is the most appropriate surgical treatment?

. Arthroscopic SLAP repair
. Isolated biceps tenotomy
. Continued non-operative management
. Coracoacromial ligament release
. Subpectoral biceps tenodesis

Correct Answer & Explanation

. Subpectoral biceps tenodesis


Explanation

In patients older than 40 years, especially heavy laborers, biceps tenodesis yields higher satisfaction rates, reliable pain relief, and lower complication rates compared to arthroscopic SLAP repair, which is prone to postoperative stiffness.

Question 3538

Topic: 5. Sports Medicine

Fresh frozen allograft is commonly used in orthopedic reconstructive procedures. Which of the following properties is preserved in a fresh frozen allograft compared to an autograft?

. Osteogenesis
. Osteoinductivity and osteoconductivity
. Immediate structural strength greater than autograft
. Living osteocytes
. Resistance to immune rejection

Correct Answer & Explanation

. Osteoinductivity and osteoconductivity


Explanation

Fresh frozen allografts are osteoinductive (retaining proteins like BMPs) and osteoconductive (providing a structural scaffold). However, they lack living cells and are therefore not osteogenic.

Question 3539

Topic: Knee Sports

Following a marrow-stimulating procedure (e.g., microfracture) for a full-thickness chondral defect, the resulting repair tissue is predominantly composed of:

. Type I collagen
. Type II collagen
. Type IX collagen
. Type X collagen
. Type XI collagen

Correct Answer & Explanation

. Type I collagen


Explanation

Microfracture stimulates a marrow-based healing response that typically fills the defect with fibrocartilage rather than native hyaline cartilage. Fibrocartilage is structurally inferior and is predominantly composed of Type I collagen.

Question 3540

Topic: 5. Sports Medicine
A 25-year-old athlete undergoes a knee arthroscopy, during which a full-thickness chondral defect is noted. The primary extracellular matrix structural protein in the healthy adjacent hyaline articular cartilage is:
. Type I collagen
. Type II collagen
. Type III collagen
. Type IX collagen
. Type X collagen

Correct Answer & Explanation

. Type II collagen


Explanation

Type II collagen constitutes 90% to 95% of the collagen in healthy articular cartilage and provides its tensile strength.