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Question 901

Topic: Shoulder & Hip Sports

A 25-year-old elite overhead thrower presents with chronic posterior shoulder pain during the late cocking phase of throwing. Examination reveals a significant Glenohumeral Internal Rotation Deficit (GIRD) and a positive posterior impingement test. Diagnostic arthroscopy is most likely to reveal which of the following?

. Anterior labral tear with middle glenohumeral ligament rupture
. Fraying of the posterosuperior labrum and articular-sided rotator cuff
. Subacromial bursitis with profound coracoacromial ligament thickening
. Degenerative tearing of the subscapularis and biceps pulley
. Os acromiale with mechanical subacromial impingement

Correct Answer & Explanation

. Fraying of the posterosuperior labrum and articular-sided rotator cuff


Explanation

Internal impingement in overhead athletes occurs when the posterosuperior rotator cuff is pinched between the greater tuberosity and the posterosuperior glenoid labrum during extreme abduction and external rotation. This repetitive trauma predictably leads to articular-sided cuff fraying and posterosuperior labral pathology.

Question 902

Topic: Shoulder & Hip Sports

A 22-year-old collegiate baseball pitcher complains of deep shoulder pain during the late cocking phase of throwing. MRI arthrogram shows a Type II SLAP tear. After failing 6 months of targeted physical therapy, what is the most appropriate surgical intervention?

. Arthroscopic SLAP repair
. Open subpectoral biceps tenodesis
. Arthroscopic biceps tenotomy
. Coracoid transfer (Latarjet procedure)
. Arthroscopic subacromial decompression

Correct Answer & Explanation

. Arthroscopic SLAP repair


Explanation

In a young overhead athlete with a Type II SLAP tear failing conservative treatment, arthroscopic SLAP repair is the preferred surgical option to maintain the biceps anchor and normal shoulder kinematics. Biceps tenodesis is typically reserved for older patients, laborers, or revision settings.

Question 903

Topic: Shoulder & Hip Sports

A 45-year-old male sustains a traumatic right shoulder injury. He exhibits increased passive external rotation, a positive lift-off test, and a positive belly-press test. MRI confirms an isolated full-thickness tear of the subscapularis tendon. Which associated pathology must be carefully evaluated and addressed during surgical repair?

. SLAP tear
. Long head of the biceps tendon subluxation or dislocation
. Teres minor atrophy
. Acromioclavicular joint separation
. Suprascapular nerve entrapment

Correct Answer & Explanation

. Long head of the biceps tendon subluxation or dislocation


Explanation

The subscapularis tendon contributes to the medial wall of the bicipital groove and the transverse humeral ligament. A full-thickness tear of the subscapularis is highly associated with medial subluxation or dislocation of the long head of the biceps tendon.

Question 904

Topic: Shoulder & Hip Sports

A 30-year-old female presents to the emergency department with a history of recurrent anterior shoulder dislocations. She is considering surgical stabilization. Which physical examination finding would most strongly suggest the presence of a Bankart lesion and indicate the need for surgery?

. Apprehension test positive with external rotation and abduction.
. Sulcus sign positive with inferior traction.
. O'Brien's test positive with pain on internal rotation.
. Pain on resisted abduction.
. Weakness of external rotation.

Correct Answer & Explanation

. Apprehension test positive with external rotation and abduction.


Explanation

A positive apprehension test (eliciting apprehension or pain when the arm is abducted and externally rotated) is the classic clinical sign for anterior glenohumeral instability and strongly suggests a Bankart lesion or other anterior labral pathology. The apprehension test assesses the anterior stability of the shoulder. A sulcus sign indicates inferior instability/multidirectional instability. O'Brien's test is for SLAP lesions (superior labral tears). Pain on resisted abduction could be impingement or rotator cuff pathology. Weakness of external rotation suggests rotator cuff pathology. While other findings may be present, the apprehension test is the most direct indicator of anterior instability leading to recurrent dislocations.

Question 905

Topic: Shoulder & Hip Sports

A 40-year-old male sustains an anterior glenohumeral dislocation. After successful closed reduction, what is the most important radiographic view to obtain to assess for associated injuries?

. AP shoulder view.
. Y-scapular view.
. Axillary view.
. Stryker notch view.
. Outlet view.

Correct Answer & Explanation

. Axillary view.


Explanation

After closed reduction of an anterior glenohumeral dislocation, the axillary view is the most important radiographic view. It is crucial for confirming concentric reduction and for detecting associated injuries such as a Hill-Sachs lesion (compression fracture of the posterior humeral head), bony Bankart lesion (fracture of the anteroinferior glenoid rim), or greater tuberosity fracture. While AP and Y-scapular views are important for initial diagnosis and pre-reduction assessment, they may not adequately visualize these specific associated injuries post-reduction. The Stryker notch view is specifically for Hill-Sachs lesions, and the outlet view is for impingement, but the axillary view provides a comprehensive post-reduction assessment.

Question 906

Topic: Shoulder & Hip Sports

A 25-year-old professional baseball pitcher presents with posterior shoulder pain during the late cocking phase of throwing. He is diagnosed with internal impingement. Which of the following physical exam findings is most characteristically associated with this condition?

. Glenohumeral internal rotation deficit (GIRD)
. Positive Hornblower's sign
. Positive belly press test
. Scapular winging with wall push-ups
. Profound weakness in external rotation at 0 degrees of abduction

Correct Answer & Explanation

. Glenohumeral internal rotation deficit (GIRD)


Explanation

Internal impingement (posterosuperior impingement) occurs when the greater tuberosity abuts the posterosuperior glenoid during extreme abduction and external rotation. It is highly associated with Glenohumeral Internal Rotation Deficit (GIRD) in overhead athletes, driven by repetitive microtrauma leading to contracture of the posterior capsule and posterior band of the inferior glenohumeral ligament.

Question 907

Topic: Shoulder & Hip Sports
A 22-year-old baseball pitcher presents with vague, deep shoulder pain and a 'dead arm' feeling. An MRI arthrogram reveals a Type II SLAP (Superior Labrum Anterior and Posterior) tear. What is the defining anatomical characteristic of a Type II SLAP tear?
. Fraying of the superior labrum with an intact biceps anchor
. Detachment of the superior labrum and biceps anchor from the glenoid
. Bucket-handle tear of the superior labrum with an intact biceps anchor
. Bucket-handle tear of the superior labrum extending into the biceps tendon
. Anterior-inferior labral detachment with capsular stripping

Correct Answer & Explanation

. Detachment of the superior labrum and biceps anchor from the glenoid


Explanation

According to the Snyder classification of SLAP lesions: Type I is fraying of the superior labrum; Type II is detachment of the superior labrum and the long head of the biceps anchor from the superior glenoid tubercle; Type III is a bucket-handle tear of the labrum with an intact biceps anchor; Type IV is a bucket-handle tear of the labrum that extends into the biceps tendon.

Question 908

Topic: Shoulder & Hip Sports

A 22-year-old collegiate baseball pitcher complains of posterior shoulder pain during the late cocking phase of throwing. He has a positive apprehension test but no relief with the relocation test. MRI reveals articular-sided, partial-thickness tears of the supraspinatus and a superior labrum anterior-posterior (SLAP) lesion. What is the underlying pathophysiology of this condition?

. Subcoracoid impingement
. Anterosuperior capsular tightness
. Glenohumeral internal rotation deficit (GIRD) with posterior capsular contracture
. Congenital glenoid hypoplasia
. Scapular dyskinesia causing primary external impingement

Correct Answer & Explanation

. Glenohumeral internal rotation deficit (GIRD) with posterior capsular contracture


Explanation

This presentation describes 'internal impingement' (posterosuperior impingement), classically seen in overhead throwing athletes. The underlying pathophysiology is driven by posterior capsular contracture, leading to a glenohumeral internal rotation deficit (GIRD). The tight posterior capsule causes an obligate posterosuperior shift of the humeral head in extreme abduction and external rotation (late cocking phase), pinching the undersurface of the rotator cuff and superior labrum between the greater tuberosity and the posterosuperior glenoid rim.

Question 909

Topic: Shoulder & Hip Sports

During an arthroscopic anterior stabilization (Bankart repair) for recurrent shoulder instability, a 'remplissage' procedure is added. This procedure involves tenodesis of which structure into a Hill-Sachs lesion?

. Long head of the biceps tendon
. Subscapularis tendon
. Infraspinatus tendon and posterior capsule
. Supraspinatus tendon
. Middle glenohumeral ligament

Correct Answer & Explanation

. Infraspinatus tendon and posterior capsule


Explanation

Remplissage (French for 'to fill in') is used to address large, engaging Hill-Sachs lesions. It involves capsulotenodesis of the posterior capsule and infraspinatus tendon into the humeral head defect, rendering it extra-articular and preventing it from engaging the anterior glenoid rim.

Question 910

Topic: Shoulder & Hip Sports

A 22-year-old rugby player has recurrent anterior shoulder instability. A 3D CT scan reveals a 25% anterior glenoid bone loss along with a large, engaging Hill-Sachs lesion. What is the most appropriate surgical treatment to effectively restore stability and prevent future dislocations?

. Arthroscopic Bankart repair with remplissage
. Arthroscopic Bankart repair alone
. Latarjet procedure
. Putti-Platt procedure
. Arthroscopic capsular plication

Correct Answer & Explanation

. Latarjet procedure


Explanation

In the setting of significant anterior glenoid bone loss (>20-25%), soft tissue stabilization (Bankart repair) alone has an unacceptably high failure rate. Bony augmentation, such as the Latarjet procedure (coracoid transfer), is the standard of care. It restores the anterior glenoid arc and provides dynamic stability via the 'sling effect' of the conjoint tendon. Remplissage can address an engaging Hill-Sachs lesion but does not replace missing glenoid bone.

Question 911

Topic: Shoulder & Hip Sports

During physical examination for shoulder pain, a patient has a positive 'bear hug' test and a positive 'belly press' test, but a negative 'lift-off' test. This combination of clinical findings most strongly suggests a tear involving which portion of the subscapularis tendon?

. The entire footprint
. The superior one-third
. The inferior one-third
. The musculotendinous junction
. The lesser tuberosity avulsion

Correct Answer & Explanation

. The superior one-third


Explanation

The 'bear hug' and 'belly press' tests are highly sensitive for upper (superior) subscapularis tears. The 'lift-off' test primarily isolates the inferior portion of the subscapularis. A positive belly press and negative lift-off typically indicate a partial tear involving the superior subscapularis tendon.

Question 912

Topic: Shoulder & Hip Sports

During an arthroscopic stabilization for recurrent anterior shoulder instability, the surgeon identifies an anterior labral tear that has displaced medially and healed directly to the anterior glenoid neck beneath an intact periosteum. What is the specific eponym for this lesion?

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

Correct Answer & Explanation

. ALPSA lesion


Explanation

An ALPSA (Anterior Labroligamentous Periosteal Sleeve Avulsion) lesion occurs when the anterior inferior labrum is torn and displaced medially, healing in an abnormal position on the glenoid neck with an intact periosteal sleeve. Unlike a Perthes lesion (where the periosteum is intact but the labrum is not medially displaced) or a classic Bankart (where the periosteum is torn), an ALPSA must be systematically mobilized laterally before it can be anatomically repaired.

Question 913

Topic: Shoulder & Hip Sports

A 22-year-old rugby player undergoes evaluation for recurrent anterior shoulder instability. Diagnostic arthroscopy reveals a large Hill-Sachs lesion that 'engages' the anterior glenoid rim when the arm is placed in abduction and external rotation. The glenoid bone loss is estimated at 10%. Which of the following surgical procedures is most appropriate to address the Hill-Sachs lesion in conjunction with a Bankart repair?

. Latarjet procedure
. Arthroscopic remplissage
. Humeral head osteochondral allograft
. Putti-Platt procedure
. Bristow procedure

Correct Answer & Explanation

. Arthroscopic remplissage


Explanation

Arthroscopic remplissage involves filling the Hill-Sachs defect by tenodesing the infraspinatus tendon and posterior capsule into the lesion. It is indicated for engaging Hill-Sachs lesions without critical (>20-25%) glenoid bone loss. Since the glenoid bone loss is only 10%, a Bankart repair with remplissage is an excellent choice. If glenoid bone loss was >20-25%, a Latarjet would be indicated.

Question 914

Topic: Shoulder & Hip Sports

In a patient with recurrent anterior shoulder instability, a 'remplissage' procedure is indicated for a specific type of bony defect. This procedure involves the capsulotenodesis of which structure into the humeral defect?

. The long head of the biceps into an anterior glenoid defect
. The subscapularis into a reverse Hill-Sachs lesion
. The infraspinatus and posterior capsule into an engaging Hill-Sachs lesion
. The supraspinatus into a greater tuberosity defect
. The conjoined tendon into the anterior glenoid

Correct Answer & Explanation

. The infraspinatus and posterior capsule into an engaging Hill-Sachs lesion


Explanation

Remplissage (French for 'filling in') is an adjunctive procedure to an anterior Bankart repair for an engaging (off-track) Hill-Sachs lesion. It involves the tenodesis of the posterior capsule and infraspinatus tendon into the posterolateral humeral head defect, rendering it extra-articular and preventing it from engaging the anterior glenoid rim during external rotation and abduction.

Question 915

Topic: Shoulder & Hip Sports

A 28-year-old elite volleyball attacker presents with posterior shoulder pain and isolated weakness in external rotation. Magnetic resonance imaging demonstrates a multiloculated paralabral cyst located strictly within the spinoglenoid notch. Which muscle will exhibit neurogenic atrophy on the MRI?

. Supraspinatus only
. Infraspinatus only
. Both Supraspinatus and Infraspinatus
. Teres minor
. Subscapularis

Correct Answer & Explanation

. Infraspinatus only


Explanation

The suprascapular nerve innervates the supraspinatus before it passes through the spinoglenoid notch to innervate the infraspinatus. Entrapment of the nerve at the spinoglenoid notch (commonly by a cyst associated with a posterior labral tear) results in isolated denervation and atrophy of the infraspinatus, presenting clinically as isolated weakness in external rotation.

Question 916

Topic: Shoulder & Hip Sports

A 22-year-old rugby player has recurrent anterior shoulder instability. An MRI reveals a Bankart lesion and an engaging Hill-Sachs lesion. The glenoid bone loss is calculated at 22%. Which surgical procedure is most indicated to prevent further dislocations in this patient?

. Arthroscopic Bankart repair alone
. Open Bankart repair and inferior capsular shift
. Arthroscopic Bankart repair with Remplissage
. Latarjet procedure
. Putti-Platt procedure

Correct Answer & Explanation

. Latarjet procedure


Explanation

In collision athletes with significant glenoid bone loss (>20%) and an engaging Hill-Sachs lesion (an 'off-track' lesion), soft tissue stabilization procedures like Bankart repair have an unacceptably high failure rate. A bony augmentation procedure, most commonly the Latarjet procedure (coracoid transfer), is the standard of care to restore the anterior glenoid arc and create a 'sling' effect with the conjoint tendon.

Question 917

Topic: Shoulder & Hip Sports

A 19-year-old collegiate gymnast presents with bilateral shoulder pain. Examination reveals a 2+ sulcus sign in neutral rotation, 3+ anterior load-and-shift, and 3+ posterior load-and-shift bilaterally. She denies any specific traumatic event. What is the most appropriate initial management?

. Arthroscopic 270-degree capsulolabral plication
. Open inferior capsular shift
. Physical therapy focusing on periscapular and rotator cuff strengthening
. Thermal capsulorrhaphy
. Latarjet procedure

Correct Answer & Explanation

. Physical therapy focusing on periscapular and rotator cuff strengthening


Explanation

This patient presents with atraumatic Multidirectional Instability (MDI), classically seen in hyperlax individuals (AMBRI: Atraumatic, Multidirectional, Bilateral, Rehabilitation, Inferior capsular shift). The initial, and often definitive, treatment is an extensive course of physical therapy (usually 6-12 months) focused on strengthening the dynamic stabilizers (rotator cuff and periscapular musculature). Surgery is reserved for patients who fail prolonged rehabilitation.

Question 918

Topic: Shoulder & Hip Sports

In evaluating a patient with recurrent anterior shoulder instability, you assess the 'glenoid track' on advanced imaging. A Hill-Sachs lesion is deemed 'off-track'. Which of the following anatomic scenarios correctly defines an off-track Hill-Sachs lesion?

. The medial margin of the Hill-Sachs lesion lies medial to the medial margin of the glenoid track
. The medial margin of the Hill-Sachs lesion lies lateral to the medial margin of the glenoid track
. The width of the Hill-Sachs lesion is less than the width of the intact glenoid minus any anterior bone loss
. The glenoid bone loss is less than 15% of the total glenoid width
. The lesion exclusively engages in external rotation at 0 degrees of abduction

Correct Answer & Explanation

. The medial margin of the Hill-Sachs lesion lies medial to the medial margin of the glenoid track


Explanation

The glenoid track is defined as the contact zone of the glenoid on the humeral head during shoulder abduction and external rotation. It is calculated as 83% of the normal glenoid width minus the width of any anterior glenoid bone defect. A Hill-Sachs lesion is 'off-track' (meaning it will engage the anterior glenoid rim) if its medial margin extends further medially than the medial margin of the glenoid track. This typically requires an operation that addresses the humeral head defect (e.g., remplissage) or restores the glenoid track (e.g., Latarjet).

Question 919

Topic: Shoulder & Hip Sports

A 22-year-old professional rugby player presents with recurrent anterior shoulder instability. A 3D CT scan of the shoulder reveals an anterior glenoid bone loss of 28%. Which surgical procedure is most highly indicated for this patient to prevent further dislocations?

. Arthroscopic Bankart repair with suture anchors
. Arthroscopic Remplissage procedure
. Latarjet procedure (coracoid transfer)
. Inferior capsular shift
. Osteochondral allograft of the humeral head

Correct Answer & Explanation

. Latarjet procedure (coracoid transfer)


Explanation

In the presence of critical anterior glenoid bone loss (>20-25%), soft-tissue repairs (Bankart) have an unacceptably high failure rate. The Latarjet procedure (transfer of the coracoid process to the anterior glenoid) is the gold standard. It restores the bony arc and provides a dynamic 'sling effect' from the attached conjoined tendon.

Question 920

Topic: Shoulder & Hip Sports

Superior capsular reconstruction (SCR) is a surgical option for massive, irreparable rotator cuff tears. The primary biomechanical goal of the graft in SCR is to:

. Reconstruct the anterior restraint to prevent anterior subluxation
. Restore active abduction through a dynamic tenodesis effect
. Depress the humeral head and prevent superior migration during shoulder elevation
. Act as a spacer to widen the subacromial space without attaching to the humerus
. Replace the subscapularis footprint to balance transverse force couples

Correct Answer & Explanation

. Depress the humeral head and prevent superior migration during shoulder elevation


Explanation

In massive, irreparable posterosuperior rotator cuff tears, the loss of the supraspinatus and infraspinatus leads to superior migration of the humeral head due to unopposed deltoid pull. Superior capsular reconstruction (SCR) utilizes a graft (typically fascia lata or human dermal allograft) attached medially to the superior glenoid and laterally to the greater tuberosity. Its primary biomechanical role is to function as a static restraint to prevent superior migration of the humeral head, restoring the glenohumeral fulcrum to improve deltoid efficiency.