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Question 281

Topic: Shoulder & Hip Sports

During a deltopectoral approach, after incising the clavipectoral fascia and retracting the conjoined tendon medially, the surgeon is preparing to expose the subscapularis. The axillary neurovascular bundle is a critical structure to protect. Where is this bundle primarily located relative to the coracoid process and pectoralis minor muscle?

. Lateral and superficial to the coracoid process.
. Superior and anterior to the pectoralis minor muscle.
. Medial and deep to the coracoid process and pectoralis minor muscle.
. Inferior and posterior to the subscapularis muscle.
. Within the deltopectoral groove, superficial to the pectoralis major.

Correct Answer & Explanation

. Medial and deep to the coracoid process and pectoralis minor muscle.


Explanation

Correct Answer: CExplanation:The case states under "Deep Anatomy" and "Axillary Neurovascular Bundle": "Situatedmedial and deep to the coracoid process. This bundle contains the axillary artery, axillary vein, and brachial plexus cords (lateral, posterior, medial)." It also mentions the pectoralis minor muscle "lies deep to the pectoralis major and superficial to the axillary neurovascular bundle," implying the bundle is deep to the pectoralis minor as well.A. Lateral and superficial to the coracoid process:This area would be more associated with the deltoid and potentially the axillary nerve as it wraps around the humerus, not the main axillary neurovascular bundle.B. Superior and anterior to the pectoralis minor muscle:The pectoralis minor muscle itself is anterior to the bundle, and the bundle is not typically superior to the coracoid.D. Inferior and posterior to the subscapularis muscle:While the axillary nerve (a branch from the brachial plexus) passes inferior to the subscapularis, the main axillary neurovascular bundle (artery, vein, and plexus cords) is more medial and deep to the coracoid and pectoralis minor.E. Within the deltopectoral groove, superficial to the pectoralis major:The deltopectoral groove contains the cephalic vein and is superficial to the pectoralis major. The axillary neurovascular bundle is much deeper.

Question 282

Topic: Shoulder & Hip Sports

A posterior approach to the shoulder (modified Judet) is selected for open reduction and internal fixation of a displaced posterior glenoid fracture. What is the true internervous plane utilized to safely expose the posterior joint capsule?

. Supraspinatus and Infraspinatus
. Infraspinatus and Teres minor
. Teres minor and Teres major
. Deltoid and Triceps brachii
. Subscapularis and Teres minor

Correct Answer & Explanation

. Infraspinatus and Teres minor


Explanation

The posterior approach to the shoulder uses the internervous plane between the infraspinatus (suprascapular nerve) and the teres minor (axillary nerve). Retracting these muscles exposes the posterior capsule and glenoid.

Question 283

Topic: Shoulder & Hip Sports

A 45-year-old male undergoes open reduction and internal fixation of a posterior glenoid rim fracture. A posterior approach to the shoulder is utilized. Which of the following defines the true internervous plane for this approach?

. Teres minor and teres major
. Infraspinatus and teres minor
. Supraspinatus and infraspinatus
. Deltoid and triceps
. Infraspinatus and teres major

Correct Answer & Explanation

. Infraspinatus and teres minor


Explanation

The posterior approach to the shoulder utilizes the true internervous plane between the infraspinatus (suprascapular nerve) and the teres minor (axillary nerve).

Question 284

Topic: Shoulder & Hip Sports

When performing a posterior approach to the shoulder for open reduction of a posterior glenoid fracture, the surgeon develops an internervous plane between which two muscles to access the posterior joint capsule?

. Infraspinatus and Teres Minor
. Teres Minor and Teres Major
. Supraspinatus and Infraspinatus
. Deltoid and Triceps
. Infraspinatus and Deltoid

Correct Answer & Explanation

. Infraspinatus and Teres Minor


Explanation

The standard posterior approach to the shoulder utilizes the internervous plane between the infraspinatus (suprascapular nerve) and the teres minor (axillary nerve). This plane safely exposes the posterior glenohumeral joint capsule.

Question 285

Topic: Shoulder & Hip Sports

A 22-year-old collegiate football player sustains an anterior shoulder dislocation. Advanced imaging reveals an engaging Hill-Sachs lesion and 25% anterior glenoid bone loss. Which of the following surgical procedures is MOST appropriate to restore stability?

. Arthroscopic Bankart repair with Remplissage
. Open Bankart repair alone
. Latarjet procedure
. Putti-Platt procedure
. Bristow procedure

Correct Answer & Explanation

. Latarjet procedure


Explanation

Critical anterior glenoid bone loss combined with an engaging Hill-Sachs lesion is a high-risk scenario for recurrent instability after soft tissue repair alone. The Latarjet procedure (coracoid transfer) is the standard of care to restore the glenoid bone arc and provide a sling effect.

Question 286

Topic: Shoulder & Hip Sports

A 40-year-old male sustains a posterior shoulder dislocation following a seizure. CT scan reveals an anteromedial humeral head impaction fracture (reverse Hill-Sachs lesion) that involves 45% of the articular surface. Which of the following surgical interventions is MOST appropriate for this patient?

. Closed reduction and spica casting
. Arthroscopic labral repair (reverse Bankart repair)
. Transfer of the subscapularis into the defect (McLaughlin procedure)
. Transfer of the lesser tuberosity into the defect (Modified McLaughlin)
. Shoulder arthroplasty (hemiarthroplasty or total shoulder)

Correct Answer & Explanation

. Transfer of the lesser tuberosity into the defect (Modified McLaughlin)


Explanation

Management of a reverse Hill-Sachs lesion depends on the size of the articular defect. Defects <20% can often be observed; 20-40% are treated with subscapularis/lesser tuberosity transfer; and defects >40% typically require arthroplasty to restore joint stability and congruency.

Question 287

Topic: Shoulder & Hip Sports

A 21-year-old motorcyclist sustains a traumatic scapulothoracic dissociation. Physical examination reveals massive shoulder swelling and an insensate, flail upper extremity. Which of the following injuries has the highest association with this clinical entity and largely dictates the ultimate functional prognosis?

. Subclavian artery rupture
. Complete brachial plexus avulsion
. Scapular body comminution
. Pneumothorax
. Rotator cuff tear

Correct Answer & Explanation

. Complete brachial plexus avulsion


Explanation

Scapulothoracic dissociation is characterized by lateral displacement of the scapula with an intact skin envelope. It is highly associated with devastating neurovascular injuries, particularly complete brachial plexus avulsions, which carry a grim functional prognosis.

Question 288

Topic: Shoulder & Hip Sports

A 28-year-old professional volleyball player presents with insidious posterior shoulder pain and weakness. Physical exam reveals isolated weakness in external rotation with the arm at the side. The infraspinatus demonstrates profound atrophy, but the supraspinatus muscle bulk and strength are completely normal. Where is the most likely site of nerve compression?

. Suprascapular notch
. Quadrilateral space
. Spinoglenoid notch
. Spiral groove
. Cubital tunnel

Correct Answer & Explanation

. Spinoglenoid notch


Explanation

Compression of the suprascapular nerve at the spinoglenoid notch affects only the branch to the infraspinatus, causing isolated external rotation weakness. Compression at the suprascapular notch would affect both the supraspinatus and infraspinatus.

Question 289

Topic: Shoulder & Hip Sports

The Remplissage procedure is utilized to manage significant engaging Hill-Sachs lesions following anterior shoulder dislocations. It involves capsulodesis and tenodesis of which muscle into the humeral head defect?

. Supraspinatus
. Infraspinatus
. Teres minor
. Subscapularis
. Long head of the biceps

Correct Answer & Explanation

. Infraspinatus


Explanation

The Remplissage procedure effectively converts an intra-articular engaging Hill-Sachs lesion into an extra-articular defect. It is performed by suturing the posterior capsule and the infraspinatus tendon into the bony defect of the posterolateral humeral head.

Question 290

Topic: Shoulder & Hip Sports

A 55-year-old male undergoes arthroscopic evaluation of a massive rotator cuff tear involving the supraspinatus and infraspinatus. Preoperatively, he exhibited a positive 'horn blower's' sign. Which muscle is primarily deficient?

. Supraspinatus
. Infraspinatus
. Teres minor
. Subscapularis
. Deltoid

Correct Answer & Explanation

. Teres minor


Explanation

The horn blower's sign indicates weakness of external rotation with the arm abducted to 90 degrees and specifically evaluates the integrity of the teres minor. A positive sign suggests teres minor deficiency or profound fatty infiltration.

Question 291

Topic: Shoulder & Hip Sports

A 22-year-old rugby player presents with a history of recurrent anterior shoulder instability. CT scan evaluation of the glenoid demonstrates a 25% anterior glenoid bone defect. Which of the following is the most appropriate definitive surgical management?

. Arthroscopic Bankart repair with Remplissage
. Arthroscopic capsular plication
. Open Latarjet procedure
. Open Bankart repair
. Arthroscopic superior capsular reconstruction

Correct Answer & Explanation

. Open Latarjet procedure


Explanation

The open Latarjet procedure (coracoid transfer) is indicated for anterior shoulder instability with critical glenoid bone loss, typically defined as greater than 20-25%. Arthroscopic or open Bankart repairs alone in this setting have an unacceptably high failure rate. The Latarjet provides a triple-blocking effect: bone block, sling effect of the conjoint tendon, and capsule repair.

Question 292

Topic: Shoulder & Hip Sports

A 20-year-old collegiate rugby player presents with recurrent anterior shoulder instability. A pre-operative 3D CT scan demonstrates 27% anterior glenoid bone loss. Which of the following is the most appropriate definitive management?

. Arthroscopic Bankart repair with suture anchors
. Open Bankart repair with capsular shift
. Coracoid transfer (Latarjet procedure)
. Arthroscopic remplissage alone
. Non-operative management with a physical therapy stabilization program

Correct Answer & Explanation

. Coracoid transfer (Latarjet procedure)


Explanation

In a high-demand collision athlete with greater than 20-25% anterior glenoid bone loss, a bony augmentation procedure such as the Latarjet procedure is indicated. Soft tissue procedures alone carry unacceptably high failure rates in this setting.

Question 293

Topic: Shoulder & Hip Sports

A 22-year-old collegiate baseball pitcher presents with posterior shoulder pain during the late cocking phase of throwing. MRI arthrography reveals a Type II SLAP lesion. The pathogenesis of this specific injury is most commonly associated with:

. Excessive glenohumeral internal rotation (GIRD) causing posterosuperior internal impingement
. Acute traumatic anterior glenohumeral dislocation
. Subcoracoid impingement
. Calcific tendinitis of the supraspinatus
. Ischemic necrosis of the biceps anchor

Correct Answer & Explanation

. Excessive glenohumeral internal rotation (GIRD) causing posterosuperior internal impingement


Explanation

In overhead throwers, repetitive stress leads to posterior capsular contracture (GIRD), altering glenohumeral kinematics. This results in posterosuperior translation of the humeral head during abduction and external rotation, causing internal impingement and peeling back of the superior labrum.

Question 294

Topic: Shoulder & Hip Sports

During the physical examination portion of your oral answer, the examiner asks how you would assess for a subscapularis tear. Which test is considered the most specific for isolated subscapularis pathology?

. Empty Can Test.
. External Rotation Lag Sign.
. Speed's Test.
. Lift-Off Test.
. Jobe's Test.

Correct Answer & Explanation

. Lift-Off Test.


Explanation

Correct Answer: DThe Lift-Off Test (Gerber's Test) is specifically designed to assess the integrity and strength of the subscapularis muscle. The patient places their hand behind their back, and the examiner asks them to lift it off their back. Inability to do so, or weakness compared to the contralateral side, suggests subscapularis pathology. The External Rotation Lag Sign can also indicate subscapularis dysfunction but is less specific for isolated tears. Empty Can and Jobe's tests assess supraspinatus, and Speed's test assesses biceps/SLAP.

Question 295

Topic: Shoulder & Hip Sports

An examiner asks you about imaging for a suspected rotator cuff tear. For initial evaluation, which imaging modality is generally preferred due to its balance of cost-effectiveness, accessibility, and diagnostic accuracy?

. Plain Radiographs.
. Computed Tomography (CT) Scan.
. Magnetic Resonance Imaging (MRI).
. Diagnostic Ultrasound.
. CT Arthrogram.

Correct Answer & Explanation

. Magnetic Resonance Imaging (MRI).


Explanation

Correct Answer: CWhile plain radiographs are essential for bone assessment and initial screening, and diagnostic ultrasound can be highly accurate in experienced hands, MRI is considered the gold standard for soft tissue evaluation of the shoulder, including rotator cuff tears. It provides excellent detail of the tendons, labrum, capsule, and bone marrow edema. CT scans are superior for bony detail but poor for soft tissue, and CT arthrograms are typically reserved for specific instability or labral questions where MRI might be equivocal.

Question 296

Topic: Shoulder & Hip Sports

An examiner probes your understanding of rotator cuff repair indications. Which factor is generally considered a strong indication for surgical repair of an acute, traumatic full-thickness rotator cuff tear in an otherwise healthy, active patient?

. Age over 70 years.
. Chronic, degenerative tear with minimal functional deficit.
. Significant functional impairment and failure of 6-12 weeks of structured non-operative management.
. Full-thickness tear greater than 1 cm in size.
. Associated glenohumeral osteoarthritis.

Correct Answer & Explanation

. Significant functional impairment and failure of 6-12 weeks of structured non-operative management.


Explanation

Correct Answer: CFor an acute, traumatic full-thickness rotator cuff tear in an otherwise healthy, active patient, surgical repair is often indicated early to optimize healing potential and prevent retraction. However, the question asks for astrong indicationfor surgical repair, which often implies a failure of initial non-operative measures or a clear functional deficit. Significant functional impairment that persists despite a trial of 6-12 weeks of structured non-operative management (which might be attempted even for some acute tears, or is standard for chronic tears) is a universally strong indication for surgical repair. While acute traumatic tears in active patients are often repaired sooner, option C represents a robust and widely accepted indication for surgical intervention when conservative measures have proven insufficient. Age over 70 is a relative contraindication, chronic degenerative tears without significant deficit may be observed, and tear size alone is not always the sole indicator. Associated glenohumeral osteoarthritis influences the type of surgery, not necessarily the indication for rotator cuff repair itself.

Question 297

Topic: Shoulder & Hip Sports

When discussing the expected outcome following an arthroscopic Bankart repair for recurrent anterior shoulder instability, what complication is crucial to mention to the examiner as a potential risk, particularly regarding range of motion?

. Axillary nerve palsy.
. Deltoid detachment.
. Post-operative stiffness (adhesive capsulitis).
. Persistent pain due to hardware impingement.
. Avascular necrosis of the humeral head.

Correct Answer & Explanation

. Post-operative stiffness (adhesive capsulitis).


Explanation

Correct Answer: CPost-operative stiffness, or iatrogenic adhesive capsulitis, is a recognized complication after arthroscopic instability repair, especially if immobilization is prolonged or rehabilitation is too aggressive initially, or if there's an over-tightening of the capsule. Axillary nerve palsy is rare but serious. Deltoid detachment is more relevant for open approaches, and AVN is extremely rare for Bankart repair. Hardware impingement is possible but less common than stiffness.

Question 298

Topic: Shoulder & Hip Sports

You are asked to describe the rehabilitation principles following an arthroscopic rotator cuff repair. What is the primary goal during the initial phase (0-6 weeks post-op)?

. Achieve full active range of motion.
. Initiate aggressive strengthening exercises.
. Protect the repair, control pain, and achieve passive range of motion.
. Return to sport-specific activities.
. Improve scapular kinematics with resistive exercises.

Correct Answer & Explanation

. Protect the repair, control pain, and achieve passive range of motion.


Explanation

Correct Answer: CThe initial phase (0-6 weeks) after rotator cuff repair is critical for protecting the healing tendon. The primary goals are to protect the repair site from excessive stress (often with immobilization), manage pain and inflammation, and gradually restore passive range of motion within protected arcs. Aggressive active motion or strengthening is contraindicated as it can jeopardize the repair. Full active ROM and return to sport are later phase goals.

Question 299

Topic: Shoulder & Hip Sports

A 22-year-old male presents with recurrent anterior shoulder instability following an initial dislocation during a rugby match. Advanced imaging reveals 25% anterior glenoid bone loss and an engaging Hill-Sachs lesion. Which of the following is the most appropriate definitive surgical management?

. Arthroscopic Bankart repair
. Open Bankart repair
. Latarjet procedure
. Arthroscopic remplissage alone
. Proximal humerus osteotomy

Correct Answer & Explanation

. Latarjet procedure


Explanation

The Latarjet procedure is indicated for patients with recurrent anterior shoulder instability and critical glenoid bone loss (typically greater than 20-25%). Soft tissue stabilization alone (Bankart repair) carries an unacceptably high failure rate in this setting.

Question 300

Topic: Shoulder & Hip Sports

A 55-year-old male laborer presents with chronic right shoulder pain and weakness. Examination reveals a positive Hornblower's sign and severe weakness in external rotation. MRI demonstrates an isolated, massive, and irreparable tear of the posterosuperior rotator cuff with advanced fatty infiltration. Which of the following tendon transfers is most appropriate to restore external rotation?

. Pectoralis major
. Latissimus dorsi
. Pectoralis minor
. Serratus anterior
. Subscapularis

Correct Answer & Explanation

. Latissimus dorsi


Explanation

A latissimus dorsi (or lower trapezius) tendon transfer is indicated to restore active external rotation and forward elevation in younger, active patients with massive, irreparable posterosuperior rotator cuff tears.