Menu

Question 1461

Topic: Shoulder & Hip Sports

A 45-year-old male presents to the emergency department after a seizure with his left arm locked in internal rotation. Radiographs reveal a posterior shoulder dislocation. A subsequent CT scan demonstrates an anteromedial humeral head impression defect involving 45% of the articular surface. What is the most appropriate definitive management?

. Closed reduction and sling immobilization
. Open reduction and transfer of the lesser tuberosity (McLaughlin procedure)
. Latarjet procedure
. Shoulder arthroplasty
. Arthroscopic posterior labral repair

Correct Answer & Explanation

. Closed reduction and sling immobilization


Explanation

Posterior shoulder dislocations often result in a reverse Hill-Sachs lesion. When the articular defect exceeds 40%, joint-preserving procedures such as the McLaughlin procedure are prone to failure, and arthroplasty (hemiarthroplasty or total shoulder) is the recommended treatment.

Question 1462

Topic: Shoulder & Hip Sports

A 21-year-old collegiate rugby player with a history of recurrent anterior shoulder instability undergoes preoperative imaging, which reveals 25% anterior glenoid bone loss and a large, engaging Hill-Sachs lesion. Which of the following procedures is most appropriate to restore stability and prevent recurrence?

. Arthroscopic Bankart repair alone
. Arthroscopic capsulolabral plication
. Latarjet procedure (coracoid transfer)
. Arthroscopic remplissage alone
. Open inferior capsular shift

Correct Answer & Explanation

. Arthroscopic Bankart repair alone


Explanation

In the presence of critical glenoid bone loss (typically > 20-25%) and an engaging Hill-Sachs lesion, isolated soft tissue repairs (like a Bankart repair) have unacceptably high failure rates. A bony augmentation procedure, such as the Latarjet procedure, is required to restore the glenoid arc and confer stability.

Question 1463

Topic: Shoulder & Hip Sports

A 24-year-old male presents with recurrent anterior shoulder instability. Advanced imaging reveals a 30 percent anterior glenoid bone loss and an engaging Hill-Sachs lesion. Which of the following surgical procedures provides the lowest rate of recurrent instability for this patient?

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

Correct Answer & Explanation

. Arthroscopic Bankart repair


Explanation

In the setting of critical glenoid bone loss (>25%), soft tissue stabilization (Bankart repair) has an unacceptably high failure rate. A bone block procedure, such as the Latarjet (coracoid transfer), is required to restore the glenoid articular arc and provide a 'sling' effect.

Question 1464

Topic: Shoulder & Hip Sports

A 22-year-old professional rugby player presents with recurrent anterior shoulder instability. A 3D CT scan reveals 28% anteroinferior glenoid bone loss. Which of the following is the most appropriate surgical intervention to restore stability?

. Arthroscopic Bankart repair with suture anchors
. Open Bankart repair and inferior capsular shift
. Latarjet procedure (coracoid transfer)
. Arthroscopic remplissage
. Derotational proximal humerus osteotomy

Correct Answer & Explanation

. Arthroscopic Bankart repair with suture anchors


Explanation

The Latarjet procedure is indicated for recurrent anterior shoulder instability in the setting of critical glenoid bone loss (typically >20-25%). Isolated soft-tissue Bankart repairs in this setting have unacceptably high failure rates.

Question 1465

Topic: Shoulder & Hip Sports

A 24-year-old collegiate rugby player presents with recurrent anterior shoulder instability. A CT scan reveals 26% anterior glenoid bone loss.

What is the most appropriate definitive management?

. Arthroscopic Bankart repair with capsular shift
. Arthroscopic Remplissage
. Coracoid transfer to the anterior glenoid (Latarjet)
. Distal tibial allograft reconstruction
. Open Bankart repair

Correct Answer & Explanation

. Arthroscopic Bankart repair with capsular shift


Explanation

In the setting of critical anterior glenoid bone loss (>20-25%), arthroscopic soft-tissue stabilization has an unacceptably high failure rate. The Latarjet procedure (coracoid transfer) is the gold standard for restoring anterior stability through a triple-blocking effect.

Question 1466

Topic: Shoulder & Hip Sports

A 45-year-old man presents with severe shoulder pain and restricted external rotation following a grand mal seizure. Radiographs confirm a locked posterior shoulder dislocation with a reverse Hill-Sachs lesion involving 35% of the articular surface. Which of the following is the most appropriate surgical treatment?

. Closed reduction and spica cast immobilization
. Arthroscopic posterior labral repair
. Transfer of the lesser tuberosity into the defect
. Hemiarthroplasty
. Total shoulder arthroplasty

Correct Answer & Explanation

. Closed reduction and spica cast immobilization


Explanation

For locked posterior dislocations with an anteromedial humeral head defect (reverse Hill-Sachs) between 20% and 40%, a modified McLaughlin procedure (lesser tuberosity transfer) is indicated. Defects >40-50% generally require arthroplasty.

Question 1467

Topic: Shoulder & Hip Sports

A 32-year-old competitive volleyball player reports vague posterior shoulder pain and weakness with external rotation. Examination shows isolated atrophy of the infraspinatus. MRI reveals a multiloculated cystic structure at the spinoglenoid notch.

What associated intra-articular pathology is most likely present?

. Anterior Bankart lesion
. SLAP tear
. Subscapularis tear
. Adhesive capsulitis
. HAGL lesion

Correct Answer & Explanation

. Anterior Bankart lesion


Explanation

Spinoglenoid notch cysts causing isolated suprascapular nerve entrapment and infraspinatus atrophy are highly associated with posterosuperior labral (SLAP) tears. Repairing the labral tear allows decompression of the paralabral cyst.

Question 1468

Topic: Shoulder & Hip Sports

A 75-year-old man presents with chronic right shoulder pain and an inability to actively elevate his arm above 40 degrees. Passive range of motion is full. Radiographs reveal superior migration of the humeral head with an acromiohumeral interval of 3 mm. MRI confirms a massive, retracted tear of the supraspinatus and infraspinatus with Goutallier stage 4 fatty infiltration. His deltoid is functional. What is the most appropriate definitive management?

. Arthroscopic rotator cuff repair
. Latissimus dorsi tendon transfer
. Superior capsular reconstruction
. Anatomic total shoulder arthroplasty
. Reverse total shoulder arthroplasty

Correct Answer & Explanation

. Arthroscopic rotator cuff repair


Explanation

Reverse total shoulder arthroplasty is the treatment of choice for elderly patients with rotator cuff arthropathy and pseudoparalysis. It relies on a functional deltoid muscle to elevate the arm, bypassing the deficient rotator cuff.

Question 1469

Topic: Shoulder & Hip Sports

A 22-year-old collegiate linebacker presents with recurrent anterior shoulder instability. He has had 5 dislocations over the past two seasons. A 3D CT scan reveals 25% anterior glenoid bone loss. What is the most appropriate surgical management?

. Arthroscopic Bankart repair
. Open Bankart repair with inferior capsular shift
. Coracoid transfer to the anterior glenoid (Latarjet)
. Remplissage procedure
. Arthroscopic SLAP repair

Correct Answer & Explanation

. Arthroscopic Bankart repair


Explanation

The Latarjet procedure (coracoid transfer) is indicated for anterior shoulder instability in the setting of critical glenoid bone loss (>20-25%). Soft tissue repairs alone have an unacceptably high failure rate in this scenario.

Question 1470

Topic: Shoulder & Hip Sports

A 55-year-old man presents with anterior shoulder pain and weakness following a fall while water skiing. On physical examination, he has full passive range of motion. When the patient places the palm of his hand on his opposite shoulder, he is unable to resist the examiner pulling the hand away anteriorly. Which tendon is most likely injured?

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

Correct Answer & Explanation

. Supraspinatus


Explanation

The Bear Hug test is highly sensitive and specific for subscapularis tears. The patient's inability to maintain the hand on the opposite shoulder against resistance indicates subscapularis dysfunction.

Question 1471

Topic: Shoulder & Hip Sports

A 32-year-old elite volleyball player complains of vague posterior shoulder pain and weakness with external rotation. Examination shows isolated atrophy of the infraspinatus fossa with normal supraspinatus bulk. Which of the following is the most likely etiology?

. Quadrilateral space syndrome
. Parsonage-Turner syndrome
. Suprascapular nerve entrapment at the suprascapular notch
. Suprascapular nerve entrapment at the spinoglenoid notch
. Axillary nerve entrapment

Correct Answer & Explanation

. Quadrilateral space syndrome


Explanation

Entrapment of the suprascapular nerve at the spinoglenoid notch causes isolated infraspinatus weakness and atrophy, often secondary to a paralabral cyst. Entrapment at the suprascapular notch would affect both the supraspinatus and infraspinatus.

Question 1472

Topic: Shoulder & Hip Sports

A 24-year-old rock climber undergoes diagnostic arthroscopy for recurrent anterior shoulder instability. The surgeon identifies a deep, engaging posterolateral humeral head defect. To prevent this lesion from engaging the anterior glenoid rim during abduction and external rotation, the surgeon performs a Remplissage. Which structure is tenodesed into the humeral defect?

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

Correct Answer & Explanation

. Supraspinatus tendon


Explanation

The Remplissage procedure involves capsulotenodesis of the infraspinatus tendon and posterior capsule into an engaging Hill-Sachs defect. This converts an intra-articular defect into an extra-articular one and acts as a posterior tether.

Question 1473

Topic: Shoulder & Hip Sports

A 45-year-old recreational tennis player has persistent shoulder pain despite 6 months of conservative management. An MRI arthrogram reveals an articular-sided partial-thickness supraspinatus tendon tear measuring 7 mm in depth (approximately 60% of the tendon thickness). What is the recommended surgical management?

. Subacromial decompression alone
. Arthroscopic debridement of the tear without repair
. Completion of the tear and formal repair
. Biceps tenodesis
. Latissimus dorsi transfer

Correct Answer & Explanation

. Subacromial decompression alone


Explanation

Partial articular-sided supraspinatus tendon avulsion (PASTA) lesions that involve more than 50% of the tendon footprint are typically treated with completion of the tear and formal repair or an in-situ repair to restore mechanics.

Question 1474

Topic: Shoulder & Hip Sports

A 45-year-old manual laborer presents with chronic shoulder weakness. MRI demonstrates a massive, retracted supraspinatus and infraspinatus tear with Goutallier grade 4 fatty infiltration. The subscapularis and teres minor are intact, and there is no glenohumeral arthritis. Which of the following is the most appropriate surgical option?

. Arthroscopic primary rotator cuff repair
. Reverse total shoulder arthroplasty
. Lower trapezius or latissimus dorsi tendon transfer
. Superior capsule reconstruction
. Pectoralis major tendon transfer

Correct Answer & Explanation

. Arthroscopic primary rotator cuff repair


Explanation

In a young, active patient with an irreparable posterosuperior rotator cuff tear, an intact subscapularis, and no glenohumeral arthritis, a lower trapezius or latissimus dorsi tendon transfer is the most appropriate biological salvage procedure.

Question 1475

Topic: Shoulder & Hip Sports

A 22-year-old rugby player has recurrent anterior shoulder instability. CT scan indicates 28% anterior glenoid bone loss.

What is the most appropriate management?

. Arthroscopic Bankart repair with suture anchors
. Open Bankart repair and capsulorrhaphy
. Coracoid transfer (Latarjet procedure)
. Arthroscopic Remplissage without Bankart repair
. Iliac crest bone block to the posterior glenoid

Correct Answer & Explanation

. Arthroscopic Bankart repair with suture anchors


Explanation

Critical anterior glenoid bone loss (>20-25%) in a contact athlete is best treated with a bony augmentation procedure, most commonly the Latarjet procedure. Arthroscopic soft-tissue stabilization alone in this setting has an unacceptably high recurrence rate.

Question 1476

Topic: Shoulder & Hip Sports

A 35-year-old man presents with a locked posterior shoulder dislocation after a seizure. CT scan confirms a reverse Hill-Sachs lesion involving 25% of the anterior articular surface. What is the most appropriate surgical treatment?

. Closed reduction and spica casting in internal rotation
. Arthroscopic posterior labral repair only
. Transfer of the lesser tuberosity into the defect (McLaughlin procedure)
. Humeral head resurfacing (Hemiarthroplasty)
. Total shoulder arthroplasty

Correct Answer & Explanation

. Closed reduction and spica casting in internal rotation


Explanation

For a reverse Hill-Sachs lesion involving 20-40% of the articular surface, transfer of the lesser tuberosity and subscapularis into the defect (modified McLaughlin) is indicated to prevent engagement and recurrent posterior instability.

Question 1477

Topic: Shoulder & Hip Sports

A 62-year-old male presents with weakness in internal rotation. On physical exam, he is instructed to place his hand on his contralateral shoulder and resist the examiner's attempt to pull the hand away. Which specific structure is being isolated and tested?

. Upper border of the subscapularis
. Lower border of the subscapularis
. Teres major
. Teres minor
. Latissimus dorsi

Correct Answer & Explanation

. Upper border of the subscapularis


Explanation

This describes the Bear Hug test, which is highly sensitive and specific for isolating lesions of the upper portion of the subscapularis tendon. The Lift-off test primarily isolates the lower portion.

Question 1478

Topic: Shoulder & Hip Sports

A 45-year-old man presents with anterior shoulder pain and weakness after a fall with his arm externally rotated. He has a positive bear-hug test and increased passive external rotation compared to the contralateral side. What is the most likely diagnosis?

. Supraspinatus tear
. Subscapularis tear
. Pectoralis major rupture
. Anterior capsular sprain
. Biceps tendon rupture

Correct Answer & Explanation

. Supraspinatus tear


Explanation

The bear-hug and belly-press tests specifically evaluate the subscapularis. Increased passive external rotation also indicates loss of the anterior restraint normally provided by the subscapularis tendon.

Question 1479

Topic: Shoulder & Hip Sports

A 22-year-old rugby player has recurrent anterior shoulder instability. A CT scan reveals 26% anterior glenoid bone loss. Which of the following is the most appropriate surgical intervention?

. Arthroscopic Bankart repair
. Open Bankart repair
. Arthroscopic Remplissage
. Coracoid transfer (Latarjet)
. Proximal humerus osteotomy

Correct Answer & Explanation

. Arthroscopic Bankart repair


Explanation

Anterior glenoid bone loss greater than 20-25% is a contraindication to isolated soft-tissue repair. A bony augmentation procedure like the Latarjet is required to adequately restore stability.

Question 1480

Topic: Shoulder & Hip Sports

A 35-year-old man presents to the ER after a generalized seizure. His arm is locked in internal rotation. Radiographs show a "lightbulb" sign on the AP view. What is the most common associated bony defect?

. Bankart lesion
. Anterior glenoid rim fracture
. Reverse Hill-Sachs lesion
. Greater tuberosity fracture
. Coracoid fracture

Correct Answer & Explanation

. Bankart lesion


Explanation

Seizures commonly cause posterior shoulder dislocations, characterized by locked internal rotation and a "lightbulb" appearance of the humeral head. The associated impaction fracture on the anteromedial humeral head is a reverse Hill-Sachs lesion.