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Question 2501

Topic: Shoulder & Hip Sports

A 22-year-old male athlete presents with recurrent anterior shoulder dislocations. An MRI reveals an engaging Hill-Sachs lesion and anterior glenoid bone loss of 25%. What is the most appropriate surgical management for this patient to prevent recurrence?

. Arthroscopic Bankart repair
. Arthroscopic remplissage alone
. Latarjet procedure
. Open capsular shift
. Biceps tenodesis

Correct Answer & Explanation

. Arthroscopic Bankart repair


Explanation

A Latarjet procedure (coracoid transfer) is indicated for patients with recurrent anterior shoulder instability and significant glenoid bone loss (>20-25%). Soft tissue stabilization alone has unacceptably high failure rates in the setting of critical bone loss.

Question 2502

Topic: Shoulder & Hip Sports

A 45-year-old sustains a traumatic anterior shoulder dislocation. Post-reduction imaging shows an anterior glenoid bone loss of 30% and an engaging Hill-Sachs lesion. What is the most appropriate definitive surgical management to prevent recurrent instability?

. Arthroscopic Bankart repair with multiple suture anchors
. Open inferior capsular shift
. Arthroscopic Remplissage procedure alone
. Latarjet procedure (coracoid process transfer)
. Glenohumeral arthrodesis

Correct Answer & Explanation

. Arthroscopic Bankart repair with multiple suture anchors


Explanation

In the setting of anterior shoulder instability with critical glenoid bone loss (>20-25%), soft tissue repairs like the Bankart procedure have a high failure rate. A bony augmentation procedure, such as the Latarjet, is indicated.

Question 2503

Topic: Shoulder & Hip Sports

A 24-year-old athlete sustains a traction injury to the neck and shoulder. Clinical examination reveals profound weakness in shoulder abduction initiation and external rotation, with isolated atrophy of the supraspinatus and infraspinatus. Sensation over the lateral deltoid is intact. From which specific component of the brachial plexus does the affected nerve originate?

. Lateral cord
. Posterior cord
. Medial cord
. Upper trunk
. Lower trunk

Correct Answer & Explanation

. Lateral cord


Explanation

The patient exhibits a suprascapular nerve palsy, innervating the supraspinatus (abduction initiation) and infraspinatus (external rotation). Sensation over the lateral deltoid is intact, distinguishing it from an axillary nerve injury. The suprascapular nerve originates directly from the Upper Trunk (C5, C6) of the brachial plexus.

Question 2504

Topic: Shoulder & Hip Sports

A 25-year-old elite volleyball player complains of vague posterior shoulder pain and weakness. Physical examination reveals isolated weakness in external rotation with the arm at the side, but normal forward elevation and internal rotation. MRI reveals a paralabral cyst. Where is the cyst most likely located to produce this specific deficit?

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

Correct Answer & Explanation

. Suprascapular notch


Explanation

Entrapment of the suprascapular nerve at the spinoglenoid notch affects only the infraspinatus muscle, leading to isolated external rotation weakness. Entrapment at the more proximal suprascapular notch would affect both the supraspinatus and infraspinatus.

Question 2505

Topic: Shoulder & Hip Sports

In rotator cuff tear arthropathy, the massive, irreparable tearing of the supraspinatus and infraspinatus tendons leads to superior migration of the humeral head. This phenomenon is biomechanically attributed to the disruption of which of the following forces?

. Transverse force couple
. Coronal force couple
. Scapulothoracic rhythm
. Glenohumeral axial load
. Biceps brachii depression

Correct Answer & Explanation

. Transverse force couple


Explanation

Superior migration of the humeral head in rotator cuff arthropathy is due to the loss of the coronal plane force couple. Normally, the inferior pull of the rotator cuff balances the superior pull of the deltoid; loss of the cuff allows the deltoid to pull the humeral head superiorly against the acromion.

Question 2506

Topic: Shoulder & Hip Sports

A 22-year-old collegiate rugby player sustains a recurrent anterior shoulder dislocation. A 3D CT scan reveals 25% anterior glenoid bone loss. Which of the following surgical procedures is most appropriate to minimize recurrence?

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

Correct Answer & Explanation

. Arthroscopic Bankart repair with capsular shift


Explanation

In the setting of significant anterior glenoid bone loss (>20-25%), soft tissue stabilization alone (Bankart repair) has unacceptably high failure rates. A bone-block procedure, such as the Latarjet (coracoid transfer), is indicated to restore the glenoid articular arc and provide a sling effect via the conjoint tendon.

Question 2507

Topic: Shoulder & Hip Sports

A 45-year-old male weightlifter presents with vague posterior shoulder pain and isolated weakness in external rotation. An MRI demonstrates an isolated paralabral cyst in the spinoglenoid notch. Which muscle is most likely to show denervation changes on EMG?

. Supraspinatus
. Infraspinatus
. Teres minor
. Deltoid
. Subscapularis

Correct Answer & Explanation

. Supraspinatus


Explanation

A cyst at the spinoglenoid notch compresses the suprascapular nerve after it has already given off motor branches to the supraspinatus, leading to isolated denervation and weakness of the infraspinatus. Entrapment further proximally at the suprascapular notch would affect both the supraspinatus and infraspinatus.

Question 2508

Topic: Shoulder & Hip Sports

A 22-year-old male rugby player presents with recurrent anterior shoulder dislocations. CT imaging with 3D reconstruction reveals a 25% anterior glenoid bone loss. What is the most appropriate surgical management to prevent further recurrences in this high-demand contact athlete?

. Arthroscopic Bankart repair with superior labral repair
. Arthroscopic Bankart repair with Remplissage
. Open Latarjet procedure
. Open capsular shift
. Arthroscopic SLAP repair

Correct Answer & Explanation

. Arthroscopic Bankart repair with superior labral repair


Explanation

In patients with recurrent anterior shoulder instability and significant glenoid bone loss (>20-25%), especially high-demand contact athletes, isolated soft tissue stabilization (Bankart repair) has unacceptably high failure rates. The Latarjet procedure (coracoid process transfer) is the gold standard, restoring the glenoid bone track and providing a 'sling effect' from the conjoint tendon.

Question 2509

Topic: Shoulder & Hip Sports

A 13-year-old male baseball pitcher complains of progressive right shoulder pain during the deceleration phase of throwing. Radiographs demonstrate widening and lateral fragmentation of the proximal humeral physis. What is the most appropriate initial management?

. Operative stabilization with smooth K-wires
. Corticosteroid injection into the subacromial space
. Absolute rest from throwing for 3 months followed by a structured rehabilitation program
. Physical therapy emphasizing immediate strengthening of the rotator cuff while continuing to pitch
. MRI to evaluate for a concomitant SLAP tear before deciding on treatment

Correct Answer & Explanation

. Operative stabilization with smooth K-wires


Explanation

Little Leaguer's shoulder is an epiphysiolysis of the proximal humerus caused by repetitive rotational stress. It is a classic overuse injury in skeletally immature throwers. The mainstay of treatment is absolute cessation of throwing (usually for 3 months) until symptoms resolve and radiographic healing is noted, followed by physical therapy and a gradual return-to-throwing program.

Question 2510

Topic: Shoulder & Hip Sports

A 62-year-old male presents with a massive, irreparable posterosuperior rotator cuff tear with preserved subscapularis function. He has significant external rotation weakness and a positive hornblower's sign. He is not a candidate for reverse total shoulder arthroplasty due to medical comorbidities, but is medically optimized for soft tissue surgery. Which tendon transfer is most appropriate to restore external rotation?

. Pectoralis major transfer
. Latissimus dorsi transfer
. Lower trapezius transfer
. Levator scapulae transfer
. Rhomboid major transfer

Correct Answer & Explanation

. Pectoralis major transfer


Explanation

Lower trapezius transfer is increasingly preferred for massive irreparable posterosuperior rotator cuff tears to restore external rotation. It has a more favorable line of pull matching the infraspinatus compared to the latissimus dorsi, which requires a significant change in vector. Latissimus dorsi transfers historically have mixed outcomes and lower trapezius transfer with graft augmentation (e.g., Achilles tendon) has shown superior biomechanics for external rotation restoration in modern literature.

Question 2511

Topic: Shoulder & Hip Sports

A 26-year-old elite volleyball player presents with insidious onset, painless weakness of her hitting arm. Examination reveals isolated atrophy and weakness of the infraspinatus with normal supraspinatus strength. An MRI is most likely to show a cyst compressing the nerve at which location?

. Quadrilateral space
. Suprascapular notch
. Spinoglenoid notch
. Spiral groove
. Scalene triangle

Correct Answer & Explanation

. Quadrilateral space


Explanation

Compression of the suprascapular nerve at the spinoglenoid notch affects only the infraspinatus muscle. Compression more proximally at the suprascapular notch would denervate both the supraspinatus and infraspinatus.

Question 2512

Topic: Shoulder & Hip Sports

A 48-year-old heavy laborer presents with anterior shoulder pain and clicking. MRI arthrogram reveals a Type II SLAP tear. Conservative management has failed. To optimize his return to heavy labor and minimize postoperative stiffness, what is the best surgical procedure?

. Arthroscopic SLAP repair with suture anchors
. Biceps tenodesis
. Biceps tenotomy
. Labral debridement alone
. Coracoid transfer (Latarjet)

Correct Answer & Explanation

. Arthroscopic SLAP repair with suture anchors


Explanation

In older patients or manual laborers with a Type II SLAP tear, primary biceps tenodesis provides more predictable pain relief, a faster return to work, and lower rates of postoperative stiffness compared to SLAP repair.

Question 2513

Topic: Shoulder & Hip Sports

A 40-year-old male experiences a seizure and subsequently complains of shoulder pain with a locked internally rotated arm. Radiographs reveal a "lightbulb" sign on the AP view. What is the most likely associated osseous defect?

. Hill-Sachs lesion
. Reverse Hill-Sachs lesion
. Bony Bankart lesion
. Greater tuberosity fracture
. Coracoid process fracture

Correct Answer & Explanation

. Hill-Sachs lesion


Explanation

Seizures commonly cause posterior shoulder dislocations, recognized by the "lightbulb" sign due to internal rotation of the humeral head. This is frequently associated with an impaction fracture of the anteromedial humeral head, known as a reverse Hill-Sachs lesion.

Question 2514

Topic: Shoulder & Hip Sports

A 22-year-old rugby player presents with recurrent anterior shoulder dislocations. CT imaging demonstrates 25% anterior glenoid bone loss. A Latarjet procedure is planned. Which of the following provides the primary mechanism of stabilization in the Latarjet procedure at 90 degrees of abduction and external rotation?

. The bony block increasing the glenoid articular arc
. The capsule repaired to the native glenoid rim
. The sling effect of the conjoint tendon across the anterior-inferior capsule
. The tensioning of the coracoacromial ligament
. The transfer of the pectoralis minor tendon

Correct Answer & Explanation

. The bony block increasing the glenoid articular arc


Explanation

The Latarjet procedure relies on a 'triple blocking' effect. The sling effect of the conjoint tendon (and subscapularis) acting as a dynamic buttress across the anterior-inferior capsule is the primary stabilizer in the vulnerable abducted/externally rotated position, accounting for 50-70% of the restored stability. The bony block and capsular repair provide the remaining stability.

Question 2515

Topic: Shoulder & Hip Sports

A 62-year-old male presents with a massive, irreparable posterosuperior rotator cuff tear. He has profound weakness in external rotation and a positive external rotation lag sign. His subscapularis is fully intact, and he has active forward elevation to 130 degrees. Which of the following tendon transfers is most classically indicated for this specific pattern of deficit?

. Pectoralis major transfer
. Pectoralis minor transfer
. Latissimus dorsi transfer
. Trapezius transfer to the anterior humerus
. Biceps rerouting

Correct Answer & Explanation

. Pectoralis major transfer


Explanation

A latissimus dorsi tendon transfer is classically indicated for younger or active patients with a massive, irreparable posterosuperior rotator cuff tear (supraspinatus and infraspinatus) who have loss of active external rotation but an intact subscapularis and preserved deltoid function. Lower trapezius transfer is also an option, but among the choices, latissimus dorsi transfer is the classic, established procedure for this defect.

Question 2516

Topic: Shoulder & Hip Sports

A 25-year-old ice hockey player is diagnosed with Femoroacetabular Impingement (FAI). Radiographs and MRI demonstrate a prominent Cam lesion with an alpha angle of 68 degrees. In this patient, where is the acetabular cartilage delamination most likely to be located?

. Anterosuperior quadrant
. Posteroinferior quadrant
. Anteroinferior quadrant
. Directly at the fovea capitis
. Posterosuperior quadrant

Correct Answer & Explanation

. Anterosuperior quadrant


Explanation

Cam-type femoroacetabular impingement is caused by an aspherical femoral head-neck junction (high alpha angle) that forcefully enters the acetabulum during flexion and internal rotation. This creates shear forces that classically cause chondral delamination and labral tears in the anterosuperior quadrant of the acetabulum (from 1 to 3 o'clock position).

Question 2517

Topic: Shoulder & Hip Sports

A 45-year-old construction worker presents with chronic anterior shoulder pain and popping. MRI arthrogram reveals a Type II SLAP tear. Non-operative management has failed. Based on current evidence, which surgical intervention provides the most reliable return to work and clinical outcomes for this specific patient profile?

. Arthroscopic SLAP repair using suture anchors
. Arthroscopic debridement of the labrum without stabilization
. Biceps tenodesis
. Biceps tenotomy
. Coracoid transfer

Correct Answer & Explanation

. Arthroscopic SLAP repair using suture anchors


Explanation

In patients older than 40 years, particularly manual laborers or those with degenerative SLAP tears, biceps tenodesis has consistently shown superior clinical outcomes, lower complication rates, and a more reliable return to work compared to arthroscopic SLAP repair, which carries a high risk of postoperative stiffness and persistent pain in this demographic.

Question 2518

Topic: Shoulder & Hip Sports

A 20-year-old baseball pitcher presents with vague posterior shoulder pain during the late cocking phase of throwing. He exhibits a profound Glenohumeral Internal Rotation Deficit (GIRD). MRI arthrogram shows undersurface fraying of the supraspinatus and a posterosuperior labral tear. Which of the following is the primary pathophysiologic mechanism driving this condition (Internal Impingement)?

. Subacromial spurring causing external mechanical abrasion
. Laxity of the anterior capsule with compensatory posterior capsular contracture
. Contracture of the posteroinferior capsule leading to posterosuperior shift of the humeral head during maximum abduction/external rotation
. Hypertrophy of the coracoacromial ligament
. Congenital hypoplasia of the glenoid

Correct Answer & Explanation

. Subacromial spurring causing external mechanical abrasion


Explanation

Internal impingement in overhead throwing athletes is primarily driven by contracture of the posteroinferior capsule. This contracture leads to a Glenohumeral Internal Rotation Deficit (GIRD) and causes a posterosuperior shift of the humeral head during the late cocking phase (maximum abduction and external rotation). This shift pinches the posterosuperior rotator cuff between the greater tuberosity and the posterosuperior glenoid labrum.

Question 2519

Topic: Shoulder & Hip Sports

A 22-year-old collegiate football player undergoes evaluation for recurrent anterior shoulder instability. 3D CT reconstructions reveal 15% glenoid bone loss. An MRI confirms an anterior labral tear and a Hill-Sachs lesion. Applying the 'glenoid track' concept, the Hill-Sachs lesion is calculated to be 'off-track'. Which of the following surgical procedures is most indicated to minimize recurrence while minimizing bone-block morbidity?

. Arthroscopic Bankart repair alone
. Arthroscopic Bankart repair combined with Remplissage
. Open Latarjet procedure
. Proximal humerus derotational osteotomy
. Superior capsular reconstruction

Correct Answer & Explanation

. Arthroscopic Bankart repair alone


Explanation

According to the glenoid track paradigm, an 'off-track' Hill-Sachs lesion engages the anterior rim of the glenoid and carries a high risk of recurrent dislocation if treated with a Bankart repair alone. Because the glenoid bone loss is subcritical (<20%), a Latarjet is not strictly mandated. An arthroscopic Bankart repair combined with Remplissage (tenodesis of the infraspinatus/posterior capsule into the humeral defect) effectively converts the lesion to 'on-track' and provides excellent stability.

Question 2520

Topic: Shoulder & Hip Sports

A 25-year-old ice hockey player presents with chronic anterior groin pain exacerbated by hip flexion and internal rotation. Radiographs display a pistol-grip deformity of the proximal femur, and MRI reveals an alpha angle of 65 degrees. Where is the bony pathomorphology primarily located in this condition?

. Anterosuperior femoral head-neck junction
. Posterior acetabular wall
. Ligamentum teres foveal attachment
. Anterior inferior iliac spine
. Ischiofemoral space

Correct Answer & Explanation

. Anterosuperior femoral head-neck junction


Explanation

The patient has Cam-type femoroacetabular impingement (FAI), characterized by a non-spherical femoral head or decreased head-neck offset (pistol-grip deformity, alpha angle > 50-55 degrees). This extra bone is predominantly located at the anterosuperior aspect of the femoral head-neck junction and engages the anterosuperior acetabular rim during flexion and internal rotation, causing labral and chondral damage.