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Question 1721

Topic: Shoulder & Hip Sports

A 19-year-old female gymnast presents with bilateral shoulder pain and a sensation of 'slipping.' Clinical examination demonstrates a positive sulcus sign and apprehension in multiple positions. Initial management has included 6 months of supervised physical therapy focusing on periscapular strengthening, with no improvement.

What is the most appropriate next step in management?

. Open anterior capsulolabral shift
. Arthroscopic capsular plication
. Latarjet procedure
. Remplissage procedure
. Thermal capsulorrhaphy

Correct Answer & Explanation

. Arthroscopic capsular plication


Explanation

For multidirectional instability (MDI) that has failed an extensive (typically >6 months) course of physical therapy, capsular shift or plication is indicated. Arthroscopic capsular plication has become the modern gold standard, replacing open capsular shifts, yielding equivalent outcomes with less morbidity. The Latarjet procedure is reserved for recurrent anterior instability with significant anterior glenoid bone loss. Thermal capsulorrhaphy is no longer recommended due to high failure rates and capsular necrosis.

Question 1722

Topic: Shoulder & Hip Sports

A 22-year-old female dancer complains of a painful, audible 'snap' in her lateral right hip when extending her hip from a flexed position. Clinical examination demonstrates a reproducible snap over the greater trochanter. An ultrasound-guided corticosteroid injection provided transient relief. What anatomical structure is most commonly implicated in this specific condition?

. Iliopsoas tendon
. Rectus femoris tendon
. Iliotibial band
. Ischiofemoral ligament
. Gluteus medius tendon

Correct Answer & Explanation

. Iliotibial band


Explanation

This clinical scenario describes external snapping hip syndrome (coxa saltans externa), which is caused by the iliotibial band (ITB) or the anterior border of the gluteus maximus snapping over the greater trochanter during hip flexion and extension. Internal snapping hip is caused by the iliopsoas tendon snapping over the iliopectineal eminence or the femoral head.

Question 1723

Topic: Shoulder & Hip Sports

A 38-year-old male construction worker presents with deep anterior shoulder pain, particularly when lifting heavy objects. An MRI reveals a type II SLAP (Superior Labrum Anterior and Posterior) tear. After failing 4 months of conservative management, he undergoes arthroscopic evaluation. Given his age and occupation, what is the most appropriate surgical management for an isolated type II SLAP tear?

. SLAP repair with suture anchors
. Biceps tenotomy
. Biceps tenodesis
. Debridement of the superior labrum only
. Coracoid transfer (Latarjet)

Correct Answer & Explanation

. Biceps tenodesis


Explanation

In patients over the age of 35-40, particularly those with heavy manual labor occupations, primary biceps tenodesis is preferred over SLAP repair for type II SLAP tears. SLAP repairs in this older demographic have significantly higher rates of postoperative stiffness, residual pain, and subsequent revision surgery. Biceps tenodesis provides reliable pain relief while maintaining strength and avoiding the 'Popeye' deformity associated with tenotomy.

Question 1724

Topic: Shoulder & Hip Sports

A 19-year-old female collegiate gymnast presents with chronic, bilateral shoulder pain and a sensation of her shoulders 'sliding out of place' during routines. She denies any specific traumatic event. Physical examination reveals a 2+ sulcus sign bilaterally, positive apprehension, and positive relocation tests. If this patient fails a comprehensive 6-month physical therapy program emphasizing periscapular stabilization and proceeds to surgical intervention, what is the primary pathoanatomic target that must be addressed?

. A detached anterior labrum with associated periosteal stripping (Bankart lesion)
. An avulsed anteroinferior labrum with a medially displaced periosteal sleeve (ALPSA lesion)
. Rotator interval laxity and a patulous inferior capsule
. A bony defect of the anteroinferior glenoid exceeding 20% of the glenoid width
. A superior labral tear from anterior to posterior (SLAP type II)

Correct Answer & Explanation

. Rotator interval laxity and a patulous inferior capsule


Explanation

This patient's presentation is classic for multidirectional instability (MDI), which is primarily characterized by generalized capsular redundancy rather than a specific traumatic labral detachment. The essential pathoanatomy in MDI is a patulous inferior capsule and a widened rotator interval. Surgical management, if conservative measures fail, typically involves an arthroscopic or open inferior capsular shift to reduce capsular volume, combined with closure or plication of the rotator interval.

Question 1725

Topic: Shoulder & Hip Sports

A 22-year-old rugby player undergoes an open Latarjet procedure for recurrent anterior shoulder instability with significant anterior glenoid bone loss. Postoperatively, he has profound weakness in shoulder external rotation, but abduction initiation and elbow flexion are intact. Sensation over the lateral shoulder is normal. Which nerve was most likely injured, and what is the typical mechanism in this setting?

. Axillary nerve; during aggressive splitting of the subscapularis
. Musculocutaneous nerve; during vigorous retraction of the conjoined tendon
. Suprascapular nerve; due to posterior screw over-penetration injuring the nerve at the spinoglenoid notch
. Radial nerve; during exposure of the inferior glenoid neck
. Long thoracic nerve; during dissection medial to the coracoid process

Correct Answer & Explanation

. Suprascapular nerve; due to posterior screw over-penetration injuring the nerve at the spinoglenoid notch


Explanation

The patient exhibits isolated weakness in external rotation (infraspinatus) with intact abduction initiation (supraspinatus) and intact sensation. This points to a distal injury of the suprascapular nerve at the spinoglenoid notch. During a Latarjet procedure, if the coracoid graft screws are too long and directed too posteriorly or inferiorly, they can penetrate the posterior cortex of the glenoid neck and directly injure the suprascapular nerve as it courses toward the infraspinatus fossa. Musculocutaneous nerve injury is a common complication but would present with elbow flexion weakness. Axillary nerve injury would result in deltoid weakness and lateral sensory loss.

Question 1726

Topic: Shoulder & Hip Sports

A 45-year-old recreational tennis player presents with persistent deep shoulder pain. MRI arthrogram demonstrates an isolated Type II superior labrum anterior and posterior (SLAP) tear. He has failed 6 months of conservative management. According to current evidence-based guidelines, which surgical intervention provides the most reliable clinical outcomes and lowest revision rate for this patient demographic?

. Arthroscopic SLAP repair with suture anchors
. Biceps tenodesis
. Arthroscopic debridement of the superior labrum
. Biceps tenotomy
. Coracoid transfer (Latarjet)

Correct Answer & Explanation

. Biceps tenodesis


Explanation

In patients older than 35-40 years with a symptomatic Type II SLAP tear, primary biceps tenodesis has been shown to have superior clinical outcomes, more reliable pain relief, and significantly lower revision and complication rates compared to arthroscopic SLAP repair. SLAP repair in this older demographic has a notably high risk of postoperative stiffness, persistent pain, and subsequent need for revision surgery.

Question 1727

Topic: Shoulder & Hip Sports

A 21-year-old collegiate rugby player presents with recurrent anterior shoulder instability, reporting four dislocation events this season. A representative imaging study demonstrates an 'off-track' engaging Hill-Sachs lesion and 22% anterior glenoid bone loss.

What is the most appropriate definitive management to minimize the risk of recurrence?

. Arthroscopic Bankart repair with superior capsule reconstruction
. Arthroscopic Bankart repair with Remplissage
. Open Bankart repair and inferior capsular shift
. Coracoid transfer to the anterior glenoid (Latarjet procedure)
. Arthroscopic labral repair using a minimum of 5 suture anchors

Correct Answer & Explanation

. Coracoid transfer to the anterior glenoid (Latarjet procedure)


Explanation

The patient has significant anterior glenoid bone loss (>20%) and an engaging, off-track Hill-Sachs lesion. Isolated soft-tissue procedures (arthroscopic or open Bankart repairs) have an unacceptably high failure rate in the setting of critical bone loss (>15-20%). The Latarjet procedure (transfer of the coracoid process with the attached conjoined tendon to the anterior glenoid) provides a triple blocking effect (bone block, sling effect of the conjoined tendon, and capsular repair) and is the standard of care for collision athletes with significant bipolar bone loss.

Question 1728

Topic: Shoulder & Hip Sports

A 26-year-old professional hockey player presents with chronic groin pain exacerbated by hip flexion, adduction, and internal rotation. Radiographs demonstrate an alpha angle of 65 degrees on the Dunn lateral view. Which of the following best describes the pathophysiology and typical location of the primary osseous deformity?

. Pincer impingement due to focal retroversion of the acetabulum
. Cam impingement due to an osseous prominence at the anterosuperior femoral head-neck junction
. Cam impingement due to an osseous prominence at the posteroinferior femoral head-neck junction
. Pincer impingement due to global acetabular overcoverage
. Combined impingement primarily driven by excessive femoral anteversion

Correct Answer & Explanation

. Cam impingement due to an osseous prominence at the anterosuperior femoral head-neck junction


Explanation

An alpha angle greater than 50-55 degrees is diagnostic of Cam-type femoroacetabular impingement (FAI). Cam morphology is characterized by an aspherical femoral head with an osseous bump or decreased offset, most commonly located at the anterosuperior aspect of the femoral head-neck junction. During hip flexion and internal rotation, this prominence is driven into the acetabulum, causing shear forces on the anterosuperior labrum and adjacent articular cartilage. Pincer impingement refers to acetabular overcoverage, not femoral-sided deformities.

Question 1729

Topic: Shoulder & Hip Sports

A 32-year-old male weightlifter presents with vague posterior shoulder pain and selective weakness in external rotation. An MRI reveals a large paralabral cyst located strictly in the spinoglenoid notch, extending from a posterior superior labral tear. Based on the anatomic location of this cyst, which examination finding is most expected?

. Weakness in abduction with isolated atrophy of the supraspinatus
. Weakness in internal rotation with a positive lift-off test
. Weakness in external rotation with isolated atrophy of the infraspinatus
. Paresthesias in the lateral aspect of the upper arm
. Winging of the scapula with forward elevation

Correct Answer & Explanation

. Weakness in external rotation with isolated atrophy of the infraspinatus


Explanation

Paralabral cysts associated with superior or posterior labral tears can compress the suprascapular nerve. The location of the compression dictates the clinical deficit. Compression at the suprascapular notch affects both the supraspinatus and infraspinatus muscles. However, compression strictly at the spinoglenoid notch affects the nerve after it has already given off its motor branches to the supraspinatus. Therefore, it results in isolated denervation and atrophy of the infraspinatus, leading to weakness in external rotation with preserved abduction.

Question 1730

Topic: Shoulder & Hip Sports

A 42-year-old recreational tennis player presents with vague, deep anterior shoulder pain exacerbated by overhead serving. Examination reveals a positive O'Brien's test and dynamic labral shear test. MRI arthrogram confirms an isolated type II SLAP tear. After 6 months of failed conservative management, surgical intervention is planned. Based on recent literature for patients in this age demographic (>40 years), which procedure is recommended to minimize postoperative stiffness and maximize the rate of return to sport?

. Arthroscopic SLAP repair using multiple knotless suture anchors
. Arthroscopic debridement of the superior labrum without stabilization
. Subpectoral or arthroscopic biceps tenodesis
. Biceps tenotomy without tenodesis
. Arthroscopic capsulorrhaphy and coracoid transfer

Correct Answer & Explanation

. Subpectoral or arthroscopic biceps tenodesis


Explanation

In patients older than 35 to 40 years of age with symptomatic Type II SLAP tears that fail conservative treatment, biceps tenodesis is highly favored over SLAP repair. Studies have shown that SLAP repair in this older demographic is associated with higher rates of postoperative stiffness, lower patient satisfaction, and a higher rate of revision surgery compared to primary biceps tenodesis.

Question 1731

Topic: Shoulder & Hip Sports

A 22-year-old collegiate rugby player presents with recurrent anterior shoulder instability. A 3D reconstructed CT scan reveals a 26% anterior glenoid bone loss with an engaging Hill-Sachs lesion. What is the most appropriate surgical management to minimize his risk of recurrent instability?

. Arthroscopic Bankart repair with suture anchors
. Arthroscopic Bankart repair with remplissage
. Latarjet procedure (coracoid transfer)
. Open capsular shift
. Humeral head osteochondral allograft

Correct Answer & Explanation

. Latarjet procedure (coracoid transfer)


Explanation

Critical anterior glenoid bone loss (>20-25%) in a contact athlete is an indication for a bony augmentation procedure. Soft-tissue repairs alone (like a Bankart repair) have an unacceptably high failure rate in the setting of critical bone loss. The Latarjet procedure transfers the coracoid process and the attached conjoint tendon to the anterior glenoid, providing both a bony block and a dynamic sling effect.

Question 1732

Topic: Shoulder & Hip Sports

A 24-year-old minor league baseball pitcher presents with chronic posterior shoulder pain during the late cocking phase of throwing. Physical examination reveals a 25-degree loss of internal rotation (GIRD) compared to the contralateral shoulder, with normal total arc of motion.

What is the most appropriate initial management for this condition?

. Arthroscopic posteroinferior capsular release
. Arthroscopic superior labrum anterior-posterior (SLAP) repair
. Physical therapy focusing on sleeper stretches
. Subacromial corticosteroid injection
. Open anterior capsulorrhaphy

Correct Answer & Explanation

. Physical therapy focusing on sleeper stretches


Explanation

Glenohumeral internal rotation deficit (GIRD) is common in overhead throwing athletes and is caused by a contracture of the posterior band of the inferior glenohumeral ligament (posterior capsule). This leads to a posterosuperior shift of the humeral head during the cocking phase, causing internal impingement. Initial management is always nonoperative, primarily focusing on stretching the posterior capsule using the "sleeper stretch."

Question 1733

Topic: Shoulder & Hip Sports

A 26-year-old ice hockey player presents with chronic groin pain exacerbated by hip flexion and internal rotation. Radiographs demonstrate a pistol grip deformity and an alpha angle of 70 degrees. This specific morphologic abnormality primarily leads to articular cartilage damage in which region of the acetabulum?

. Posteroinferior
. Posterosuperior
. Anterosuperior
. Anteroinferior
. Central (Cotylond) fossa

Correct Answer & Explanation

. Anterosuperior


Explanation

The scenario describes a CAM-type femoroacetabular impingement (FAI), characterized by a nonspherical femoral head-neck junction (pistol grip deformity, elevated alpha angle >50-55 degrees). During deep hip flexion and internal rotation, the aspherical CAM lesion engages the acetabulum, causing shear stress and delamination of the cartilage and labrum primarily in the anterosuperior quadrant of the acetabulum.

Question 1734

Topic: Shoulder & Hip Sports

A 22-year-old rugby player presents with recurrent anterior shoulder instability following an initial dislocation sustained two years ago. A 3D CT scan demonstrates 28% anterior glenoid bone loss. Which of the following is the most appropriate surgical management to minimize his risk of recurrent instability?

. Arthroscopic Bankart repair
. Arthroscopic Bankart repair with remplissage
. Latarjet procedure
. Open Bankart repair
. Putti-Platt procedure

Correct Answer & Explanation

. Latarjet procedure


Explanation

Critical glenoid bone loss (>20-25%) in a collision athlete with recurrent anterior shoulder instability is a strong contraindication to an isolated arthroscopic or open Bankart repair, as the recurrence rate is unacceptably high. The Latarjet procedure (coracoid transfer to the anterior glenoid) is the most appropriate treatment. It restores the glenoid articular arc and provides a dynamic 'sling' effect via the conjoint tendon to prevent anterior translation.

Question 1735

Topic: Shoulder & Hip Sports

A 24-year-old professional hockey player presents with an insidious onset of groin pain that is exacerbated by hip flexion and internal rotation. Radiographs demonstrate an elevated alpha angle of 68 degrees and a prominent osseous bump at the anterolateral femoral head-neck junction. During dynamic motion, what is the primary pathomechanism of acetabular cartilage damage in this condition?

. Linear contusion of the labrum from direct abutment
. Shear forces causing delamination of the anterosuperior acetabular cartilage
. Avascular necrosis due to disruption of the medial epiphyseal vessels
. Edge-loading secondary to underlying acetabular dysplasia
. Ischiofemoral impingement compressing the quadratus femoris

Correct Answer & Explanation

. Shear forces causing delamination of the anterosuperior acetabular cartilage


Explanation

The patient has Cam-type femoroacetabular impingement (FAI), characterized by an aspherical femoral head-neck junction (elevated alpha angle). During hip flexion and internal rotation, this non-spherical portion forcefully enters the acetabulum, creating outside-in shear forces. This specific mechanism leads to chondral delamination at the anterosuperior acetabulum and subsequent separation of the labrum from the transitional zone cartilage. Pincer FAI, in contrast, typically causes direct, linear compression/contusion of the labrum.

Question 1736

Topic: Shoulder & Hip Sports

A 23-year-old male competitive rugby player presents with recurrent anterior shoulder instability. He has experienced 4 dislocations this season. Advanced imaging demonstrates an anterior glenoid bone loss of 28% and an engaging 'off-track' Hill-Sachs lesion. Which of the following is the most appropriate surgical management?

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

Correct Answer & Explanation

. Open Latarjet procedure


Explanation

In young, collision athletes with significant anterior glenoid bone loss (>20-25%) and an 'off-track' or engaging Hill-Sachs lesion, an isolated soft tissue stabilization (Bankart repair) has an unacceptably high failure rate. The Latarjet procedure (coracoid transfer) addresses the glenoid bone loss and provides a sling effect via the conjoint tendon, making it the procedure of choice in this scenario. Remplissage is typically indicated for off-track Hill-Sachs lesions in the setting of subcritical glenoid bone loss (<15-20%).

Question 1737

Topic: Shoulder & Hip Sports

A 26-year-old professional hockey player presents with chronic, deep anterior groin pain exacerbated by hip flexion and internal rotation. Radiographs demonstrate a pistol-grip deformity and an alpha angle of 65 degrees on the Dunn lateral view. Which of the following pathophysiological mechanisms is most responsible for the articular cartilage damage in this condition?

. Pincer impingement causing global joint overcoverage and posteroinferior chondral wear
. Shear forces at the chondrolabral junction caused by an aspherical femoral head entering the acetabulum
. Direct avulsion of the ligamentum teres from the fovea capitis
. Dysplastic acetabulum leading to edge-loading and superior labral tears
. Ischemic necrosis of the femoral head due to recurrent microtrauma

Correct Answer & Explanation

. Shear forces at the chondrolabral junction caused by an aspherical femoral head entering the acetabulum


Explanation

The patient has Cam-type femoroacetabular impingement (FAI), characterized by an aspherical femoral head (pistol-grip deformity, alpha angle > 55 degrees). During hip flexion and internal rotation, the non-spherical cam lesion engages the acetabular rim, causing shear forces that delaminate the articular cartilage from the underlying subchondral bone, typically at the anterosuperior chondrolabral junction. Pincer impingement is characterized by acetabular overcoverage, leading to linear impact at the rim and 'contre-coup' cartilage lesions posteroinferiorly.

Question 1738

Topic: Shoulder & Hip Sports

A 20-year-old collegiate rugby player with a history of recurrent anterior shoulder instability presents after another dislocation. Imaging reveals a bipolar bone loss condition with 25% glenoid bone loss and an off-track Hill-Sachs lesion. A Latarjet procedure is planned. Which of the following describes the most significant primary stabilizing mechanism of the Latarjet procedure?

. The conjoint tendon acting as a dynamic sling in abduction and external rotation
. Restoration of the native glenoid labrum with the transferred coracoacromial ligament
. Filling the Hill-Sachs defect with the transferred coracoid process
. Deepening of the glenoid concavity by transferring the pectoralis minor
. Medialization of the subscapularis footprint to restrict excessive external rotation

Correct Answer & Explanation

. The conjoint tendon acting as a dynamic sling in abduction and external rotation


Explanation

The Latarjet procedure provides stability through a 'triple effect'. The most significant stabilizing factor is the dynamic 'sling effect' of the conjoint tendon (short head of the biceps and coracobrachialis) which tension across the anterior-inferior capsule when the arm is positioned in abduction and external rotation. The other two effects are the bone block effect (restoring the anteroposterior diameter of the glenoid) and the capsule repair to the stump of the coracoacromial (CA) ligament.

Question 1739

Topic: Shoulder & Hip Sports

A 19-year-old collegiate gymnast presents with bilateral shoulder pain and a sensation of the shoulders 'slipping out' during her routines. She denies any specific traumatic event. On examination, she has 3+ sulcus signs bilaterally and positive apprehension tests that spontaneously reduce when she relaxes. Radiographs and MRI are unremarkable. What is the most appropriate initial management?

. Arthroscopic capsular plication
. Open inferior capsular shift
. Supervised rehabilitation focusing on periscapular and rotator cuff strengthening
. Thermal capsulorrhaphy
. Latarjet procedure

Correct Answer & Explanation

. Supervised rehabilitation focusing on periscapular and rotator cuff strengthening


Explanation

This patient presents with classic signs of multidirectional instability (MDI) of the shoulder, characterized by generalized laxity, atraumatic onset, and bilateral involvement. The cornerstone and first-line treatment for MDI is an extensive, supervised physical therapy program focusing on strengthening the dynamic stabilizers of the shoulder (the rotator cuff and periscapular musculature). Operative management is reserved only for patients who fail a prolonged trial (usually >6 months) of nonoperative management.

Question 1740

Topic: Shoulder & Hip Sports

A 28-year-old male hockey player presents with chronic, deep groin pain exacerbated by deep hip flexion and internal rotation. An AP pelvis radiograph demonstrates a 'crossover sign.' This radiographic finding is most indicative of which of the following pathomorphologies?

. Cam impingement due to an aspherical femoral head
. Acetabular retroversion causing Pincer impingement
. Excessive femoral anteversion
. Subspine impingement from a prominent anterior inferior iliac spine (AIIS)
. Ischiofemoral impingement

Correct Answer & Explanation

. Acetabular retroversion causing Pincer impingement


Explanation

A crossover sign is present on an AP pelvis radiograph when the anterior rim of the acetabulum crosses the line of the posterior rim. This is indicative of focal or global acetabular retroversion, which leads to over-coverage of the femoral head and Pincer-type femoroacetabular impingement (FAI). Cam impingement is associated with an aspherical femoral head (decreased head-neck offset) and a high alpha angle.