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PMID: 17478751 J Am Acad Orthop Surg. 2007 May;15(5):281-9.

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Neurovascular injuries to the athlete's shoulder: part II.

Aval SM Durand P Jr Shankwiler JA.

Aval SM, JAAOS 2007

Pubmed

Athletes are at particular risk of compromise of the neurovascular structures of the shoulder-specifically, neurovascular conditions distal to the brachial plexus. These conditions include thoracic outlet syndrome, axillary artery occlusion, effort thrombosis, suprascapular nerve entrapment, quadrilateral space syndrome, and complex regional pain syndrome. When diagnosed properly and in a timely fashion, function of the limb can be preserved. To accomplish this, the physician must possess a detailed understanding of the various clinical presentations, diagnostic techniques, and treatment options.

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Cards

1 of 0

(SBQ19HK.4) A 17-year-old male high school baseball pitcher presents to your office complaining of posterior shoulder pain and weakness. His father says his coaches have reported a decrease in velocity as of late. On clinical examination he has an abnormal O’Brien’s test and weakness in external rotation with the arm by his side. He has 5/5 strength with empty can testing. Radiographs do not show any abnormalities and MRI is seen in Figure A. Based on his diagnosis, which muscle would be affected and at risk for atrophy without intervention?

QID: 216790

FIGURES:

A

Type & Select Correct Answer

Type in at least one full word to see suggestions list

Supraspinatus

8%

(69/833)

Infraspinatus

86%

(715/833)

Teres minor

4%

(37/833)

Deltoid

1%

(5/833)

Serratus anterior

0%

(2/833)

Select Answer to see Preferred Response

SUBMIT RESPONSE 2 Review Tested Concept Review Full Topic

(OBQ18.232) Which of the following correctly pairs the anatomical space of the shoulder with its contents?

QID: 213128

Type & Select Correct Answer

Type in at least one full word to see suggestions list

Quadrangular space; radial nerve and profunda brachii artery

3%

(76/2822)

Quadrangular space; axillary nerve and scapular circumflex artery

4%

(115/2822)

Quadrangular space; axillary nerve and posterior humeral circumflex artery

83%

(2330/2822)

Triangular space; axillary nerve and posterior humeral circumflex artery

6%

(157/2822)

Triangular space; radial nerve and profunda brachii artery

4%

(111/2822)

Select Answer to see Preferred Response

SUBMIT RESPONSE 3 Review Tested Concept Review Full Topic

(SBQ16SM.4) A 27-year-old volleyball player complains of worsening right posterolateral shoulder pain and weakness for the past 4 weeks. She denies any injury to the shoulder. Her examination reveals 5/5 muscle strength with shoulder elevation, abduction and internal rotation. She is found to have weakness in external rotation with the elbow at the side and gross inspection is remarkable for mild atrophy along the posterior scapula. She has an unremarkable lift-off test. Which nerve and corresponding site of compression is most likely responsible?

QID: 211150

Type & Select Correct Answer

Type in at least one full word to see suggestions list

Suprascapular nerve and Suprascapular notch

11%

(201/1808)

Axillary nerve and Quadrilateral space

4%

(73/1808)

Suprascapular nerve and Spinoglenoid notch

82%

(1483/1808)

Upper subscapular nerve and Spinoglenoid notch

2%

(41/1808)

Radial nerve and Triangular interval

0%

(1/1808)

Select Answer to see Preferred Response

SUBMIT RESPONSE 3 Review Tested Concept Review Full Topic

(OBQ04.99) A football player is diagnosed as having a "stinger" by the athletic trainer. Which of the following acute transient findings would be consistent with that diagnosis?

QID: 1204

Type & Select Correct Answer

Type in at least one full word to see suggestions list

Bilateral upper extremity sensory symptoms

6%

(134/2173)

Bilateral upper extremity weakness

2%

(34/2173)

Unilateral upper and lower extremity sensory and motor symptoms

4%

(90/2173)

Unilateral upper and lower extremity weakness only

1%

(15/2173)

Unilateral upper extremity pain and weakness

87%

(1881/2173)

Select Answer to see Preferred Response

SUBMIT RESPONSE 5 Review Tested Concept Review Full Topic