Orthopedic Board Review: Upper Extremity & TKA Complications

Question 1

A 28-year-old man presents with shoulder pain and weakness following a lymph node biopsy in the posterior triangle of his neck. On examination, his scapula is translated laterally and rotated downward. When asked to abduct his arm, the deformity wors

Accepted Answer

Trapezius; strengthening of the trapezius

Question 2

A 57-year-old man under workers' compensation underwent an open carpal tunnel release 1 year ago and has not returned to work because of persistent numbness and pain. His job requires him to use a rivet gun. Recent electromyography (EMG) and nerve co

Accepted Answer

Normal electromyogram and nerve conduction studies

Question 3

A 12-year-old elite baseball pitcher presents with a 4-month history of lateral elbow pain and a 15-degree extension deficit. He has failed 3 months of rest and physical therapy. Radiographs reveal a radiolucent lesion with a sclerotic margin on the

Accepted Answer

Arthroscopic debridement and microfracture or fragment fixation

Question 4

A 60-year-old man presents with a feeling of instability and inability to bear weight on his right leg 1 year after a primary total knee arthroplasty (TKA). He has a history of two prior surgeries for a quadriceps tendon rupture, both of which failed

Accepted Answer

Extensor mechanism allograft reconstruction

Question 5

A 35-year-old woman presents with right shoulder pain and weakness. On physical examination, the medial border of her right scapula is prominent, particularly when she is asked to push against a wall with her arms extended. Which of the following ner

Accepted Answer

Long thoracic nerve; ventral rami of C5, C6, C7

Question 6

Following total knee arthroplasty, a patient suffers a complete rupture of the patellar tendon. Which of the following biomechanical consequences is most directly responsible for the patient's clinical presentation of an extensor lag?

Accepted Answer

Disruption of the continuity between the quadriceps muscle and the tibial tubercle

Question 7

A 9-year-old male gymnast presents with insidious onset of lateral elbow pain and stiffness. Radiographs demonstrate sclerosis and fragmentation of the entire capitellum without a localized subchondral defect. MRI shows diffuse marrow edema of the ca

Accepted Answer

Panner's disease; rest and avoidance of weight-bearing on the upper extremities

Question 8

During an open carpal tunnel release, the surgeon carefully divides the transverse carpal ligament. To avoid injury to the recurrent motor branch of the median nerve, the surgeon must be aware of its most common anatomical variation. Which of the fol

Accepted Answer

Extraligamentous with recurrent course

Question 9

A 60-year-old man with a history of a right total knee arthroplasty presents with knee pain and a large effusion. His ESR is 46 mm/h and CRP is 2.04 mg/L. Aspiration of the knee yields hazy yellow fluid with a white blood cell (WBC) count of 120 cell

Accepted Answer

The synovial fluid analysis is inconsistent with PJI, and an aseptic etiology should be investigated.

Question 10

When performing an extensor mechanism allograft reconstruction for a chronic quadriceps tendon rupture after total knee arthroplasty, proper tensioning of the allograft is critical for a successful outcome. How should the allograft be tensioned durin

Accepted Answer

In full extension with maximum tension to prevent postoperative extensor lag

Orthopaedic Surgery Board Exam Review: ABOS Part I & AAOS OITE Prep Questions | Part 22210

Orthopedic Board Review: Upper Extremity & TKA Complications