In Shetler 2022 et al., on radial head OCD, what was the main advantage of the lateral arthroscopic approach over the standard medial approach?
A. Improved access to medial coronoid lesions
B. Better visualization of the humeral condyle
C. Decreased surgical time
D. Improved access to the caudolateral radial head
E. Lower risk of infection
Answer: Improved access to the caudolateral radial head
Explanation: Medial portals did not allow access to the OCD lesion, which was located on the caudolateral aspect of the radial head.
In Shetler 2022 et al., on radial head OCD, which of the following was reported at the 5-month postoperative follow-up?
A. Mild persistent lameness
B. Partial improvement with continued elbow pain
C. Marked muscle atrophy of the thoracic limb
D. Complete resolution of lameness and elbow pain
E. Progression of elbow dysplasia
Answer: Complete resolution of lameness and elbow pain
Explanation: The patient returned to normal activity and showed no pain on exam.
In Shetler 2022 et al., on radial head OCD, what surgical technique was used after fragment removal?
A. Bone grafting and plate stabilization
B. Abrasive curettage of the humeral condyle
C. Arthrodesis of the elbow joint
D. Abrasion arthroplasty until bleeding bone exposed
E. Radio-ulnar ostectomy
Answer: Abrasion arthroplasty until bleeding bone exposed
Explanation: This technique promotes fibrocartilage healing and is standard after OCD flap removal.
In Shetler 2022 et al., on radial head OCD, what feature characterized the OCD lesions arthroscopically?
A. Erosion of the ulnar notch
B. Central necrosis of the humeral condyle
C. Discoid elevation of cartilage with a cleft
D. Complete separation of the radial head
E. Loose bodies in the olecranon fossa
Answer: Discoid elevation of cartilage with a cleft
Explanation: This classic appearance described a partially detached OCD flap.
In Shetler 2022 et al., on radial head OCD, what confirmed the diagnosis of osteochondritis dissecans in this case?
A. Histopathology showing retained, degenerative cartilage
B. CT showing medial coronoid fragmentation
C. X-ray evidence of joint effusion
D. Clinical history of trauma
E. Persistent elbow swelling
Answer: Histopathology showing retained, degenerative cartilage
Explanation: Retention of cartilage cores and degeneration confirmed the OCD diagnosis.