Varus stress test primarily stresses which structures of the elbow?

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Study for the NATA BOC Domain 2 Clinical Evaluation and Diagnosis Test. Utilize our comprehensive flashcards and multiple-choice quiz features; each question comes with hints and thorough explanations. Prepare effectively for your certification exam!

Multiple Choice

Varus stress test primarily stresses which structures of the elbow?

Explanation:
Varus stress on the elbow tests stability against inward bending of the forearm, so the key structures stressed are on the lateral side. The main restraints to this force are the lateral collateral ligament (LCL) complex, which includes the radial collateral ligament (RCL) and the lateral ulnar collateral ligament. The annular ligament helps keep the radial head in place but isn’t the primary limiter of varus stress, and the medial collateral ligament resists valgus stress, not varus. Therefore, the structures most stressed by the varus test are the lateral collateral ligament complex, including the radial collateral ligament.

Varus stress on the elbow tests stability against inward bending of the forearm, so the key structures stressed are on the lateral side. The main restraints to this force are the lateral collateral ligament (LCL) complex, which includes the radial collateral ligament (RCL) and the lateral ulnar collateral ligament. The annular ligament helps keep the radial head in place but isn’t the primary limiter of varus stress, and the medial collateral ligament resists valgus stress, not varus. Therefore, the structures most stressed by the varus test are the lateral collateral ligament complex, including the radial collateral ligament.

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