**Question:** Meyer's procedure is a method for treatment of

A. gonarthritis
B. gout
C. gouty arthritis
D. urate crystal deposition disease

**Core Concept:** Meyer's procedure is a surgical technique used to address gouty arthritis or deposition of urate crystals in the joints. Urate crystal deposition disease, also known as hyperuricemia, is characterized by the excessive deposition of urate crystals in various tissues and organs, commonly affecting the joints in patients with gout.

**Why the Correct Answer is Right:** Meyer's procedure is a correct treatment for gouty arthritis and related urate crystal deposition diseases, as it aims to relieve joint pain and disability caused by the deposition of urate crystals. In this procedure, the joint is opened and the accumulated crystals are removed, followed by synovial fluid aspiration and injection of corticosteroids to reduce inflammation.

**Why Each Wrong Option is Incorrect:**

A. Gonarthritis (arthritis of the knee joint) is a different condition, not related to urate crystal deposition, and thus Meyer's procedure is not applicable for its treatment.

B. Gout is a systemic condition involving deposition of urate crystals in various tissues, but the question specifically asks for the treatment of urate crystal deposition in joints. Gout is a broader term and does not exclusively target joint urate crystal deposition.

C. Gouty arthritis is a specific subtype of gout involving joint involvement. Similar to option B, gouty arthritis is more focused on urate crystal deposition in joints, but the question specifically asks for the treatment of joint urate crystal deposition.

D. Urate crystal deposition disease is the broader term for the condition mentioned in the question. While Meyer's procedure can be used in urate crystal deposition disease, the correct answer should be D, as it encompasses the treatment of joint urate crystal deposition, which is the main focus of the question.

**Clinical Pearl:**

Meyer's procedure is a valuable surgical intervention for patients with gouty arthritis or urate crystal deposition disease affecting joints. This procedure helps alleviate pain and disability caused by joint inflammation and crystal accumulation.

**Correct Answer:** D. Urate crystal deposition disease (Discussed above)