In a case of undifferentiated arthritis, presence of anti-cyclic citrullinated peptide (anti CCP) indicates strong possibility of which of the following?

Orthopaedics

In a case of undifferentiated arthritis, presence of anti-cyclic citrullinated peptide (anti CCP) indicates strong possibility of which of the following?

What is the use of the given instrument:

Which fracture results in the given deformity?

Positive pivot shift test in knee is because of injury to -