Arthritis involving DIP, PIP, 1st carpometacarpal with sparing of MCP and wrist joints is typical of –

Orthopaedics

Arthritis involving DIP, PIP, 1st carpometacarpal with sparing of MCP and wrist joints is typical of –

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 -