A 40-year-old female previous case history of fever, weight loss polyahralgia. Morning stiffness and bilateral hand pain the radiological finding is given below, what may be your diagnosis?

Orthopaedics

A 40-year-old female previous case history of fever, weight loss polyahralgia. Morning stiffness and bilateral hand pain the radiological finding is given below, what may be your diagnosis?

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 -