After a brawl, a young male presented with inability to extend his distal interphalangeal joint. An X-ray was taken and was shown to be normal. What should he the next step in managing the patient?

Orthopaedics

After a brawl, a young male presented with inability to extend his distal interphalangeal joint. An X-ray was taken and was shown to be normal. What should he the next step in managing the patient?

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 -