Be wary of avulsion fracture of base of phalanx
Lateral or medial fracture fragment = collateral ligament avulsion
Dorsal fracture fragment = extensor tendon avulsion
Palmar fracture fragment = volar plate avulsion
Lateral or medial fracture fragment = collateral ligament avulsion
Dorsal fracture fragment = extensor tendon avulsion
Palmar fracture fragment = volar plate avulsion
Finger 
Non-thumb metacarpal fractures
Polar thigh
Head
Middle phalanx 
Neck
Distal phalanx 
Shaft