“…4 Fenech describes the anatomy of the metacarpophalangeal joints and the use of real-time ultrasound to diagnose the injuries in Boxer's knuckle. 5 Fenech demonstrates both the normal anatomy and the tears of the sagittal bands of the dorsal hood and associated extensor tendon instability. This is an important article for teaching the clinical use of ultrasound to allow patients to be able identified so that they may move forward to improve from what can result in long-term disability from the loss of hand function.…”