Toughness and Flexibility Exercises: Standard exercises that strengthen hand and wrist muscles and increase flexibility can strengthen joint steadiness and decrease the chance of injuries. Splinting is the first-line treatment for your mallet finger. The target is to maintain the fingertip straight while in the splint until eventually the tendon heals.​ 断裂的肌腱需要通过手术重新连接... https://www.theorthopaedicandpainpractice.com/why-cant-i-straighten-the-tip-of-my-finger/