The inability to hold a fist tightly after a wrist fracture may be related to post-fracture swelling, tendon damage, nerve damage and so on.
1. Swelling: wrist fracture can cause swelling in the wrist joint, palm and other parts of the hand. If the fracture is serious, the degree of swelling is also heavier, which will cause finger flexion activity obstacles, such as making a fist to hold tight, mainly due to local tissue swelling affecting the metacarpophalangeal joint activity is limited. With the dissipation of edema, the symptoms will disappear.
2. Tendon injury: if wrist fracture involves deep flexor tendon or deep flexor tendon, it can cause impaired flexion of metacarpophalangeal joint, such as not being able to make a tight fist; if the fracture is combined with rupture of tendon, it can cause impaired fist making or no flexion activity. Generally, superficial ultrasound can diagnose tendon injury.
3. Nerve injury: when wrist fracture causes nerve injury, such as median nerve, ulnar nerve and other injuries, it can cause finger flexion activity, sensory impairment due to different injuries. Therefore, the inability to hold the fist tightly after wrist fracture may be caused by nerve damage.
If it is difficult to relieve, it is recommended to consult a doctor in time and follow the doctor’s instructions.