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What is the radial nerve?
Theradial nerve沿着手臂的底部跑下来，控制运动triceps肌肉,这是位于上层的后面arm. The radial nerve is responsible for extending the wrist and fingers. It also controls sensation in part of the hand.
对桡神经的伤害可能导致桡骨神经病变，也称为桡骨神经麻痹。桡神经损伤可能是由于物理创伤，感染甚至暴露于毒素。它经常是原因numbness和刺痛或灼痛。它也可能是无痛的。这种情况可能导致手腕，手或手指移动的弱点或困难。
在许多情况下，如果治疗潜在的原因，这种情况会改善。
Injury to the radial nerve has a variety of possible causes. These include:
- 压裂你的humerus, a bone in the upper arm
- sleeping with your upper arm in an awkward position
- pressure from leaning your arm over the back of a chair
- using crutches improperly
- falling on or receiving a blow to your arm
- 手腕的长期收缩
桡神经损伤的最常见原因是打破你的手臂, overusing your arm, and运动的和工作事故。根据伤害水平，您可能会遇到径向神经的完整撕裂。当神经被切断时发生这种情况。它会导致症状类似于更轻微的伤害。神经撕裂通常需要手术修复。
某些行动，当经常重复时，可以导致径向神经损伤。涉及抓握和摆动运动的运动，例如摆动锤子，可以随着时间的推移导致神经损伤。由于径向神经在手腕和前臂的骨骼上来回移动，因此神经可能被困，捏, or strained from these activities.
铅中毒也可以导致长期神经损伤。随着时间的推移，引导毒素可能会对整体造成神经系统的损害。
某些影响整个身体的健康状况可能会损害一个神经。Kidney disease和糖尿病可能会导致炎,fluid retention, and other symptoms that can, in turn, lead to nerve compression. This could affect the radial nerve or other nerves in your body.
A radial nerve injury usually causes symptoms in the back of your hand, near your thumb, and in your index and middle fingers.
Symptoms may include a sharp or burning pain, as well as unusual sensations in your thumb and fingers. It’s common to experience numbness, tingling, and trouble straightening your arm. You may also find that你不能伸展或拉直你的手腕和手指。This is called “wrist drop” or “finger drop,” and it doesn’t occur in all cases.
If you think you’ve injured your radial nerve, your doctor will start by asking you about your symptoms and when they began. This may help pinpoint what caused the injury.
Your doctor will also do a physical exam. They will look at your affected arm, hand, and wrist, and compare it to your healthy arm, hand, and wrist. They may ask you to extend and rotate your arm to see if the injury affects your range of motion. Your doctor will also ask you to extend your wrist and fingers, checking for any weakness or loss of muscle tone.
Your doctor may order tests to rule out other causes of your symptoms. For example, you may have血液测试to check yourblood sugar和维生素水平，以及你的肾和thyroid function。These tests check for signs of other conditions associated with nerve damage, such as diabetes,维生素缺陷, or diseases of the kidney and liver. ACT扫描要么MRI.也可以寻找可能导致径向神经压力的头部，颈部或肩部内的疾病。
你的医生也可能考虑肌科（EMG）和神经传导测试。EMG测量肌肉中的电活动。神经传导测试测量脉冲沿着你神经的速度。这些测试可以帮助确定您是否在神经或肌肉中遇到问题。它们还可以展示桡神经是否受损。
In very rare cases, your doctor may request anerve biopsy。这涉及占据神经的一个小样本并检查它以确定导致损坏的原因。
治疗桡神经损伤的目标是缓解症状，同时保持手腕和手的运动。最好的治疗取决于潜在的原因。在某些情况下，症状在没有干预的情况下慢慢消失。您的医生可以规定药物或其他疗法，以帮助管理您的症状。
一线治疗
有几种不同的初系治疗选项可用。这些包括：
- analgesic or抗炎药
- antiseizure medications要么tricyclic antidepressants(prescribed to treat pain)
- steroid injections
- 麻醉霜或斑块
- 牙套或splints
- 物理疗法帮助构建和保持肌肉力量
- 按摩
- 针刺
有些人选择经皮电子神经刺激（十分）治疗神经损伤。该治疗涉及将若干粘合电极放置在受影响区域附近的皮肤上。电极以不同的速度输送温和的电流。
物理疗法构建并保持肌肉力量可以帮助愈合和改善神经功能。按摩处理是另一种选择。按摩可以分解疤痕组织并使径向神经更敏感。
镇痛药或抗炎药物可以有助于缓解桡神经损伤的疼痛。它也可能有助于伤害愈合更快。受影响区域的单一的可皮质射击可以缓解疼痛。Anesthetic creams或贴片也可用于缓解疼痛，同时仍然允许运动。
It’s also common to use a brace or splint to immobilize the nerve. This might not sound like the most convenient option, but it may prevent you from reinjuring the nerve while it’s healing.
为牙套和夹板商店Less traditional treatment methods, such as acupuncture and chiropractic adjustments, are also an option. Keep in mind that evidence about whether some of these treatments work is mixed.
手术
如果神经未被撕裂或撕裂，大多数患有桡神经损伤的人将在开始治疗的三个月内恢复。但有些情况最终需要手术。如果您的径向神经被捕获，手术可以缓解神经压力。如果有质量，如abenign tumor, on your radial nerve, you may need surgery to remove it.
The goal of surgery is to repair any damage to the nerve. Occasionally, when it is thought that the nerve will not heal, tendon transfers can be performed to restore function to the extremity. After surgery, you will need to wear a brace or splint to allow the injury or tendon transfer to heal. Your doctor will refer you to a physical therapist for rehabilitation to restore range of motion and strength.
如果您避免将长时间压力放在上臂上，您可以防止最径向神经受伤。避免可能导致神经损伤的行为，例如在坐着或睡觉时堆放在狭窄位置中的重复动作或留在狭窄位置。如果您在需要重复动作的职业中工作，请采取措施来保护自己，通过休息并在需要不同运动的任务之间切换。
径向神经损伤的长期预后取决于损伤的原因和严重程度。在大多数情况下，可以完全恢复。一线治疗方法通常会在12周内治愈最径向神经损伤。
如果你的神经损伤是潜在的医疗状况，例如糖尿病或alcoholism，与您的医生交谈如何管理您的症状。
当受伤发生时更年轻的人和有额外的神经损伤的人