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During the process of nerve microsurgical reconstruction, 30 minutes of electrical stimulation is applied to the distal end of the damaged nerve to assess its potential benefits for nerve regeneration, functional recovery, slowing down the degeneration at the neuromuscular junction, and preventing muscle atrophy.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| nerve electrical stimulation | Experimental | During the process of nerve microsurgical reconstruction, a 30-minute electric stimulation is applied to the distal end of the damaged nerve. |
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| nerve microsurgical reconstruction | Placebo Comparator | no nerve electrical stimulation |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Brief electrical stimulation | Other | During the nerve micro-reconstruction surgery, electrical stimulation is given to the distal end of the damaged nerve for 30 minutes. |
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| Measure | Description | Time Frame |
|---|---|---|
| NCV/EMG(CMAP,latency) | The electromyography (EMG) is a diagnostic method used to assess muscle and nerve function, primarily to detect muscle activity and nerve conduction velocity, in order to monitor the recovery of neuromuscular function after surgery. During the EMG examination, the examiner uses electrodes attached to the palm to measure and record the electrophysiological signals of the muscles for further analysis. Through this method, doctors can evaluate the electrophysiological activity of the muscles to assess the reinnervation of distal muscles by the damaged nerves. | The third month after surgery. |
| Measure | Description | Time Frame |
|---|---|---|
| DASH questionnaire | The DASH questionnaire (Disabilities of the Arm, Shoulder, and Hand) is a tool used to assess a patient's upper extremity function and symptoms. It helps in evaluating the impact of musculoskeletal disorders on daily activities and quality of life. | Preoperative (applicable to subjects with nerve compression), the first, third, and sixth months after surgery. |
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Inclusion Criteria:
Adults aged 18 and older
Acute peripheral nerve rupture between the elbow and wrist
Acute rupture of the median or ulnar nerve
Patients who have signed a valid written consent for surgery and trials
Patients with acute transection or compression of the median nerve or ulnar nerve resulting in impaired hand motor function.Patients with hand motor dysfunction secondary to nerve compression are defined as those who meet all of the following criteria:
Exclusion Criteria:
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| National Cheng Kung University Hospital | Tainan | Taiwan | 704302 | Taiwan |
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| no nerve electrical stimulation | Other | only nerve microsurgical reconstruction, no nerve electrical stimulation |
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| Muscle power | Muscle power refers to the ability of a muscle or group of muscles to exert force quickly. It is a combination of strength and speed, and is often measured in activities that require explosive movements, such as sprinting, jumping, or lifting weights. Muscle power is important for athletic performance and functional movement in daily activities. | Preoperative (applicable to subjects with nerve compression), the third and sixth months after surgery. |
| Purdue Pegboard test | The Purdue Pegboard test is a standardized assessment used to measure manual dexterity and fine motor skills. It involves placing pegs into holes on a board as quickly and accurately as possible, using one hand at a time and then both hands. The test is commonly used in occupational therapy, rehabilitation, and research to evaluate hand function and coordination. | Preoperative (applicable to subjects with nerve compression), the third and sixth months after surgery. |
| MMDT | Assessment of hand dexterity and posture tolerance | Preoperative (applicable to subjects with nerve compression), the third and sixth months after surgery |
| NCV/EMG(CMAP,latency) | Electromyography (EMG) is a diagnostic method used to assess muscle and nerve function, primarily for detecting muscle activity and nerve conduction velocity to monitor the recovery of neuromuscular function post-surgery. During an EMG examination, the examiner attaches electrodes to the palm to measure and record the electrophysiological signals of the muscles for further analysis. This allows physicians to evaluate the electrophysiological activity of the muscles and assess the reinnervation of distal muscles by the damaged nerves. | Preoperative (applicable to subjects with nerve compression) and the sixth month after surgery. |