View clinical trials related to Peripheral Nerve Injuries.
Filter by:This study evaluates peripheral nervous system function using Multiple Excitability Measures (MEM) to obtain "electrophysiological pain phenotypes"
Cortical activity during rest and with stimulation by functional magnetic resonance imaging will be investigated in patients with OBPI.
Early ambulation after knee replacement surgery is made possible in large part by providing safe and effective pain control. Peripheral nerve blocks are increasingly used for postoperative analgesia since they can provide excellent pain relief and minimize the need for opioid analgesics. Ultrasound guided adductor canal block (ACB) was first reported in 2009 by anesthesiologists at the University of Utah. This block is unique in that it spares motor function in the lower extremity. Since 2009, a number of publications have described the successful use of ACB for pain management after total knee arthroplasty (TKA), anterior cruciate ligament (ACL) reconstruction, and other procedures of the knee. As a component of multi-modal analgesia, ACB can provide effective postoperative pain control and facilitate early hospital discharge. Although it is widely utilized, the ACB block can be technically difficult to perform since it requires injection in immediate proximity to the femoral artery and vein. In patients with a large thigh circumference, ultrasound can be challenging since the femoral vessels are deeper and more difficult to visualize. This presents the possibility of vessel trauma and/or intravascular injection of local anesthetic. The investigators have implemented a new technique for performing the ACB. This block is performed using a 20G fenestrated needle. The needle is FDA approved for peripheral nerve block. It has an occluded tip with 8 side ports on alternating sides of the distal 2cm. Injection through the fenestrated needle produces effective distribution of local anesthetic to nerves of the adductor canal without immediate proximity to the femoral artery and vein. The ultrasound landmarks used to perform ACB with the fenestrated needle are readily visible even in patients with very large thigh circumference. In summary, early experience with the US guided ACB block performed with a fenestrated block needle suggests that it is technically easier and potentially safer to perform than blocks performed with a conventional needle. This study should be performed prospectively in order to ensure accurate data comparing the two needles. A retrospective review of blocks performed using a conventional needle would not provide accurate data with respect to the number of attempts, time required to perform the blocks or the resulting sensory changes after performing the nerve block.
This study evaluated the effects of an integrated program of touch-observation and task-based mirror therapy on sensorimotor function in nerve injury patients. Before the return of protective sense (Value of Semmes-Weinstein monofilament test > 4.31), half of the participants received 15 minutes of mirror therapy program, followed by 20 minutes of regular hand therapy and 20 minutes of physiotherapy.While the other half received 15 minutes protective sensory reeducation programs, 20 minutes of regular hand therapy and 20 minutes of physiotherapy in each treatment session. Once the patients had regained the protective sense (Value of Semmes-Weinstein monofilament test < 4.31), the discriminative sensory reeducation program was started for the participants in both groups. The hypothesis was that using the mirror therapy for sensorimotor reeducation in the early phase after nerve repair would yield better results with regard to the returning of sensation, sensorimotor control ability and hand function than using a classical reeducation program alone.
This is a multi-center prospective observational study that will capture detailed information about the treatment and long term outcomes of 250 patients with PNI resulting from upper extremity trauma. The study will focus on a young adult population to include individuals ages 18-65. Patients with PNI will be recruited during the hospitalization for initial treatment of the upper extremity injury. Additional patients may be identified during clinic visits for on-going treatment of upper extremity injuries as nerve injuries evolve or upon referral from outside physicians. However, all eligible nerve injuries must be treated within 6 months of the initial upper extremity trauma. Outcomes will be assessed at 3, 6, 12, 18 and 24 months following diagnosis of the nerve injury. All assessments will take place in the clinic and will include a patient interview and a brief exam to evaluate sensory and motor function.
Cross-sectional and longitudinal analysis of the somatosensory phenotype, assessed by quantitative sensory testing (QST) and Information obtained by questionnaires to detect risk factors for neuropathic pain development and chronification in painless and chronic pain patients.
The primary purpose of this research study is to determine the safety of injecting ones own Schwann cells to augment sural nerve autografts after a severe, non-lacerating injury to the sciatic nerve has occurred.
The purpose of this clinical investigation is to confirm the medium- and long-term safety and performance of the chitosan-based nerve guide (Reaxon® Nerve Guide) in comparison to an autologous nerve graft to bridge nerve defects in the finger.
Although a condition for surgery, robotic interventions applied with steep Trendelenburg-lithotomy (ST-L) position may cause positional injury and peripheral neuropathy if good position is not achieved on the operating table. This study will be a 7-year retrospective examination of postoperative positional injury (PPI) in patients undergoing robot-assisted radical prostatectomy (RARP) for prostate diagnosis.
The primary goal of this study is to quantify the functional deficits caused by injuries to the brachial plexus and peripheral nerve in the arm. The second goal is to test the possible benefit of electrical stimulation of the injured nerve following surgery. The investigators will test whether electrical stimulation will improve hand function and nerve regeneration after repair for nerve injury. Injuries causing nerve damage in the arm and hand are common. In severe cases, functional outcomes even with surgery remain poor. Recently, electrical stimulation has been applied to injured nerves in rats. This was shown to improve nerve regeneration. These studies showed that as little as one hour of electrical stimulation was effective. Therefore, the investigators plan to test this new method of treatment to determine whether it is also helpful in humans. These will be done by using a symptom severity questionnaire, nerve conduction studies and by testing pressure sensations, hand dexterity and strength. The patients will be randomized to either the treatment or control group. Following the treatment, all baseline measurements will be reevaluated every three months for the first year and every 6 months during the second year. The timing and nature of the evaluation process will be identical in both groups.