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Clinical Trial Summary

Contracture which is defined as a limitation of the maximum passive range of motion due to changes in periarticular soft tissue can contributes to severe pain and increased disabilities. Once contracture is present, management options are very limited and mainly includes surgery. This clinic offers cryoneurolysis routinely to spastic patients to manage their severe spasticity, contracture and associated pain. In this observational project, the outcomes after cryoneurolysis in patients with wrist and hand contracture will be studied systematically and with more details to determine any changes in pain and range of motion after this procedure.


Clinical Trial Description

Contracture is defined as a limitation of the maximum passive range of motion of a joint due to shortening and changes of periarticular soft tissue structures. Contracture contributes to severe pain, increased disabilities, decreased functional range of motion and decreased functional range of motion in daily living. The incidence of contracture in first year after has been recorded to be as high as 66%and up to 28% within 3 months after stroke. There are many pharmacological and non pharmacological guidelines available for treatment of contracture and associated pain, including botulinum toxin injection, physiotherapy, stretching and positioning, though; the surgery has been recommended as the most effective one . Cryoneurolysis is a novel procedure that causes nerve degeneration by cooling them to -88°. The first step in this procedure is isolating the targeted nerves with ultrasound guidance and e-stimulation for motor nerves and mixed sensory motor nerves for pain management. To select the proper candidate for this procedure, targeted nerves will be temporary paralyzed by blocking them with lidocaine (DNB). In this clinic after successful DNB to reduce pain and muscle tone, the patient is offered cryoneurolysis. After rapid cooling the nerve to a certain degree the axon and myelin of targeted zone will be disrupted however ; the basal lamina, epineurium and perineurium of the targeted nerves will be remained intact and serve as a tube for neural regeneration. This observational study, proposes to measure the effect of cryoneurolysis prospectively and systematically on pain reduction in patients with wrist and hand severe spasticity or contracture due to any underlying disease. ;


Study Design


Related Conditions & MeSH terms


NCT number NCT06051656
Study type Observational
Source Vancouver Island Health Authority
Contact Mahdis Hashemi, MD
Phone 250-727-4233
Email mahdis.hashemi@islandhealth.ca
Status Recruiting
Phase
Start date January 9, 2023
Completion date September 2024

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