Subarachnoid-Subarachnoid (S-S) Bypass Versus Adhesion Lysis in Spinal Arachnoiditis and Syringomyelia

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

RECRUITING

Clinical Phase

NA

Total Enrollment

200 participants

Study Classification

INTERVENTIONAL

Study Start Date

2024-04-30

Study Completion Date

2027-04-30

Brief Summary

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To determine whether Subarachnoid-Subarachnoid (S-S) Bypass results in better patient outcomes with fewer complications and improved quality of life compared to intradural adhesion lysis in individuals with Spinal Arachnoiditis and Syringomyelia.

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Detailed Description

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Participants with Spinal Arachnoiditis and Syringomyelia will be randomized to either have a Subarachnoid-Subarachnoid (S-S) Bypass or intradural adhesion Lysis. The participant will then return to the neurosurgeon's office at the following time points which are consistent with standard of care practice: 3-6 months, 12 and 24 months. At these visits, the clinician will complete a physical exam and the participant will report on the prognosis of symptoms and complete questionnaires. A spine MRI will be performed 3-6 months, 12 and 24 months after the decompression.

Conditions

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Syringomyelia

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Primary Study Purpose

TREATMENT

Blinding Strategy

NONE

Study Groups

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Subarachnoid-Subarachnoid (S-S) Bypass

After dissections of the normal arachnoid mater at the cephalic and caudal sites, 1 or 2 tubes made of medical grade silicone (ventricular drainage tube; internal diameter 1.5-2.0 mm, external diameter 2.5-3.3 mm) were inserted into the cephalic and caudal ends of the normal subarachnoid space. The part of the tube inserted into the subarachnoid space was approximately 2 cm long. The total length of the tube was equal to the distance between the cephalic and caudal ends of the normal dissected arachnoid mater, along with approximately 4 cm of extra tubing.

Group Type EXPERIMENTAL

Subarachnoid-Subarachnoid (S-S) Bypass

Intervention Type PROCEDURE

The dura was widely exposed beyond the level of trauma, and then a midline dural opening was made under an operative microscope. When dura and arachnoid were adhered because of an expansion of arachnoiditis, they had to be released with great care to place the bypass tubes. During this procedure, S-S bypass was not usually needed to performed arachnoid lysis. This exposure had to reach the normal arachnoid mater free from arachnoiditis and adhesion, with normal CSF circulation.

After dissections of the normal arachnoid mater at the cephalic and caudal sites, 1 or 2 tubes made of medical grade silicone (ventricular drainage tube; internal diameter 1.5-2.0 mm, external diameter 2.5-3.3 mm) were inserted into the cephalic and caudal ends of the normal subarachnoid space. The part of the tube inserted into the subarachnoid space was approximately 2 cm long.

Intradural Adhesion Lysis

The dura is opened sharply, exposing the spinal cord. After microsurgical dissection adhesion, the dura is sewn closed with a dural graft.

Group Type ACTIVE_COMPARATOR

Intradural Adhesion Lysis

Intervention Type PROCEDURE

Intradural spinal cord Adhesion Lysis

Interventions

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Subarachnoid-Subarachnoid (S-S) Bypass

The dura was widely exposed beyond the level of trauma, and then a midline dural opening was made under an operative microscope. When dura and arachnoid were adhered because of an expansion of arachnoiditis, they had to be released with great care to place the bypass tubes. During this procedure, S-S bypass was not usually needed to performed arachnoid lysis. This exposure had to reach the normal arachnoid mater free from arachnoiditis and adhesion, with normal CSF circulation.

After dissections of the normal arachnoid mater at the cephalic and caudal sites, 1 or 2 tubes made of medical grade silicone (ventricular drainage tube; internal diameter 1.5-2.0 mm, external diameter 2.5-3.3 mm) were inserted into the cephalic and caudal ends of the normal subarachnoid space. The part of the tube inserted into the subarachnoid space was approximately 2 cm long.

Intervention Type PROCEDURE

Intradural Adhesion Lysis

Intradural spinal cord Adhesion Lysis

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

* 1\) history of traumatic spinal cord injury or other infection; 2) evidence of progressive neurological deficit, and/or pain syndrome; 3) MRI showing a syringomyelia due to spinal trauma or other infection; and 4) minimum follow-up period of more than 1 year.