Evaluation of Dynavisc in Pain Reduction Following Revision Surgery for Persistent or Recurrent Carpal Tunnel Syndrome

Inclusion criteria * Signed and dated informed consent form; * Stated willingness to comply with all study procedures and availability for the duration of the study; * Aged 18-65 years of age; * In good general health; * Patients experiencing recurrence or persistence of pain in the ipsilateral hand after previous carpal tunnel release for surgical treatment of primary carpal tunnel syndrome; * All of the following physical examination tests must be performed; at least one must be positive: 1. Physical examination demonstrates positive Phalen test; 2. Physical examination demonstrates positive Tinel's test; 3. Physical examination demonstrates positive monofilament test; * ENMG demonstrates median nerve velocity and deviation consistent with the diagnosis of carpal tunnel syndrome. Exclusion criteria * Inability to understand the clinical trial and/or sign the Informed Consent; * Unable or unwilling to attend all of the study prescribed visits and data collection forms; * Active infection requiring medication; * Drug requiring diabetes mellitus; * Collagenopathies; * Hypothyroidism requiring medication; * Rheumatoid arthritis requiring medication; * Autoimmune disease requiring medication; * Cervical nerve compression; * Hematopoietic disorders; * Lacertus fibrosis; * Psychiatric disorder requiring medical treatment; * Subject of workers compensation claim; * History of cancer, except for basal or squamous cell skin cancer; * Known allergic reactions to components of DYNAVISC; * Actively participating in another clinical trial.