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Open vs. Ultrasound-Guided Carpal Tunnel Release

Prospective Multicenter Trial Comparing Open Surgical Decompression Versus Minimally Invasive Ultrasound-Guided Carpal Tunnel Release

Status
Recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT07814547
Enrollment
200
Registered
2026-09-11
Start date
2026-06-01
Completion date
2028-07-01
Last updated
2026-09-11

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Carpal Tunnel Syndrome (CTS)

Keywords

carpal tunnel syndrome, open surgical carpal tunnel release, ultrasound guided carpal tunnel release, osctr, usgctr, Boston carpal tunnel questionnaire, bctq, Return to Work

Brief summary

Carpal Tunnel Syndrome (CTS) is the most prevalent entrapment neuropathy. Open Surgical Carpal Tunnel Release (OSCTR) remains the gold standard, while minimally invasive Ultrasound-Guided Carpal Tunnel Release (USGCTR) offers potential advantages including reduced postoperative morbidity and faster recovery. This prospective, multicenter observational cohort study compares the clinical outcomes, patient-reported outcomes, and socioeconomic impact of USGCTR versus OSCTR. A total of 200 patients, with 100 patients per cohort, will be included. Patient assignment is based on the participating center's standard of care. Follow-up assessments are performed preoperatively and at 2 weeks, 6 weeks, 3 months, and 12 months after surgery.

Detailed description

Carpal Tunnel Syndrome (CTS) is the most common compression neuropathy of the median nerve. Open Surgical Carpal Tunnel Release (OSCTR) has been established as the clinical gold standard. However, the procedure is associated with a palmar incision and may result in scar pain, including pillar pain, and delayed return to manual activities. Ultrasound-Guided Carpal Tunnel Release (USGCTR) is a minimally invasive technique that permits division of the flexor retinaculum under continuous sonographic visualization through a minimal incision at the distal forearm or wrist crease. Potential advantages include avoidance of a painful scar in the load-bearing area of the hand and potentially faster recovery. The study aims to compare functional recovery and symptom relief following OSCTR versus USGCTR. Secondary objectives include comparison of postoperative pain, subjective outcome, return to work, patient satisfaction, and complication rates. This is a prospective, multicenter observational cohort study. Patients are not randomized. Assignment to the two cohorts is determined by the participating treatment center and its respective standard procedure. Patients choose the treatment center based on referral by their previously treating neurologist or on personal information. The study team does not influence this decision. Both procedures are established standard procedures routinely performed at the respective institutions.

Interventions

PROCEDUREOpen Surgical Carpal Tunnel Release (OSCTR)

Open surgical decompression of the carpal tunnel (OSCTR) is performed at UKH Salzburg as the established standard surgical treatment for carpal tunnel syndrome. The procedure involves open surgical release of the flexor retinaculum. Intraoperative findings and immediate complications are documented.

PROCEDUREUltrasound-Guided Carpal Tunnel Release (USGCTR)

Ultrasound-guided carpal tunnel release (USGCTR) is performed at the University Institute of Radiology of the Paracelsus Medical Private University. The minimally invasive procedure involves release of the flexor retinaculum under continuous sonographic visualization through a minimal incision at the distal forearm or wrist crease. Intraoperative findings and immediate complications are documented.

Sponsors

AUVA General Trauma Hospital Salzburg
Lead SponsorOTHER
Salzburger Landeskliniken
CollaboratorOTHER
Paracelsus Medical University
CollaboratorOTHER

Study design

Observational model
COHORT
Time perspective
PROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
Yes

Inclusion criteria

* Electrophysiologically verified Carpal Tunnel Syndrome by EMG/nerve conduction studies, with the examination not older than 6 months at the time of inclusion. * Previous documented and exhausted conservative treatment * Existing indication for surgery that has been discussed with the patient and the patient's explicit wish to undergo surgical treatment. * Ability to provide informed consent and written informed consent * Age ≥18 years.

Exclusion criteria

* Previous surgery at the affected location or revision procedures. * Pre-existing nerve lesions of the upper extremity, including traumatic transections or proximal injuries. * Manifest polyneuropathy. * Foreseeable loss to follow-up, for example inability to contact the participant or insufficient compliance, before the critical 3-month follow-up. * Age under 18 years.

Design outcomes

Primary

MeasureTime frameDescription
Change in Boston Carpal Tunnel Questionnaire (BCTQ) ScoreBaseline to 3 months postoperativelyMean difference in the change in the Boston Carpal Tunnel Questionnaire (BCTQ) score, combining the Symptom Severity Scale and Functional Status Scale, from the preoperative assessment (T0) to the 3-month postoperative assessment (T3).

Secondary

MeasureTime frameDescription
Pain Intensity - Visual Analog Scale (VAS), 0-10Preoperatively and at 2 weeks, 6 weeks, 3 months, and 12 months postoperativelyChange in pain intensity measured using the Visual Analog Scale (VAS), ranging from 0 to 10.
Subjective Hand Function - Single Assessment Numeric Evaluation (SANE), 0-100%Preoperatively and at 2 weeks, 6 weeks, 3 months, and 12 months postoperativelySubjective hand function measured using the Single Assessment Numeric Evaluation (SANE), ranging from 0 to 100%.
Time to Full Return to Work - Number of Days After SurgeryUp to 3 months postoperativelyNumber of days from surgery until full return to work.
Postoperative Complications - Frequency of Wound Infection, Persistent Numbness, and Revision SurgeryWithin 12 months after surgeryFrequency of wound infections, persistent numbness, or required revision procedures.

Countries

Austria

Contacts

CONTACTAlexander M.T. Paszicsnyek, Dr.
alexander.paszicsnyek@auva.at+43 5939344211
CONTACTNikolaos Schörghofer, Dr.
n.schoerghofer@salk.at+435725554901
STUDY_CHAIRThomas Hausner, Prim. Priv. Doz. Dr.

AUVA General Trauma Hospital Salzburg

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Sep 12, 2026