Endoscopic Carpal Tunnel Decompression
Endoscopic carpal tunnel decompression is a minimally invasive technique for carpal tunnel release that uses a small high-definition camera (endoscope) introduced through a single small incision at the wrist.
Overview
What is Endoscopic Carpal Tunnel Decompression?
Endoscopic carpal tunnel decompression is a minimally invasive technique for carpal tunnel release that uses a small high-definition camera (endoscope) introduced through a single small incision at the wrist — typically less than 1 centimetre — to visualise and divide the transverse carpal ligament from within the carpal tunnel. No palm incision is required.
The procedure achieves the same surgical result as open carpal tunnel release — complete division of the transverse carpal ligament and decompression of the median nerve — through a smaller wound. Evidence consistently demonstrates equivalent relief of carpal tunnel symptoms, with potential advantages in earlier return to grip strength and reduced scar-related discomfort at the palm (pillar pain).
One Brain and Spine's neurosurgeons perform endoscopic carpal tunnel decompression as the preferred technique for straightforward carpal tunnel syndrome. Open surgery is available for revision cases, complex anatomy, or patient preference.
Who is a Candidate for Endoscopic Carpal Tunnel Release?
- Confirmed carpal tunnel syndrome on nerve conduction studies
- Failed conservative treatment — splinting, cortisone injection
- Moderate to severe nerve compression — particularly with thenar weakness or muscle wasting
- Suitable anatomy — standard single-level median nerve compression at the wrist
- Not suitable for revision carpal tunnel release (scarred anatomy) or very complex cases. A traditional open technique is preferred in these situations.
Procedure
What Happens During Endoscopic Carpal Tunnel Release?
The procedure is performed under local or general anaesthesia as a day case. A tourniquet is applied to the forearm to provide a bloodless field. A single small incision (approximately 8 to 10mm) is made at the wrist crease, just proximal to the carpal tunnel.
Using a dedicated endoscopic carpal tunnel system, a slotted cannula is carefully introduced beneath the transverse carpal ligament in the carpal tunnel, confirmed by visualisation through the endoscope. Once correctly positioned, the endoscope and cutting blade are introduced through the cannula. The transverse carpal ligament is visualised from below and completely divided with the retractable blade under direct endoscopic vision — confirming complete release from the proximal to distal extent.
The cannula and endoscope are withdrawn, the tourniquet released, haemostasis confirmed, and the wrist wound closed with 1 to 2 sutures. A light dressing is applied. Duration of surgery is 15 to 20 minutes.
Outcomes & risks
Outcomes of Endoscopic Carpal Tunnel Release
Equivalent to open surgery — more than 90% of patients achieve good-to-excellent symptom relief. High-quality randomised trial data confirms equivalent nerve decompression outcomes, with endoscopic technique associated with earlier return to grip strength and less scar-related discomfort.
Risks and Complications
- Incomplete release — rare with experienced surgeons; may require conversion to open or revision surgery
- Nerve injury — median nerve or its palmar cutaneous branch; rare
- Vessel injury — palmar arterial arch; rare
- Wound complications — infection or wound healing issues; uncommon
- Recurrence — rare after complete release
- Chronic regional pain syndrome 0.3%
Frequently Asked Questions — Endoscopic Carpal Tunnel Release Melbourne
Is endoscopic carpal tunnel release safer than open surgery?
Both are safe procedures with low complication rates. Endoscopic release requires the ligament to be divided without full direct visualisation of the nerve — relying on endoscopic imaging. In experienced hands, the safety profile is equivalent to open surgery. The main risk specific to endoscopic technique is incomplete release, which occurs rarely and can be addressed by conversion to open surgery.
How long does endoscopic carpal tunnel release take?
Typically, 15 to 20 minutes. Including preparation and recovery time, most patients are in hospital for 2 to 3 hours.
When can I return to work after endoscopic carpal tunnel release?
Office and sedentary workers typically return at 1 to 2 weeks. Manual and grip-intensive workers can often return at 3 to 4 weeks — earlier than after open surgery, where the palm scar may limit grip use for 4 to 6 weeks.
Why Choose One Brain and Spine?
One Brain and Spine is a specialist neurosurgical group practice in Melbourne with expertise in peripheral nerve surgery. Our fellowship-trained neurosurgeons offer both endoscopic and open nerve decompression techniques, with a patient-centred approach and clear explanation of all options.
- Specialist neurosurgeons
- Endoscopic and open techniques — appropriate technique for each patient and nerve
- Patient-centred approach — clear diagnosis and treatment options
- All major health funds accepted