Paper 05 · White paper · Carpal tunnel syndrome
Abstract
This updated white paper argues that carpal tunnel syndrome may be driven not only by mechanical compression of the median nerve, but also by lymphatic stagnation at the distal radial and ulnar collecting junction of the wrist. Within this model, elevated compartmental pressure, intraneural edema, nocturnal worsening, and part of the benefit seen after carpal tunnel release can all be interpreted through impaired lymphatic egress and its downstream neurovascular consequences.
Key findings
The paper reframes CTS as a dual-mechanism disorder in which lymphatic drainage failure may sit upstream of elevated intracanal pressure and intraneural edema, rather than merely resulting from them.
Recent randomized trials and a 2025 meta-analysis are used to argue that targeted lymphatic drainage can reduce median nerve cross-sectional area, improve nerve conduction, and relieve symptoms without surgery in selected patients.
The dossier proposes a testable distal-wrist lymphatic cascade and positions targeted drainage as a mechanistically grounded non-surgical or postoperative adjunct pathway for CTS management.
Downloads
Access the corrected final PDF for citation, review, and distribution.
Lymphatic pathways figure
Systems illustration used here to support the paper's argument that regional lymphatic outflow architecture is central to understanding fluid accumulation and pressure behavior in distal limb compartments.
Translational device figure
Consumer-device geometry included as a translational reference for directional mechanical contact and future device-based drainage protocols targeting the distal wrist.
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