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Related Experiment Video

Updated: Jun 18, 2026

Chronic Constriction of the Sciatic Nerve and Pain Hypersensitivity Testing in Rats

Chronic Constriction of the Sciatic Nerve and Pain Hypersensitivity Testing in Rats

Published on: March 13, 2012

Causalgia: a restatement.

¹Peripheral Nerve Injury Unit, Royal National Orthopaedic Hospital, Middlesex, England. Benita.patel@rnoh.nhs.uk

|November 21, 2009

Summary

Causalgia, often from missile injuries, can be treated by addressing nerve and arterial lesions. Surgical correction of these injuries effectively cured pain in most patients, challenging current pain syndrome classifications.

Area of Science:

Neurology
Vascular Surgery
Pain Management

Background:

Causalgia, a severe neuropathic pain syndrome, is often associated with nerve injury.
The etiology and optimal treatment for causalgia remain areas of active research.
Current classifications like complex regional pain syndrome (CRPS) Type 1 and Type 2 may not fully encompass all causalgia presentations.

Observation:

This study describes 48 cases of causalgia, with 33 attributed to missile injuries.
A significant subset of patients (22) had associated major arterial injuries.
Initial treatments included sympathetic block and sympathectomy in 14 patients.

Findings:

Sympathetic block followed by sympathectomy provided pain relief in 11 of the first 14 patients.

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Last Updated: Jun 18, 2026

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Chronic Post-Ischemia Pain Model for Complex Regional Pain Syndrome Type-I in Rats

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Demonstration of Cutaneous Allodynia in Association with Chronic Pelvic Pain

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Published on: June 23, 2009

Subsequent treatment focused on correcting nerve and adjacent axial artery lesions, leading to cures in 32 patients.

These findings suggest a strong link between vascular injury and causalgia, and the efficacy of targeted surgical repair.

Implications:

The results challenge the existing nosology of complex regional pain syndrome (CRPS) Types 1 and 2.
Accurate diagnosis and surgical intervention targeting both neural and vascular components are crucial for causalgia treatment.
Further research is warranted to refine diagnostic criteria and therapeutic strategies for neuropathic pain conditions.