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An anatomic basis for recurrence after Morton's neuroma excision
J A Amis1, S W Siverhus, B H Liwnicz
1Department of Orthopaedic Surgery, University of Cincinnati College of Medicine, Ohio.
Foot & Ankle
|March 1, 1992
Summary
Researchers found small nerve branches along the common digital nerve in cadaver feet. These branches may explain why Morton
Area of Science:
- Anatomy
- Podiatry
- Neurosurgery
Background:
- Morton's neuroma is a common condition affecting the forefoot.
- Recurrence after surgical treatment for Morton's neuroma is a significant clinical challenge.
Purpose of the Study:
- To investigate the anatomical basis for recurrent Morton's neuroma.
- To identify previously undescribed nerve structures associated with the common digital nerve.
Main Methods:
- Cadaveric dissection of the second and third interdigital spaces in five feet.
- Histological examination of identified nerve structures.
Main Results:
- Consistently observed plantarly directed nerve branches along the common digital nerve.
- Highest concentration of these branches distally, near the nerve bifurcation.
- Histological confirmation of these structures as nerve branches.
Conclusions:
- Undescribed plantarly directed nerve branches may contribute to Morton's neuroma recurrence.
- These branches could lead to traumatic neuroma formation or incomplete nerve retraction post-surgery.