The Journal of Bone and Joint Surgery (American) 83:1321-1328 (2001)
© 2001 The Journal of Bone and Joint Surgery, Inc.
Operative Treatment of Interdigital Neuroma
A Long-Term Follow-up Study
Michael J. Coughlin, MD and
Troy Pinsonneault, MD
Investigation performed at St. Alphonsus Regional Medical Center,
Boise, Idaho
Michael J. Coughlin, MD
901 North Curtis Road, Suite 503, Boise, ID 83706. E-mail address:
footmd{at}aol.com
Troy Pinsonneault, MD
Edmonton, AB, Canada
The authors did not receive grants or outside funding in support
of their research or preparation of this manuscript. They did not
receive payments or other benefits or a commitment or agreement
to provide such benefits from a commercial entity. No commercial
entity paid or directed, or agreed to pay or direct, any benefits
to any research fund, foundation, educational institution, or other
charitable or nonprofit organization with which the authors are
affiliated or associated.
Background: The literature regarding the outcome
of surgical treatment of interdigital neuroma is incomplete. The
purpose of this study was to assess the demographics associated
with the presentation of an interdigital neuroma as well as the
long-term clinical results of operative resection by a
single surgeon.
Methods: A retrospective review of the patient records
of one orthopaedic foot and ankle surgeon identified eighty-two
patients who had been treated operatively for a primary, persistently painful
interdigital neuroma more than three years previously. Of these
eighty-two patients, sixty-six (seventy-one feet, seventy-four
neuromas) returned at an average of 5.8 years for a follow-up
evaluation, which included a review of the interval history since
the surgery, a physical examination, a radiographic evaluation,
and an assessment of the patients satisfaction with the
result of the surgery.
Results: Overall satisfaction was rated as excellent
or good by fifty-six (85%) of the sixty-six patients. Forty-six
(65%) of the seventy-one feet were pain-free at
the time of final follow-up. The patients who had had either bilateral
neuroma excision or excisions of adjacent neuromas in the same foot
in a staged fashion had a slightly lower level of satisfaction,
but this difference was not significant. While major activity restrictions following
surgery were uncommon, mild or major shoe-wear restrictions were
noted by forty-six of the sixty-six patients. Although there was
subjective numbness in thirty-six of the seventy-one feet, the pattern
of numbness was quite variable and it was bothersome in only four
feet.
Conclusion: With careful preoperative evaluation
and patient selection, resection of a symptomatic interdigital neuroma
through a dorsal approach can result in a high percentage of successful results
more than five years following the procedure.

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