J Hand Microsurg 2022; 14(03): 200-204
DOI: 10.1055/s-0040-1713081
Original Article

Microsurgical Neurectomy for Morton’s Neuroma

Keiichi Muramatsu
1   Department of Orthopedic Surgery, Nagato General Hospital, Nagato, Yamaguchi, Japan
2   Department of Orthopedic Surgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan
,
Yasuhiro Tani
1   Department of Orthopedic Surgery, Nagato General Hospital, Nagato, Yamaguchi, Japan
,
Tetsuya Seto
1   Department of Orthopedic Surgery, Nagato General Hospital, Nagato, Yamaguchi, Japan
,
Jasson Arcinue
1   Department of Orthopedic Surgery, Nagato General Hospital, Nagato, Yamaguchi, Japan
,
Ryuta Iwanaga
2   Department of Orthopedic Surgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan
,
Takashi Sakai
2   Department of Orthopedic Surgery, Yamaguchi University School of Medicine, Ube, Yamaguchi, Japan
› Author Affiliations
Funding None.

Abstract

Introduction “Morton’s neuroma” is one of the common causes of forefoot pain. If conservative therapy fails, surgical treatment should be performed. Microscopy is often used to operate on the digital nerve in the hand. However, to our knowledge, there has only been one report on the use of microsurgical technique. In this study, we describe a new microsurgical technique for Morton’s neuroma and discuss the advantages of this procedure.

Materials and Methods Ten patients with Morton’s neuroma underwent surgical neurolysis or neurectomy using microsurgical technique. All patients were females with a mean age of 53 years (range = 35–65). The average follow-up time after surgery was 18 months (range = 6–24 months).

Results Four cases initially underwent microsurgical neurolysis, but the patient’s symptoms did not improve. Two of these cases were then referred for revision surgery by microsurgical neurectomy. Following neurectomy, the mean preoperative pain and functional score improved significantly. In five cases, histopathology showed the neuroma was surrounded by metatarsal bursitis. In three cases, the nerve was sutured because each stump was easily reached.

Conclusion Microsurgical technique allows careful visualization of the plantar digital nerve even through a dorsal approach. Separation of the digital nerve from the adhesive fibrous tissue can be performed quite readily under the microscope and Morton’s neuroma can then be completely removed en block. In some cases, microsurgical nerve repair may also be possible. A microsurgical approach is a reliable and useful tool for neurectomy of Morton’s neuroma.



Publication History

Article published online:
30 June 2020

© 2020. Society of Indian Hand Surgery & Microsurgeons. All rights reserved.

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