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Doi:10.1016/s0967-5868(03)00010-9

Journal of Clinical Neuroscience (2003) 10(3), 338–339ª 2003 Elsevier Science Ltd. All rights reserved.
doi:10.1016/S0967-5868(03)00010-9 Treatment of painful peripheral neuroma by vein implantation R.J. Mobbs BSc(MED) MB BS, M. Vonau MB BS FRACS, P. Blum MB BS FRACS Department of Neurosurgery, Institute of Neurological Sciences, The Prince of Wales Hospital, Sydney, Australia Summary Painful neuromas form on cutaneous nerves as a result of trauma, pressure, stretch or entrapment. Since the earliest descriptionsof neuromas, proposed treatments have been met with poor results and controversy. The myriad of treatments described include: simpledivision of an affected nerve, implantation into muscle or bone, silicon sleeves and caps, repeated injection of steroids, end-to-side neuro-rrhaphy, medication and vein caps to name a few. Due to encouraging recent reports of treatment of painful neuromas by vein implantation, theauthors describe a simple technique to achieve this surgical goal. As veins are readily accessible due to their proximity in the neurovascularbundle, they serve as a ready source for grafting. The advantages include minimisation of trauma to bone and muscle as compared withprevious treatment techniques and the relative ease of the method.
ª 2003 Elsevier Science Ltd. All rights reserved.
Painful neuromas form on cutaneous nerves as a result of trauma, The authors have trialed several techniques for nerve implantation pressure, stretch or entrapment. In addition, neuromas can be into a vein including a single and dual incision approach. With the psychologically incapacitating with resulting reduction in quality single incision technique, the vein is clamped and divided with an of life. Since the earliest descriptions of neuromas, proposed open ending. The nerve is then inserted into the open end and treatments have been met with poor results and controversy.
sutured closed with an appropriate sized non-absorbable suture.
Furthermore the issue of compensation and litigation complicate The clamp is then removed. This technique is similar to that de- outcomes. The myriad of treatments described include: simple scribed by Herbert and Filan.10 The problem that the authors en- division of the affected nerve, implantation into muscle or bone,1 countered was that the nerve may retract and pull out of the vein, silicon sleeves and caps,2 repeated injection of steroids,3 end-to- leading to failure and potential re-neuroma formation. Thus a dual side neurorrhaphy,4 medication5 and vein caps6 to name a few.
anchoring technique has been developed to help reduce tension on The physiology of neuroma formation and subsequent axonal hyperexcitability is being studied and increasingly understood.
Figs. 1A–E describe the sequence of events of the technique.
Sodium channels accumulate abnormally within the axons of An appropriate incision is performed to expose the neuroma and neuromas and this alteration may underlie the generation of an adjacent normal length of nerve. A vein is next located if hyperexcitability with resulting abnormal sensory phenomena.7 possible (Fig. 1A). Following excision of the neuroma to a normal Methods to minimise neuroma formation and axonal hyperexcit- segment of nerve, the surgeon clamps an adjacent vein at a ability are however not as well understood, thus the countless proximal and distal location (Fig. 1B). A small longitudinal slit is reported techniques to find a solution.
made at either ends of the exposed vessel. A suture is fed up the In a review of the literature, there is one randomized control vein from distal to proximal to attach the nerve and pull through trial investigating the issue of which treatment method is of most (Figs. 1C and D). Once the nerve is fed through the vein it should value. Amputation stumps from neuroma removal were capped be checked to make sure no excessive tension is on the nerve that with epineural ligature, epineural flaps or an epineural graft, with may result in failure of the technique. The slit incisions on the each technique used on 16 nerve endings. Epineural grafts were vein are closed making sure that the suture picks up some epi- significantly more effective in preventing neuroma pain in this neurium to hitch the nerve within the vein (Fig. 1E).
study group.8 In a study of 78 neuromas, Dellon1 trialed im-plantation of neuromas into muscle bulk, stating an overall ex-cellent result of 82% with a mean follow-up of 31 months. The interest in vein implantation follows several case reports, a de- The choice of treatment for painful peripheral nerve neuroma tailed clinical study and a laboratory study.9 The clinical study depends on the surgeonÕs experience and what they have at- involves 14 patients with 79% of patients symptom free and the tempted previously with success. Although the literature does not rest with minor residual symptoms, with a follow-up at 15 give us a definitive answer on the technique of choice, vein im- plantation has received many encouraging anecdotal reports andsuccessful short series reports. The simple technique describedhere helps answer the problem of failure that previous authorshave encountered with vein implantation.
Dellon AL, Mackinnon SE. Treatment of the painful neuroma by neuroma Correspondence to: Dr. R.J. Mobbs BSc(Medc) MB BS, Department of resection and muscle implantation. Plast Reconstr Surg 1986; 77(3): 427–438.
Neurosurgery, 3 Wansey Road, Randwick NSW 2031, Australia.
Swanson AB, Boeve NR, Lumsden RM. The prevention and treatment of Tel.: +61-2-9398-7358; Fax: +61-2-9310-0319; amputation neuromata by silicone capping. J Hand Surg [Am] 1977; 2(1): Operative sequence for vein implantation.
Smith JR, Gomez NH. Local injection therapy of neuromata of the hand with England JD, Happel LT, Kline DG, Gamboni F, Thouron CL, Liu ZP, Levinson triamcinolone acetonide. A preliminary study of twenty-two patients. J Bone SR. Sodium channel accumulation in humans with painful neuromas.
Al-Qattan MM. Prevention and treatment of painful neuromas of the superficial Yuksel F, Kislaoglu E, Durak N, Ucar C, Karacaoglu E. Prevention of painful radial nerve by the end-to-side nerve repair concept: an experimental study and neuromas by epineural ligatures, flaps and grafts. Br J Plast Surg 1997; 50(3): preliminary clinical experience. Microsurgery 2000; 20(3): 99–104.
Rizzo MA. Successful treatment of painful traumatic mononeuropathy with Low CK, Chew SH, Song IC, Ng TH. Implantation of a nerve ending into a carbamazepine: insights into a possible molecular pain mechanism. J Neurol vein. Clin Orthop 2000;(379): 242–246.
Herbert TJ, Filan SL. Vein implantation for treatment of painful cutaneous Chiu DT, Wu J. Treatment of painful neuromas: a case report. Ann Plast Surg neuromas. A preliminary report. J Hand Surg [Br] 1998; 23(2): ª 2003 Elsevier Science Ltd. All rights reserved.
Journal of Clinical Neuroscience (2003) 10(3), 338–339

Source: http://www.neurospineclinic.com.au/pdfs/journal-articles/peripheral-neuroma-vein-implantation.pdf

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