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Matthews BG, Thomson CE, Harding MP, McKinley JC, Ware RS. Treatments for Morton's neuroma. Cochrane Database Syst Rev 2024; 2:CD014687. [PMID: 38334217 PMCID: PMC10853972 DOI: 10.1002/14651858.cd014687.pub2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/10/2024]
Abstract
BACKGROUND Morton's neuroma (MN) is a painful neuropathy resulting from a benign enlargement of the common plantar digital nerve that occurs commonly in the third webspace and, less often, in the second webspace of the foot. Symptoms include burning or shooting pain in the webspace that extends to the toes, or the sensation of walking on a pebble. These impact on weight-bearing activities and quality of life. OBJECTIVES To assess the benefits and harms of interventions for MN. SEARCH METHODS On 11 July 2022, we searched CENTRAL, CINAHL Plus EBSCOhost, ClinicalTrials.gov, Cochrane Neuromuscular Specialised Register, Embase Ovid, MEDLINE Ovid, and WHO ICTRP. We checked the bibliographies of identified randomised trials and systematic reviews and contacted trial authors as needed. SELECTION CRITERIA We included all randomised, parallel-group trials (RCTs) of any intervention compared with placebo, control, or another intervention for MN. We included trials where allocation occurred at the level of the individual or the foot (clustered data). We included trials that confirmed MN through symptoms, a clinical test, and an ultrasound scan (USS) or magnetic resonance imaging (MRI). DATA COLLECTION AND ANALYSIS We used standard Cochrane methodological procedures. We assessed bias using Cochrane's risk of bias 2 tool (RoB 2) and assessed the certainty of the evidence using the GRADE framework. MAIN RESULTS We included six RCTs involving 373 participants with MN. We judged risk of bias as having 'some concerns' across most outcomes. No studies had a low risk of bias across all domains. Post-intervention time points reported were: three months to less than 12 months from baseline (nonsurgical outcomes), and 12 months or longer from baseline (surgical outcomes). The primary outcome was pain, and secondary outcomes were function, satisfaction or health-related quality of life (HRQoL), and adverse events (AE). Nonsurgical treatments Corticosteroid and local anaesthetic injection (CS+LA) versus local anaesthetic injection (LA) Two RCTs compared CS+LA versus LA. At three to six months: • CS+LA may result in little to no difference in pain (mean difference (MD) -6.31 mm, 95% confidence interval (CI) -14.23 to 1.61; P = 0.12, I2 = 0%; 2 studies, 157 participants; low-certainty evidence). (Assessed via a pain visual analogue scale (VAS; 0 to 100 mm); a lower score indicated less pain.) • CS+LA may result in little to no difference in function when compared with LA (standardised mean difference (SMD) -0.30, 95% CI -0.61 to 0.02; P = 0.06, I2 = 0%; 2 studies, 157 participants; low-certainty evidence). (Function was measured using: the American Orthopaedic Foot and Ankle Society Lesser Toe Metatarsophalangeal-lnterphalangeal Scale (AOFAS; 0 to 100 points) - we transformed the scale so that a lower score indicated improved function - and the Manchester Foot Pain and Disability Schedule (MFPDS; 0 to 100 points), where a lower score indicated improved function.) • CS+LA probably results in little to no difference in HRQoL when compared to LA (MD 0.07, 95% CI -0.03 to 0.17; P = 0.19; 1 study, 122 participants; moderate-certainty evidence), and CS+LA may not increase satisfaction (risk ratio (RR) 1.08, 95% CI 0.63 to 1.85; P = 0.78; 1 study, 35 participants; low-certainty evidence). (Assessed using the EuroQol five dimension instrument (EQ-5D; 0-1 point); a higher score indicated improved HRQoL.) • The evidence is very uncertain about the effects of CS+LA on AE when compared with LA (RR 9.84, 95% CI 1.28 to 75.56; P = 0.03, I2 = 0%; 2 studies, 157 participants; very low-certainty evidence). Adverse events for CS+LA included mild skin atrophy (3.9%), hypopigmentation of the skin (3.9%) and plantar fat pad atrophy (2.6%); no adverse events were observed with LA. Ultrasound-guided (UG) CS+LA versus non-ultrasound-guided (NUG) CS+LA Two RCTs compared UG CS+LA versus NUG CS+LA. At six months: • UG CS+LA probably reduces pain when compared with NUG CS+LA (MD -15.01 mm, 95% CI -27.88 to -2.14; P = 0.02, I2 = 0%; 2 studies, 116 feet; moderate-certainty evidence). (Assessed with a pain VAS.) • UG CS+LA probably increases function when compared with NUG CS+LA (SMD -0.47, 95% CI -0.84 to -0.10; P = 0.01, I2 = 0%; 2 studies, 116 feet; moderate-certainty evidence). We do not know of any established minimum clinical important difference (MCID) for the scales that assessed function, specifically, the MFPDS and the Manchester-Oxford Foot Questionnaire (MOXFQ; 0 to 100 points; a lower score indicated improved function.) • UG CS+LA may increase satisfaction compared with NUG CS+LA (risk ratio (RR) 1.71, 95% CI 1.19 to 2.44; P = 0.003, I2 = 15%; 2 studies, 114 feet; low-certainty evidence). • HRQoL was not measured. • UG CS+LA may result in little to no difference in AE when compared with NUG CS+LA (RR 0.42, 95% CI 0.12 to 1.39; P = 0.15, I2 = 0%; 2 studies, 116 feet; low-certainty evidence). AE included depigmentation or fat atrophy for UG CS+LA (4.9%) and NUG CS+LA (12.7%). Surgical treatments Plantar incision neurectomy (PN) versus dorsal incision neurectomy (DN) One study compared PN versus DN. At 34 months (mean; range 28 to 42 months), PN may result in little to no difference for satisfaction (RR 1.06, 95% CI 0.87 to 1.28; P = 0.58; 1 study, 73 participants; low-certainty evidence), or for AE (RR 0.95, 95% CI 0.32 to 2.85; P = 0.93; 1 study, 75 participants; low-certainty evidence) compared with DN. AE for PN included hypertrophic scaring (11.4%), foreign body reaction (2.9%); AE for DN included missed nerve (2.5%), artery resected (2.5%), wound infection (2.5%), postoperative dehiscence (2.5%), deep vein thrombosis (2.5%) and reoperation with plantar incision due to intolerable pain (5%). The data reported for pain and function were not suitable for analysis. HRQoL was not measured. AUTHORS' CONCLUSIONS Although there are many interventions for MN, few have been assessed in RCTs. There is low-certainty evidence that CS+LA may result in little to no difference in pain or function, and moderate-certainty evidence that UG CS+LA probably reduces pain and increases function for people with MN. Future trials should improve methodology to increase certainty of the evidence, and use optimal sample sizes to decrease imprecision.
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Affiliation(s)
- Barry G Matthews
- Faculty of Health, School of Clinical Sciences, Queensland University of Technology (QUT), Brisbane, Australia
| | - Colin E Thomson
- Department of Trauma & Orthopaedics, The Royal Infirmary of Edinburgh and St John's Hospital Livingston, Edinburgh, UK
| | | | - John C McKinley
- Royal Infirmary of Edinburgh and Royal Hospital for Sick Children, Edinburgh, UK
| | - Robert S Ware
- School of Medicine and Dentistry, Griffith University, Brisbane, Australia
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Ortu S, Fiori E, Bagnoli I, Valente A, Pisanu F, Caggiari G, Doria C, Milano L. Complications of alcohol injections for Morton’s neuroma. JOURNAL OF ORTHOPAEDICS, TRAUMA AND REHABILITATION 2022. [DOI: 10.1177/22104917221116392] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
Abstract
Introduction Morton’s neuroma (MN) is a neuropathic metatarsalgia that causes pain in the plantar aspect of the forefoot generally between the third and fourth metatarsal heads. Treatment can be nonoperative or surgical. Among nonoperative procedures, alcohol injections are still commonly used as considered simple, relatively safe and well-tolerated treatment. However, they present transient and minor complications. Methods Two hundred patients with a diagnosis of MN underwent ultrasound-guided injections with a 47.5% alcohol solution between 2013 and 2020. We reviewed the current literature to highlight the known complications of this treatment, comparing them to the complications developed by our patients. Results Three patients out of 200 patients, developed necrosis of skin and subcutaneous tissue not described in previous studies about MN. Conclusions Our study focuses attention on the complications subsequent to the alcohol injection therapy for MN. Patients and surgeons should be aware that in a small number of cases this therapy can be burdened by necrotic complications of the skin.
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Affiliation(s)
| | - Enrico Fiori
- Orthopaedic and Traumatology Department, Sassari University Hospital, Sassari, Italy
| | - Ignazio Bagnoli
- Orthopaedic Department – Foot Surgery, Humanitas Cellini, Torino, Italy
| | - Angiola Valente
- Orthopaedic Department – Foot Surgery, Humanitas Cellini, Torino, Italy
| | - Francesco Pisanu
- Orthopaedic and Traumatology Department, Sassari University Hospital, Sassari, Italy
| | - Gianfilippo Caggiari
- Orthopaedic and Traumatology Department, Sassari University Hospital, Sassari, Italy
| | - Carlo Doria
- Orthopaedic and Traumatology Department, Sassari University Hospital, Sassari, Italy
| | - Luigi Milano
- Orthopaedic Department – Foot Surgery, Humanitas Cellini, Torino, Italy
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Matthews BG, Thomson CE, McKinley JC, Harding MP, Ware RS. Treatments for Morton's neuroma. Hippokratia 2021. [DOI: 10.1002/14651858.cd014687] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- Barry G Matthews
- Faculty of Health, School of Clinical Sciences; Queensland University of Technology (QUT); Brisbane Australia
| | - Colin E Thomson
- Department of Trauma & Orthopaedics; The Royal Infirmary of Edinburgh and St John’s Hospital Livingston; Edinburgh UK
| | - John C McKinley
- Royal Infirmary of Edinburgh and Royal Hospital for Sick Children; Edinburgh UK
| | | | - Robert S Ware
- Menzies Health Institute Queensland; Griffith University; Brisbane Australia
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Archuleta AF, Darbinian J, West T, Weintraub MLR, Pollard JD. Minimally Invasive Intermetatarsal Nerve Decompression for Morton's Neuroma: A Review of 27 Cases. J Foot Ankle Surg 2021; 59:1186-1191. [PMID: 32830016 DOI: 10.1053/j.jfas.2020.05.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/31/2020] [Revised: 02/07/2020] [Accepted: 05/17/2020] [Indexed: 02/03/2023]
Abstract
Minimally invasive nerve decompression for operative management of Morton's neuroma has been shown to be an effective alternative to neurectomy; however, little is known about postoperative outcomes. In this retrospective case series, we reviewed 27 procedures in 25 patients who underwent minimally invasive nerve decompression as primary surgical management for Morton's neuroma. Most subjects (22, or 88%) had 12 or more months of health plan enrollment postoperatively; 3 (12%) had 4 to 7 months of enrollment after the procedure. Postoperative patient satisfaction, complications and the need for a follow-up neurectomy were ascertained from medical record review. Additionally, demographic and clinical data were extracted from electronic sources. Patient satisfaction was unknown for 5 (18.5%) of the 27 procedures. Among the 22 (81.5%) procedures for which there were valid patient satisfaction data, patient satisfaction was excellent for 11 (50%); good for 2 (9.1%), and poor for 9 (40.9%). During the follow-up period, 5 (18.5%) patients required an open neurectomy. Among the 6 (22.2%) patients who presented without a Mulder's sign on physical exam preoperatively, 83% reported excellent results. Minimally invasive nerve decompression may not be as effective as previously seen; however, it may be indicated in patients presenting with absence of a Mulder's sign, a physically small or nascent neuroma.
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Affiliation(s)
- Andy F Archuleta
- Podiatric Medical Student, California School of Podiatric Medicine, Oakland, CA
| | - Jeanne Darbinian
- Senior Data Consultant, Biostatistical Consulting Unit, Kaiser Permanente Division of Research, Oakland, CA
| | - Tenaya West
- Podiatric Surgical Fellow, Palo Alto Medical Foundation, Mountain View, CA
| | - Miranda L Ritterman Weintraub
- Senior Research Project Manager, Department of Graduate Medical Education, Kaiser Permanente Oakland Medical Center, Oakland, CA
| | - Jason D Pollard
- Research Director and Surgeon, Department of Podiatric Surgery, Kaiser Permanente Oakland Medical Center, Oakland, CA.
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Samaila E, Colò G, Rava A, Negri S, Valentini R, Felli L, Magnan B. Effectiveness of corticosteroid injections in Civinini-Morton's Syndrome: A systematic review. Foot Ankle Surg 2021; 27:357-365. [PMID: 32600970 DOI: 10.1016/j.fas.2020.05.001] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/12/2019] [Revised: 04/07/2020] [Accepted: 05/04/2020] [Indexed: 02/04/2023]
Abstract
BACKGROUND The aim of this paper is to analyze the effectiveness of corticosteroid injections (CI), in combination with or without a local anaesthetic, for Civinini-Morton's Syndrome to determine which protocol could be the most appropriate among conservative treatments. METHODS All selected articles were screened using a thorough database search of PubMed, EMBASE and SCOPUS to assess their suitability to the research focus. RESULTS Selection produced 10 articles as full-text, for a total of 590 patients, with a mean follow-up of 14 ± 14.2 (range 3-48) months. Johnson satisfaction scale, resulting from 6 studies, scored 25.6% (range 5-38) and 39.4% (range 15-51.8), respectively completely satisfied and satisfied with minor reservations. Mean VAS, declared in 5 studies, decreased from 70.7 ± 16.5 (range 67-89) to 33.4 ± 7.6 (26-42.5) points (p < 0.01). Most common complication was skin depigmentation in 7 (2.6%) cases. CONCLUSIONS CI appear to be a safe treatment allowing good results with a very low complications rate. A neuroma of 6.3 mm seems to be the cut-off size; below which CI could have best indications and be considered as an intermediate treatment between shoe modifications and more invasive procedures such as percutaneous alcoholization or surgery. LEVEL OF EVIDENCE Level II, systematic review.
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Affiliation(s)
- Elena Samaila
- Department of Orthopedics and Trauma Surgery, University of Verona, Italy
| | | | - Alessandro Rava
- Department of Orthopaedic and Traumatology, University of Turin, Italy
| | - Stefano Negri
- Department of Orthopedics and Trauma Surgery, University of Verona, Italy
| | - Roberto Valentini
- Department of Orthopedics and Trauma Surgery, University of Verona, Italy
| | | | - Bruno Magnan
- Department of Orthopedics and Trauma Surgery, University of Verona, Italy.
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Connors JC, Boike AM, Rao N, Kingsley JD. Radiofrequency Ablation for the Treatment of Painful Neuroma. J Foot Ankle Surg 2021; 59:457-461. [PMID: 32354501 DOI: 10.1053/j.jfas.2019.09.003] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/22/2015] [Revised: 03/14/2019] [Accepted: 09/02/2019] [Indexed: 02/03/2023]
Abstract
Mechanical compression of interdigital nerves beneath the deep transverse intermetatarsal ligament and between the metatarsal heads leads to painful irritation and possible fibrosis. Conservative measures of padding and injections often fail to provide long-term relief. Surgical excision provides definitive relief, but the procedure is not without risk. Incomplete excision and stump neuroma formation are a few of the possible complications associate with open excision. This retrospective cohort study was performed to provide a review of the available literature on the identification and treatment of interdigital neuromas and to examine the overall incidence of patient satisfaction after radiofrequency ablation as definitive treatment for interdigital neuroma formation. This study population consisted of 32 patients (25 females and 7 males with 1 patient having bilateral procedures) with a mean age of 46.3 ± 17 (range 31 to 65) years. For all procedures, the median patient satisfaction score was 92.5 (interquartile range 50 to 100) of 100, with a mean follow-up period of > 2.5 years. Only 1 patient in the study population reported no relief after 3 total procedures. Radiofrequency ablation offers a minimally invasive alternative with a short postoperative recovery course and considerably fewer complications compared with surgical excision of the intermetatarsal neuroma as described in prior reports.
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Affiliation(s)
- James C Connors
- Assistant Professor, Division of Foot/Ankle Surgery and Biomechanics, Kent State University College of Podiatric Medicine, Independence, OH.
| | - Allan M Boike
- Dean-CEO, Professor, Division of Podiatric Surgery, Kent States University College of Podiatric Medicine, Independence, OH
| | - Nilin Rao
- Second-Year Podiatric Surgery Resident, Highlands-Presbyterian/St. Luke's Medical Center, Denver, CO
| | - J Derek Kingsley
- Assistant Professor, Exercise Physiology, Kent State University, Kent, OH
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Thomson L, Aujla RS, Divall P, Bhatia M. Non-surgical treatments for Morton's neuroma: A systematic review. Foot Ankle Surg 2020; 26:736-743. [PMID: 31718949 DOI: 10.1016/j.fas.2019.09.009] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Revised: 08/29/2019] [Accepted: 09/17/2019] [Indexed: 02/04/2023]
Abstract
TITLE Non-surgical treatment for Morton's neuroma: a systematic review. BACKGROUND Morton's neuroma (MN) is an entrapment degenerative neuropathy with a strong predilection for the 3rd interdigital web space. The objective of our study was to identify the most significant evidence produced for the non-operative treatment of Morton's neuroma and assess outcomes of these interventions. METHOD The electronic databases Medline, Ovid EMBASE, CINAHL and Cochrane CENTRAL from inception to October 2018 were searched. Two independent reviewers assessed the quality of the studies using the Modified Coleman Criteria. Statistics were combined across cohort studies to calculate pooled mean results, and improvements in outcomes. RESULTS Initial electronic and hand search identified 486 studies. After title and abstract review there were 38 that went on to full-text review. Finally, 22 studies were included in the final review. We identified 9 different non-operative treatment modalities; Corticosteroid injection, Alcohol injection, Extra-corporeal Shockwave therapy (ESWT), Radiofrequency Ablation (RFA), Cryoablation, Capsaicin injection, Botulinum toxin, Orthosis and YAG Laser Therapy. Corticosteroid showed a statistically significant reduction in mean VAS over all their studies (p < 0.01), with 50% success at 12 months. Alcohol showed promising short-term pain-relieving results only. Orthotics, Capsaicin injections, Cryoablation, Botulinum toxin, RFA and ESWT did show statistically significant improvements, but with limitation to their application. CONCLUSION Following review, the authors would recommend the use of corticosteroid injections to treat Morton's neuromas. The authors feel that radio-frequency ablation and cryoablation would benefit from further well designed randomised controlled trials.
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Affiliation(s)
- Lauren Thomson
- Trauma & Orthopaedic Surgery, University Hospitals of Leicester, Leicester, LE1 5WW, United Kingdom.
| | - Randeep S Aujla
- Trauma & Orthopaedic Surgery, University Hospitals of Leicester, Leicester, LE1 5WW, United Kingdom
| | - Pip Divall
- Clinical Librarian, University Hospitals of Leicester, Leicester, LE1 5WW, United Kingdom
| | - Maneesh Bhatia
- Trauma & Orthopaedic Surgery, University Hospitals of Leicester, Leicester, LE1 5WW, United Kingdom
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DeHeer PA, Bains RS, Grebenyuk FR, Patel S, Nguyen T. Effects of 4% Ethanol Sclerosing Injection on Morton's Neuroma: A Histologic Study. J Am Podiatr Med Assoc 2020; 110:440566. [PMID: 32667994 DOI: 10.7547/17-094] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Nonoperational treatments for Morton's neuroma remain controversial because it is believed that sclerosing injections do not change nerve fibers on a cellular level. Up to 80% success rates with 4% ethanol sclerosing have been documented, and the remainder required operational removal of the painful nerve. We sought to evaluate the histologic characteristics of Morton's neuromas treated with 4% ethanol sclerosing injection versus corticosteroid injection alone in patients who required removal of the nerve for pain relief. METHODS A retrospective histologic review was performed of 23 consecutive patients who were treated with either sclerosing injection or nonsclerosing injection and underwent nerve removal between September 1, 2012, and February 28, 2015. RESULTS Of 19 patients who met the inclusion criteria, eight received sclerosing injections and 11 received nonsclerosing injections. Intraneural fibrosis was more severe in the nonsclerosing injection group (P = .008). CONCLUSION Histologic changes are seen in Morton's neuroma with the use of 4% ethanol sclerosing injection, contrary to findings from previous studies.
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Pabinger C, Malaj I, Lothaller H, Samaila E, Magnan B. Improved Injection Technique of Ethanol for Morton's Neuroma. Foot Ankle Int 2020; 41:590-595. [PMID: 32013586 DOI: 10.1177/1071100720903096] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Morton's neuroma is a common cause of forefoot pain. Various conservative methods (injections of various pharmacologic agents) have been published with an outcome of 6%-75% success rate (free of pain in daily life) per injection. The aim of the present study was to assess the outcome of an improved localization technique, a higher dosage, and a higher percentage of ethanol. METHODS Using fluoroscopic and electroneurographic guidance, 2.5 mL of 70% ethanol were injected into 33 feet with a magnetic resonance imaging (MRI)-verified neuroma. We evaluated patients at up to 5-year follow-up. RESULTS A "success rate" of more than 82% per single injection (defined as free of pain in daily life) was achieved and no recurrence was seen over 5 years. All scores (visual analog scale; Short Form-36 subscales, American Orthopaedic Foot & Ankle Society ankle-hindfoot score) showed significant improvement (P < .0001). Mean 1.2 injections were necessary. No significant side effects were seen. However, some mild pain persisted in some patients who participated in sports. CONCLUSION The injection of 2.5 mL of 70% ethanol under fluoroscopic and electroneurographic guidance was a safe method for the treatment of MRI-verified Morton's neuromas. Combining the effect of a higher percentage of alcohol and a higher dosage and an improved localization technique resulted in a high rate of patients without pain. LEVEL OF EVIDENCE Level IV, cases series, prospective.
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Affiliation(s)
- Christof Pabinger
- Medical University of Innsbruck, Austria.,OPZ Graz, Orthopaedic Private Clinic, Graz, Austria
| | | | | | - Elena Samaila
- Clinica Ortopedica e Traumatologica, Università di Verona, C.O.C. G.B. Rossi, Verona, Italy
| | - Bruno Magnan
- Clinica Ortopedica e Traumatologica, Università di Verona, C.O.C. G.B. Rossi, Verona, Italy
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Samaila EM, Ambrosini C, Negri S, Maluta T, Valentini R, Magnan B. Can percutaneous alcoholization of Morton's neuroma with phenol by electrostimulation guidance be an alternative to surgical excision? Long-term results. Foot Ankle Surg 2020; 26:314-319. [PMID: 31064701 DOI: 10.1016/j.fas.2019.04.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 03/26/2019] [Accepted: 04/07/2019] [Indexed: 02/04/2023]
Abstract
BACKGROUND Percutaneous alcoholization with phenol by electrostimulation guidance for the treatment of Morton's neuroma is proposed to determine a permanent chemical neurolysis. METHODS 115 patients for 125 Morton's neuromas were treated. Ten patients were affected by multiple neuromas. Visual Analogue Scale and AOFAS score were used for the clinical assessment. RESULTS The mean follow-up was 8,3 years. The pre-alcoholization VAS was 85.84 ± 12.00, while at follow-up scored 28.85 ± 31.35, showing a significant decrease improving in 113/125 cases (90.4%). Treatment was considered successful with a reduction of the VAS value superior to 50% in 89 out of 125 patients (71.2%). The mean overall AOFAS score at -up was 85.09 ± 13.41. CONCLUSIONS Needle-electrode guided percutaneous alcoholization is an outpatient, minimally invasive procedure with low rate of complications. Better results of those obtained with traditional conservative treatments and comparable with those reported with other alcohols injections or surgical nerve excision were observed. LEVEL OF EVIDENCE Level IV, retrospective case series.
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Affiliation(s)
| | - Carlo Ambrosini
- Department of Orthopedics and Trauma Surgery, University of Verona, Italy
| | - Stefano Negri
- Department of Orthopedics and Trauma Surgery, University of Verona, Italy
| | - Tommaso Maluta
- Department of Orthopedics and Trauma Surgery, University of Verona, Italy
| | - Roberto Valentini
- Department of Orthopedics and Trauma Surgery, University of Verona, Italy
| | - Bruno Magnan
- Department of Orthopedics and Trauma Surgery, University of Verona, Italy.
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Bhatia M, Thomson L. Morton's neuroma - Current concepts review. J Clin Orthop Trauma 2020; 11:406-409. [PMID: 32405199 PMCID: PMC7211826 DOI: 10.1016/j.jcot.2020.03.024] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2020] [Revised: 03/25/2020] [Accepted: 03/26/2020] [Indexed: 01/29/2023] Open
Abstract
Morton's neuroma is a common pathology affecting the forefoot. It is not a true neuroma but is fibrosis of the nerve. This is caused secondary to pressure or repetitive irritation leading to thickness of the digital nerve, located in the third or second intermetatarsal space. The treatment options are: orthotics, steroid injections and surgical excision usually performed through dorsal approach. Careful clinical examination, patient selection, pre-operative counselling and surgical technique are the key to success in the management of this condition.
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Pinter Z, Odom C, McGee A, Paul K, Huntley S, Johnson JL, Shah A. Morton's Neuroma Excision: What Are We Really Doing? Which Retractor Is Superior? Foot Ankle Spec 2019; 12:272-277. [PMID: 30111167 DOI: 10.1177/1938640018790013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
BACKGROUND When using a dorsal approach for Morton's neuroma excision, the most common complication is recurrent Morton's neuroma. The present cadaveric study demonstrates how far proximally the nerve is resected during a dorsal approach and examines both the laminar spreader and Gelpiretractor to determine which instrument facilitates maximal proximal resection of the nerve. METHODS This study involved 12 fresh-frozen cadaver specimens, each of which underwent a dorsal approach to the interdigital nerve with proximal resection. Either a laminar spreader or a Gelpi retractor was used to improve visualization of the intermetatarsal space. The interdigital nerve was then resected, and the lengths of the cut nerves were compared based on the retractor employed. RESULTS The mean length of proximal resection in the second intermetatarsal space was 2.42 cm when using the laminar spreader and 1.93 cm when using the Gelpi retractor (P = .252). In the third intermetatarsal space, the mean length of proximal resection was 2.14 cm when using the Laminar spreader and 1.48 cm when using the Gelpi retractor (P = .166). CONCLUSION This study demonstrates how far proximal the interdigital nerve is resected during a dorsal approach to Morton's neuroma and shows no statistically significant difference between the Laminar spreader and the Gelpi retractor. Levels of Evidence: Level V: Cadaver study.
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Affiliation(s)
- Zachariah Pinter
- University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| | - Christopher Odom
- University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| | - Andrew McGee
- University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| | - Kyle Paul
- University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| | - Samuel Huntley
- University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| | - John L Johnson
- University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
| | - Ashish Shah
- University of Alabama at Birmingham School of Medicine, Birmingham, Alabama
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Matthews BG, Hurn SE, Harding MP, Henry RA, Ware RS. The effectiveness of non-surgical interventions for common plantar digital compressive neuropathy (Morton's neuroma): a systematic review and meta-analysis. J Foot Ankle Res 2019; 12:12. [PMID: 30809275 PMCID: PMC6375221 DOI: 10.1186/s13047-019-0320-7] [Citation(s) in RCA: 31] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/11/2018] [Accepted: 01/29/2019] [Indexed: 12/21/2022] Open
Abstract
Background Morton’s neuroma (MN) is a compressive neuropathy of the common plantar digital nerve. It is a common compressive neuropathy often causing significant pain which limits footwear choices and weight bearing activities. This paper aims to review non-surgical interventions for MN, to evaluate the evidence base for the clinical management of MN. Methods Electronic biomedical databases (CINAHL, EMBASE, MEDLINE and Cochrane) were searched to January 2018 for studies evaluating the effectiveness of non-surgical interventions for Morton’s neuroma. Outcome measures of interest were treatment success rate (SR) (binary) and pain as measured using 100-point visual analogue scale (VAS) (continuous). Studies with and without control groups were included and were evaluated for methodological quality using the Downs and Black Quality Index. Results from randomised controlled trials (RCT) were compared between-groups, and case series were compared pre- versus post-treatment. Effect estimates are presented as odds ratios (OR) for binary data or mean differences (MD) for continuous data. Random effects models were used to pool effect estimates across studies where similar treatments were used. Heterogeneity was assessed using the I2 statistic. Results A total of 25 studies met the inclusion criteria, seven RCTs and 18 pre/post case series. Eight different interventions were identified, with corticosteroid or sclerosing injections being the most often reported (seven studies each). Results from a meta-analysis of two RCTs found corticosteroid injection decreased pain more than control on VAS (WMD: -5.3, 95%CI: -7.5 to − 3.2). Other RCTs reported efficacy of: manipulation/mobilisation versus control (MD: -15.3, 95%CI: -29.6 to − 1.0); extracorporeal shockwave therapy versus control (MD: -5.9, 95%CI: -21.9 to 10.1). Treatment success was assessed for extracorporeal shockwave therapy versus control (OR: 0.3, 95%CI: 0.0 to 7.1); and corticosteroid injection vs footwear/padding (OR: 6.0, 95%CI: 1.9 to 19.2). Sclerosing and Botox injections, radiofrequency ablation and cryoneurolysis have been investigated by case series studies, however these were of limited methodological quality. Conclusions Corticosteroid injections and manipulation/mobilisation are the two interventions with the strongest evidence for pain reduction, however high-quality evidence for a gold standard intervention was not found. Although the evidence base is expanding, further high quality RCTs are needed. Electronic supplementary material The online version of this article (10.1186/s13047-019-0320-7) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Barry G Matthews
- 1School of Clinical Sciences, Queensland University of Technology, Kelvin Grove, Brisbane, QLD 4059 Australia
| | - Sheree E Hurn
- 1School of Clinical Sciences, Queensland University of Technology, Kelvin Grove, Brisbane, QLD 4059 Australia.,2Institute of Health and Biomedical Innovation, Queensland University of Technology, Kelvin Grove, Brisbane, QLD 4059 Australia
| | - Michael P Harding
- 3School of Health Sciences, University of South Australia, Adelaide, SA 5000 Australia
| | - Rachel A Henry
- Rachel Henry Podiatry, Clayfield, Brisbane, QLD 4011 Australia
| | - Robert S Ware
- 5Menzies Health Institute Queensland, Griffith University, Nathan, Brisbane, QLD 4111 Australia
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Lu C, Sun X, Wang C, Wang Y, Peng J. Mechanisms and treatment of painful neuromas. Rev Neurosci 2018; 29:557-566. [DOI: 10.1515/revneuro-2017-0077] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2017] [Accepted: 11/18/2017] [Indexed: 02/01/2023]
Abstract
AbstractA painful neuroma is a common complication of a peripheral nerve injury or amputation, and it can cause tremendous pain that is resistant to most analgesics. Furthermore, painful neuromas have a high postoperative recurrence rate. Painful neuromas are often accompanied by functional disorders, drastically reducing the patient’s quality of life. Several pathophysiological mechanisms have been proposed to explain this type of neuropathic pain, including peripheral and central sensitisation and the involvement of nerve growth factor, α-smooth muscle actin, the cannabinoid CB2 receptor and structural changes in neuroma fibres. Nevertheless, the mechanisms of neuroma-associated pain are not fully understood, contributing to the challenge of managing patients with painful neuromas. There are several effective treatment methods, although none are universally accepted. This review summarises the common mechanisms and treatments of painful neuromas, attempting to link the mechanisms and treatments. We hope to provide useful guidelines for choosing the appropriate treatment for the management of painful neuromas.
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Santos D, Morrison G, Coda A. Sclerosing alcohol injections for the management of intermetatarsal neuromas: A systematic review. Foot (Edinb) 2018; 35:36-47. [PMID: 29778841 DOI: 10.1016/j.foot.2017.12.003] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/14/2017] [Revised: 12/18/2017] [Accepted: 12/23/2017] [Indexed: 02/04/2023]
Abstract
An intermetatarsal neuroma is a plantar digital neuritis causing metatarsalgia of the affected inter-metatarsal space. At present the evidence to support the management of the condition is poor with only some quality evidence supporting the short-term management of intermetatarsal neuromas using steroid injections. Some authors have supported the use of alcohol sclerosing intra-lesional injections to treat intermetatarsal neuromas. Following a search of the evidence 11 articles were identified. The systematic review found that alcohol injections appear to be safe although some papers report a short-term side effect of a flogistic reaction and there are variances in the alcohol concentration used and guiding verses not guiding the injection using ultrasound imaging. Some of the evidence may suggest a sclerosing histological effect of the nerve. However, all the studies reviewed present a research design offering a low level of evidence that is open to methodological biases and interpretation. Thus, this review found insufficient high-quality research evidence to afford conclusions on the management of intermetatarsal neuromas with alcohol sclerosing agent injections.
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Affiliation(s)
- Derek Santos
- School of Health Sciences, Podiatry, Queen Margaret University, Edinburgh, EH21 6UU, UK.
| | - Graeme Morrison
- School of Health Sciences, Podiatry, Queen Margaret University, Edinburgh, EH21 6UU, UK.
| | - Andrea Coda
- The University of Newcastle, School of Health Sciences, Faculty of Health and Medicine, Health Precinct, BE154, P.O. Box 127, Ourimbah, NSW, 2258, Australia.
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Penna A, Konstantatos AH, Cranwell W, Paul E, Bruscino-Raiola FR. Incidence and associations of painful neuroma in a contemporary cohort of lower-limb amputees. ANZ J Surg 2018; 88:491-496. [DOI: 10.1111/ans.14293] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2016] [Revised: 09/30/2017] [Accepted: 10/04/2017] [Indexed: 12/01/2022]
Affiliation(s)
- Anthony Penna
- Department of Plastic, Hand and Faciomaxillary Surgery; Alfred Hospital; Melbourne Victoria Australia
| | - Alex H. Konstantatos
- Department of Anaesthesia and Perioperative Medicine; Alfred Hospital; Melbourne Victoria Australia
- Faculty of Medicine, Nursing and Health Sciences, Monash University; Melbourne Victoria Australia
- Zhejiang University School of Medicine; Hangzhou China
| | - William Cranwell
- Department of Surgery, Royal Melbourne Hospital; Melbourne Victoria Australia
| | - Eldho Paul
- School of Public Health and Preventive Medicine; Monash University; Melbourne Victoria Australia
- Clinical Haematology Department; Alfred Hospital; Melbourne Victoria Australia
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Lee K, Hwang IY, Ryu CH, Lee JW, Kang SW. Ultrasound-Guided Hyaluronic Acid Injection for the Management of Morton's Neuroma. Foot Ankle Int 2018; 39:201-204. [PMID: 29153007 DOI: 10.1177/1071100717739578] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Morton's neuroma is one of the common causes of forefoot pain. In the present study, hyaluronic acid injection was performed on patients to determine the efficacy and adverse effects of hyaluronic acid in management of Morton's neuroma. METHODS Eighty-three patients with Morton's neuroma in their third intermetatarsal space with definite Mulder's click were included in the study. Those with severe forefoot deformities such as forefoot cavus or hallux valgus on plain X-rays were excluded. Ultrasound-guided hyaluronic acid injections were performed on all patients weekly for 3 weeks. Pain during walking using visual analogue scale (VAS) and AOFAS Forefoot Scale were prospectively evaluated preinjection, and at 2, 4, 6, 12 months postinjection. RESULTS Significant improvement in VAS and AOFAS Forefoot Scale were seen overall at 2 months after hyaluronic acid injections ( P < .05). Then, there were almost no changes after 4 months, continuing until 12 months. The mean VAS was decreased from 73.1 initially to 23.0 at 12 months and AOFAS Forefoot Scale was increased from 32.2 to 86.5. There were no complications which occurred. CONCLUSION In the present study, ultrasound-guided hyaluronic injection was clinically effective for pain relief and functional improvement for at least 12 months in patients with Morton's neuroma. However, numbness associated with Morton's neuroma should be addressed more cautiously since it may persist without much improvement. LEVEL OF EVIDENCE Level IV, retrospective case series.
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Affiliation(s)
- Kang Lee
- 1 Department of Orthopaedic Surgery, Chamjoeunhospital, Gwangju, Gyunggi, Republic of Korea
| | - Il-Yeong Hwang
- 2 Department of Orthopedic Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
| | - Chang Hyun Ryu
- 3 Department of Orthopaedic Surgery, SeoulChuk Hospital, Seoul, Republic of Korea
| | - Jae Woo Lee
- 4 Department of Orthopaedic Surgery, Kangwon National University, Gangwon, Republic of Korea
| | - Seung Woo Kang
- 2 Department of Orthopedic Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, Republic of Korea
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Seok H, Kim SH, Lee SY, Park SW. Extracorporeal Shockwave Therapy in Patients with Morton's Neuroma A Randomized, Placebo-Controlled Trial. J Am Podiatr Med Assoc 2016; 106:93-9. [PMID: 27031544 DOI: 10.7547/14-131] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND The aim of this study was to evaluate the efficacy of extracorporeal shockwave therapy (ESWT) for the treatment of Morton's neuroma by measuring changes in patient pain, function, and neuroma size. METHODS Patients with Morton's neuroma were randomly assigned to either the ESWT group or the sham stimulation group. Outcome measures, including visual analog scale (VAS) and American Orthopaedic Foot and Ankle Society lesser toes (AOFAS) scores, were assessed at baseline and 1 and 4 weeks after treatment. The Johnson satisfaction test was also performed 1 and 4 weeks after treatment. The neuroma diameter was measured using ultrasonography at baseline and 4 weeks after treatment. RESULTS Patients receiving ESWT exhibited significantly decreased VAS scores 1 and 4 weeks after treatment relative to baseline, and AOFAS scores were significantly improved 4 weeks after treatment relative to baseline. In the sham stimulation group, VAS and AOFAS scores showed no significant changes at any time after treatment. Neither group showed significant changes in Johnson satisfaction test results or neuroma diameter. CONCLUSIONS These results suggest that ESWT may reduce pain in patients with Morton's neuroma.
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Affiliation(s)
- Hyun Seok
- Department of Rehabilitation Medicine, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Sang-Hyun Kim
- Department of Rehabilitation Medicine, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Seung Yeol Lee
- Department of Rehabilitation Medicine, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
| | - Sung Won Park
- Department of Rehabilitation Medicine, Soonchunhyang University College of Medicine, Bucheon, Republic of Korea
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Percutaneous alcohol injection under sonographic guidance in Morton’s neuroma: follow-up in 220 treated lesions. Radiol Med 2016; 121:597-604. [DOI: 10.1007/s11547-016-0622-9] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2015] [Accepted: 01/19/2016] [Indexed: 10/22/2022]
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Cashley DG, Cochrane L. Manipulation in the Treatment of Plantar Digital Neuralgia: A Retrospective Study of 38 Cases. J Chiropr Med 2015; 14:90-8. [PMID: 26257593 PMCID: PMC4523570 DOI: 10.1016/j.jcm.2015.04.003] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 04/09/2015] [Accepted: 04/15/2015] [Indexed: 12/26/2022] Open
Abstract
OBJECTIVE The purpose of this retrospective case series is to describe treatment outcomes for patients with plantar digital neuralgia (PDN) (Morton's neuroma) who were treated using foot manipulation. METHODS Charts were reviewed retrospectively for patients with a diagnosis of PDN and who received a minimum of 6 treatments consisting of manipulation alone. Visual analogue pain scales (VAS) and pressure threshold meter readings (PTM) were extracted as outcome measures. RESULTS Thirty-eight cases met inclusion criteria. Mean pretreatment duration of pain was 28 months. Mean pretreatment VAS was 69.5/100 mm. Mean pretreatment PTM was 2.54 Kp. By the sixth treatment, 30 (79%) of the 38 patients scored a VAS of 0 mm and a further 4 (10%) were below 10 mm. Contralateral limb PTM showed a mean pre-treatment score of 5.5 Kp, which rose slightly to 5.85 Kp. This compared to a pre-treatment score of 2.54 Kp rising to 5.86 Kp in the affected limb. This represents a 126% increase in the affected side compared to 6.5% in the unaffected limb. Statistical analysis demonstrated a significant linear trend between decreasing VAS and manipulation (P < .001). CONCLUSION The patients with PDN who were included in this case series improved with conservative care that included only foot manipulation.
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Affiliation(s)
- David G. Cashley
- PhD Student, Department of Life Sciences, Queen Margaret University, Edinburgh, Scotland
| | - Lynda Cochrane
- Doctor, Division of Population Health Sciences, Medical Research Institute, University of Dundee, Dundee, Scotland
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21
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Pasquali C, Vulcano E, Novario R, Varotto D, Montoli C, Volpe A. Ultrasound-guided alcohol injection for Morton's neuroma. Foot Ankle Int 2015; 36:55-9. [PMID: 25367249 DOI: 10.1177/1071100714551386] [Citation(s) in RCA: 41] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Ultrasonography-guided alcohol injection (USGAI) of Morton's neuroma represents an alternative to operative treatment. Nonetheless, the literature only reports few small studies evaluating the effectiveness of the treatment. The aim of the present retrospective study was to assess the effectiveness of USGAI to treat Morton's neuroma in 508 patients at 2 medical centers. METHODS Between January 2001 and January 2012, 508 patients with 540 Morton's neuroma had USGAI for Morton's neuroma. Only second and third web-space neuromas were included in this study. RESULTS A mean number of 3.0 (range, 1 to 4) injections were performed for each neuroma. Mean local inflammatory reaction was 0.7 (range, 0 to 2). There were no other local or systemic complications. The overall mean pre-USGAI VAS score was 8.7 (range, 6 to 10), while the post-USGAI VAS score at 1 year was 3.6 (range, 0 to 9). The delta VAS between the pre- and post-USGAI was statistically significant (P < .0001). At 1-year follow-up 74.5% of patients were satisfied with the procedure. CONCLUSION USGAI produced encouraging results in over 500 patients affected by Morton's neuroma. The procedure proved to be safe in all patients. LEVEL OF EVIDENCE Level IV, retrospective case series.
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Affiliation(s)
- Cecilia Pasquali
- Department of Orthopaedics and Traumatology, Ospedale di Circolo, Luino, Italy
| | - Ettore Vulcano
- Department of Orthopaedics and Traumatology, University of Insubria, Varese, Italy
| | - Raffaele Novario
- Department of Medical Physics, Ospedale di Circolo, Luino, Italy
| | - Davide Varotto
- Foot & Ankle Clinic, Policlinico di Abano Terme, Abano Terme, Italy
| | - Carlo Montoli
- Department of Orthopaedics and Traumatology, Ospedale di Circolo, Luino, Italy
| | - Antonio Volpe
- Foot & Ankle Clinic, Policlinico di Abano Terme, Abano Terme, Italy
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Mazoch MJ, Cheema GA, Suva LJ, Thomas RL. Effects of alcohol injection in rat sciatic nerve as a model for Morton's neuroma treatment. Foot Ankle Int 2014; 35:1187-91. [PMID: 25097192 PMCID: PMC4321877 DOI: 10.1177/1071100714546188] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Previous studies have shown that the injection of dehydrated alcohol has been successful for the treatment of Morton's neuroma in the foot. In this study, we determined the cellular effect of injection of alcohol into and around the sciatic nerve of rats and measured the extent of cell necrosis and/or any associated histologic or inflammatory changes. METHODS Twenty-two male (~375 g) Wistar rats were randomized into 2 groups each receiving alcohol injections into or around the sciatic nerve after nerve exposure under sterile technique. Group 1 rats were injected with a 0.5 ml solution of 0.5% Marcaine in the left sciatic nerve as a control group. In the right sciatic nerve a 0.5 ml solution of 4% ethanol with 0.5% Marcaine was injected. Group 2 rats received 0.5 ml of 20% ethanol with 0.5% Marcaine injected into the left sciatic nerve and 0.5 ml of 30% ethanol with 0.5% Marcaine injected into the right sciatic nerve. In each group, the rats were placed in 3 subgroups: intraneural, perineural, perimuscular injections. All rats were sacrificed and tissue harvested for histologic evaluation at day 10 post injection. RESULTS No evidence of alcohol-associated cell necrosis, apoptosis, or apparent inflammation was observed in histologic specimens of any injected nerves, perineural tissue, or muscles in controls or experimental groups regardless of concentration of ethanol injected on day 10. CONCLUSION We concluded that alcohol injection (≤30% ethanol) into and/or around the sciatic nerve or the adjacent muscle of rats has no histologic evidence of necrosis or inflammation to the nerve or surrounding tissue. There was no observable histological change in apoptosis, or cell number, in response to the alcohol injection. CLINICAL RELEVANCE The lack of any measureable changes in nerve or adjacent muscle histology with ethanol injection into the rat sciatic nerve (and surrounding tissues) raises questions about the efficacy of using ethanol injections in the treatment of Morton's neuroma in human clinical practice.
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Affiliation(s)
- Mathew J. Mazoch
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences – Suite # 531, 4301 W. Markham, Little Rock, AR 72205
| | - Gulraiz A. Cheema
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences – Suite # 531, 4301 W. Markham, Little Rock, AR 72205
| | - Larry J. Suva
- Center for Orthopaedic Research, University of Arkansas for Medical Sciences – Suite # 531, 4301 W. Markham, Little Rock, AR 72205
| | - Ruth L. Thomas
- Department of Orthopaedic Surgery, University of Arkansas for Medical Sciences – Suite # 531, 4301 W. Markham, Little Rock, AR 72205
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Jung YJ, Park WY, Jeon JH, Mun JH, Cho YS, Jun AY, Jang KU, Seo CH. Outcomes of ultrasound-guided extracorporeal shock wave therapy for painful stump neuroma. Ann Rehabil Med 2014; 38:523-33. [PMID: 25229031 PMCID: PMC4163592 DOI: 10.5535/arm.2014.38.4.523] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/03/2014] [Accepted: 06/16/2014] [Indexed: 01/24/2023] Open
Abstract
OBJECTIVE To investigate the effect of extracorporeal shock wave therapy (ESWT) on painful stump neuroma. METHODS Thirty patients with stump neuroma at the distal end of an amputation site were assigned randomly to the ESWT group (n=15) and the transcutaneous electrical nerve stimulation (TENS)+desensitization+pharmacological treatment group (n=15). For 3 weeks, the ESWT group received a weekly session involving 1,500 pulses at 0.10 mJ/mm(2), while the control group was treated 10 times each, 40 minutes per day with TENS and desensitization treatment, and daily medication for 3 weeks. ESWT stimulation was given by focusing on the area at the neuroma site clearly identified by ultrasound. RESULTS The changes in the McGill pain questionnaire were 38.8±9.0 prior to treatment and 11.8±3.1 following the treatment. The corresponding values for the control group were 37.2±7.7 and 28.5±10.3. The changes between groups were significantly different (p=0.035). The change in visual analog scale prior to and after treatment was 7.0±1.5 and 2.8±0.8 in the ESWT group, respectively, and 7.2±1.4 and 5.8±2.0 in the control group. These changes between the groups were also significantly different (p=0.010). The outcome in the pain rating scale also showed significant differences between groups (p<0.001). Changes in neuroma size and pain pressure threshold (lb/cm(2)) were not significantly different between groups (p>0.05). CONCLUSION The study findings imply that ESWT for stump neuroma is superior to conventional therapy.
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Affiliation(s)
- Yun Jae Jung
- Department of Rehabilitation Medicine, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Won Yong Park
- Department of Rehabilitation Medicine, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Jong Hyun Jeon
- Department of Rehabilitation Medicine, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Jeong Hyeon Mun
- Department of Rehabilitation Medicine, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Yoon Soo Cho
- Department of Rehabilitation Medicine, Hangang Sacred-Heart Hospital, Hallym University College of Medicine, Seoul, Korea
| | - Ah Young Jun
- Department of Rehabilitation Medicine, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Ki Un Jang
- Department of Rehabilitation Medicine, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Korea
| | - Cheong Hoon Seo
- Department of Rehabilitation Medicine, Hangang Sacred-Heart Hospital, Hallym University College of Medicine, Seoul, Korea
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Morgan P, Monaghan W, Richards S. A systematic review of ultrasound-guided and non-ultrasound-guided therapeutic injections to treat Morton's neuroma. J Am Podiatr Med Assoc 2014; 104:337-48. [PMID: 25076076 DOI: 10.7547/0003-0538-104.4.337] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
BACKGROUND Morton's neuroma is a frequently painful condition of the forefoot, causing patients to seek medical care to alleviate symptoms. A plethora of therapeutic options is available, some of which include injection therapies. Researchers have investigated injection therapy for Morton's neuroma, and latterly the evidence base has been augmented with methods that use diagnostic ultrasound as a vehicle to deliver the injectate under image guidance for additional accuracy. To date, there seems to be no consensus that ultrasound-guided injections provide better therapeutic outcomes than nonguided injections for the treatment of Morton's neuroma. METHODS A systematic review was chosen because this method can undertake such a process. The review process identified 13 key papers using predetermined inclusion and exclusion criteria, which then underwent methodological quality assessment using a pretested Quality Index. A narrative synthesis of the review findings is presented in light of the heterogeneity of the data from the extraction process. RESULTS This systematic review provides an argument that ultrasound guidance can produce better short- and long-term pain relief for corticosteroid injections, can reduce the need for additional procedures in a series of sclerosing alcohol injections, can reduce the surgical referral rate, and can add efficacy to a single injection. CONCLUSIONS Ultrasound guidance should be considered for injection therapy in the management of Morton's neuroma.
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Affiliation(s)
- Peter Morgan
- Biomechanics Department, South Tyneside Foundation Trust, South Shields, England
| | - Wendy Monaghan
- Biomechanics Department, South Tyneside Foundation Trust, South Shields, England
| | - Simon Richards
- Medical Imaging Department, Teesside University, Middlesbrough, England
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Abstract
Forefoot pain in the adult often alters mobility and has a negative impact on quality of life. Metatarsalgia describes pain localized to the forefoot. Forefoot pain may be caused by conditions of the lesser toes themselves (eg, hammertoes, mallet toes, claw toes). The pathophysiology of lesser toe deformities is complex and is affected by the function of intrinsic and extrinsic muscle units. In addition to lesser toe and metatarsal abnormality, forefoot pain can be attributed to interdigital neuritis, disorders of the plantar skin, and gastrocsoleus contracture. Treatment of these conditions may include shoe modifications, appliances, therapeutic exercises, and surgical repair.
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Affiliation(s)
- John A DiPreta
- Division of Orthopaedic Surgery, Albany Medical Center, Albany Medical College, Capital Region Orthopaedics, 1367 Washington Avenue, Suite 200, Albany, NY 12206, USA.
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Climent JM, Mondéjar-Gómez F, Rodríguez-Ruiz C, Díaz-Llopis I, Gómez-Gallego D, Martín-Medina P. Treatment of Morton neuroma with botulinum toxin A: a pilot study. Clin Drug Investig 2014; 33:497-503. [PMID: 23740337 PMCID: PMC3691490 DOI: 10.1007/s40261-013-0090-0] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Background and Objective Morton neuroma is a common cause of metatarsalgia of neuropathic origin. Systematic reviews suggest that insufficient studies have been performed on the efficacy of the different treatments available. OnabotulinumtoxinA has shown a degree of usefulness in other conditions associated with neuropathic pain. The aim of this study was to investigate the therapeutic potential of onabotulinumtoxinA in Morton neuroma. Patients and Methods We present an open-label, pilot study with 17 consecutive patients with Morton neuroma and pain of more than 3 months’ duration that had not responded to conservative treatment with physical measures or corticosteroid injection. Patients received one onabotulinumtoxinA injection in the area of the neuroma. The main outcome measure was the variation in the pain on walking evaluated using a visual analogue scale (VAS) before treatment and at 1 and 3 months after treatment. The secondary outcome was the change in foot function, which was assessed using the Foot Health Status Questionnaire. Results In the overall group, the mean initial VAS score on walking was 7. This mean score had fallen to 4.8 at 1 month after treatment and to 3.7 at 3 months. Twelve patients (70.6 %) reported an improvement in their pain and five patients (29.4 %) reported no change; exacerbation of the pain did not occur in any patient. Improvements were also observed in two of the dimensions of the Foot Health Status Questionnaire: foot pain, which improved from a mean of 38.88 before treatment to 57 at 3 months, and foot function, which improved from a mean of 42.27 before treatment to 59.9 at 3 months. Clinical variables including age, sex, site and size of the lesion, standing activity, weekly duration of walking, footwear, foot type and footprint had no influence on the outcome. No adverse effects were reported. Conclusions In this pilot study, injection with onabotulinumtoxinA was shown to be of possible usefulness to relieve the pain and improve function in Morton neuroma. This finding opens the door to further clinical research.
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Affiliation(s)
- José M Climent
- Department of Physical Medicine and Rehabilitation, Hospital General Universitario, Maestro Alonso 109, 03010, Alicante, Spain.
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27
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Abstract
BACKGROUND Although many treatment modalities are available for Morton's neuroma (MN), studies looking at the long-term effectiveness of most forms of treatment are scarce. The injection of MN with alcohol has gained popularity over the past 10 years with widespread media coverage. Many surgeons have anecdotally questioned the long-term effectiveness of this treatment. We reviewed a cohort of patients at an average 5-year follow-up to assess the medium-term results of alcohol injection. METHODS We used the modified Johnson score and visual analogue scales to assess 45 of the original cohort of patients with an average follow-up of 61 months (range, 33-73 months). Any complications from the procedure were also noted. RESULTS Our results indicated that by 5 years, 16 of 45 patients had undergone surgical treatment and a further 13 patients had return of symptoms. Only 29% (13/45) remained symptom free. The visual analog scale and modified Johnson scores showed statistically significant deterioration in patients' symptoms at 5 years following alcohol injection. CONCLUSION Injection with alcohol sclerosant for MN has been marketed as a definitive management option comparable to surgical excision. Our investigation illustrated that although short-term results are encouraging, alcohol injection does not offer permanent resolution of symptoms for most patients and can be associated with considerable morbidity. Our investigation provides the only long-term data for alcohol injection treatment of MN. LEVEL OF EVIDENCE Level II, prospective case series.
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Abstract
Morton's neuroma is a common condition mainly affecting middle aged women, and there are many proposed etiological theories involving chronic repetitive trauma, ischemia, entrapment, and intermetatarsal bursitis. Incorrect terminology suggests that the underlying pathological process is a nerve tumor, although histological examination reveals the presence of inflammatory tissue-that is, perineural fibrosis. The common digital nerve and its branches in the third planter webspace are most commonly affected. Diagnosis is usually made through history taking and clinical examination but may be aided by ultrasonography and magnetic resonance imaging. Current nonoperative treatment strategies include shoe-wear modifications, custom made orthoses, and injections of local anesthetic agents, sclerosing agents, and steroids. Operative management options primarily involve either nerve decompression or neurectomy. We have reviewed the published literature to evaluate the outcomes of the available diagnostic modalities and treatment options and present an algorithm for clinical practice.
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Affiliation(s)
- Sameer Jain
- Department of Trauma & Orthopaedic Surgery, Scarborough General Hospital, Woodlands Drive, Scarborough, North Yorkshire, YO12 6QL, UK.
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29
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Abstract
OBJECTIVES To perform a topical review of the published literature on painful neuromas. METHODS A MEDLINE search was performed using the MESH terms "neuroma", "pain", "diagnosis", and "treatment" for all dates. RESULTS Acoustic neuromas and intraabdominal neuromas were excluded from a total of 7616 articles. The reference lists from these articles were further reviewed to obtain other relevant articles. DISCUSSION Neuromas develop as part of a normal reparative process following peripheral nerve injury. Painful neuromas can induce intense pain resulting in immense suffering and disability. MRI aids the diagnosis, but, ultrasound imaging allows cost effective accurate diagnosis and localization of neuromas by demonstrating their direct contiguity with the nerve of origin. Management options for painful neuromas include pharmacotherapy, prosthetic adjustments, steroid injection, chemical neurolysis, cryoablation, and radiofrequency ablation. Ultrasound imaging guidance has improved the success in localizing and targeting the neuromas. This review discusses the patho-physiology and accumulated evidence for various therapies and the current percutaneous interventional management options for painful neuromas.
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Musson RE, Sawhney JS, Lamb L, Wilkinson A, Obaid H. Ultrasound guided alcohol ablation of Morton's neuroma. Foot Ankle Int 2012; 33:196-201. [PMID: 22734280 DOI: 10.3113/fai.2012.0196] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Morton's neuroma is a common cause of metatarsalgia. This study evaluated the efficacy of ultrasound guided alcohol injection as a treatment for this condition. METHOD Data from 87 treatment courses were included in this study with a mean follow of 14.3 months. RESULTS Technical success was 100%. One patient developed symptoms consistent with an allergic reaction to the injection and one patient declined further injection because of periprocedural pain. Partial or total treatment response was achieved in 66%, with 32% of patients having complete resolution of pain. The median visual analogue score (VAS) decreased from 8 pre-procedure to 4 post-procedure (p < 0.0001). Procedural success was greater in patients under 55 years old and in those with solitary neuromas. Seventeen patients (20%) went on to have surgery due to continuing pain. CONCLUSION Ultrasound guided alcohol ablation for the treatment of Morton's neuroma was a safe procedure that significantly reduced pain and may offer an alternative therapy to surgery.
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Affiliation(s)
- Rachel E Musson
- Nuffield Orthopaedic Centre, Windmill Rd, Headington, Oxford OX3 7HE, United Kingdom.
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31
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Espinosa N, Seybold JD, Jankauskas L, Erschbamer M. Alcohol sclerosing therapy is not an effective treatment for interdigital neuroma. Foot Ankle Int 2011; 32:576-80. [PMID: 21733418 DOI: 10.3113/fai.2011.0576] [Citation(s) in RCA: 24] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023]
Abstract
BACKGROUND Alcohol sclerosing therapy has been reported as a safe and effective means of treating interdigital neuromas, both with or without ultrasound. The use of ultrasound introduces beside the ultrasound device, increased cost, and the need for skilled technicians and may reduce usability, especially in the outpatient clinic. We report a series of patients with interdigital neuroma treated using ethanol sclerosing therapy in a clinic setting without the use of ultrasound. MATERIALS AND METHODS We retrospectively reviewed charts of 32 consecutive patients who were enrolled to receive a series of sclerosing ethanol injections from June 2009 to April 2010 for the treatment of a painful interdigital neuroma. Plain radiographs and MRI scans were obtained if clinically indicated to assistance with the diagnosis. Duration and quality of symptoms were recorded and current pain levels were evaluated on a visual analog pain scale. Previous treatments, including orthotic use, corticosteroid injection, or prior neuroma resection were reported. A solution of 1 ml consisting of 20% ethanol and 0.25% bupivacain solution was injected without the use of ultrasound into the affected webspace. The mixture was provided by the local pharmacy. Technical success was confirmed by the temporary resolution of pain following local anesthetic infiltration. If still symptomatic, an injection was repeated every 2 weeks, with most patients receiving a series of four injections. Pain was evaluated on a visual analog pain scale at each visit. Treatment success was defined as resolution of pain as expressed by the patient. RESULTS Of the 32 patients successful relief of symptoms was only achieved in seven patients, while 25 showed no significant reduction of symptoms and considered or underwent a surgical excision. CONCLUSION Alcohol sclerosing therapy administered in the clinic setting without alcohol is not an effective treatment in the nonoperative management of painful interdigital neuromas and has been abandoned in our clinic.
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Affiliation(s)
- Norman Espinosa
- Department of Orthopedics, Balgrist Hospital, University of Zurich, Zurich, Switzerland.
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32
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Abstract
Interdigital neuralgia affects a significant number of individuals, with an average age of presentation in the sixth decade and a 4- to 15-fold increased prevalence in women. Historical descriptions date back to the 19th century. Nonoperative treatment with shoe modifications, metatarsal pads, and injections provides relief for most, but long term, 60% to 70% of patients eventually elect to have surgery. Although excision can be performed through a dorsal or plantar approach, we prefer the dorsal incision to prevent scar formation on the plantar aspect of the foot. Satisfactory results are common but not certain with reports of excellent or good ranging from 51% to 93%.
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Affiliation(s)
- Paul G Peters
- Department of Orthopaedic Surgery, Foot and Ankle Service, Union Memorial Hospital, Baltimore, MD 21218, USA
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33
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34
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Abstract
Morton neuroma is a common source of forefoot pain. This condition is more correctly termed as interdigital nerve compression and is not a true neuroma. Although Morton neuroma is a common diagnosis, debate exists as to the best surgical and nonsurgical treatments. This article discusses the pathogenesis, diagnosis, nonsurgical and surgical management, and surgical complications of this common disorder.
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Affiliation(s)
- William R Adams
- Wound Care Center, Jackson Purchase Medical Center, Mayfield, KY, USA.
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35
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Abstract
Nerve disorders about the hallux can generate remarkable pain and dysfunction. Whether caused by soft tissue entrapment, trauma, iatrogenic injury, or from an idiopathic basis; nerve disorders are approached by careful history and examination followed by nonoperative treatment. In cases that do not respond, meticulous surgical management can be helpful in many cases.
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Affiliation(s)
- Stuart D Miller
- Department of Orthopaedic Surgery, Union Memorial Hospital, 3333 North Calvert Street, Suite 400, Baltimore, MD 21218, USA.
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36
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Thomas JL, Blitch EL, Chaney DM, Dinucci KA, Eickmeier K, Rubin LG, Stapp MD, Vanore JV. Diagnosis and treatment of forefoot disorders. Section 3. Morton's intermetatarsal neuroma. J Foot Ankle Surg 2009; 48:251-6. [PMID: 19232980 DOI: 10.1053/j.jfas.2008.12.005] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Affiliation(s)
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- University of Florida, Department of Orthopaedics and Rehabilitation, Jacksonville, 32209, USA.
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37
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Abstract
To evaluate the prevalence of neuroma in bilateral upper limb amputees and investigate the effect of level of amputation on their pain, 86 patients with bilateral upper limb amputation were thoroughly examined by an orthopedic surgeon. Of 172 bilateral amputated upper limbs (86 victims of war) 17.1+/-6.1 years after injury, physical examination revealed that 26.2% had moderate to severe stump pain and clinical signs suggestive of neuroma. Statistical analysis showed no relation between level of amputation, prosthesis usage, and occurrence of neuroma. Although high occurrence of neuroma among traumatic bilateral upper limb amputation had no significant effects on wearing prosthesis, its treatment can deeply influence alleviation of their pain and subsequently their quality of life.
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Affiliation(s)
- Mansoor Soroush
- Janbazan Medical and Engineering Research Center, Tehran, Iran
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38
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39
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Practical experience with sonographically guided phenol instillation of stump neuroma: predictors of effects, success, and outcome. AJR Am J Roentgenol 2008; 190:1263-9. [PMID: 18430842 DOI: 10.2214/ajr.07.2050] [Citation(s) in RCA: 40] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022]
Abstract
OBJECTIVE Phantom limb pain and stump pain frequently occur after limb amputation, and stump neuromas play an important role in generation of the pain. The purpose of this study was to evaluate the effects of a previously described optimized procedure for sclerosis of painful stump neuromas under real-time high-resolution sonographic guidance. SUBJECTS AND METHODS In this prospective study, neurosclerosis was performed on 82 patients by means of high-resolution sonographically guided injection of up to 0.8 mL of 80% phenol solution according to a standardized protocol. RESULTS During treatment all patients had marked improvement in terms of reduction of pain measured with a visual analog scale. Twelve (15%) of the subjects were pain free after one to three treatments, nine of the 12 achieving relief with the initial instillation. At 6-month follow-up evaluation, 52 patients assessed their present pain quantity with a simplified three-step score. Twenty (38%) of the 52 patients reported almost unnoticeable pain, and 33 (64%) reported pain equal to the minimum reached during therapy. In 18 (35%) of the 52 patients, the incidence of painful periods had markedly decreased. The neurosclerosis procedure had a low complication rate (5% rate of minor complications, 1.3% rate of major complications). CONCLUSION The high-resolution sonographically guided neurosclerosis procedure had a significantly better outcome than other documented treatments. Sonographically guided neurosclerosis should be included in the management of chronic phantom limb and stump pain.
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40
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41
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42
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Abstract
Plantar interdigital neuroma, also called Morton neuroma, neuralgia, or metatarsalgia, is a perineural fibrosis that induces severe intermittent pain and paresthesia, most frequently between the third and fourth metatarsal heads. This compression syndrome or entrapment neuropathy involves one branch of the common plantar digital nerves. Diagnosis is based essentially on clinical examination. Imaging techniques may be useful in the diagnosis of atypical cases and postoperative recurrences. In most case, conservative treatment (such as orthotic shoes or devices or injections) is successful. When they do not succeed, surgery (neurolysis, neurectomy) may be considered.
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Affiliation(s)
- Patrick Decherchi
- Laboratoire des déterminants physiologiques de l'activité physique (UPRES EA 3285), Université de la Méditerranée (Aix-Marseille II), Institut fédératif de recherche Etienne-Jules Marey, CC910, Marseille.
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43
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Hughes RJ, Ali K, Jones H, Kendall S, Connell DA. Treatment of Morton's neuroma with alcohol injection under sonographic guidance: follow-up of 101 cases. AJR Am J Roentgenol 2007; 188:1535-9. [PMID: 17515373 DOI: 10.2214/ajr.06.1463] [Citation(s) in RCA: 109] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
OBJECTIVE Morton's neuroma is a common cause of forefoot pain. For this study, we assessed the efficacy of a series of sonographically guided alcohol injections into the lesion. SUBJECTS AND METHODS One hundred one consecutive patients with Morton's neuroma were included in this prospective series. An average of 4.1 treatments per person were administered, and follow-up images were obtained at a mean of 21.1 months after the last treatment (range, 13-34 months). RESULTS Technical success was 100%. Partial or total symptom improvement was reported by 94% of the patients, with 84% becoming totally pain-free. The median visual assessed pain score decreased from 8 before treatment to 0 after treatment (p < 0.001). Transitory increased local pain occurred in 17 cases (16.8%). There were no major complications. Thirty patients underwent sonography at 6 months after the last injection and showed a 30% decrease in the size of the neuroma. CONCLUSION We conclude that alcohol injection of Morton's neuroma has a high success rate and is well tolerated. The results are at least comparable to surgery, but alcohol injection is associated with less morbidity and surgical management may be reserved for nonresponders.
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Affiliation(s)
- Richard J Hughes
- Department of Radiology, Royal National Orthopaedic Hospital and Kingston Hospital NHS Trust, Brockley Hill, Stanmore, Middlesex HA7 4LP, United Kingdom
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44
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Abstract
Endoscopic decompression for forefoot nerve entrapments is discussed in this article from not only the perspective of preoperative indications, intraoperative technique, and postoperative management, but with reference to the changing paradigm for management of this condition. Surgical results are discussed and compared with other published reports. Complications of the surgical technique are also discussed, which will give the operating surgeon a frame of reference when comparing decompression procedures to those techniques involving nerve resection. There is also a valuable discussion of current methods of diagnosis that may help the practitioner improve patient outcomes.
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Affiliation(s)
- Stephen L Barrett
- Arizona Podiatric Medicine Program, Midwestern University, College of Health Sciences, 19555 North 59th Avenue, Glendale, 85308, USA.
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45
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Abstract
Intermetatarsal compression neuritis can be a disabling condition. Individuals who don't respond well to initial treatments are left with persistent pain and frustration. The conservative approach to the treatment of neuromas includes shoe modifications, padding, orthotics, cortisone injections, and serial alcohol sclerosing injections. When a person has failed conservative treatment for a forefoot neuroma, surgery can be considered to alleviate pain and treat the condition. This article describes several different surgical approaches such as neurectomy, carbon dioxide laser, and neurolysis. Results to date show that decompression is similar to neurectomy surgery, if not more successful.
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Affiliation(s)
- Justin Franson
- Foot and Ankle Institute, 2121 Wilshire Boulevard, Suite 101, Santa Monica, CA 90403, USA
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46
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Kincaid BR, Barrett SL. Use of high-resolution ultrasound in evaluation of the forefoot to differentiate forefoot nerve entrapments. J Am Podiatr Med Assoc 2006; 95:429-32. [PMID: 16166458 DOI: 10.7547/0950429] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
Forefoot pain can have single or multiple etiologies, and frequently pain is attributed solely to a forefoot nerve entrapment. It is well known that forefoot nerve entrapments, such as Morton's, can be falsely assumed to be the cause of forefoot pain when in fact other factors, such as plantar plate disturbances, are the true cause. Frequently, the cause of the patient's forefoot pain starts as a forefoot nerve entrapment, but then, as a result of treatment with a corticosteroid injection, other pathologies manifest, such as plantar plate rupture. The development of high-resolution, high-frequency ultrasound scanners has opened the door to in-depth examination of peripheral nerves as well as small pericapsular and intracapsular joint structures of the foot and ankle. In the hands of an experienced clinician, ultrasound can play an important role in differentiating nerve lesions and entrapment syndromes from nonneurogenic pain generators, such as tendons, ligaments, fasciae, and joint capsules. The focus of this article is the forefoot, where differentiation of neuroma, neuritis, and capsulitis can be difficult.
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Affiliation(s)
- Brian R Kincaid
- Department of Musculoskeletal Sonography, Golf Diagnostic Imaging Center, Des Plaines, IL, USA
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47
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Hyer CF, Mehl LR, Block AJ, Vancourt RB. Treatment of recalcitrant intermetatarsal neuroma with 4% sclerosing alcohol injection: a pilot study. J Foot Ankle Surg 2005; 44:287-91. [PMID: 16012436 DOI: 10.1053/j.jfas.2005.04.010] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/03/2023]
Abstract
The purpose of this investigation was to conduct a prospective trial to assess the effectiveness of a 4% sclerosing alcohol injection in a small group of patients with intermetatarsal neuromas who had failed previous conservative therapies including corticosteroid injections. Six patients with 8 neuromas were followed for a mean 346 days. A weekly series of 3-9 injections containing 1 mL of the 4% alcohol sclerosing solution were given based on patient response to treatment. Pre- and posttreatment surveys consisting of both objective and subjective findings including a visual analog pain scale were collected. The average pretreatment visual analog pain rating was 7.5 +/- 1.14. The average posttreatment visual analog pain rating was 1.38 +/- 2.39 with an average reduction of 6.13. The average reported improvement in symptoms was 73%. Five of the 6 patients would recommend the treatment to a friend or family member. No complications were encountered. Two neuromas in 2 patients failed the sclerosing injection course: 1 ultimately responded to antiinflammatory use and the other underwent excision.
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48
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Gruber H, Kovacs P, Peer S, Frischhut B, Bodner G. Sonographically Guided Phenol Injection in Painful Stump Neuroma. AJR Am J Roentgenol 2004; 182:952-4. [PMID: 15039170 DOI: 10.2214/ajr.182.4.1820952] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Hannes Gruber
- Department of Radiodiagnostics, University Hospital Innsbruck, Anichstrasse 35, Innsbruck 6020, Austria
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49
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Abstract
BACKGROUND Morton's neuroma is a common, paroxysmal neuralgia affecting the web spaces of the toes, typically the third. The pain is often so debilitating that patients become anxious about walking or even putting their foot to the ground. Insoles, corticosteroid injections, excision of the nerve, transposition of the nerve and neurolysis of the nerve are commonly used treatments. Their effectiveness is poorly understood. OBJECTIVES To examine the evidence from randomised controlled trials concerning the effectiveness of interventions in adults with Morton's neuroma. SEARCH STRATEGY We searched the Cochrane Neuromuscular Disease Group trials register (searched January 2003), MEDLINE (January 1966 to January Week 2 2003), EMBASE (January 1980 to February Week 2 2003), and CINAHL (January 1982 to February Week 1 2003). SELECTION CRITERIA Randomised or quasi-randomised (methods of allocating participants to an intervention which were not strictly random e.g. date of birth, hospital record, number alternation) controlled trials of interventions for Morton's neuroma were selected. Studies where participants were not randomised into intervention groups were excluded. DATA COLLECTION AND ANALYSIS Two reviewers selected trials for inclusion in the review, assessed their methodological quality and extracted data independently. MAIN RESULTS Three trials involving 121 people were included. There is, at most, a very limited indication that transposition of the transected plantar digital nerve may yield better results than standard resection of the nerve in the long term. There is no evidence to support the use of supinatory insoles. There are, at best, very limited indications to suggest that dorsal incisions for resection of the plantar digital nerve may result in less symptomatic post-operative scars when compared to plantar excision of the nerve. REVIEWERS' CONCLUSIONS There is insufficient evidence with which to assess the effectiveness of surgical and non-surgical interventions for Morton's neuroma. Well designed trials are needed to begin to establish an evidence base for the treatment of Morton's neuroma pain.
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Affiliation(s)
- Colin E Thomson
- Queen Margaret UniversitySchool of Health SciencesEdinburghEast LothianUKEH21 6UU
| | - JN Alastair Gibson
- The Royal Infirmary of EdinburghOrthopaedic SurgeryLittle France, EdinburghUKEH16 4SU
| | - Denis Martin
- Teesside UniversityInstitute of Health and Social CareParksideMiddlesbroughUKTS1 3BA
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50
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Ernberg LA, Adler RS, Lane J. Ultrasound in the detection and treatment of a painful stump neuroma. Skeletal Radiol 2003; 32:306-9. [PMID: 12719933 DOI: 10.1007/s00256-002-0606-9] [Citation(s) in RCA: 52] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2002] [Revised: 11/07/2002] [Accepted: 11/08/2002] [Indexed: 02/02/2023]
Abstract
Ultrasound is an established modality for the evaluation of neuromas, particularly Morton's neuromas. It has also had success in the assessment of amputation stump neuromas. While ultrasound localization for steroid injection has proven useful in the conservative treatment of Morton's neuromas, it has not yet been established as a localization technique for steroid injection to successfully treat amputation stump neuromas.
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Affiliation(s)
- L A Ernberg
- Department of Radiology and Imaging, Hospital for Special Surgery, 535 East 70th Street, New York, NY 10021, USA
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