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Lee W, McDonald J, Azam M, Lachance AD. The comparison of postoperative outcomes in Morton's neuroma excision between plantar versus dorsal approach: A systematic review and meta-analysis. Foot Ankle Surg 2024:S1268-7731(24)00122-X. [PMID: 38880729 DOI: 10.1016/j.fas.2024.05.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/15/2024] [Revised: 04/27/2024] [Accepted: 05/29/2024] [Indexed: 06/18/2024]
Abstract
BACKGROUND Current literature lacks comprehensive information comparing the clinical outcomes of plantar and dorsal approaches for Civinini-Morton syndrome, also known as Morton's neuroma. This systematic review and meta-analysis was conducted to evaluate and compare the clinical outcomes of neurectomy for Morton's neuroma, focusing on the differences between the plantar and dorsal approach. METHODS Our comprehensive literature review adhered to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and utilized databases including PubMed, Embase, Web of Science, and the Cochrane Library. Data investigated in this study included postoperative sensory loss, scar tenderness, reoperation, histopathology, complications, pain score, patient satisfaction, functional scores, and time to weight bearing. RESULTS Total eight studies were included in this study. In aggregate, 237 neuromas underwent excision using the plantar approach, while 312 neuromas were treated via the dorsal approach. A significantly higher rate of postoperative reduced sensory was found in the dorsal group: 48.5 % (64/132) Vs. 62.0 % (80/129) with the relative ratio (RR) of 0.79 (95 % CI, 0.64-0.97). A significantly higher rate of postoperative scar tenderness was noted in the plantar group: 16.7 % (32/192) Vs. 6.2 % (14/225) with the RR of 2.27 (95 % CI, 1.28-4.04). Regarding the histopathology, 99.3 % (143/144) and 97.1 % (134/138) accuracy rate was confirmed in the plantar approach and dorsal approach, respectively, with the RR of 1.02 (95 % CI, 0.98-1.07). Overall reoperations and complications were not different between groups at 5.3 % (10/189) and 8.8 % (19/216) in the plantar group versus 6.1 % and 12.0 % (35/291) in dorsal group. CONCLUSIONS We recommend detailed discussions with patients prior to surgery to weigh the advantages and disadvantages of each approach.
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Affiliation(s)
- Wonyong Lee
- Department of Orthopaedic Surgery, Guthrie Clinic, 1 Guthrie Sq, Sayre 18840, PA, USA.
| | - John McDonald
- Geisinger Commonwealth School of Medicine, 525 Pine St, Scranton 18510, PA, USA.
| | - Mohammad Azam
- Department of Orthopaedic Surgery, Guthrie Clinic, 1 Guthrie Sq, Sayre 18840, PA, USA.
| | - Andrew D Lachance
- Department of Orthopaedic Surgery, Guthrie Clinic, 1 Guthrie Sq, Sayre 18840, PA, USA.
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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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Choi JY, Lee HI, Hong WH, Suh JS, Hur JW. Corticosteroid Injection for Morton's Interdigital Neuroma: A Systematic Review. Clin Orthop Surg 2021; 13:266-277. [PMID: 34094019 PMCID: PMC8173242 DOI: 10.4055/cios20256] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 12/02/2020] [Accepted: 12/02/2020] [Indexed: 01/08/2023] Open
Abstract
Backgroud This review aimed to evaluate the effects of corticosteroid injections on Morton's neuroma using an algorithmic approach to assess the methodological quality of reported studies using a structured critical framework. Methods Several electronic databases were searched for articles published until April 2020 that evaluated the outcomes of corticosteroid injections in patients diagnosed with Morton's neuroma. Data search, extraction, analysis, and quality assessments were performed according to the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA). guidelines, and clinical outcomes were evaluated using various outcome measures. Results With 3–12 months of follow-up, corticosteroid injections provided satisfactory outcomes according to Johnson satisfaction scores except in two studies. Visual analog scale scores showed maximal pain reduction between 1 week and 3 months after injection. We found that 140 subjects out of 469 (29.85%) eventually underwent surgery after receiving corticosteroid injections due to persistent pain. Conclusions Corticosteroid injections showed a satisfactory clinical outcome in patients with Morton's interdigital neuroma although almost 30% of the included subjects eventually underwent operative treatment. Our recommendation for future research includes using more objective outcome parameters, such as foot and ankle outcome scores or foot and ankle ability measures. Moreover, studies on the safety and effectiveness of multiple injections at the same site are highly necessary.
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Affiliation(s)
- Jun Young Choi
- Department of Orthopedic Surgery, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Hyun Il Lee
- Department of Orthopedic Surgery, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Woi Hyun Hong
- Medical Research Information Center, College of Medicine, Chungbuk National University, Cheongju, Korea
| | - Jin Soo Suh
- Department of Orthopedic Surgery, Inje University Ilsan Paik Hospital, Goyang, Korea
| | - Jae Won Hur
- Department of Orthopedic Surgery, Inje University Ilsan Paik Hospital, Goyang, Korea
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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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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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7
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Mischitz M, Zeitlinger S, Mischlinger J, Rab M. Nerve decompression according to A.L. Dellon in Morton's neuroma - A retrospective analysis. J Plast Reconstr Aesthet Surg 2020; 73:1099-1104. [PMID: 32171681 DOI: 10.1016/j.bjps.2020.01.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2019] [Revised: 12/19/2019] [Accepted: 01/05/2020] [Indexed: 10/25/2022]
Abstract
BACKGROUND First reported by Dellon et al. in 1992, nerve decompression by dissecting the deep transversal intermetatarsal ligament through a dorsal incision appears to be a reliable method for treating Morton's neuroma by addressing its underlying pathomechanism, since it should rather be considered as Morton's entrapment. As there are no current studies dealing with Dellon's surgical technique, we carried out a retrospective analysis with the aim of showing that nerve decompression is an effective method to treat Morton's neuroma, and one that considers its true pathology. MATERIALS AND METHODS All patients with a clinical diagnosis of Morton's neuroma, verified by MRI and treated by nerve decompression were included in this study in the years from 2010 to 2018 at our department. Follow-up was performed at least six months post-intervention; pain and function history were ascertained using the VAS (visual analogue scale) score and the German foot function index. Skin sensitivity testing was performed using Semmes-Weinstein monofilaments. RESULTS A total of 12 patients were treated and followed-up during the study period. Postoperatively, there was significant improvement in the values of the VAS score both under strain (p-value: 0.0021) and at rest (p-value: 0.0062), as well as in the foot function index (p-value: 0.0022). There was no significant difference in skin sensitivity of the innervation areas of the interdigital nerves of the affected foot compared with the healthy reference foot (p-value: 0.0968). CONCLUSION Dellon's decompression method yielded a highly positive outcome, and based on our findings, we consider it a reliable, technically simple and promising approach to treat Morton's neuroma. It is a minimally invasive technique that addresses the pathomechanism of peripheral nerve entrapment and has a low rate of complication as well as rapid patient recovery.
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Affiliation(s)
- Madeleine Mischitz
- Department of Plastic, Aesthetic and Reconstructive Surgery, Klinikum Klagenfurt am Wörthersee, Klagenfurt, Austria
| | - Stefan Zeitlinger
- Department of Plastic, Aesthetic and Reconstructive Surgery, Klinikum Klagenfurt am Wörthersee, Klagenfurt, Austria
| | - Johannes Mischlinger
- Department of Tropical Medicine, Bernhard Nocht Institute for Tropical Medicine & I, Department of Medicine, University Medical Center Hamburg-Eppendorf, Hamburg, Germany
| | - Matthias Rab
- Department of Plastic, Aesthetic and Reconstructive Surgery, Klinikum Klagenfurt am Wörthersee, Klagenfurt, Austria.
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8
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Dang DY, Coughlin MJ. Mallet Toes, Hammertoes, Neuromas, and Metatarsophalangeal Joint Instability: 40 Years of Development in Forefoot Surgery. Indian J Orthop 2020; 54:3-13. [PMID: 32211125 PMCID: PMC7065734 DOI: 10.1007/s43465-019-00015-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/20/2019] [Accepted: 08/27/2019] [Indexed: 02/04/2023]
Abstract
BACKGROUND Today's foot and ankle surgeon has an enhanced understanding of forefoot pathology and treatment options compared to surgeons who practiced in previous decades. This paper summarizes developments in forefoot surgery in the past 40 years, specifically in treatments for mallet toe, hammertoe, neuroma, and metatarsophalangeal joint instability. MATERIALS AND METHODS A review of the literature was conducted using the PubMed search engine, with key terms including, "mallet toe," "hammertoe," "neuroma," "metatarsophalangeal joint instability," "plantar plate," and "forefoot surgery." Chapters in major orthopaedic textbooks covering these topics were also reviewed. We then chronicled the history of the diagnosis and treatment of these pathologies, with a focus on the past 40 years. CONCLUSIONS There have been major advances in understanding and treating forefoot pathologies in the past four decades; however, there remain areas for improvement both in the diagnosis and treatment of these problems. LEVEL OF EVIDENCE Level V, meta-synthesis.
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Affiliation(s)
- Debbie Y. Dang
- Saint Alphonsus Medical Group, Department of Orthopaedic Surgery, Coughlin Foot and Ankle Clinic, 1075 North Curtis Road, Suite 300, Boise, ID 83706 USA
| | - Michael J. Coughlin
- Saint Alphonsus Medical Group, Department of Orthopaedic Surgery, Coughlin Foot and Ankle Clinic, 1075 North Curtis Road, Suite 300, Boise, ID 83706 USA
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Abstract
Metatarsalgia is a common foot disease with a multitude of causes. Proper identification of underlying diseases is mandatory to formulate an adequate treatment. Multiple surgical solutions are available to treat metatarsalgia. Only limited scientific evidence is available in the literature. However, most of the techniques used in the treatment of metatarsalgia seem to be reasonable with acceptable results.
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Affiliation(s)
- Georg Klammer
- Institute for Foot and Ankle Reconstruction, Kappelistrasse 7, 8002 Zurich, Switzerland
| | - Norman Espinosa
- Institute for Foot and Ankle Reconstruction, FussInsitut Zurich, Kappelistrasse 7, Zurich 8002, Switzerland.
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Ultrasound-guided radiofrequency ablation for treatment of Morton's neuroma: initial experience. Clin Radiol 2019; 74:815.e9-815.e13. [PMID: 31409448 DOI: 10.1016/j.crad.2019.07.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2019] [Accepted: 07/04/2019] [Indexed: 11/23/2022]
Abstract
AIM To assess the efficacy and safety of ultrasound-guided radiofrequency ablation (RFA) for treatment of symptomatic Morton's neuroma. MATERIALS AND METHODS Patients with symptomatic Morton's neuroma of the foot were referred for treatment with RFA, prior to consideration for surgery. All neuromas were proven by ultrasound imaging and had a trial of conservative management including orthotic support and/or steroid injections. Ultrasound-guided RFA was performed as an outpatient procedure under local anaesthetic. Patients were followed up at 8 weeks and 8 months. Outcomes were assessed with a visual analogue scale (VAS) score, Manchester-Oxford Foot and Ankle Questionnaire, overall patient satisfaction, and complications. RESULTS Twenty-two neuromas were treated with RFA under ultrasound guidance. The VAS score at 8 weeks was significantly lower than the VAS score pre-procedure (p<0.001, Wilcoxon signed ranks test) and the VAS score at 8 months was significantly lower than the VAS score at 8 weeks (p=0.008, Wilcoxon signed ranks test). At 8 months, 89% of treated patients were satisfied with the procedure outcome. No significant adverse effects were recorded. CONCLUSION Ultrasound-guided RFA is safe, with excellent initial results in treatment of symptomatic Morton's neuroma. Further studies on long-term outcomes and comparison to other management options will be required to establish its role in management of symptomatic Morton's neuroma.
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11
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Lorenzon P, Rettore C. Mechanical Metatarsalgia as a Risk Factor for Relapse of Morton's Neuroma After Ultrasound-Guided Alcohol Injection. J Foot Ankle Surg 2019; 57:870-875. [PMID: 29779991 DOI: 10.1053/j.jfas.2018.03.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/06/2017] [Indexed: 02/03/2023]
Abstract
Although many treatment modalities are available for Morton's neuroma, the injection of the neuroma with alcohol has gained popularity. However, recently, some investigators have observed a progressive deterioration in pain scores for patients initially pain free after the treatment. The purpose of the present retrospective comparative study was to determine whether mechanical metatarsalgia is related to symptom recurrence. We included 104 consecutive cases of ultrasound-guided alcohol injection for Morton's neuroma in 92 patients. Of these 104 cases, 51 were in group A (49%; Morton's neuroma) and 53 in group B (51%; Morton's neuroma associated with mechanical metatarsalgia). We evaluated each patient using a visual analog scale and American Orthopaedic Foot and Ankle Society forefoot scale, and Johnson satisfaction scale, with a mean follow-up period of 24 (range 12 to 39) months. Concomitant functional and mechanical disorders have been identified and treated with orthopedic inserts. The present study compared the clinical results and recurrence of symptoms in patients with isolated Morton's disease or Morton's disease associated with mechanical metatarsalgia. Of the 104 cases, the patients for 93 cases (89%) were completely satisfied or satisfied with minor reservations. No major complications developed. Symptoms recurred in 6 patients (6%), in whom neuroma was associated with mechanical disorders (p = .0269). Ultrasound-guided alcohol injection of Morton's neuroma is a relatively safe and well-tolerated treatment. Symptom recurrence is often associated with mechanical metatarsalgia. The treatment of the concomitant anatomical and functional disorders that target the genesis of the neuroma has an important role in the prevention of recurrence of this pathology.
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Affiliation(s)
- Paolo Lorenzon
- Orthopedist, Unità Operativa di Ortopedia e Traumatologia, Ospedale Civile di Montecchio Maggiore (Vicenza), Montecchio Maggiore, Vicenza, Italy.
| | - Carlo Rettore
- Radiologist, Unità Operativa di Radiologia, Ospedale Civile di Cittadella (Padova), Cittadella, Padova, Italy
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12
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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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13
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Bucknall V, Rutherford D, MacDonald D, Shalaby H, McKinley J, Breusch SJ. Outcomes following excision of Morton's interdigital neuroma: a prospective study. Bone Joint J 2017; 98-B:1376-1381. [PMID: 27694592 DOI: 10.1302/0301-620x.98b10.37610] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Accepted: 05/04/2016] [Indexed: 11/05/2022]
Abstract
AIMS This is the first prospective study to report the pre- and post-operative patient reported outcomes and satisfaction scores following excision of interdigital Morton's neuroma. PATIENTS AND METHODS Between May 2006 and April 2013, we prospectively studied 99 consecutive patients (111 feet) who were to undergo excision of a Morton's neuroma. There were 78 women and 21 men with a mean age at the time of surgery of 56 years (22 to 78). Patients completed the Manchester-Oxford Foot Questionnaire (MOXFQ), Short Form-12 (SF-12) and a supplementary patient satisfaction survey three months pre-operatively and six months post-operatively. RESULTS Statistically significant differences were found between the mean pre- and post-operative MOXFQ and the physical component of the SF-12 scores (p = 0.00081 and p = 0.00092 respectively). Most patients reported their overall satisfaction as excellent (n = 49, 49.5%) or good (n = 29, 29.3%), but ten patients were dissatisfied, reporting poor (n = 8, 8.1%) or very poor (n = 2, 2.0%) results. Only 63 patients (63%) were pain-free at follow-up: in eight patients (8.1%), the MOXFQ score worsened. There was no statistically significant difference in outcome between surgery on single or multiple sites. However, the MOXFQ scores were significantly worse after revision surgery (p = 0.004). CONCLUSIONS The patient-reported outcomes after resection of a symptomatic Morton's neuroma are acceptable but may not be as good as earlier studies suggest. Surgery at several sites can be undertaken safely but caution should be exercised when considering revision surgery. Cite this article: Bone Joint J 2016;98-B:1376-81.
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Affiliation(s)
- V Bucknall
- Royal Infirmary of Edinburgh, Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
| | - D Rutherford
- Royal Infirmary of Edinburgh, Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
| | - D MacDonald
- Royal Infirmary of Edinburgh, Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
| | - H Shalaby
- Royal Infirmary of Edinburgh, Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
| | - J McKinley
- Royal Infirmary of Edinburgh, Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
| | - S J Breusch
- Royal Infirmary of Edinburgh, Little France Crescent, Old Dalkeith Road, Edinburgh EH16 4SA, UK
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14
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Abstract
Foot and ankle injuries account for nearly one-third of running injuries. Achilles tendinopathy, plantar fasciopathy, and ankle sprains are 3 of the most common types of injuries sustained during training. Other common injuries include other tendinopathies of the foot and ankle, bone stress injuries, nerve conditions including neuromas, and joint disease including osteoarthritis. This review provides an evidence-based framework for the evaluation and optimal management of these conditions to ensure safe return to running participation and reduce risk for future injury.
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Affiliation(s)
- Adam S Tenforde
- Department of Physical Medicine and Rehabilitation, Spaulding Rehabilitation Hospital, Harvard University, 1575 Cambridge Street, Cambridge, MA 02138, USA
| | - Amy Yin
- Division of Physical Medicine and Rehabilitation, Department of Orthopaedic Surgery, Stanford University, 450 Broadway Street, Redwood City, CA 94063, USA
| | - Kenneth J Hunt
- Department of Orthopaedic Surgery, Stanford University, Stanford, CA 94063, USA.
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15
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Abstract
Posterior tarsal tunnel syndrome is the result of compression of the posterior tibial nerve. Anterior tarsal tunnel syndrome (entrapment of the deep peroneal nerve) typically presents with pain radiating to the first dorsal web space. Distal tarsal tunnel syndrome results from entrapment of the first branch of the lateral plantar nerve and is often misdiagnosed initially as plantar fasciitis. Medial plantar nerve compression is seen most often in running athletes, typically with pain radiating to the medial arch. Morton neuroma is often seen in athletes who place their metatarsal arches repetitively in excessive hyperextension.
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Affiliation(s)
- Eric Ferkel
- Southern California Orthopaedic Institute, 6815 Noble Avenue, Van Nuys, CA 91405, USA.
| | - William Hodges Davis
- OrthoCarolina Foot and Ankle Institute, 2001 Vail Avenue, #200B, Charlotte, NC 28207, USA
| | - John Kent Ellington
- OrthoCarolina Foot and Ankle Institute, 2001 Vail Avenue, #200B, Charlotte, NC 28207, USA
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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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Kundert HP, Plaass C, Stukenborg-Colsman C, Waizy H. Excision of Morton's Neuroma Using a Longitudinal Plantar Approach: A Midterm Follow-up Study. Foot Ankle Spec 2016; 9:37-42. [PMID: 26253529 DOI: 10.1177/1938640015599032] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
BACKGROUND Operative procedures are indicated in the treatment of Morton's neuroma (MN) when conservative therapies have been unsuccessful. A dorsal approach for neurolysis or neurectomy was strongly recommended. The aim of this case series study was to prospectively analyze the midterm clinical outcome and complications following the excision of a MN using a plantar longitudinal approach. METHODS Between September 2000 and January 2009, we included 44 patients (51 feet, 56 neuromas) in a prospective study treated by excision of a primary MN using a plantar longitudinal approach. The MN diagnosis was based on clinical symptoms, magnetic resonance imaging findings, and pain relief after infiltration of local anesthetics. Histological examinations were performed in all resected specimens. The patients returned for final follow-up at a mean of 54 (range = 12 to 99) months, comparing preoperative and postoperative perception of pain on a Visual Analogue Scale (VAS) and assessing clinical findings. RESULTS The average amount of pain, according to VAS, was 8 (range = 6-9) points preoperatively and 0.4 (range = 0-5) points at final follow-up. Complications occurred in 7.1% of interventions and scar problems in 5.2%, including delayed wound healing, hypertrophic scar formation, and inclusion cyst. CONCLUSION The present study shows a strong relief of pain after MN resection using a plantar longitudinal incision, coupled with a low rate of local complications. This surgical procedure seems to be a reliable choice for the excision of MN, even in cases with MN in adjacent webspaces, because it is technically simple and the plantar scar is not bothersome if properly located. LEVELS OF EVIDENCE Therapeutic, Level IV: Prospective, Case series.
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Affiliation(s)
- Hans-Peter Kundert
- Foot and Ankle Center, Hirslanden Clinic Zurich, Switzerland (H-PK)Department for Foot and Ankle Surgery, Orthopedic Clinic, Hannover Medical School, Hannover, Germany (CP, CSC)Clinic for Foot and Ankle Surgery, Hessing Foundation, Augsburg, Germany (HW)
| | - Christian Plaass
- Foot and Ankle Center, Hirslanden Clinic Zurich, Switzerland (H-PK)Department for Foot and Ankle Surgery, Orthopedic Clinic, Hannover Medical School, Hannover, Germany (CP, CSC)Clinic for Foot and Ankle Surgery, Hessing Foundation, Augsburg, Germany (HW)
| | - Christina Stukenborg-Colsman
- Foot and Ankle Center, Hirslanden Clinic Zurich, Switzerland (H-PK)Department for Foot and Ankle Surgery, Orthopedic Clinic, Hannover Medical School, Hannover, Germany (CP, CSC)Clinic for Foot and Ankle Surgery, Hessing Foundation, Augsburg, Germany (HW)
| | - Hazibullah Waizy
- Foot and Ankle Center, Hirslanden Clinic Zurich, Switzerland (H-PK)Department for Foot and Ankle Surgery, Orthopedic Clinic, Hannover Medical School, Hannover, Germany (CP, CSC)Clinic for Foot and Ankle Surgery, Hessing Foundation, Augsburg, Germany (HW)
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18
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Abstract
Occurrences of entrapment neuropathies of the lower extremity are relatively infrequent; therefore, these conditions may be underappreciated and difficult to diagnose. Understanding the anatomy of the peripheral nerves and their potential entrapment sites is essential. A detailed physical examination and judicious use of imaging modalities are also vital when establishing a diagnosis. Once an accurate diagnosis is obtained, treatment is aimed at reducing external pressure, minimizing inflammation, correcting any causative foot and ankle deformities, and ultimately releasing any constrictive tissues.
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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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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
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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Surgical treatment of Morton's neuroma: clinical results after open excision. INTERNATIONAL ORTHOPAEDICS 2013; 37:1857-61. [PMID: 23851648 DOI: 10.1007/s00264-013-2002-6] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2013] [Accepted: 06/22/2013] [Indexed: 02/07/2023]
Abstract
PURPOSE Long-term results following surgical treatment of Morton neuroma are rare. The purpose of the present study was to evaluate patients after excision of Morton's neuroma at least ten years following surgery. METHODS We performed a retrospective review of the patients' records who underwent excision of an interdigital neuroma with the clinical diagnosis of Morton's neuroma. Eighty-one patients who had undergone surgery on 98 feet were analysed at an average of 15.3 years postoperatively. In total 111 neuromas were excised, because in 13 feet more than one neuroma was identified clinically. Follow-up evaluation included physical examination and a radiographic evaluation. The interdigital neuroma clinical evaluation score and the AOFAS score were assessed. RESULTS An excellent result was reported for 44 feet (44.9 %), a good result for 31 feet (31.6 %) and a fair one for 15 feet (15,3 %). Eight feet had a poor result (8.2 %), in all of them an amputation neuroma was diagnosed. The average neuroma score was 62 points (range 20-80) and the AOFAS score 75 points (range 29-100). Sixty-one feet (62.2 %) had concomitant foot and ankle disorders not related to the primary diagnosis of Morton's neuroma. Numbness was assessed in 72 % (72 feet), a normal sensibility in 26 % (26 feet) and dyaesthesia in 1 % (one foot). The clinical outcome was not influenced by existence of sensory deficits (p = 0.646); analysis of location of neuroma showed best results for those in the third webspace. A significantly worse outcome was found in patients operated on multiple neuromas compared to single neuroma (p = 0.038). CONCLUSION Surgical excision of a Morton's neuroma results in good clinical results and high overall patient's satisfaction in the long term. Multiple neuromas have worse outcome than single neuromas. Sensory deficits and concomitant foot and ankles disorders are common, but do not have an influence on patient's satisfaction.
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Taneerananon T, Hussain MA, Jhattu H, Li J, Klaassen M, Milovic V. Use of poly dl-lactide-ε-caprolactone (Neurolac) conduit for enveloping traumatic neuromas. EUROPEAN JOURNAL OF PLASTIC SURGERY 2013. [DOI: 10.1007/s00238-013-0807-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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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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