Twenty-three patients (14 men, 9 women) with 24 painful neuromas underwent resection of neuroma and transposition of the nerve stump into an adjacent vein. The neuromas resulted from amputations (N = 7), tumor excision (N = 5), laceration injuries (N = 4), different types of wrist surgery (N = 3), vein-stripping procedures (N = 2), open fracture of the radius (N = 1), and toe harvest for thumb reconstruction (N = 1). The duration of painful symptoms averaged 66.7 weeks at the time of operation. Average follow-up was 26.5 months. In 22 patients the symptoms improved permanently. Twelve patients experienced complete and permanent relief of pain; some mild degree of pain returned in 8 patients. Two patients experienced moderate pain, and pain recurred unchanged 2 months postoperatively in 1 patient. The results presented are consistent with results of animal experiments demonstrating that typical neuroma does not develop in nerve stumps transposed into veins. Further clinical use of this approach is encouraged.
Download full-text PDF |
Source |
---|---|
http://dx.doi.org/10.1097/01.SAP.0000054187.72439.57 | DOI Listing |
J Am Acad Orthop Surg
November 2024
From the Department of Hand and Reconstructive Microsurgery, National University Health System, Singapore (Lee), the Department of Orthopedic Surgery (Sammarco), the Department of Neurosurgery (Spinner), Mayo Clinic, Rochester, MN, and the Division of Hand and Microvascular Surgery, Department of Orthopedic Surgery, Mayo Clinic, Rochester, MN (Shin).
Painful neuromas are a complex clinical condition that results in notable disability and functional impairment after injury to a peripheral nerve. When regenerating axons lack a distal target, they form a stump neuroma. Up to 60% of neuromas are painful because of mechanical sensitivity and crosstalk between nerve fibers.
View Article and Find Full Text PDFPharmaceutics
December 2024
Scientific and Educational Center of Pharmaceutics, Kazan (Volga Region) Federal University, 18 Kremlyovskaya St., 420008 Kazan, Russia.
The combination of macroporous cryogels with synthetic peptide factors represents a promising but poorly explored strategy for the development of extracellular matrix (ECM)-mimicking scaffolds for peripheral nerve (PN) repair. In this study, IKVAV peptide was functionalized with terminal lysine residues to allow its in situ cross-linking with gelatin macromer, resulting in the formation of IKVAV-containing proteinaceous cryogels. The controllable inclusion and distribution of the peptide molecules within the scaffold was verified using a fluorescently labelled peptide counterpart.
View Article and Find Full Text PDFJ Reconstr Microsurg
December 2024
Division of Reconstructive Microsurgery Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Taoyuan, Taiwan.
Background: High-level median or ulnar nerve injuries and repairs typically result in suboptimal re-innervation of distal muscles. Functioning Free Muscle Transplantation (FFMT) is increasingly recognized as an effective method to restore function in chronic muscle denervation cases. This study investigates the efficacy of using an additional FFMT, neurotized by lateral sprouting axons from a repaired high-level mixed nerve in the upper limb, to enhance distal hand function.
View Article and Find Full Text PDFNat Commun
January 2025
State Key Laboratory of New Ceramics and Fine Processing, School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China.
Chronic allodynia stemming from peripheral stump neuromas can persist for extended periods, significantly compromising patients' quality of life. Conventional managements for nerve stumps have demonstrated limited effectiveness in ensuring their orderly termination. In this study, we present a spatially confined conduit strategy, designed to enhance the self-organization of regenerating nerves after truncation.
View Article and Find Full Text PDFPLoS One
December 2024
Faculty of Medicine Universitas Indonesia, Department of Orthopaedics & Traumatology, Dr Cipto Mangunkusumo National Central Hospital, Jakarta, Indonesia.
Background And Purpose: Current treatments for peripheral nerve defects are suboptimal. Mesenchymal stem cell (MSC) implantation holds promise, with studies indicating their efficacy through the secretome. This study aims to assess the secretome's potency in regenerating peripheral nerve defects.
View Article and Find Full Text PDFEnter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!