Imaging of Damaged Nerves

Purger, David; Sakamuri, Sarada; Hug, Nicholas F; Biswal, Sandip; Wilson, Thomas J.

doi:10.1016/j.cps.2019.12.003

Cited by 7 publications

(4 citation statements)

References 87 publications

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“…Either magnetic resonance or ultrasound imaging has become standard tools used in the workup of traumatic nerve injuries, as they provide valuable information regarding gross nerve morphology and architecture to help differentiate partial and complete injuries. Magnetic resonance neurography (MRN) protocols are gaining ground as a powerful mode of nerve imaging, achieving finer resolution at the fascicular level [13,14] . However, sensitivity for MRN in detected closed nerve injuries is only 40%-70%, meaning that workup should not be precluded by a normal or negative MRN study [15,16] .…”

Section: Diagnosis and Evaluationmentioning

confidence: 99%

Functional reconstruction of lower extremity nerve injuries

Qiu¹,

Hanwright²,

Khavanin³

et al. 2022

Plast Aesthet Res

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Peripheral nerve injuries (PNI) in the lower extremity are an uncommon but highly morbid condition. Recent advances in our understanding of nerve physiology and microsurgical techniques have inspired renewed faith in nerve surgery and sparked a creative renaissance in the tools, approaches, and reconstructive schemas available to surgeons in the management of lower extremity PNIs. In this article, we review the literature and provide a principles-based approach for the surgical management of lower extremity PNIs with an emphasis on techniques for functional reconstruction after complete nerve injury. General principles in management include early diagnosis with electrodiagnostics and imaging, early surgical exploration, and opting for nerve and tendon transfers when primary reconstruction of the injured nerve is unfavorable (e.g., delayed reconstruction, unavailability of proximal or distal nerve stumps, or long regenerative distance). The goal of functional reconstruction should be to restore independent gait, so understanding the roles of major neuromuscular units during the gait cycle informs the selection of donor nerves and tendons for transfer. Based on these principles and literature to date, specific algorithms for surgical management are presented for femoral, sciatic, tibial, and common peroneal nerves. We recognize limitations of the current literature, namely the predominance of case series evidence, and call for the accrual of more patient data in surgical management of PNIs.

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Section: Diagnosis and Evaluationmentioning

confidence: 99%

Functional reconstruction of lower extremity nerve injuries

Qiu¹,

Hanwright²,

Khavanin³

et al. 2022

Plast Aesthet Res

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“…Magnetic resonance neurography (MRN) [ 1 , 2 ], the MR imaging of peripheral nerves, is gaining increasing attention for assessing and monitoring peripheral neuropathies. Several clinical studies have highlighted the potential of MRN, and MRN is now clinically used as a complementary diagnostic tool for gold standard neurological examination and electrodiagnostic studies [ 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ]. In clinical practice, MRN is often employed qualitatively, i.e., weighted MR imaging relying on the subjective evaluation by neuroradiologists.…”

Section: Introductionmentioning

confidence: 99%

“…Quantitative MRN is nowadays actively being investigated for the extraction of MR biomarkers of peripheral neuropathies. Several non-systematic reviews [ 3 , 4 , 5 , 6 , 7 , 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 ] summarized the potential of MRN in general and coverd advances in quantitative MRN to some extent. Particularly, Chen et al [ 12 ] provided a summary of the possible biomarkers ranging from pure MR parameters like T2 relaxation, diffusion tensor parameters, and magnetization transfer to indirect MR parameters like cross-sectional area extracted from weighted imaging.…”

Section: Introductionmentioning

confidence: 99%

Methodologies and MR Parameters in Quantitative Magnetic Resonance Neurography: A Scoping Review Protocol

Balsiger

Wagner

Jende

et al. 2022

MPs

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Magnetic resonance neurography (MRN), the MR imaging of peripheral nerves, is clinically used for assessing and monitoring peripheral neuropathies based on qualitative, weighted MR imaging. Recently, quantitative MRN has been increasingly reported with various MR parameters as potential biomarkers. An evidence synthesis mapping the available methodologies and normative values of quantitative MRN of human peripheral nerves, independent of the anatomical location and type of neuropathy, is currently unavailable and would likely benefit this young field of research. Therefore, the proposed scoping review will include peer-reviewed literature describing methodologies and normative values of quantitative MRN of human peripheral nerves. The literature search will include the databases MEDLINE (PubMed), EMBASE (Ovid), Web of Science, and Scopus. At least two independent reviewers will screen the titles and abstracts against the inclusion criteria. Potential studies will then be screened in full against the inclusion criteria by two or more independent reviewers. From all eligible studies, data will be extracted by two or more independent reviewers and presented in a diagrammatic or tabular form, separated by MR parameter and accompanied by a narrative summary. The reporting will follow the guidelines of the Preferred Reporting Items for Systematic reviews and Meta-Analyses extension for Scoping Reviews (PRISMA-ScR). Upon completion, the scoping review will provide a map of the available literature, identify possible gaps, and inform on possible future research. SCOPING REVIEW REGISTRATION: Open Science Framework 9P3ZM.

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“…Improvements in diagnostic imaging for nerve injuries and changes in causative factors, such as increasing gun violence, may have influenced current patterns of nerve injuries and diagnoses. 11,12 There has been a paradigm shift in the surgical management of nerve injuries from nerve grafts to nerve transfers, which may have affected current practices in the evaluation and management of patients with nerve injuries. 13 An understanding of PNI and BPI patterns is essential to preventing and appropriately managing nerve injuries.…”

mentioning

confidence: 99%

Epidemiology of peripheral nerve and brachial plexus injuries in a trauma population

Zaidman,

Novak,

Midha

et al. 2024

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Imaging of Damaged Nerves

Cited by 7 publications

References 87 publications

Functional reconstruction of lower extremity nerve injuries

Functional reconstruction of lower extremity nerve injuries

Methodologies and MR Parameters in Quantitative Magnetic Resonance Neurography: A Scoping Review Protocol

Epidemiology of peripheral nerve and brachial plexus injuries in a trauma population

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