Research Topics
Species | Martijn J A MalessySummaryAffiliation: Leiden University Medical Center Country: The Netherlands Publications
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Detail Information
Publications
Functional magnetic resonance imaging and control over the biceps muscle after intercostal-musculocutaneous nerve transferMartijn J A Malessy
Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
J Neurosurg 98:261-8. 2003....- Evaluation of suprascapular nerve neurotization after nerve graft or transfer in the treatment of brachial plexus traction lesionsMartijn J A Malessy
Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
J Neurosurg 101:377-89. 2004..The primary goal of brachial plexus reconstructive surgery was to restore biceps muscle function and, secondarily, to reanimate shoulder function... 
Nerve tubes for peripheral nerve repairGodard C W de Ruiter
Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
Neurosurg Clin N Am 20:91-105, vii. 2009..In addition, it briefly discusses the different modifications to the common single lumen nerve tubes that may improve the results of generation...- Electromyography, nerve action potential, and compound motor action potentials in obstetric brachial plexus lesions: validation in the absence of a "gold standard"Martijn J A Malessy
Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
Neurosurgery 65:A153-9. 2009..The intraoperative appraisal is difficult and depends on experience, but even in experienced hands, misjudgment can be made... - Needle electromyography at 1 month predicts paralysis of elbow flexion at 3 months in obstetric brachial plexus lesionsJ Gert van Dijk
Department of Neurology and Clinical Neurophysiology, Leiden University Medical Centre, Leiden, The Netherlands
Dev Med Child Neurol 54:753-8. 2012..We investigated whether EMG at 1 week or 1 month identifies infants with flexion paralysis at 3 months, allowing early referral... 
Severe obstetric brachial plexus palsies can be identified at one month of ageMartijn J A Malessy
Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
PLoS ONE 6:e26193. 2011..To establish whether severe obstetric brachial plexus palsy (OBPP) can be identified reliably at or before three months of age...- Intraoperative nerve action and compound motor action potential recordings in patients with obstetric brachial plexus lesionsWillem Pondaag
Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
J Neurosurg 109:946-54. 2008.... - Nerve surgery for neonatal brachial plexus palsyMartijn J A Malessy
Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
J Pediatr Rehabil Med 4:141-8. 2011..Decision-making regarding surgical selection and determination of the appropriate procedures is presented, as are the outcomes. Improved function can be obtained with surgical repair... - Recovery of hand function following nerve grafting and transfer in obstetric brachial plexus lesionsWillem Pondaag
Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
J Neurosurg 105:33-40. 2006..The authors present a surgical strategy aimed primarily at restoration of hand function and analyze their methods and outcome to determine specific factors affecting functional recovery... - Obstetric brachial plexus injuriesMartijn J A Malessy
Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
Neurosurg Clin N Am 20:1-14, v. 2009..The studies of preoperative electromyographic and intraoperative nerve action potential and compound motor action potentials, and of results of nerve surgery, of which some parts have been published, are discussed... - Obstetric brachial plexus lesions and central developmental disabilitySonja Buitenhuis
Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
Early Hum Dev 88:731-4. 2012..Second, to test the ability of General Movements (GMs) to identify CDD children already at three months of age... - Surgery for large vestibular schwannoma: residual tumor and outcomeWillem P Godefroy
Department of Otorhinolaryngology, Leiden University Medical Centre, Leiden, The Netherlands
Otol Neurotol 30:629-34. 2009..To evaluate clinical outcome with regard to the amount of residual tumor after surgery for large vestibular schwannoma... - From microsurgery to nanosurgery: how viral vectors may help repair the peripheral nerveMartijn R Tannemaat
Netherlands Institute for Neuroscience, Amsterdam, The Netherlands
Prog Brain Res 175:173-86. 2009..Finally, we discuss how lentiviral vectors can be used to provide new, molecular neurobiology-based, approaches to address the clinical challenges described above... - Mutations affecting BRAF, EGFR, PIK3CA, and KRAS are not associated with sporadic vestibular schwannomasMaurits de Vries
Department of Pathology, Leiden University Medical Center, PO Box 9600, 2300 RC, Leiden, The Netherlands
Virchows Arch 462:211-7. 2013..These results are in contrast to the recent detection of these BRAF mutations in non-head and neck schwannomas... - Tumor-associated macrophages are related to volumetric growth of vestibular schwannomasMaurits de Vries
Department of Pathology, Leiden University Medical Center, Leiden, The Netherlands
Otol Neurotol 34:347-52. 2013..Tumor-associated macrophages contribute to vestibular schwannoma development... - Obstetric brachial plexus lesions: CT myelographyStefan C A Steens
Department of Radiology, Leiden University Medical Center, C2S, PO Box 9600, 2300 RC Leiden, The Netherlands
Radiology 259:508-15. 2011..To evaluate the value of computed tomographic (CT) myelography in the detection of root damage and differentiation of root avulsions from neurotmesis in a large cohort of patients with an obstetric brachial plexus lesion (OBPL)... - External rotation as a result of suprascapular nerve neurotization in obstetric brachial plexus lesionsWillem Pondaag
Department of Neurosurgery, Leiden University Medical Center, Leiden, The Netherlands
Neurosurgery 57:530-7; discussion 530-7. 2005..Of special interest was the comparison of two commonly applied SSN neurotization procedures: nerve grafting from C5 versus nerve transfer of the accessory nerve... - Intratemporal facial nerve transfer with direct coaptation to the hypoglossal nerveWillem P Godefroy
Department of Otorhinolaryngology, Leiden University Medical Centre, Leiden, The Netherlands
Otol Neurotol 28:546-50. 2007..To evaluate functional recovery after facial-hypoglossal nerve transfer with direct coaptation of the intratemporal part of the facial nerve... - Designing ideal conduits for peripheral nerve repairGodard C W de Ruiter
Department of Neurosurgery, Leiden University Medical Center, The Netherlands
Neurosurg Focus 26:E5. 2009..In this article the authors discuss the different steps that are involved in the process of the design of an ideal nerve conduit for peripheral nerve repair... - Electrophysiology and morphometry of the Aalpha- and Abeta-fiber populations in the normal and regenerating rat sciatic nerveCarmen L A M Vleggeert-Lankamp
Neuroregulation Group, Department of Neurosurgery, Leiden University Medical Centre LUMC, NL 2300 RC Leiden, The Netherlands
Exp Neurol 187:337-49. 2004..This demonstrates that combining morphometric and electrophysiological analysis provides better insight in the changes that occur during regeneration... - A cross-sectional study of hand sensation in adults with conservatively treated obstetric brachial plexus lesionGalia V Anguelova
Department of Neurology, Leiden University Medical Centre, Leiden, The Netherlands
Dev Med Child Neurol 55:257-63. 2013..However, there is no obvious physiological reason why this should be so. Any persistent problems with sensory innervation might contribute to disability, therefore we aimed to assess sensory dysfunction in adults resulting from OBPL... - Intratumoral hemorrhage, vessel density, and the inflammatory reaction contribute to volume increase of sporadic vestibular schwannomasMaurits de Vries
Department of Otolaryngology, Leiden University Medical Center, P O Box 9600, 2300 RC, Leiden, The Netherlands
Virchows Arch 460:629-36. 2012..The volume increase of vestibular schwannomas is not based on cell proliferation alone. Factors like intratumoral bleeding, (neo)vascularization, and intensity of the inflammatory reaction also influence tumor volume... - Natural history of obstetric brachial plexus palsy: a systematic reviewWillem Pondaag
Department of Neurosurgery, Leiden University Medical Centre, PO Box 9600, 2300 RC Leiden, The Netherlands
Dev Med Child Neurol 46:138-44. 2004 - Misdirection of regenerating motor axons after nerve injury and repair in the rat sciatic nerve modelGodard C W de Ruiter
Department of Neurologic Surgery, Mayo Clinic, Rochester, Minnesota, USA
Exp Neurol 211:339-50. 2008..The results of this study can be used as basis for developing new nerve repair techniques that may improve the accuracy of regeneration... - Nerve root repairRalph T W M Thomeer
J Neurosurg 96:138-9. 2002 - Methods for in vitro characterization of multichannel nerve tubesGodard C de Ruiter
Cellular Neurobiology Laboratory, Mayo Clinic, Rochester, Minnesota, USA
J Biomed Mater Res A 84:643-51. 2008..The methods presented in this study can be used as a basis for optimizing these properties for future, possibly clinical, application... - Two-dimensional digital video ankle motion analysis for assessment of function in the rat sciatic nerve modelGodard C de Ruiter
Department of Neurologic Surgery, Mayo Clinic, Rochester, MN 55905, USA
J Peripher Nerv Syst 12:216-22. 2007..2D digital video ankle motion analysis is a practical and sensitive method to assess function in the rat sciatic nerve model... - Human neuroma contains increased levels of semaphorin 3A, which surrounds nerve fibers and reduces neurite extension in vitroMartijn R Tannemaat
Laboratory for Neuroregeneration, Netherlands Institute for Neuroscience, An Institute of the Royal Academy of Arts and Sciences, 1105 BA Amsterdam, The Netherlands
J Neurosci 27:14260-4. 2007..These findings contribute to the understanding of the outgrowth inhibitory properties of neuroma tissue... - Genetic modification of human sural nerve segments by a lentiviral vector encoding nerve growth factorMartijn R Tannemaat
Laboratory for Neuroregeneration, Netherlands Institute for Neuroscience, Netherlands Academy of Arts and Sciences, Amsterdam, The Netherlands
Neurosurgery 61:1286-94; discussion 1294-6. 2007..These problems may be overcome with the use of lentiviral (LV) vectors that direct sustained local transgene expression in cells...