ReviewPathophysiology : the official journal of the International Society for Pathophysiology2026
Basal Tone, Muscle Memory and Denervation: Pathophysiological Foundations of Abdominal Wall Hernia Development and Recovery.
Review in Pathophysiology : the official journal of the International Society for Pathophysiology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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10 authors.
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Abstract
Modern abdominal wall hernia surgery is centered on the biomechanics of the fascial-aponeurotic framework and on intra-abdominal pressure (IAP) control; neuromuscular regulation of the wall remains outside perioperative planning. This review reframes the abdominal wall as a coordinated neuromuscular system and outlines a framework in which ventral herniation is hypothesized to represent a compensatory response to altered regulation of elevated IAP, while discoordinated contraction of the muscular layers is proposed as a potential predisposing factor. A structured literature search was performed in PubMed/MEDLINE, Embase and the Cochrane Library from inception to March 2026 across four thematic blocks: basal tone and innervation, spinal pathology and coordination, skeletal muscle memory, and electromyographic and clinical models of denervation. Synthesis followed SANRA criteria. This is not a formal systematic review or meta-analysis. Basal tone of the abdominal muscles is individual and depends on spinal innervation, lifestyle, comorbidity, and hernia duration; obstructive pulmonary disease yields a hypertonic phenotype, and persistent meteorism a hypotonic one. In a patient predisposed to herniation, elevated IAP may be partially accommodated through redistribution of abdominal contents; within the proposed framework, herniation is hypothesized to function as a pressure-relief mechanism. Discoordination of the muscular layers may reduce the capacity of the abdominal wall to adapt to rapid or unfamiliar loading, potentially contributing to hernia formation in predisposed patients. Six meta-analyses of preoperative botulinum toxin type A confirm lateral muscle elongation; none assessed basal-tone recovery after toxin washout. Each hernia patient presents with an individual neuromuscular phenotype shaped by basal tone, intermuscular coordination and muscle memory. The proposed framework complements mechano-fascial concepts with a neurophysiological dimension and provides a hypothesis-generating rationale for investigating phenotype-tailored prehabilitation and postoperative rehabilitation. Prospective electromyographic mapping with functional maneuvers is the immediate research priority.
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