Aponeurosis

An aponeurosis is a broad, tendon-like structure composed mainly of collagen fibers. In the abdominal wall, aponeurotic layers from the abdominal muscles interweave to form key midline structures, including components of the linea alba and the anterior abdominal fascia. From a closure standpoint, aponeurotic tissue is part of the load‑bearing connective tissue that must be re-approximated precisely to restore abdominal wall integrity. Failure to achieve secure approximation or excessive tissue trauma can contribute to early separation and long-term weakness.

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