Where is linea semilunaris

Alternatively a mesh can be sutured from the linea alba to the linea semilunaris above the arcuate line to reconstruct the anterior abdominal wall. Introduction Patient positioning The rectus abdominis flap can be transferred as a muscle or myocutaneous free flap. Anatomy The rectus abdominis muscles are located in the paramedian region of the anterior abdominal wall. The following landmarks are identified: Costal margin Linea alba Linea semilunaris Iliac crest Pubis External iliac vessels Femoral artery palpation for pulse.

Flap design There is a versatility in the design of the skin paddle based on the perforators located in the periumbilical region. Transverse skin paddles can be designed: Horizontally Vertically Transversely. Skin incision The skin incision is made at the superior border of outlined paddle through the subcutaneous tissues to the level of the fascia. The inferior skin incision is then completed as described for the superior incision. The musculocutaneous perforators are now identified and protected.

The medial portion of the skin paddle is elevated off the contralateral rectus sheath. The anterior sheath is incised lateral to the linea alba preserving the perforators to the skin. As the dissection proceeds inferiorly the deep inferior epigastric pedicle is identified. Related pathology It is the site of a Spigelian hernia. Related articles: Anatomy: Abdominopelvic. Promoted articles advertising. Rectus sheath diagram Rectus sheath diagram.

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