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Updated: Jul 2, 2026

Procurement for a Vascularized and Reinnervated Abdominal Wall Allotransplantation
Published on: July 18, 2025
Atelectasis after free rectus transfer and abdominal wall reconstruction
Jamie O Lo1, Stephen M Weber, Peter E Andersen
1Department of Otolaryngology-Head and Neck Surgery, Oregon Health & Science University, 3181 S.W. Sam Jackson Park Road, Portland, Oregon 97239, USA.
Augmenting the rectus sheath closure with mesh or acellular dermis after rectus abdominis free flap harvest may reduce postoperative atelectasis. This surgical technique shows promise in improving patient outcomes.
Area of Science:
- Plastic Surgery
- Thoracic Surgery
- Abdominal Wall Reconstruction
Background:
- Atelectasis is a frequent complication following rectus abdominis tissue transfer.
- Primary closure of the anterior rectus sheath may exacerbate atelectasis.
- Surgical mesh augmentation is explored as a method to mitigate this complication.
Purpose of the Study:
- To evaluate the efficacy of anterior rectus sheath augmentation in reducing postoperative atelectasis.
- To compare outcomes between augmented and primary closure techniques after rectus abdominis free flap harvest.
Main Methods:
- Retrospective review comparing 32 patients with mesh or acellular dermis augmentation to 23 patients with primary rectus sheath closure.
- Radiographic detection of atelectasis was used as the primary outcome measure.
Main Results:
- While overall atelectasis rates were similar (91% vs. 83%), major atelectasis was significantly reduced in the augmented group (41% vs. 61%, p<.05).
- The incidence of atelectasis was not influenced by skin flap size or operative duration.
Conclusions:
- Augmenting the abdominal wall with acellular dermis or mesh can decrease the incidence of major postoperative atelectasis.
- This approach offers a potential strategy to improve patient recovery after rectus abdominis free flap procedures.
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