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Long-term effect on donor sites after components separation: a radiographic analysis.
Caitlin W Hicks1, David M Krpata, Jeffrey A Blatnik
1Cleveland, Ohio From the Cleveland Clinic Lerner College of Medicine and the Department of Surgery, University Hospitals Case Medical Center.
Plastic and Reconstructive Surgery
|July 31, 2012
Summary
Components separation surgery expands the rectus abdominis muscle and atrophies the external obliques. Internal oblique and transversus abdominis muscles show compensatory hypertrophy, with functional implications requiring further study.
Area of Science:
- Abdominal wall reconstruction
- Surgical anatomy
- Abdominal imaging
Background:
- The long-term effects of component separation on abdominal muscles are not well understood.
- This study investigates changes in rectus abdominis and oblique muscles after component separation.
Purpose of the Study:
- To evaluate the long-term volumetric and dimensional changes in abdominal muscles following component separation.
- To assess the impact of rectus abdominis muscle expansion and external oblique muscle atrophy.
Main Methods:
- Retrospective analysis of CT scans from 28 patients undergoing bilateral component separation.
- Measurements of rectus abdominis, external oblique, internal oblique, and transversus abdominis muscles at L3-L4 level.
- Preoperative and long-term postoperative (mean 17.4 months) imaging data were compared.
Main Results:
- Rectus abdominis muscles significantly increased in area and width, while decreasing in thickness.
- External oblique muscles showed significant atrophy (decreased area).
- Internal oblique and transversus abdominis muscles demonstrated significant compensatory hypertrophy (increased area).
Conclusions:
- Component separation leads to rectus abdominis expansion and external oblique atrophy.
- Internal oblique and transversus abdominis muscles undergo compensatory hypertrophy.
- Functional consequences of these muscular changes warrant further investigation.