Related Experiment Videos
[Hemodynamics in skin and tissue expansion]
1General Hospital, Jinan Unit of People's Liberation Army, Jinan.
Zhonghua Wai Ke Za Zhi [Chinese Journal of Surgery]
|December 1, 1992
Summary
Skin expansion significantly increases capillary blood flow (CBF) in random skin flaps, enhancing flap survival. This study demonstrates improved blood supply and potential for longer flap viability following expansion.
Area of Science:
- Plastic surgery
- Vascular biology
- Tissue engineering
Context:
- Random skin flaps are crucial in reconstructive surgery.
- Assessing flap viability is critical for surgical success.
- Skin expansion is a technique used to increase the available skin surface area.
Purpose:
- To compare the capillary blood flow (CBF) in random skin flaps created on expanded versus unexpanded skin in dogs.
- To evaluate the effect of skin expansion on flap vascularity and survival.
Summary:
- Capillary blood flow (CBF) was measured in random skin flaps using the radioactive microsphere technique.
- Flaps on expanded skin exhibited significantly higher CBF (387 ± 23 µL/min/flap) compared to acute flaps (127 ± 16 µL/min/flap).
- No significant differences in CBF were found between expanded, delayed, and control groups, but the acute group showed markedly reduced flow even at the pedicle.
Impact:
- Skin expansion enhances flap vascularity and may increase flap survival length.
- The findings suggest that pre-expansion of skin is a beneficial strategy for improving random flap outcomes.
- Understanding CBF dynamics in expanded flaps can optimize reconstructive surgical techniques.