Papers of The 4th Japan Scar Workshop

25. Clinical study on the classification of postoperative scars and frequency analysis of hypertrophic scars and keloids

Mamiko Tosa1, Masahiro Murakami1, Hyakusoku Hiko2
1:Department of Plastic and Reconstructive Surgery, Nippon Medical School Musashikosugi Hospital, Kawasaki, Japan
2:Department of Plastic, Reconstructive and Aesthetic Surgery, Nippon Medical School,Tokyo, Japan

The etiology and developmental process of hypertrophic scar and keloid are unclear, therefore, it is important to make effort to prevent and treat these lesions at an early stage. The lower abdominal region is known as a site at which postoperative abnormal scars are easy to develop.
Since May 2006, we have started an outpatient clinic that examines postoperative scars after obstetrical and gynecological operation. The aim of this study was to classify the types of scars at one month postoperative and determine the frequency of abnormal scars such as hypertrophic scars and keloids one year after operation.
There were 6 types of postoperative scars that were classified on the basis of the scar condition at one month postoperative.
The frequency of development of postoperative hypertrophic scar at 1 year was 22.9% and that for keloid was 2.55%.
There were differences in the frequency of development of hypertrophic scars and keloids among different types of scars one month postoperative.
It was revealed that it is important to check the scar condition at one month postoperative, and decide whether treatment is needed to prevent abnormal development of scars.
Copyright(C) 2010 Japan Scar Workshop All rights reserved.