Nahas F X, Augusto S M, Ghelfond C
Divisions of Plastic Surgery and Radiology, Hospital Jaraguá, Sao Paulo, Brazil.
Plast Reconstr Surg. 2001 Mar;107(3):700-6. doi: 10.1097/00006534-200103000-00008.
Nylon and polydioxanone are two sutures commonly used to correct rectus diastasis. Polydioxanone, as an absorbable suture, has the advantage of not being palpable in thin patients. Because several forces act against the plication, an absorbable suture would not be efficient in these cases. In this study, two groups of 10 patients each were studied. These patients underwent abdominoplasty and correction of rectus diastasis. In the control group, 2-0 nylon was used to plicate the anterior aponeurosis and 0-polydioxanone was used in the experimental group. The tension of the abdominal wall was measured with a dynamometer in both groups. The width of rectus diastasis was measured 3 cm above and 2 cm below the umbilicus, using a computed tomography (CT) scan before the operation and 3 weeks and 6 months after surgery. The width of rectus diastasis was measured intraoperatively at the same levels. The data were analyzed by Student's t test. Both groups had similar abdominal wall tension on both levels. The diastasis recti was completely corrected at both levels, as confirmed by the 3-week postoperative CT scan and the 6-month CT scan. At the superior level, the width of the rectus diastasis on the preoperative CT scan (2.6 +/- 0.7 cm) was similar to the values obtained intraoperatively (2.7 +/- 0.6 cm), showing no significant statistical difference. At the inferior level, the largest difference between the preoperative CT scan and the intraoperative finding was 0.3 cm. In conclusion, the correction of rectus diastasis with 2-0 nylon and 0-polydioxanone was achieved and maintained after 6 months. CT scans are an accurate method for studying rectus diastasis and other muscles of the abdominal wall.
尼龙和聚二氧六环酮是常用于矫正腹直肌分离的两种缝线。聚二氧六环酮作为一种可吸收缝线，在体型较瘦的患者中具有不会被触及的优点。由于有多种力量对抗折叠，在这些情况下可吸收缝线的效果不佳。在本研究中，对两组各10例患者进行了研究。这些患者接受了腹壁成形术和腹直肌分离矫正术。对照组使用2-0尼龙线折叠前腱膜，实验组使用0号聚二氧六环酮。两组均用测力计测量腹壁张力。在术前、术后3周和6个月，使用计算机断层扫描（CT）在脐上3 cm和脐下2 cm处测量腹直肌分离的宽度。术中在相同水平测量腹直肌分离的宽度。数据采用学生t检验进行分析。两组在两个水平上的腹壁张力相似。术后3周和6个月的CT扫描证实，两个水平的腹直肌分离均得到完全矫正。在上部水平上，术前CT扫描时腹直肌分离的宽度（2.6±0.7 cm）与术中测量值（2.7±0.6 cm）相似，无显著统计学差异。在下部水平上，术前CT扫描与术中发现之间的最大差异为0.3 cm。总之，使用2-0尼龙线和0号聚二氧六环酮矫正腹直肌分离在6个月后得以实现并维持。CT扫描是研究腹直肌分离和腹壁其他肌肉的准确方法。
