Mar 19, 2018

Excision with primary midline suture


In order to shorten wound healing after generous excision of the pilonidal cyst and fistula, the wound was sutured immediately in the 1940s, usually through two rows of sutures (subcutaneous fatty tissue and skin suture). 

Primary midline suture

The time until the wound healed could indeed be shortened in many patients - as long as there were no wound healing disorders. According to numerous follow-up studies after the midline suture, these increased significantly and could be observed in up to 74 % of patients. The healing disorders were mainly due to wound infections, which were hoped to be fought by placing antibiotic carriers inside the wound in the subcutaneous fatty tissue. However, the results of these measures were not very convincing.

Assuming problem-free wound healing, the midline suture leads to a shorter time out of work compared to open wound treatment. However, if the long-term results after excision of the fistula area with open wound treatment are compared with the incision including the midline suture, the suture technique shows a higher recurrence rate of fistula formation. 

Comparing Limberg plastic and midline suture, Limberg plastic gives better long-term results with little-renewed fistula formation. In direct comparison, fewer wound healing disorders are also observed with Limberg plastic.

The excision of the fistula area with subsequent midline suture thus leads to significantly more wound healing disorders and renewed fistula formation, so that it cannot be recommended for the treatment of pilonidal cyst and tailbone fistula. 

Literature sources:

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