In this context, the question revolves around identifying a surgical procedure based on an image, with four given options. The correct answer is "Thiersch wiring." Here's a structured explanation:
- Thiersch wiring: This surgical procedure is often employed to address cases of rectal prolapse. It involves the placement of a subcutaneous suture or wire around the anal canal to prevent protrusion.
- Wells procedure: Known for the treatment of hemorrhoids, it incorporates a hemorrhoidectomy with an anorectal ring to maintain mucosal fixation, differing from Thiersch wiring.
- Aktemeier operation: Primarily used to correct rectal prolapse, this operation is more extensive and involves resection, contrasting with the minimal invasiveness of Thiersch wiring.
- Hemorrhoidectomy: A surgical procedure specifically aimed at excising hemorrhoids, distinct from Thiersch wiring targeting prolapse prevention.
In conclusion, among the given options, "Thiersch wiring" is the only procedure explicitly intended for securing the anal canal subcutaneously to prevent rectal prolapse, making it the correct identification for the image.