Related Experiment Video
Updated: Jun 1, 2026
Implantation of Optoelectronic Devices in the Rodent Spinal Cord
Published on: July 12, 2024
Complex localization of single-rod contraceptive implant. Report of two clinical cases
Rafael Gerardo Buitrón-García Figueroa1, Alejandro Rodríguez-Báez, Juan González-de la Cruz
1Servicio de Ginecología y Obstetricia, Hospital General de México (HGM), Secretaría de Salud, México, D. F., Mexico. bugr03@prodigy.net.mx.
Background:
The subdermal single-rod contraceptive implant is used by more than one million women worldwide. In México there are ~ 600,000 colocated implants. Cases of complex implant localization caused by a deep insertion procedure have been reported.
Clinical Cases:
Two clinical cases of implant with complex localization are presented. Case 1: we present a 21-year-old female. After the insertion procedure during the 12-, 24-, and 36-month revisions, the implant could not be located. Case 2: we present a 28-year-old female with subdermal single-rod contraceptive implant co-located in the external side of the left arm, partially palpable on the extreme distal area. Transverse cut of ultrasound showed the extreme distal area of the implant at 6 and 7 cm, respectively, at the site of insertion (scar).
Conclusions:
Due to simplicity and accessibility, ultrasound is the selected method for identifying deep nonpalpable implants.
