Removal of a Nonpalpable Etonogestrel Implant With Preprocedure Ultrasonography and Modified Vasectomy Clamp.

BACKGROUND: Deep etonogestrel contraceptive implant placements still occur despite design modifications to the implant inserter. We present a method for outpatient removal of a nonpalpable etonogestrel implant using preprocedure ultrasonography for implant localization followed by removal with a modified vasectomy clamp, a modification of the "U" technique for six-capsule levonorgestrel implant removal. TECHNIQUE: In women with a nonpalpable etonogestrel implant containing barium sulfate, we obtain a radiographic examination to confirm the implant's presence in the upper extremity. Using an 18-MHz linear ultrasound transducer, we identify and mark the implant location on the patient's arm, noting the depth. We remove the implant with local anesthesia in the office using a modified vasectomy clamp through a 5-mm or less skin incision directly over the implant. EXPERIENCE: All three patients referred to our office with nonpalpable etonogestrel implants had successful removal using this technique.
CONCLUSION: Nonpalpable contraceptive implants can be removed in the office using a modified vasectomy clamp after localization with high-frequency ultrasonography. Given the relative infrequency of nonpalpable implant removals, regional expert sites with health care providers experienced in difficult removals should be created for patient referrals.