Toggle Main Menu Toggle Search

Open Access padlockePrints

Location and removal of non-palpable Implanon((R)) implants with the aid of ultrasound guidance

Lookup NU author(s): Dr Diana Mansour, Dr David Richardson


Full text for this publication is not currently held within this repository. Alternative links are provided below where available.


Background Implanon (R) insertion appears to be an easy procedure, but in a small minority of cases difficulties have been encountered with removal if the rod is impalpable. Methods Patients were referred to the contraceptive and sexual health service with non-palpable Implanon. Following a clinical assessment and examination of the arm where the implant had been inserted, an ultrasound examination was carried out to identify and locate the implant. These implants were subsequently removed, some under general anaesthesia and others under local anaesthesia. Results Twenty-seven patients were referred to the unit with impalpable Implanon rods. In four cases the rods were palpable and were removed in the clinic setting without the need for further intervention. Positive identification of the implants was achieved in 21 of the remaining 23 cases using ultrasound. No implant was detected in two cases and etonogestrel was not demonstrated serologically in either woman, suggesting non-insertion. All 21 Implanon rods identified by ultrasound were successfully removed. In just over 52% of women a previous attempt at removal had been undertaken prior to referral. Conclusions It is possible to identify and locate impalpable Implanon rods with the aid of ultrasound, facilitating their subsequent safe removal. Although previous reports have identified the position of 'lost' implants using ultrasound, this is the first case series to discuss measuring the skin/implant depth. This parameter, together with the precise position of the implant (in muscle or fat), aids removal. All health professionals inserting and removing contraceptive implants should have been appropriately trained.

Publication metadata

Author(s): Singh M, Mansour D, Richardson D

Publication type: Article

Publication status: Published

Journal: Journal of Family Planning and Reproductive Health Care

Year: 2006

Volume: 32

Issue: 3

Pages: 153-156

ISSN (print): 1471-1893

ISSN (electronic): 2045-2098

Publisher: Pavilion


DOI: 10.1783/147118906777888549


Altmetrics provided by Altmetric