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Bone density in women receiving Norplant implants for contraception
S Intaraprasert1, S Taneepanichskul, U Theppisai
1Department of Obstetrics and Gynaecology, Faculty of Medicine, Ramathibodi Hospital, Mahidol University, Bangkok, Thailand.
Journal of the Medical Association of Thailand = Chotmaihet Thangphaet
|February 12, 1998
Summary
Long-term Norplant use, a progestin-only contraceptive implant, does not negatively impact bone mineral density. This study found no significant differences in bone density between Norplant users and IUD users.
Area of Science:
- Endocrinology
- Bone Metabolism
- Reproductive Health
Background:
- Assessing the long-term effects of hormonal contraceptives on bone health is crucial for patient counseling.
- Norplant, a progestin-only contraceptive implant, has been used for decades, necessitating research into its skeletal impact.
Observation:
- Bone mineral density was measured using dual-energy X-ray absorptiometry (DEXA) in Norplant users and compared to intrauterine device (IUD) users.
- Serum estradiol levels were also analyzed to investigate potential hormonal influences.
- Demographic and anthropometric data showed no significant differences between the Norplant and IUD groups.
Findings:
- No statistically significant differences in bone mineral density were observed at the distal or ultradistal forearm between women using Norplant long-term and those using IUDs.
- Serum estradiol levels did not differ between the two contraceptive user groups.
Implications:
- This research suggests that Norplant implants do not adversely affect bone mineral density, offering reassurance for women utilizing this contraceptive method.
- Findings support the continued use of Norplant for women concerned about bone health impacts from hormonal contraception.