Sesamoid bones of the first metatarsophalangeal joint are considered to be a normal part of the skeleton; however, sesamoid bones at the lesser metatarsals and the hallux interphalangeal joint are rarely seen and are accepted as accessory bones.
The authors presented a unique case report of a 68-year-old woman with accessory sesamoid bones in all of the metatarsophalangeal joints with mild metatarsalgia symptoms.
Physical examination revealed mild metatarsalgia without any callosities on the plantar aspect of the foot.
Other than mild hallux valgus deformity, there were no lesser toe deformities. On standing, the patient had no clinical appearance of pes planus or pes cavus deformity.
Weightbearing dorsoplantar and nonweightbearing oblique radiographs of the right foot revealed the presence of plantarly located sesamoid bones in all of the lesser metatarsophalangeal joints.
Two ossicles were present under the fourth and fifth metatarsal heads, and a single ossicle was located under the second and third metatarsal heads.
The lengths of the sesamoids were as follows – medial hallux sesamoid, 10.1 mm; lateral hallux sesamoid, 9.0 mm; second metatarsal sesamoid, 6.7 mm; third metatarsal sesamoid, 6.5 mm; medial fourth sesamoid, 6.1 mm; lateral fourth sesamoid, 4.3 mm; lateral fourth sesamoid, 3.9 mm; medial fifth sesamoid, 4.5 mm; and lateral fifth sesamoid, 3.2 mm.
Conservative treatment of the patient included metatarsal padding and footwear modification.
After 3 months of follow-up, the patient’s metatarsalgia was found to be reduced.
In scientific literature, there are studies showing the frequencies of accessory lesser metatarsal sesamoid bones for each metatarsophalangeal joint.
However, this is the first case reporting a patient with lesser metatarsal sesamoids in all of the metatarsophalangeal joints.
Copyright 2018 MASS4D® All rights reserved.
Rehabilitation of Your Foot and Lower Back Conditions.
Long Lasting Wear
Strong Foot Support
Easy to use
Handmade MASS4D® Quality
Sign up for free recommended foot exercises, stretching, medical news and everything good for your feet
Please have a a look at our medical reviews and clinical articles on everything about lower biomechanics.
You should always seek the advice of a physician or other qualified healthcare provider with any questions regarding personal health or medical conditions.
The content, products and services offered herein, are here to educate consumers on healthcare and medical issues that may affect their daily lives. Nothing in the content, products or services should be considered, or used as a substitute for, medical advice, diagnosis or treatment. This site and its services do not constitute the practice of any medical, nursing or other professional healthcare advice, diagnosis or treatment.
The marks "MASS4D" and the MASS4D logo are trademarks. The content and design of MASS4D.com is protected by U.S. and international copyright laws. You may not copy, reproduce, republish, upload, post, display, transmit or frame any of these materials without prior written consent from MASS4D®.
The content, products or services on this site should not be considered or used as a substitute for medical advice, diagnosis or treatment and is not intended to provide individual medical advice. Included materials and conversations do not imply a personalised doctor-patient relationship.
Copyright and Intellectual property
MASS4D® and Logo are registered trademarks of MASS4D Inc. All content, trademarks, artwork, and associated imagery are trademarks and/or copyright material of MASS4D® Inc.