Radiological study of Os Navicular and its Anatomical variants

Introduction: Accessory ossicles are the skeletal variations of the ankle and foot that can cause painful syndromes. Accessory navicular bone also known as Os Naviculare secundarium, Os tibiale externum, is one of the most common accessory ossicle of the foot with an incidence of 4–21%. The presence...

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Main Authors: Mallikarjun Ningappa Adibatti, Muthiah Pitchandi, Bhuvaneswari Venkatesan
Format: Article
Language:English
Published: JCDR Research and Publications Pvt. Ltd. 2018-10-01
Series:International Journal of Anatomy Radiology and Surgery
Subjects:
Online Access:http://www.ijars.net/article_fulltext.asp?issn=0973-709x&year=2018&month=October&volume=7&issue=4&page=RO06-RO09&id=2426
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author Mallikarjun Ningappa Adibatti
Muthiah Pitchandi
Bhuvaneswari Venkatesan
author_facet Mallikarjun Ningappa Adibatti
Muthiah Pitchandi
Bhuvaneswari Venkatesan
author_sort Mallikarjun Ningappa Adibatti
collection DOAJ
description Introduction: Accessory ossicles are the skeletal variations of the ankle and foot that can cause painful syndromes. Accessory navicular bone also known as Os Naviculare secundarium, Os tibiale externum, is one of the most common accessory ossicle of the foot with an incidence of 4–21%. The presence of an OSN can trigger various foot problems such as tibialis posterior tendon pathology, flattening of the medial longitudinal arch and medial foot pain. Aim: To study the incidence, anatomical variants and distribution of Os Navicular (OSN). Materials and Methods: Accessory navicular bones were retrospectively examined in 1,000 (589 men and 411 women) radiographs of foot in the age group 12-80 years. Anterior-posterior/oblique X-ray images were observed for the presence, anatomical variant, and morphology of OSN. All the data was recorded and analysed. Results: Out of 1000 radiographs of the foot, 144 cases of OSN were observed with varying shape and size which accounts for 14.4% incidence. All three types of OSN were noted in the present study with Type II being the most predominant variant with incidence of 50%, while Type I with an incidence of 34.72% and Type III with an incidence of 15.27%. Conclusion: Knowledge regarding the anatomical variants of OSN is important for surgeons and radiologists in the interpretation of foot radiographs and management of cases presenting with foot Pain.
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spelling doaj.art-1814957624624c23b5bc18c747b8ddb62022-12-21T18:12:50ZengJCDR Research and Publications Pvt. Ltd.International Journal of Anatomy Radiology and Surgery2277-85432455-68742018-10-0174RO06RO0910.7860/IJARS/2018/37610:2426Radiological study of Os Navicular and its Anatomical variantsMallikarjun Ningappa Adibatti0Muthiah Pitchandi1Bhuvaneswari Venkatesan2Assistant Professor, Department of Anatomy, ESIC Medical College and PGIMSR, K K Nagar, Chennai, India.Associate Professor, Department of Radiodiagnosis, ESIC Medical College and PGIMSR, K K Nagar Chennai, India.Professor, Department of Radiodiagnosis, ESIC Medical College and PGIMSR, K K Nagar Chennai, India.Introduction: Accessory ossicles are the skeletal variations of the ankle and foot that can cause painful syndromes. Accessory navicular bone also known as Os Naviculare secundarium, Os tibiale externum, is one of the most common accessory ossicle of the foot with an incidence of 4–21%. The presence of an OSN can trigger various foot problems such as tibialis posterior tendon pathology, flattening of the medial longitudinal arch and medial foot pain. Aim: To study the incidence, anatomical variants and distribution of Os Navicular (OSN). Materials and Methods: Accessory navicular bones were retrospectively examined in 1,000 (589 men and 411 women) radiographs of foot in the age group 12-80 years. Anterior-posterior/oblique X-ray images were observed for the presence, anatomical variant, and morphology of OSN. All the data was recorded and analysed. Results: Out of 1000 radiographs of the foot, 144 cases of OSN were observed with varying shape and size which accounts for 14.4% incidence. All three types of OSN were noted in the present study with Type II being the most predominant variant with incidence of 50%, while Type I with an incidence of 34.72% and Type III with an incidence of 15.27%. Conclusion: Knowledge regarding the anatomical variants of OSN is important for surgeons and radiologists in the interpretation of foot radiographs and management of cases presenting with foot Pain.http://www.ijars.net/article_fulltext.asp?issn=0973-709x&year=2018&month=October&volume=7&issue=4&page=RO06-RO09&id=2426medial foot painmedial longitudinal archos tibiale externumtibialis posterior tendon pathology
spellingShingle Mallikarjun Ningappa Adibatti
Muthiah Pitchandi
Bhuvaneswari Venkatesan
Radiological study of Os Navicular and its Anatomical variants
International Journal of Anatomy Radiology and Surgery
medial foot pain
medial longitudinal arch
os tibiale externum
tibialis posterior tendon pathology
title Radiological study of Os Navicular and its Anatomical variants
title_full Radiological study of Os Navicular and its Anatomical variants
title_fullStr Radiological study of Os Navicular and its Anatomical variants
title_full_unstemmed Radiological study of Os Navicular and its Anatomical variants
title_short Radiological study of Os Navicular and its Anatomical variants
title_sort radiological study of os navicular and its anatomical variants
topic medial foot pain
medial longitudinal arch
os tibiale externum
tibialis posterior tendon pathology
url http://www.ijars.net/article_fulltext.asp?issn=0973-709x&year=2018&month=October&volume=7&issue=4&page=RO06-RO09&id=2426
work_keys_str_mv AT mallikarjunningappaadibatti radiologicalstudyofosnavicularanditsanatomicalvariants
AT muthiahpitchandi radiologicalstudyofosnavicularanditsanatomicalvariants
AT bhuvaneswarivenkatesan radiologicalstudyofosnavicularanditsanatomicalvariants