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Indian Journal of Clinical Anatomy and Physiology


Morphometric considerations of articular surfaces of calcaneum, occurrence of enthesophytes and evolutionary significance of cuboidal facet


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Author Details: Prakash KG, Viveka S

Volume : 3

Issue : 1

Online ISSN : 2394-2126

Print ISSN : 2394-2118

Article First Page : 61

Article End Page : 64


Abstract

Introduction: Pattern of talar articular facets on the superior aspect of calcaneum significantly influence in causation of subtalar arthritis. Enthesophytes from calcaneum is a major cause of heel pain. Evolutionary modification of cuboidal facet on calcaneum is an important aspect of human bipedal gait. The objective of this study was to determine the incidence of calcaneal facet pattern and incidence of enthesophytes in calcaneum.
Methodology: Thirty-four dry human calcaneum were studied in Department of anatomy, Azeezia Institute of Medical Sciences, Kollam. All bones were examined for pattern of talar articular facets and classified accordingly. Meticulous examination was carried out to evaluate the incidence of enthesophytes. Morphometry of articular facet for cuboid and talar facets were carried out.
Results: Pattern I morphologic variant was the most frequently encountered type (25 out of 34). Pattern V not observed. Enthesophytes were observed in 21 (61.7%) bones, with medial predominant medial enthesophytes. One bone showed two enthesophytes. Mean cuboidal facet surface area was 386 (±46) square mm.
Conclusion: It was noted that pattern I was the most common morphological variant. Medial tubercular enthesophytes were most common type of abnormal bony outgrowths of calcaneum. The knowledge about variations in morphology is important for all surgeries in subtalar region.

Key words: Calcaneum, Talar articular facets, Cuboidal facet, Enthesophytes