International Journal of Current Research and Review
ISSN: 2231-2196 (Print)ISSN: 0975-5241 (Online)
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IJCRR - Vol 05 Issue 07, April, 2013

Pages: 93-97

Date of Publication: 18-Apr-2013

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Author: A. Perumal, A. Anand

Category: Healthcare

Abstract:The calcaneum is a key tarsal bone in the skeleton of the foot. When a person stands, the calcaneum forms a focal point for transmission of weight. Due to long standing hours and disorders like obesity and diabetes, there is an abnormal growth of bony spur on the inferior surface of the calcaneum either due to calcification or deposition of calcium salts on the fibrous tissue attached to the tubercles. Many studies have highlighted the radiological existence of the spur based on western population. This study is centered around the Morphometric analysis of the calcaneal spur. 218 calcaneae were analyzed. Spur formation in 122 bones was observed. The mean length was more in the right (0.95cm) than left side(0.87cm).The mean breadth was also more in the right (1.73cm) than left (1.71cm). Variations of shape of spur like triangular, circular and oblong shape were categorized. There is a significant difference between radiological appearance and naked eye examination. The findings will serve as a guideline to foot and ankle surgeons who deal with calcaneal spurs.

Keywords: Calcaneum, calcaneal spur, heel pain

Full Text:


The calcaneum is the key bone and the largest1 in skeleton of the foot which plays the most significant role in transmission of weight, weight bearing, posture and gait. Very rarely the calcaneum may also present itself with a set of accessory bones1 . Such accessory bones of the calcaneum presenting in the inferior or the plantar surface is the os sub calcis and os aponeurosis plantaris. Due in improvement in the quality of life, there is an increase of life expectancy. Increased life expectancy leads to an aging population and presents itself with diseases and conditions associated with it. Out the diseases associated with the formation of a calcaneal spur, obesity plays an important role2 . Although the mechanism of formation of calcaneal spur is not clearly understood it has been suggested that it could either due to longitudinal traction or due to vertical compression and but are yet inconclusive regarding the formation of a spur. Most of the studies on calcaneal spurs have focused mainly on radiological appearance and in some cases the histological architecture and during observation during surgery. This study centers around the calcaneal spurs which are observed by naked eye examination. Whatever be the cause of origin of the calcaneal spur, it results in heel pain for the affected person and leads to an interferes activities of daily living. Persons whose profession involves standing for long hours are the most affected3 . Usually the affected individuals are adults however there are reported cases of calcaneal spur occurring in young individuals also4 . There also exists a higher frequency of calcaneal spur formation in individuals with abductor digiti minimi atrophy5 .


218 Dry Human calcaneae from the Department of Anatomy, Vinayaka Missions Kirupananda Variyar Medical College, Salem were obtained for the study. The calcaneae without spur formation were excluded from the study. Those calcaneae with spurs were measured using a vernier calipers and photographed using digital photographic equipment. A hand lens was used for close examination of the calcaneal spur.
The calcaneae with spurs were subjected to the following parameters.

  •  Length of the spur
  •  Breadth of the spur
  •  Thickness of the spur
  •  Any other bony variation


Out of the 218 calcaneae observed, only 122 calcaneae exhibited spur formation (n=122). The differences in the sides were also categorized (Table-1). The length of the calcaneal spur was measured in which the right sided spurs were longer than the left side (Table-2).There was only a marginal difference in the breadth of the spur of the right and the left sides and the right sided spurs were broader than the left (Table-3). Also the thickness of the spur were more on the right than the left (Table-4). The variations in the shape of the spur were categorized (Table-5). The resultant measurements were statistically analyzed (Table-6).


In the present study it is observed that there was no spur formation from the lateral tubercle of calcaneum and the calcaneal spurs originated from the medial tubercle predominantly and in a miniscule percentage the spur took origin from both the tubercles. This extended presence could be due to the muscles of the first layer of sole and the plantar aponeurosis conjoin to form a single origin at the medial calcaneal tubercle as reported by Simon Smith6 et al. (2007). All the calcaneal spurs were visualized as a hook like projection when viewed from the side whereas in true sense it had a broad margin. The formation of the spurs were due to compression force exerted on the calcaneum during weight bearing. This could be due to an increased load and calcaneal spurs were a resultant feature from obesity7 as reported by Jakob C Thorud et al. The cause for formation of a calcaneal spur is multifactorial but it is evident from the present study that the spur is of various sizes and shapes. There is a preponderance towards a bigger right sided spur than the left which could be due to biomechanical reasons. In all the bones studied the spurs appeared to be an extension from the medial tubercle of the calcaneum rather than a new bone formation and in some of the bones the presence of vascular foramina points out that it had incorporated into and had become an integral part of the medial tubercle of calcaneum. Calcification of the structures attached to the medial tubercle was not observed in any of the bones. The presence of a calcaneal spur affects the normal alignment of structures attached to the medial tubercle of calcaneum thereby causing instability which results in heel pain. The spur is akin to that of an osteophyte or a new bone formation. Repeated traction could result in breakage of the osteophyte resulting in pain and in some instances these micro fractures may not be visible in spite of using sophisticated investigations.


Based on the present study, it can be inferred that spur formation predominantly occurs in the medial tubercle of calcaneum. The differences in the shape and size of the spurs is multifactorial like compression forces and biomechanical reasons. Calcaneal spur formation will result in heel pain and difficulties in posture and walking style of an affected individual. However more elaborate studies have to conducted to exactly pinpoint the cause of formation of a spur in the calcaneum.


The authors sincerely wish to thank the management, administrators and the Professor and Head of the department of Anatomy of Vinayaka Missions Kirupananda Variyar Medical College, Salem for their whole hearted support and permissions to utilize their resources and conduct this study. The authors acknowledge the great help received from the scholars whose articles cited and included in references of this manuscript. The authors are also grateful to authors/editors/publishers of all those articles, journals and books from where the literature for this article has been reviewed and discussed. Authors are grateful to IJCRR editorial board members and IJCRR team of reviewers who have helped to bring quality to this manuscript.



1. Susan Standring, in Gray's Anatomy, Churchill Livingstone 2008, 40:1437.

2. Hylton B Menz, Gerard V Zammit, Karl B Landorf, Shannon E Munteanu. Plantar calcaneal spurs in older people: longitudinal traction or vertical compression? Journal of Foot and ankle. Research 2008; 1:7.

3. R. Cosentino, P Falsetti, S Manca, R De Stefano, E Frati, B Frediana, F Baldi, E Selvi, R Marcolongo. Efficacy of extracorporeal shock wave treatment in calcaneal enthesophytosis. Ann Rheum Dis 2001; 60: 1064 – 1067.

4. B. Reeves. Development of an os calcaneal spur in a boy between the ages of 10 and 14 years. Ann Rheum Dis 1965; 24: 66.

5. Usha Chundru, Amy Liebeskind, Frank Seidelmann, Joshua Fogel, Peter Franklin, Javier Beltran. Plantar fasciitis and calcaneal spur formation are associated with abductor digiti minimi atrophy on MRI of the foot. Skeletal Radiol 2008: 37:505–510.

6. Simon Smith, Paul Tinley, Mark Gilheany, Brian Grills, Andrew Kingsford. The inferior calcaneal spur—Anatomical and histological considerations. The foot 2007; 17: 25-31.

7. Jakob C. Thorud, Tyler Jolley, Naohiro Shibuya, Daniel C. Jupiter. Association of calcaneal spurs with above average body weight. Texas A & M Health Science Center, College of Medicine, Temple TX.

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Best Article Award

A Study by Juna Byun et al. entitled "Study on Difference in Coronavirus-19 Related Anxiety between Face-to-face and Non-face-to-face Classes among University Students in South Korea" is awarded Best Article for Vol 12 issue 16
A Study by Sudha Ramachandra & Vinay Chavan entitled "Enhanced-Hybrid-Age Layered Population Structure (E-Hybrid-ALPS): A Genetic Algorithm with Adaptive Crossover for Molecular Docking Studies of Drug Discovery Process" is awarded Best article for Vol 12 issue 15
A Study by Varsha M. Shindhe et al. entitled "A Study on Effect of Smokeless Tobacco on Pulmonary Function Tests in Class IV Workers of USM-KLE (Universiti Sains Malaysia-Karnataka Lingayat Education Society) International Medical Programme, Belagavi" is awarded Best article of Vol 12 issue 14, July 2020
A study by Amruta Choudhary et al. entitled "Family Planning Knowledge, Attitude and Practice Among Women of Reproductive Age from Rural Area of Central India" is awarded Best Article for special issue "Modern Therapeutics Applications"
A study by Raunak Das entitled "Study of Cardiovascular Dysfunctions in Interstitial Lung Diseas epatients by Correlating the Levels of Serum NT PRO BNP and Microalbuminuria (Biomarkers of Cardiovascular Dysfunction) with Echocardiographic, Bronchoscopic and HighResolution Computed Tomography Findings of These ILD Patients" is awarded Best Article of Vol 12 issue 13 
A Study by Kannamani Ramasamy et al. entitled "COVID-19 Situation at Chennai City – Forecasting for the Better Pandemic Management" is awarded best article for  Vol 12 issue 12
A Study by Muhammet Lutfi SELCUK and Fatma COLAKOGLU entitled "Distinction of Gray and White Matter for Some Histological Staining Methods in New Zealand Rabbit's Brain" is awarded best article for  Vol 12 issue 11
A Study by Anamul Haq et al. entitled "Etiology of Abnormal Uterine Bleeding in Adolescents – Emphasis Upon Polycystic Ovarian Syndrome" is awarded best article for  Vol 12 issue 10
A Study by Arpita M. et al entitled "Estimation of Reference Interval of Serum Progesterone During Three Trimesters of Normal Pregnancy in a Tertiary Care Hospital of Kolkata" is awarded best article for  Vol 12 issue 09
A Study by Ilona Gracie De Souza & Pavan Kumar G. entitled "Effect of Releasing Myofascial Chain in Patients with Patellofemoral Pain Syndrome - A Randomized Clinical Trial" is awarded best article for  Vol 12 issue 08
A Study by Virendra Atam et. al. entitled "Clinical Profile and Short - Term Mortality Predictors in Acute Stroke with Emphasis on Stress Hyperglycemia and THRIVE Score : An Observational Study" is awarded best article for  Vol 12 issue 07
A Study by K. Krupashree et. al. entitled "Protective Effects of Picrorhizakurroa Against Fumonisin B1 Induced Hepatotoxicity in Mice" is awarded best article for issue Vol 10 issue 20
A study by Mithun K.P. et al "Larvicidal Activity of Crude Solanum Nigrum Leaf and Berries Extract Against Dengue Vector-Aedesaegypti" is awarded Best Article for Vol 10 issue 14 of IJCRR
A study by Asha Menon "Women in Child Care and Early Education: Truly Nontraditional Work" is awarded Best Article for Vol 10 issue 13
A study by Deep J. M. "Prevalence of Molar-Incisor Hypomineralization in 7-13 Years Old Children of Biratnagar, Nepal: A Cross Sectional Study" is awarded Best Article for Vol 10 issue 11 of IJCRR
A review by Chitra et al to analyse relation between Obesity and Type 2 diabetes is awarded 'Best Article' for Vol 10 issue 10 by IJCRR. 
A study by Karanpreet et al "Pregnancy Induced Hypertension: A Study on Its Multisystem Involvement" is given Best Paper Award for Vol 10 issue 09
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Awardees of COVID-19 Research

Woman Researcher Award

A Study by Neha Garg et al. entitled "Optimization of the Response to nCOVID-19 Pandemic in Pregnant Women – An Urgent Appeal in Indian Scenario" published in Vol 12 issue 09

A Study by Sana Parveen and Shraddha Jain entitled "Pathophysiologic Enigma of COVID-19 Pandemic with Clinical Correlates" published in Vol 12 issue 13

A Study by Rashmi Jain et al. entitled "Current Consensus Review Article on Drugs and Biologics against nCOVID-19 – A Systematic Review" published in Vol 12 issue 09

Emerging Researcher Award

A Study by Madhan Jeyaraman et al. entitled "Vitamin-D: An Immune Shield Against nCOVID-19" published in Vol 12 issue 09

Study by Dheeraj Kumar Chopra et al. entitled "Lipid-Based Solid Dispersions of Azilsartan Medoxomil with Improved Oral Bioavailability: In Vitro and In Vivo Evaluation" published in Vol 12 issue 19

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