Characterizing posterior calcaneal spur fractures in insertional Achilles tendinopathy: A case control study

doi:10.5312/wjo.v17.i3.113562

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World Journal of Orthopedics

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2218-5836

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Baishideng Publishing Group Inc, 7041 Koll Center Parkway, Suite 160, Pleasanton, CA 94566, USA

Case Control Study

Copyright: ©Author(s) 2026. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution-NonCommercial (CC BY-NC 4.0) license. No commercial re-use. See permissions. Published by Baishideng Publishing Group Inc.

World J Orthop. Mar 18, 2026; 17(3): 113562
Published online Mar 18, 2026. doi: 10.5312/wjo.v17.i3.113562

Table 4 Comparison of male patients with and without spur fractures, n (%), mean ± SD (median, range)

Parameter	With spur fracture	Without spur fracture	P value
n	76 (45.2)	92 (54.8)
Age (years)	50.8 ± 10.4 (49.5, 32-87)	55.3 ± 12.1 (55.5, 26-81)	0.003
Height (cm)	173.1 ± 6.4 (174, 156-189.2)	171.0 ± 4.9 (170.8, 158-185.3)	0.02
Weight (kg)	81.0 ± 14.2 (79.0, 58.0-147.5)	77.2 ± 13.3 (74.8, 57.7-123.8)	0.06
Body mass index	26.9 ± 3.6 (25.8, 19.9-41.2)	26.5 ± 4.5 (25.4, 19.3-39.8)	0.236
Side (left, right)	76 (34, 42)	92 (48, 44)	0.356
Spur length	12.5 ± 4.6 (11.5, 3-24)	6.2 ± 3.3 (6, 1-19)	< 0.001^c

^cP < 0.001.

The Mann-Whitney U test was used. P values were compared against the Bonferroni-adjusted significance threshold of P < 0.002.

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Citation: Nakajima K. Characterizing posterior calcaneal spur fractures in insertional Achilles tendinopathy: A case control study. World J Orthop 2026; 17(3): 113562
URL: https://www.wjgnet.com/2218-5836/full/v17/i3/113562.htm
DOI: https://dx.doi.org/10.5312/wjo.v17.i3.113562

Nakajima K. Characterizing posterior calcaneal spur fractures in insertional Achilles tendinopathy: A case control study. World J Orthop 2026; 17(3): 113562 [DOI: 10.5312/wjo.v17.i3.113562]

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