Achilles Tendinopathy by Mika Paavola, Pekka Kannus, Tero A.H. Järvinen, Karim Khan, Lászlo Józsa, and Markku Järvinen J Bone Joint Surg Am Volume 84(11):2062-2076

Achilles Tendinopathy

by Mika Paavola, Pekka Kannus, Tero A.H. Järvinen, Karim Khan, Lászlo Józsa, and Markku Järvinen

J Bone Joint Surg AmVolume 84(11):2062-2076

November 1, 2002

©2002 by The Journal of Bone and Joint Surgery, Inc.

Myofibroblast in the paratenon of the Achilles tendon.

Mika Paavola et al. J Bone Joint Surg Am 2002;84:2062-2076


Lysis of the collagen fiber can be seen around degenerated tenocytes in Achilles tendinopathy (Masson trichrome staining, ×300).



Only a few unconnected collagen fibers are visible in the mucoid degeneration (asterisks) located inside the Achilles tendon.



Calcium deposits (black) have been precipitated on the surface of the collagen fibers in the calcifying tendinopathy of the Achilles tendon (transmission electron microscope, ×6800).



Tendolipomatosis in Achilles tendinopathy.



Obliterative arteritis (thin arrows) and venous proliferation with periphlebitis (thick arrow) are visible in the paratenon of patients with chronic Achilles tendinopathy (hematoxylin and eosin,

×100).



Longitudinal ultrasound image of an Achilles tendon with intratendinous changes.



Figs. 8-A and 8-B Longitudinal (Fig. 8-A) and transverse (Fig. 8-B) T2-weighted gradient echo magnetic resonance images of Achilles tendinopathy demonstrate thickening of the tendon and

signal changes within the Achilles tendon.



Photograph of a patient with chronic Achilles tendinopathy, demonstrating a tender, nodular swelling (arrows) that moved as the ankle was dorsiflexed and plantar flexed.



This patient had an intratendinous necrotic focus, which was excised and sent for histopathologic analysis.



Documents

Achilles Tendinopathy by Mika Paavola, Pekka Kannus, Tero A.H. Järvinen, Karim Khan, Lászlo Józsa, and Markku Järvinen J Bone Joint Surg Am Volume 84(11):2062-2076