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Achilles Paratenon Disorders


There is gradual onset of diffuse exercise-induced pain or ache and swelling around the Achilles tendon, often around the mid-portion. It is common in runners and during pre-season training in soccer, rugby and similar sports.


Para-tendinosis is defined from histopathological findings as a paratenon condition with an initial inflammation, changing into fibrosis, thickening of the tendon sheath and adhesions. This condition may or may not be symptomatic. It can be caused by increased friction from ill-fitting shoes, strapping or braces.


There is tenderness on palpation over the tendon, which may feel spongy and thicker, with or without inflammatory signs and with redness and increased temperature. Compare to the other side. This condition may occur simultaneously as tendinosis with or without a nodule (see Achilles tendinosis).


Ultrasound or MRI may show typical extra-tendinous findings and confirm or rule out intra-tendinous ailments.


This often chronic ailment may respond to conservative treatment, including modification of training and calf muscle strengthening exercises that can be tried over three months. It is also important to reduce friction against the tendon by adjusting shoes or technique. If this regime is not successful, surgery may be necessary to release any constrictions and adhesions between the skin and paratendon, which in severe cases needs to be excised. Cortisone injections should be administered only in rare cases, due to the high risk of consequential tendon rupture. Surgery is followed by a few weeks’ partial immobilis ation and rehabilitation before resuming sport. Weight bearing is usually allowed early on.


Refer to orthopaedic surgeon for consideration of surgery. Refer to physiotherapist for planning of a one to two months’ return programme.


Cycling and swimming (when wound is healed) are good alternatives to keep up general fitness.


Monitor clinical symptoms and signs. Note that the tendon may remain thicker than normal. Calf muscle
performance should be similar to the other side. Objective tests with maximal number of resisted toe
raises are strongly suggested before resuming full sport.


Tendinosis, tendinitis, bursitis, para-tendinosis, para-tendonitis.



1 comment to Achilles Paratenon Disorders

  • Mrs A M Slator

    I have has a poorly achillies tendon. It is very swollen on the right foot. It hurts to touch and feels hard to touch. I have completed physio it improved from a pain perspective and got back into gym work with light tredmill work. howvever after a couple of months I am not happy with my achillies and spoke to my consultant. he now wants to see me again. I dont really want an operation as I dont want not to be able to go to the gym.

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