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PERCUTANEOUS SUTURE OF RECENT ACHILLES TENDON TEARS: PRELIMINARY SERIES



Abstract

Purpose: Orthopaedic treatment of Achilles tendon tears was detailed by Rodineau. Equine immobilisation for eight to twelve weeks without weight bearing is necessary. The rate of recurrent tears varies from 10 to 20%. Conventional surgery provides very low re-tear rates but can lead to cutaneous complications in 10 to 20% of cases. In 2001, Moller et al. conducted a prospective comparison between surgical and functional treatment in 112 patients followed for two years. The rates of recurrent tears were 1.7% for surgery versus 20.8% for functional treatment. The percutaneous suture with Tenolig(r) has not totally eliminated these problems and raises a cost issue. The Achillon procedure is presented as a minimally invasive technique which does not appear to be extremely easy to perform. Several other techniques have been proposed using an external fixator (Nada, 1985), subcutaneous arthroscopy (Aldam, 1989), or a transverse miniincision (Thermann, 2001). The oldest truly percutaneous method was published by Ma and Griffith in 1977. In 2001, Lim et al. conducted a prospective comparison between conventional surgery and percutaneous treatment using the Ma and Griffith method on 66 patients reviewed at six months. Average immobilisation was 12.4 weeks. There were seven infections (21%) in the surgery cohort versus three cases of painful nodules (9%) in the percutaneous cohort in addition to one case of sural nerve paraesthesia.

Material and methods: The percutaneous technique we used was derived from the Ma and Griffith technique. The purpose of this percutaneous technique is to obtain rapidly and easily a solid suture which can be achieved under local anaesthesia at little cost. We developed a special needle with an eye which accepts the type of thread desired. Early in our experience, we used a non-resorbable thread (Ethicon(r) N1) but because of painful nodules we changed to a resorbable thread (Vincryl n2) used for a double suture. The suture is performed under local anaesthesia, the patient in the ventral supine position. An equine plaster boot is worn for three weeks followed by a 90° boot with a walking heal for another three weeks during which weight bearing is allowed. From 1999 to 2002, we have used this technique for 43 patients (28 men and 15 women), mean age 51 years.

Results: The only complications were one case of superficial infection, one painful subcutaneous nodule, and one sural thrombophlebitis. There were no cases of recurrent tear or sural neurinoma.

Discussion: The contraindications for this technique are old tears, recurrent tears, and tears too close to the cal-caneal insertion.

Conclusion: This technique is easy to perform and low-cost. The suture is solid allowing rapid recovery without cutaneous complications.

Correspondence should be addressed to SOFCOT, 56 rue Boissonade, 75014 Paris, France.