12-year outcome after modified Watson-Jones tenodesis for ankle instability

In a retrospective study, the long term outcome of the modified Watson-Jone s tenodesis according to Lemberger and Kramer was determined using a questi onnaire, clinical examination, radiographic data, including stress views, m easurement of plantar pressure distribution, and peroneal reaction times on a tilt board, Twenty-five male patients (mean age, 34 years) with a mean f ollowup of 12 years from surgery were available for examination. Eighteen p atients (72%) were classified clinically as having excellent or good result s, The higher presence of osteophytes in the surgically treated ankle in co mparison with the opposite side indicated the progression of arthrosis with time, but this finding could not be related to the reconstruction method. Anterior drawer and talar tilt were reduced significantly in comparison wit h the preoperative stress radiographs, No differences in plantar pressure d istribution were seen between the patients' surgically treated and nonsurgi cally treated feet. The peroneal reaction times of the peroneus brevis and peroneus longus muscles were significantly shorter in the surgically treate d foot compared with the opposite side, It was concluded that the modified Watson-Jones tenodesis effectively corrected lateral ankle instability with no clinical deterioration,vith time and no influence on gait.