Modified Evans technique improves plantar pressure distribution in lateral ankle instability
Sabri Ateşalp1, Bahtiyar Demiralp1, Uğur Barış Özkal1, Mahmut Uğurlu2, Murat Bozkurt3, Mustafa Başbozkurt1
1Department of Orthopedics and Traumatology, Gülhane Military Medical Faculty, Ankara, Turkey
2Department of 1st Orthopedics and Traumatology, Ankara Atatürk Training and Research Hospital, Ankara, Turkey
3Department of 3rd Orthopedics and Traumatology, Dışkapı Yıldırım Beyazıt Training and Research Hospital, Ankara, Turkey
Keywords: Modified Evans technique; lateral ankle instability; metatarsal head pressure.
Abstract
Objectives: Efficiency of the modified Evans technique based on clinical and radiological evaluations was determined by plantar pressure measurement.
Patients and methods: Eleven patients (2 females, 9 males; mean age 29 years; range 19 to 39 years) with chronic lateral ankle instability were surgically treated using the modified Evans technique. Plantar pressures of nine patients were measured pre- and post-operatively.
Results: Plantar pressure below the first metatarsal head decreased in seven of the patients after surgery. Furthermore, in all of the patients, the time of initial contact decreased significantly and the pathology returned to normal limits in the postoperative period.
Conclusion: Modified Evans technique, despite its controversial long-term outcomes in lateral ankle instability, decreases first metatarsal head pressure and initial contact time significantly.