[Treatment of ankle osteoarthritis : Analysis of a German nationwide survey].

Background: In most cases osteoarthritis of the ankle is of posttraumatic origin. Younger people are more frequently affected, which makes treatment a particular challenge. In addition to conservative treatment numerous surgical procedures are available for the treatment of advanced arthrosis. The aim of this nationwide survey was to document the current status of the diagnostics and treatment of ankle arthritis in Germany.

Material and methods: Members of the German Society for Orthopedics and Trauma Surgery (DGOU) were invited to participate in an anonymous online survey on the treatment of ankle joint osteoarthritis. The survey included 69 questions on the person, on the diagnostic and treatment approaches as well as 3 clinical and radiological patient cases. The evaluation of the results of the survey included differences in the subgroups of participants based on the discipline, the location of activity, position and certification.

Results: From November 2019 to February 2020 a total of 343 members participated in the survey. For the diagnostics 96% requested conventional radiographs in a standing position and in 2 levels. Other native radiographs were considered necessary by less than half of respondents. Less than one third of participants sometimes (n = 87) or always (n = 18) use an outcome score. The therapeutic repertoire included supramalleolar osteotomy (n = 106), ankle arthroplasty (n = 100) and arthrodesis (n = 248). Open arthrodesis using screws through an anterior approach was the most frequently used surgical procedure.

Conclusion: Diagnostic standards were regularly used in the treatment of ankle arthrosis. With respect to the surgical treatment there was a wide heterogeneity due to the pathological anatomy and preferences of the participants. Open arthrodesis was the most frequently selected procedure.