26dkou425 10.3205/26dkou425 urn:nbn:de:0183-26dkou4256 Meeting Abstract Werneburg Werneburg Felix F

Universitätsklinikum Halle, Halle (Saale), Deutschland

author Shukla Shukla Devansh D

Universitätsklinikum Halle, Halle (Saale), Deutschland

author Beschauner Beschauner Juliane J

Universitätsklinikum Halle, Halle (Saale), Deutschland

author Felsberg Felsberg Maria M

Universitätsklinikum Halle, Halle (Saale), Deutschland

author Rump Rump Constantin C

Universitätsklinikum Halle, Halle (Saale), Deutschland

author Arbab Arbab Dariusch D

Medizinische Fakultät Witten/Herdecke, Witten/Herdecke, Deutschland

author Zeh Zeh Alexander A

Universitätsklinikum Halle, Halle (Saale), Deutschland

author Delank Delank Karl-Stefan KS

Universitätsklinikum Halle, Halle (Saale), Deutschland

author Gutteck Gutteck Natalia N

Universitätsklinikum Halle, Halle (Saale), Deutschland

author German Medical Science GMS Publishing House

Düsseldorf

610 20261020 engl This is an Open Access article distributed under the terms of the Creative Commons Attribution 4.0 License. Dieser Artikel ist ein Open-Access-Artikel und steht unter den Lizenzbedingungen der Creative Commons Attribution 4.0 License (Namensnennung). M0659 425 Deutsche Gesellschaft für Orthopädie und Unfallchirurgie Deutsche Gesellschaft für Orthopädie und Orthopädische Chirurgie Deutsche Gesellschaft für Unfallchirurgie Berufsverband für Orthopädie und Unfallchirurgie Deutscher Kongress für Orthopädie und Unfallchirurgie (DKOU 2026) Poster | Fuß- und Sprunggelenk Berlin 20261020 20261023 DKOU26_Abs_57 TextObjectives and questions: Talonavicular (TN) arthrodesis is a well-established surgical intervention for addressing isolated joint pathology and deformity within the medial column of the foot. While traditional open approaches allow for precise joint preparation and fixation, they are associated with considerable soft tissue morbidity. Minimally invasive (MIS) techniques have emerged as a potential alternative, yet comparative evidence regarding their efficacy and safety remains limited.Material and methods: Retrospective cohort (2021–2025) of symptomatic TN-joint pathology treated with MIS or open TN arthrodesis. Primary outcomes were radiographic union and maintenance of medial column alignment, assessed by weightbearing tarso-metatarsal angles in dorsoplantar and lateral projections. Secondary outcomes included operative time and early postoperative complications. Group comparisons used nonparametric tests; effects were reported as Cohen’s d where appropriate.Results: A total of 56 feet (55 patients) were included, with 32 procedures performed using a MIS technique and 24 via an open approach. The mean follow-up was 361 ± 69 days, with a minimum radiographic follow-up of 6 months. Radiographic union was achieved in 55 of 56 feet; the single nonunion occurred in the open group and required revision. Postoperative tarso-metatarsal angles approached physiological values in dorsoplantar and lateral views, without statistically significant intra- or intergroup differences. Operative time did not differ significantly between groups (MIS: 59.2 ± 35.6 minutes vs open: 69.6 ± 35.1 minutes; p = 0.415). Aside from the symptomatic nonunion, no complications such as wound healing disorders, infections, thromboembolic events, or implant-related issues occurred in either group.Discussion and conclusions: MIS TN arthrodesis achieves radiographic outcomes and early complication rates equivalent to those of the open approach, with a potential advantage regarding perioperative soft tissue management. These findings support the consideration of MIS techniques as a viable and safe alternative to traditional open techniques. Further prospective studies with longer follow-up are needed to confirm these observations. 0 0 0 0