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Study identifier: NCT06211504 Synced from ClinicalTrials.gov · July 29, 2026
● Recruiting

Sinus Tarsi Implant as an Adjuvant Procedure to Medial Displacement Calcaneal Osteotomy in the Treatment of Mobile Adult Acquired Flatfoot Deformity

Condition: Acquired Adult Flatfoot Deformity · Flat Foot · Flexible Flatfoot  ·  Sponsor: Region Skane

PhasePhase 4
Planned participants130
Who can joinAll sexes, 16 Years to 75 Years
Healthy volunteersNo

About this study

Background: Adult acquired flatfoot deformity (AAFD) is a deformity of the foot which leads to pain and an altered gait pattern. There are several different surgical interventions available for treatment of AAFD. One of the most common treatments for mobile AAFD is medial displacement calcaneal osteotomy (MDCO) with or without adjuvant soft tissue procedures. However, the medial displacement of the calcaneus only aims to correct the deformity in one plane despite AAFD being a deformity of three planes with hypereversion of the calcaneus, anterior translation of the talus over the calcaneus and tilting/drop of the calcaneal head. Because of these multiple forces, the healing of MDCO in the intended position can sometimes be hard to achieve and medial soft tissue is still stressed leading to recurring deformity. The investigators believe that adjuvant insertion of a sinus tarsi implant (STI) could work as an internal splint, protecting soft tissue procedures on the medial side, reversing anterior translation of the talus, opposing calcaneus eversion, and lifting talar head. This additional procedure will create a better correction of the deformity with enhanced appearance of the foot and better long-term functional results. Methods: This is a multi-center randomized controlled trial designed to assess the efficacy of STI as an adjuvant procedure to MDCO in patients with mobile AAFD (Stage II). Patients aged 16 to 75 years, referred to one of the orthopedic centers involved in …

This description comes directly from the study's public registry record.

Talk to the study team

Ida Osbeck, MD  ·  +46 708 49 73 79  ·  ida.osbeck@skane.se

Isam Atroshi, MD, PhD  ·  +46 44 309 12 60  ·  isam.atroshi@skane.se

Always discuss trial participation with your own doctor first.

Locations (10)

Department of Orthopedics - Hässleholm HospitalHässleholm, Skåne County, SwedenRecruiting
Department of Orthopedics - Skåne University Hospital MalmöMalmö, Skåne County, SwedenNot Yet Recruiting
Capio Ortho CenterMalmö, Skåne County, SwedenRecruiting
Capio Ortho Center GöteborgGothenburg, Västra Götaland County, SwedenRecruiting
Department of Orthopedics - Eksjö HospitalEksjö, SwedenNot Yet Recruiting
Department of Orthopedics - Falun HospitalFalun, SwedenNot Yet Recruiting
Department of Orthopedics - Sahlgrenska University HospitalMölndal, SwedenNot Yet Recruiting
Department of Orthopedics - Östersund HospitalÖstersund, SwedenRecruiting
Department of Orthopedics - Uppsala University HospitalUppsala, SwedenRecruiting
Department of Orthopedics - VäxjöVaxjo, SwedenNot Yet Recruiting

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Source record: clinicaltrials.gov/study/NCT06211504