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Published on: January 23, 2018
MRI-guided percutaneous retrograde drilling of osteochondritis dissecans of the talus: a feasibility study
Pekka Kerimaa1, Risto Ojala, Juha-Jaakko Sinikumpu
1Department of Radiology, Oulu University Hospital, P.O. Box 50, 90029, OYS, Oulu, Finland, pekka.kerimaa@ppshp.fi.
Objectives:
The purpose of this study was to evaluate the feasibility of MRI guidance for percutaneous retrograde drilling in the treatment of osteochondritis dissecans of the talus (OCDT).
Methods:
Four patients, one juvenile and three adults, with one OCDT lesion each and persisting ankle pain after conservative treatment, were treated with MRI-guided retrograde drilling. All lesions were stable and located in the middle or posterior medial third of the talar dome. Pain relief and the ability to return to normal activities were assessed during clinical follow-up. MRI and plain film radiographs were used for imaging follow-up.
Results:
Technical success was 100% with no complications and with no damage to the overlying cartilage. All patients experienced some clinical benefit, although only one had complete resolution of pain and one had a relapse leading to surgical treatment. Changes in the pathological imaging findings were mostly very slight during the follow-up period.
Conclusions:
MRI guidance seems accurate, safe and technically feasible for retrograde drilling of OCDT. Larger series are needed to reliably assess its clinical value.
Key Points:
• MRI serves as a useful guidance method for numerous mini-invasive applications. • Retrograde drilling is a cartilage-sparing alternative in the treatment of osteochondritis dissecans. • MRI guidance seems feasible for treatment of osteochondritis dissecans of the talus.
