Medial malleolar fixation with bioabsorbable magnesium screws; a retrospective study with a mean follow-up of 5 years Bioresorbierbare Magnesiumschrauben zur Fixierung des Innenknöchels: eine retrospektive Studie mit einer durchschnittlichen Nachbeobachtungszeit von 5 Jahren
Fuss und Sprunggelenk, cilt.21, sa.4, ss.359-370, 2023 (Scopus)
- Yayın Türü: Makale / Tam Makale
- Cilt numarası: 21 Sayı: 4
- Basım Tarihi: 2023
- Doi Numarası: 10.1016/j.fuspru.2023.08.002
- Dergi Adı: Fuss und Sprunggelenk
- Derginin Tarandığı İndeksler: Scopus, EMBASE
- Sayfa Sayıları: ss.359-370
- Anahtar Kelimeler: Ankle fractures, Bioabsorbable implants, Biodegradable implants, Functional outcome, Magnesium screws
- Sağlık Bilimleri Üniversitesi Adresli: Evet
Özet
Background: This retrospective study aimed to investigate the mid-term clinical and radiological results of medial malleolar fixation with bioabsorbable magnesium screws. Methods: 44 patients who underwent a medial malleolar fixation for either fracture or osteotomy with magnesium bioabsorbable compression screws between 2015 and 2020 were retrospectively reviewed. Medial malleolar osteotomy was used for cartilage restorative procedures of talus osteochondral lesions (TOL), and biplanar chevron osteotomy was performed in all of them. Clinical results were evaluated using the American Orthopedic Foot and Ankle Society (AOFAS) scale during the final follow-up. Bone healing, loss of reduction, gas formation, implant failure, and resorption were examined through available serial radiographs. All complications were also documented and reported. Results: Patients were followed with a mean of 61.3 ± 20.2 months (range 27–94). The mean AOFAS score at the final clinical follow-up was 91.6 ± 10.3 points (range 52–100). The postoperative AOFAS score significantly improved in TOL cases compared to preoperative scores (p: 0.001, 46.4 ± 15.0, and 89.1 ± 11.2, respectively). The final radiographic examination showed no signs of ankle osteoarthritis in 36 patients (Grade 0) and Grade I ankle osteoarthritis in eight. Only one patient had a nonunion and was revised with titanium screws. Another patient had early screw breakage but recovered without intervention. Conclusions: This is the first study that reports the mid-term results of Mg bioabsorbable screws in the current literature. The findings in the present study indicate that Mg bioabsorbable screw fixation might be a good alternative for medial malleolar fracture or osteotomy fixation with a high rate of union and low rate of complications. Besides, it eliminates the need for implant removal. Level of evidence: Level IV, therapeutic, retrospective case series.