Mid-Term Clinical and MRI Results after Refixation of Osteochondral Fractures with Resorbable Implants

Aim: Refixation of osteochondral fractures with resorbable implants is a common surgical treatment. There are almost no studies that prove good clinical outcomes. Hence, the aim of the study was to evaluate the mid-term results after refixation of osteochondral fractures. Methods: The results of 12 patients were recorded 6.5 (+/- 1) years after refixation of osteochondral fractures measuring 3.4 cm(2) (+/- 2.5) of the knee (8x) or the ankle joint (4x) with resorbable inplants. Clinical scores and a modified MRI score based on that of Henderson et al. were used. Results: The clinical scores showed good to excellent results after 6.5 (+/- 1) years (VAS pain: 1.9 [+/- 2.4], Tegner: 5.0 [+/- 1.7], Lysholm: 84.8 [+/- 14.3], McDermott: 91.3 [+/- 7.9], Knee Society: 189.4 [+/- 12.1]). MRI showed with one exception good integration of the fractures. In 3 cases subchondral cysts could be found. In 7 cases changes in the chondral outline occurred. The effect of this was a modified Henderson score of 12.6 (+/- 3.7). The MRI results did not correlate with the clinical outcome. Conclusion: Because of its good clinical results the refixation with resorbable implants can be recommended to treat osteochondral fractures.