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Biphasic bioresorbable scaffold (TruFit(®)) in knee osteochondral defects: 3-T MRI evaluation of osteointegration in patients with a 5-year minimum follow-up.

Research paper by G G Bugelli, F F Ascione, G G Dell'Osso, V V Zampa, S S Giannotti

Indexed on: 23 Nov '17Published on: 23 Nov '17Published in: MUSCULOSKELETAL SURGERY



Abstract

The aim of this study is to follow morphological imaging characteristics and osteointegration of TruFit(®) bone graft substitute (BGS) plugs in cases of chondral and osteochondral defects of the articular surface of the knee joint, using high-quality cartilage-sensitive 3-T magnetic resonance imaging (MRI), linked to clinical outcomes.The MRI was used to assess osteointegration and biological evolution of the TruFit(®) BGS plugs in cases with minimum 5-year follow-up: The TruFit(®) plug was used in 46 patients for a total of 47 cases with mean age of 57.89 (range 32-80). In this study, we reviewed only the cases with minimum follow-up of 5 years: 5 patients with mean age 64.4 years (minimum 38, maximum 80). The mean follow-up was 71 months (range 63-77). Patients were evaluated clinically, with Lysholm Knee Scoring Scale and MOCART Scale.3-T MRI, which is preferable to 1.5 T for the better signal-to-noise ratio, contrast and the ability to acquire morphological images at higher spatial resolution, shows a satisfactory integration of bone scaffolds in studied cases for more than 5 years and a satisfactory restoration of the articular cartilage, with the exception of a case of which we still have to consider the factors age, type of lesion and the relationship between the plugs implanted.Clinical and radiological results significantly improve in a longer follow-up time.