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Clinical and MRI outcomes of HA injection following arthroscopic microfracture for osteochondral lesions of the talus
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Clinical and MRI outcomes of HA injection following arthroscopic microfracture for osteochondral lesions of the talus
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Clinical and MRI outcomes of HA injection following arthroscopic microfracture for osteochondral lesions of the talus
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Journal Article
Clinical and MRI outcomes of HA injection following arthroscopic microfracture for osteochondral lesions of the talus
2016
Overview
Purpose
The purpose of this study was to compare the clinical and magnetic resonance imaging (MRI) outcomes of arthroscopic microfracture surgery alone or in combination with hyaluronic acid (HA) injection in the treatment of osteochondral lesions of the talus.
Methods
Thirty-five patients with osteochondral lesions of the talus who underwent arthroscopic microfracture were included and followed up for at least 9 months post-operatively. The patients were randomly divided into non-injection group (
n
= 17) who received treatment with microfracture surgery alone and injection group (
n
= 18) who also accepted intra-articular injection of HA post-operatively. Quantitative MRI was used to evaluate the cartilage repair after surgery. American Orthopaedic Foot and Ankle Society (AOFAS) Ankle-Hind foot Scale scores and Visual Analogue Scale (VAS) scores were used to evaluate clinical outcomes.
Results
After operation, the MRI outcomes showed that the thickness index was higher (0.8 ± 0.1 vs. 0.7 ± 0.1) and the T2 index was lower (1.2 ± 0.1 vs. 1.4 ± 0.1) in the injection group than in the non-injection group (
P
< 0.01). As for the volumes of subchondral bone marrow oedema, there are no significant differences between groups (n.s.). Compared with the non-injection group, the AOFAS score and the VAS score yielded a higher level of improvement in injection group at final follow-up post-operatively (
P
< 0.05).
Conclusions
Arthroscopic microfracture is a safe and effective procedure for osteochondral lesions of the talus. Intra-articular HA injection as an adjunct to arthroscopic microfracture might offer better functional recovery than microfracture alone.
Level of evidence
II.
Publisher
Springer Berlin Heidelberg,John Wiley & Sons, Inc
