2015 ISAKOS Biennial Congress ePoster #128

Comparison of Arthroscopic Microfracture for Osteochondral Lesions of the Talus With and Without Subchondral Cyst

Keun-Bae Lee, MD, PhD, Gwangju KOREA, REPUBLIC OF
Hyung-Won Park, MD, Kwangju KOREA, REPUBLIC OF
Seung-Hun Lee, MD, Gwang-Ju KOREA, REPUBLIC OF

Chonnam National University Hospital, Gwangju, KOREA

FDA Status Not Applicable

Summary: Arthroscopic microfracture could be a primary treatment strategy for small to mid-sized osteochondral lesion of talus with subchondral cyst

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Abstract:

Summary:
Few comprehensive study have been conducted on the outcome comparison of microfracture for osteochondral lesion of talus(OLT) with and without subchondral cyst. The purpose of this study was to compare the clinical outcomes after microfracture of OLT with and without subchondral cyst. Microfracture for OLT with and without subchondral cyst showed similar good clinical results. Our results suggest that the arthroscopic microfracture could be a primary treatment strategy for small to mid-sized OLT with subchondral cyst

Introduction

The outcomes of microfracture for osteochondral lesion of the talus (OLT) with subcondral cyst remains still controversial. However, few comprehensive study have been conducted on the outcome comparison of microfracture for OLT with and without subchondral cyst. The purpose of this study was to compare the clinical outcomes after microfracture of OLT with and without subchondral cyst.

Methods

The 102 patients(102 ankles) who underwent arthroscopic microfracture for the small to mid-sized OLT constituted the study cohort. The 102 ankles were divided into two groups, namely, a cyst group(45 ankles) and non-cyst group(57 ankles). AOFAS ankle-hindfoot scale, Visual Analogue Scale(VAS), and Ankle Activity Score(AAS) were used to compare the clinical outcomes, during the follow-up period of mean 48 months.

Results

Mean AOFAS scores improved from a mean 64.8 points preoperatively to 91.8 points at the final follow-up in cyst group and from 66.2 points preoperatively to 91.3 points at the final follow-up in non-cyst group. The mean VAS in cyst group and non-cyst group was reduced from 7.5 and 7.3 preoperatively to 2.3 and 2.2 respectively, at the time of final follow-up. The mean AAS in non-cyst groups and cyst group was increased from 2.7 and 2.6 preoperatively to 6.7 and 6.5 respectively, at the final follow-up.

Conclusion

Microfracture for OLT with and without subchondral cyst showed similar good clinical results. Our results suggest that the arthroscopic microfracture could be a primary treatment strategy for small to mid-sized OLT with subchondral cyst.