2019 ISAKOS Biennial Congress ePoster #660
Chitin-Based Scaffolding with Microfracture versus Microfracture Alone for the Treatment of Acetabular Defects: Two Year Outcomes
Rakesh John, MBBS, MS, DNB, MRCS(Eng), Dip SICOT, MNAMS, Halifax, NS CANADA
Ivan Wong, MD, FRCSC, MACM, Dip. Sports Med, Halifax, NS CANADA
Dalhousie University and Nova Scotia Health Authority, Halifax, NS, CANADA
The FDA has not cleared the following pharmaceuticals and/or medical device for the use described in this presentation. The following pharmaceuticals and/or medical device are being discussed for an off-label use: Smith and Nephew, BST - CarGel
Evaluation of the short-term clinical outcomes of patients treated arthroscopically with chitin-based scaffolding for acetabular chondral defects in conjunction with microfracture compared to microfracture alone
To evaluate the short-term clinical outcomes of patients treated arthroscopically with chitin-based scaffolding for acetabular chondral defects in conjunction with microfracture compared to microfracture alone.
This study is a retrospective analysis of prospectively collected data. A review of charts was performed (2014-2016) on all patients who underwent hip arthroscopy and had microfracture +/- scaffolding for acetabular chondral defects; intraoperative details (lesion size, grade, labral repair/reconstruction) and postoperative complications were recorded with a minimum follow-up of 2 years. Clinical outcomes were assessed by analysing iHOT and HOS scores which were obtained pre-operatively, at six months, one year and two years post-surgery. Plain radiographs were assessed for hip osteoarthritis by Kellgren & Lawrence grading.
A total of 60 patients (microfracture=25, scaffolding=35) were included. Patients had a mean age of 36.2 years at the time of the index operation. There were no major adverse events of deep vein thrombosis, blood vessel or nerve damage, hemarthrosis or device related adverse events in both groups. Two patients were readmitted due to pain as a result of an inflammatory reaction in the scaffolding group. Both treatments of microfracture and scaffolding showed significant improvement in outcome score (iHOT) (p<0.001) when compared postoperative to preoperative.
Both the arthroscopic treatment of chondral acetabular defects with chitin based scaffolding and microfracture demonstrated significant improvement from their pre-operative outcomes.