R Best1, S Hingelbaum2, J Huth3, F Mauch3. 1. Department of Orthopaedic Sports Medicine, University of Tuebingen, Hoppe Seyler Strasse 6, 72076, Tuebingen, Germany. Raymond.Best@med.uni-tuebingen.de. 2. Department of Orthopaedics, Diakonie Klinikum Schwäbisch Hall, Diakoniestrasse 10, 74523, Schwäbisch Hall, Germany. 3. Department of Orthopaedics, Sportklinik Stuttgart GmbH, Taubenheimstraße 8, 70372, Stuttgart, Germany.
Abstract
PURPOSE: Purpose of this study was to establish and validate an MRI-associated classification to graduate postoperative results of MPFL reconstructions. METHODS: 30 autologous MPFL reconstructions of 28 patients were evaluated by two independent raters using MRI. All grafts were assigned to a novel graduation system respecting the graft's anchoring insertions, its MRI signal appearance, continuity and tension and the differentiation relating to the surrounding soft tissue. RESULTS: All grafts could reliably be assigned to one of the subgroups by both raters. 86.6 % of the grafts could be classified A1 or B1, reflecting a correct positioning and a low to intermediate signal intensity. Only one graft had to be classified C3 (malpositioned, elongated). CONCLUSION: We were able to establish and validate an MRI-associated classification to graduate the postoperative outcome after MPFL reconstructions. Foresighted, the presented classification might support further decision making in case of unsatisfying postoperative results.
PURPOSE: Purpose of this study was to establish and validate an MRI-associated classification to graduate postoperative results of MPFL reconstructions. METHODS: 30 autologous MPFL reconstructions of 28 patients were evaluated by two independent raters using MRI. All grafts were assigned to a novel graduation system respecting the graft's anchoring insertions, its MRI signal appearance, continuity and tension and the differentiation relating to the surrounding soft tissue. RESULTS: All grafts could reliably be assigned to one of the subgroups by both raters. 86.6 % of the grafts could be classified A1 or B1, reflecting a correct positioning and a low to intermediate signal intensity. Only one graft had to be classified C3 (malpositioned, elongated). CONCLUSION: We were able to establish and validate an MRI-associated classification to graduate the postoperative outcome after MPFL reconstructions. Foresighted, the presented classification might support further decision making in case of unsatisfying postoperative results.