PURPOSE: The purpose of this study was to determine whether preoperative computed tomography (CT) of the ankle joint in full plantar flexion is a reliable and accurate tool to determine the anterior arthroscopic accessibility of talar osteochondral defects (OCDs). METHODS: Twenty consecutive patients were prospectively studied. All patients had an OCD of the talar dome and had a preoperative CT scan of the affected ankle in maximum plantar flexion. Accessibility of the OCD was defined by the distance between the anterior border of the OCD and the anterior distal tibial rim. This distance was measured on sagittal CT reconstructions by 2 investigators. The reference standard was the distance between the same landmarks measured during anterior ankle arthroscopy by an orthopaedic surgeon blinded to the CT scans. Intraobserver and interobserver reliability of CT, as well as the correlation and agreement between CT and arthroscopy, were calculated. RESULTS: The measured distance between the anterior border of the OCD and the anterior distal tibial rim ranged from -3.1 to 9.1 mm on CT and from -3.0 to 8.5 mm on arthroscopy. The intraobserver and interobserver reliability of the measurements made on CT scans (intraclass correlation coefficients >0.99, P < .001), as well as the correlation between CT and arthroscopy, were excellent (r = 0.98, P < .001). CONCLUSIONS: Measurements on CT scans of the ankle in full plantar flexion are a reliable and accurate preoperative method to determine the in situ arthroscopic location of talar OCDs.
PURPOSE: The purpose of this study was to determine whether preoperative computed tomography (CT) of the ankle joint in full plantar flexion is a reliable and accurate tool to determine the anterior arthroscopic accessibility of talar osteochondral defects (OCDs). METHODS: Twenty consecutive patients were prospectively studied. All patients had an OCD of the talar dome and had a preoperative CT scan of the affected ankle in maximum plantar flexion. Accessibility of the OCD was defined by the distance between the anterior border of the OCD and the anterior distal tibial rim. This distance was measured on sagittal CT reconstructions by 2 investigators. The reference standard was the distance between the same landmarks measured during anterior ankle arthroscopy by an orthopaedic surgeon blinded to the CT scans. Intraobserver and interobserver reliability of CT, as well as the correlation and agreement between CT and arthroscopy, were calculated. RESULTS: The measured distance between the anterior border of the OCD and the anterior distal tibial rim ranged from -3.1 to 9.1 mm on CT and from -3.0 to 8.5 mm on arthroscopy. The intraobserver and interobserver reliability of the measurements made on CT scans (intraclass correlation coefficients >0.99, P < .001), as well as the correlation between CT and arthroscopy, were excellent (r = 0.98, P < .001). CONCLUSIONS: Measurements on CT scans of the ankle in full plantar flexion are a reliable and accurate preoperative method to determine the in situ arthroscopic location of talar OCDs.
Authors: Christian David Weber; Gino Kerkhoffs; Jari Dahmen; Dari Ush Arbab; Philipp Kobbe; Frank Hildebrand; Philipp Lichte Journal: Unfallchirurg Date: 2021-03-05 Impact factor: 1.000
Authors: G M M J Kerkhoffs; M L Reilingh; R M Gerards; P A J de Leeuw Journal: Knee Surg Sports Traumatol Arthrosc Date: 2014-05-20 Impact factor: 4.342
Authors: J Vega; F Malagelada; J Karlsson; G M Kerkhoffs; M Guelfi; M Dalmau-Pastor Journal: Knee Surg Sports Traumatol Arthrosc Date: 2019-10-30 Impact factor: 4.342
Authors: M L Reilingh; G M M J Kerkhoffs; C J A Telkamp; P A A Struijs; C N van Dijk Journal: Knee Surg Sports Traumatol Arthrosc Date: 2013-09-18 Impact factor: 4.342
Authors: Nazlı Tümer; Aimee C Kok; Frans M Vos; Geert J Streekstra; Christian Askeland; Gabrielle J M Tuijthof; Amir A Zadpoor Journal: Sensors (Basel) Date: 2018-07-21 Impact factor: 3.576