Lesion Size Measured on MRI Does Not Accurately Reflect Arthroscopic Measurement in Talar Osteochondral Lesions

Orthopaedic Journal of Sports Medicine
Youichi YasuiJohn G Kennedy

Abstract

Lesion size is a major determinant of treatment strategy for osteochondral lesions of the talus (OLTs). Although magnetic resonance imaging (MRI) is commonly used in the preoperative evaluation of OLTs, the reliability of the MRI measurement compared with the arthroscopic measurement is unknown. To compare preoperative lesion size measured on MRI versus intraoperative lesion size measured during arthroscopy. Cohort study (diagnosis); Level of evidence, 2. We retrospectively reviewed a consecutive series of patients treated with bone marrow stimulation for OLTs. The diameter of the lesion was measured at its widest point in 2 planes, and MRI measurements were compared with those made during arthroscopy using a custom-made graduated probe. A total of 39 patients with 45 OLTs were analyzed. Mean ± SD area measurements on MRI were significantly greater than the equivalent arthroscopic measurements (42.2 ± 30.5 vs 28.6 ± 23.1 mm2, respectively; P = .03). Compared with the arthroscopic measurement, MRI overestimated OLT size in 53.3% (24/45) of ankles and underestimated OLT size in 24.4% (11/45). The mean MRI diameter measurement was significantly greater than the arthroscopic measurement in the coronal plane (MRI diameter vs arthros...Continue Reading

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Citations

Feb 13, 2020·Knee Surgery, Sports Traumatology, Arthroscopy : Official Journal of the ESSKA·Tobias StornebrinkGino M M J Kerkhoffs
Jan 26, 2021·Foot and Ankle Clinics·Quinten G H Rikken, Gino M M J Kerkhoffs
Feb 7, 2020·Journal of Orthopaedics·Matthew J HartwellVehniah K Tjong
Mar 5, 2021·The American Journal of Sports Medicine·Jae Han ParkJin Woo Lee
May 18, 2020·Foot and Ankle Surgery : Official Journal of the European Society of Foot and Ankle Surgeons·Brijesh AyyaswamyRajiv Limaye
Jun 16, 2021·Skeletal Radiology·Júlio Brandão GuimarãesMarcelo Astolfi Caetano Nico

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