Sophia Y Kim-Wang1,2, Melissa B Scribani3, Michael B Whiteside4, Louis E DeFrate1,2,5, Tally E Lassiter1, Jocelyn R Wittstein1. 1. Department of Orthopaedic Surgery, Duke University, Durham, North Carolina, USA. 2. Department of Biomedical Engineering, Duke University, Durham, North Carolina, USA. 3. Bassett Healthcare Network, Cooperstown, New York, USA. 4. StatRad, San Diego, California, USA. 5. Department of Mechanical Engineering and Materials Science, Duke University, Durham, North Carolina, USA.
Abstract
BACKGROUND: Bone contusions are commonly observed on magnetic resonance imaging (MRI) in individuals who have sustained a noncontact anterior cruciate ligament (ACL) injury. Time from injury to image acquisition affects the ability to visualize these bone contusions, as contusions resolve with time. PURPOSE: To quantify the number of bone contusions and their locations (lateral tibial plateau [LTP], lateral femoral condyle [LFC], medial tibial plateau [MTP], and medial femoral condyle [MFC]) observed on MRI scans of noncontact ACL-injured knees acquired within 6 weeks of injury. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: We retrospectively reviewed clinic notes, operative notes, and imaging of 136 patients undergoing ACL reconstruction. The following exclusion criteria were applied: MRI scans acquired beyond 6 weeks after injury, contact ACL injury, and previous knee trauma. Fat-suppressed fast spin-echo T2-weighted MRI scans were reviewed by a blinded musculoskeletal radiologist. The number of contusions and their locations (LTP, LFC, MTP, and MFC) were recorded. RESULTS: Contusions were observed in 135 of 136 patients. Eight patients (6%) had 1 contusion, 39 (29%) had 2, 41 (30%) had 3, and 47 (35%) had 4. The most common contusion patterns within each of these groups were 6 (75%) with LTP for 1 contusion, 29 (74%) with LTP/LFC for 2 contusions, 33 (80%) with LTP/LFC/MTP for 3 contusions, and 47 (100%) with LTP/LFC/MTP/MFC for 4 contusions. No sex differences were detected in contusion frequency in the 4 locations (P > .05). Among the participants, 50 (37%) had medial meniscal tears and 52 (38%) had lateral meniscal tears. CONCLUSION: The most common contusion patterns observed were 4 locations (LTP/LFC/MTP/MFC) and 3 locations (LTP/LFC/MTP).
BACKGROUND: Bone contusions are commonly observed on magnetic resonance imaging (MRI) in individuals who have sustained a noncontact anterior cruciate ligament (ACL) injury. Time from injury to image acquisition affects the ability to visualize these bone contusions, as contusions resolve with time. PURPOSE: To quantify the number of bone contusions and their locations (lateral tibial plateau [LTP], lateral femoral condyle [LFC], medial tibial plateau [MTP], and medial femoral condyle [MFC]) observed on MRI scans of noncontact ACL-injured knees acquired within 6 weeks of injury. STUDY DESIGN: Cross-sectional study; Level of evidence, 3. METHODS: We retrospectively reviewed clinic notes, operative notes, and imaging of 136 patients undergoing ACL reconstruction. The following exclusion criteria were applied: MRI scans acquired beyond 6 weeks after injury, contact ACL injury, and previous knee trauma. Fat-suppressed fast spin-echo T2-weighted MRI scans were reviewed by a blinded musculoskeletal radiologist. The number of contusions and their locations (LTP, LFC, MTP, and MFC) were recorded. RESULTS: Contusions were observed in 135 of 136 patients. Eight patients (6%) had 1 contusion, 39 (29%) had 2, 41 (30%) had 3, and 47 (35%) had 4. The most common contusion patterns within each of these groups were 6 (75%) with LTP for 1 contusion, 29 (74%) with LTP/LFC for 2 contusions, 33 (80%) with LTP/LFC/MTP for 3 contusions, and 47 (100%) with LTP/LFC/MTP/MFC for 4 contusions. No sex differences were detected in contusion frequency in the 4 locations (P > .05). Among the participants, 50 (37%) had medial meniscal tears and 52 (38%) had lateral meniscal tears. CONCLUSION: The most common contusion patterns observed were 4 locations (LTP/LFC/MTP/MFC) and 3 locations (LTP/LFC/MTP).
Entities:
Keywords:
anterior cruciate ligament injury; bone bruise; bone contusion; injury mechanism; magnetic resonance imaging
Authors: A J Maubon; J M Ferru; V Berger; M C Soulage; M DeGraef; P Aubas; P Coupeau; E Dumont; J P Rouanet Journal: Radiographics Date: 1999 Jul-Aug Impact factor: 5.333
Authors: Nicole Glynn; William B Morrison; Laurence Parker; Mark E Schweitzer; John A Carrino Journal: Skeletal Radiol Date: 2004-02-18 Impact factor: 2.199
Authors: Kwadwo A Owusu-Akyaw; Sophia Y Kim; Charles E Spritzer; Amber T Collins; Zoë A Englander; Gangadhar M Utturkar; William E Garrett; Louis E DeFrate Journal: Am J Sports Med Date: 2018-04-18 Impact factor: 6.202
Authors: Darius G Viskontas; Bruno M Giuffre; Naven Duggal; David Graham; David Parker; Myles Coolican Journal: Am J Sports Med Date: 2008-03-19 Impact factor: 6.202
Authors: Sophia Y Kim; Charles E Spritzer; Gangadhar M Utturkar; Alison P Toth; William E Garrett; Louis E DeFrate Journal: Am J Sports Med Date: 2015-08-11 Impact factor: 6.202