Ramon Gheno1, Young Cheol Yoon2, Joon H Wang3, Kyunga Kim4, Sun-Y Baek4. 1. 1 Instituto de Radiodiagnóstico Rio Preto (Ultra-X), São José do Rio Preto, Brazil. 2. 2 Department of Radiology, Samsung Medical Center, Sungkyunkwan University, Seoul, Republic of Korea. 3. 3 Department of Orthopaedic Surgery, Samsung Medical Center, Sungkyunkwan University, Seoul, Republic of Korea. 4. 4 Department of Biostatistics and Clinical Epidemiology, Samsung Medical Center, Seoul, Republic of Korea.
Abstract
OBJECTIVE: To evaluate T2 relaxation values (T2RVs) of knee joint cartilage after double-bundle anterior cruciate ligament reconstruction (DB-ACLR) in a 6-month follow-up and to correlate changes between T2RVs with meniscal status and clinical findings. METHODS: 27 patients who underwent DB-ACLR and MRI before and 6 months after surgery, and 27 control subjects were enrolled. We compared T2RVs of the control vs pre-operative MR and pre-operative vs post-operative MR using 28 subcompartments, including superficial and deep layers. Correlations between T2RV changes with meniscal status and clinical data were examined. RESULTS: The pre-operative T2RV was significantly higher than that of the control group in the medial tibia (posterior-superficial), posterior medial femur (superficial) and posterior lateral femur (superficial and deep). The post-operative T2RV was significantly higher than that of pre-operative T2RV in the posterior medial femur (superficial), medial tibia (anterior-deep and central-deep), lateral femur (anterior-deep, anterior-superficial and central-superficial) and posterior medial femur (deep). Moderate positive correlations between pre-operative and post-operative T2RV changes were found at the posterior medial femur (interval between injury and MR examination, and instability) and posterior lateral femur (Lysholm score). CONCLUSION: Patients with anterior cruciate ligament injury followed by DB-ACLR presented short-term subcompartment T2RV changes at the medial femur, lateral femur and medial tibia. Meniscal status did not affect T2RV; however, clinical findings influenced T2RV at the posterior grooves of the medial and lateral femoral condyles. ADVANCES IN KNOWLEDGE: Patients submitted to DB-ACLR presented T2RV changes in both femoral and medial tibial condyles 6 months after the surgery, affecting not just the weight-bearing areas, but also the less-weight-bearing areas.
OBJECTIVE: To evaluate T2 relaxation values (T2RVs) of knee joint cartilage after double-bundle anterior cruciate ligament reconstruction (DB-ACLR) in a 6-month follow-up and to correlate changes between T2RVs with meniscal status and clinical findings. METHODS: 27 patients who underwent DB-ACLR and MRI before and 6 months after surgery, and 27 control subjects were enrolled. We compared T2RVs of the control vs pre-operative MR and pre-operative vs post-operative MR using 28 subcompartments, including superficial and deep layers. Correlations between T2RV changes with meniscal status and clinical data were examined. RESULTS: The pre-operative T2RV was significantly higher than that of the control group in the medial tibia (posterior-superficial), posterior medial femur (superficial) and posterior lateral femur (superficial and deep). The post-operative T2RV was significantly higher than that of pre-operative T2RV in the posterior medial femur (superficial), medial tibia (anterior-deep and central-deep), lateral femur (anterior-deep, anterior-superficial and central-superficial) and posterior medial femur (deep). Moderate positive correlations between pre-operative and post-operative T2RV changes were found at the posterior medial femur (interval between injury and MR examination, and instability) and posterior lateral femur (Lysholm score). CONCLUSION:Patients with anterior cruciate ligament injury followed by DB-ACLR presented short-term subcompartment T2RV changes at the medial femur, lateral femur and medial tibia. Meniscal status did not affect T2RV; however, clinical findings influenced T2RV at the posterior grooves of the medial and lateral femoral condyles. ADVANCES IN KNOWLEDGE: Patients submitted to DB-ACLR presented T2RV changes in both femoral and medial tibial condyles 6 months after the surgery, affecting not just the weight-bearing areas, but also the less-weight-bearing areas.
Authors: Guoan Li; Jeremy M Moses; Ramprasad Papannagari; Neil P Pathare; Louis E DeFrate; Thomas J Gill Journal: J Bone Joint Surg Am Date: 2006-08 Impact factor: 5.284
Authors: Richard Kijowski; Donna G Blankenbaker; Alejandro Munoz Del Rio; Geoffrey S Baer; Ben K Graf Journal: Radiology Date: 2013-01-07 Impact factor: 11.105
Authors: Michel D Crema; Frank W Roemer; Monica D Marra; Deborah Burstein; Garry E Gold; Felix Eckstein; Thomas Baum; Timothy J Mosher; John A Carrino; Ali Guermazi Journal: Radiographics Date: 2011 Jan-Feb Impact factor: 5.333
Authors: Hugues Louboutin; R Debarge; J Richou; Tarik Ait Si Selmi; Simon T Donell; Philippe Neyret; F Dubrana Journal: Knee Date: 2008-12-20 Impact factor: 2.199
Authors: Kai-Jonathan Maas; Maxim Avanesov; Azien Laqmani; Julius Weinrich; Markus Sauer; Michael G Kaul; Gerhard Adam; Marc Regier; Cyrus Behzadi Journal: PLoS One Date: 2018-08-22 Impact factor: 3.240
Authors: Gregorio Marchiori; Giorgio Cassiolas; Matteo Berni; Alberto Grassi; Giacomo Dal Fabbro; Milena Fini; Giuseppe Filardo; Stefano Zaffagnini; Nicola Francesco Lopomo Journal: Life (Basel) Date: 2021-12-10