Žiga Snoj1, Oskar Zupanc2, Klemen Stražar2, Vladka Salapura3. 1. Institute of Radiology, University Medical Centre Ljubljana, Zaloška 7, 1000, Ljubljana, Slovenia. ziga.snoj@gmail.com. 2. Department of Orthopaedic Surgery of the Ljubljana University Medical Centre, Zaloška 9, 1000, Ljubljana, Slovenia. 3. Institute of Radiology, University Medical Centre Ljubljana, Zaloška 7, 1000, Ljubljana, Slovenia.
Abstract
INTRODUCTION: There is no evidence that anatomically correct anterior cruciate ligament reconstruction (ACLR) offers lower rate of degenerative changes development or that it would lead to a better outcome. The significance and understanding of the abnormal anterior tibial translation (ATT) in ACLR patients is yet to be established. METHODS: Sixty subjects (40 patients at 5.9 years after ACLR, 20 healthy controls) underwent 3 T MRI. Quantitative cartilage T2 mapping and morphological whole organ magnetic resonance imaging score (WORMS) evaluation was performed. Self-reported questionnaires were used for subjective clinical evaluation. Correlations were calculated with the following MRI measurements; femoral tunnel inclination, ACL graft inclination, lateral and medial compartment ATT. RESULTS: In the ACLR group positive correlation was found between the patellar cartilage T2 values and sagittal ACL graft inclination. In the ACLR group lateral compartment ATT showed negative correlation with ACL graft inclination and subjective clinical evaluation, and positive correlation with morphological degenerative changes. Femoral tunnel showed positive correlation with ACL graft inclination in the same plane. CONCLUSIONS: Increased ATT offers worse clinical outcome and increased rate of degenerative changes. Furthermore, ATT is affected by the ACL inclination. Inclination of the drilling tunnel affects ACL graft inclination; thereby independent drilling techniques provide superior results of anatomical ACL graft positioning.
INTRODUCTION: There is no evidence that anatomically correct anterior cruciate ligament reconstruction (ACLR) offers lower rate of degenerative changes development or that it would lead to a better outcome. The significance and understanding of the abnormal anterior tibial translation (ATT) in ACLR patients is yet to be established. METHODS: Sixty subjects (40 patients at 5.9 years after ACLR, 20 healthy controls) underwent 3 T MRI. Quantitative cartilage T2 mapping and morphological whole organ magnetic resonance imaging score (WORMS) evaluation was performed. Self-reported questionnaires were used for subjective clinical evaluation. Correlations were calculated with the following MRI measurements; femoral tunnel inclination, ACL graft inclination, lateral and medial compartment ATT. RESULTS: In the ACLR group positive correlation was found between the patellar cartilage T2 values and sagittal ACL graft inclination. In the ACLR group lateral compartment ATT showed negative correlation with ACL graft inclination and subjective clinical evaluation, and positive correlation with morphological degenerative changes. Femoral tunnel showed positive correlation with ACL graft inclination in the same plane. CONCLUSIONS: Increased ATT offers worse clinical outcome and increased rate of degenerative changes. Furthermore, ATT is affected by the ACL inclination. Inclination of the drilling tunnel affects ACL graft inclination; thereby independent drilling techniques provide superior results of anatomical ACL graft positioning.
Authors: Mininder S Kocher; J Richard Steadman; Karen K Briggs; William I Sterett; Richard J Hawkins Journal: Am J Sports Med Date: 2004 Apr-May Impact factor: 6.202
Authors: Bryan Haughom; William Schairer; Richard B Souza; Dana Carpenter; C Benjamin Ma; Xiaojuan Li Journal: Knee Date: 2011-07-31 Impact factor: 2.199
Authors: C G Peterfy; A Guermazi; S Zaim; P F J Tirman; Y Miaux; D White; M Kothari; Y Lu; K Fye; S Zhao; H K Genant Journal: Osteoarthritis Cartilage Date: 2004-03 Impact factor: 6.576
Authors: Alexander A Theologis; Bryan Haughom; Fei Liang; Yu Zhang; Sharmila Majumdar; Thomas M Link; C Benjamin Ma; Xiaojuan Li Journal: Knee Surg Sports Traumatol Arthrosc Date: 2013-01-31 Impact factor: 4.342
Authors: Mitchell Stephen Fourman; Sherif Galal Hassan; James W Roach; Jan S Grudziak Journal: Knee Surg Sports Traumatol Arthrosc Date: 2021-04-03 Impact factor: 4.342
Authors: Andrea Ferretti; Edoardo Monaco; Antonio Ponzo; Matthew Dagget; Matteo Guzzini; Daniele Mazza; Andrea Redler; Fabio Conteduca Journal: Int Orthop Date: 2018-10-01 Impact factor: 3.075