To establish whether a hamstring ACL reconstruction graft changes in appearance on MRI between 1 and 2 years, and whether it affects a patient’s ability to return to sport.

Methods

Patients with a hamstring autograft ACL reconstruction using adjustable suspensory fixation had MRI and clinical outcome measures at 1 and minimum 2 years. Signal intensity ratio (SIR) at multiple areas using oblique reconstructions both parallel and perpendicular with the graft were calculated alongside tunnel aperture sizes. Clinical outcome was side to side anterior laxity, and patient reported outcome measures (PROMs).

Results

Forty-two patients had full datasets. At 1 year the mean SIR for the graft was 2.7 +/- 1.2, with proximal graft signal significantly higher than distal. Overall, there was no significant change at by 2 years apart from those with the highest proximal graft signal (SIR > 4) at 1 year. This group had a reduction in signal and were also most likely to have a reduction in tunnel aperture area. The finding of tunnel aperture area reduction between 1 and 2 years was significant across the full cohort (mean tibial -6.9mm2, p< 0.001, mean femoral -13.5mm2, p< 0.001). A high patient sporting level was seen, with a median Tegner activity score of 6 [5-10], with a third of patients scoring either a 9 or 10. Overall, PROMs were not affected by MRI appearance.

Conclusions

In the majority of patients graft signal does not change after one year. However, a significant reduction is seen in those with high signal at one year. Tunnel contraction correlates with a reduction in graft SIR suggesting this could be a useful measure of graft integration.

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A Comparison of Lower Limb Strength and Plyometric Ability in Athletes who underwent ACLR with Lateral Extra-Articular Ilio-Tibial Band Tenodesis when compared with Isolated ACLR Surgery. A Biomechanical Study. Abstract Presentation 7 minutes Bláithín Brady, BSc MSc , IRELAND Sarah Crosbie, BSc, IRELAND Neil Welch, BSc MSc PhD, IRELAND Mihai Vioreanu, MD, MCh, FFSEM, FRCSI(Tr&Orth), IRELAND
Posterior Tibial Plateau Impaction Fractures Are Not Associated With Increased Knee Instability: A Quantitative Pivot Shift Analysis Abstract Presentation 8 minutes Brian M Godshaw, MD, UNITED STATES Joshua C Setliff, BA, UNITED STATES Jonathan D Hughes, MD, PhD, UNITED STATES Volker Musahl, MD, Prof., UNITED STATES
Increased Osteoarthritis And Knee Instability Following Postoperative Septic Knee Arthritis After Anterior Cruciate Ligament Reconstruction with a Minimum 8 Year Follow-Up ePoster Presentation Thomas R. Pfeiffer, Prof., GERMANY Julius Stüber, cand. med., GERMANY Jan-Hendrik Naendrup, BS, MD, GERMANY Daniel Guenther, MD, Prof., FACS, MHBA, GERMANY Robin Otchwemah, MD, GERMANY Sven T. Shafizadeh, Prof. Dr. , GERMANY Paola Kappel, MD, GERMANY Arasch Wafaisade, PD, GERMANY Sebastian Imach, MD, MBA, GERMANY
Clinical Outcomes Of Primary Acl Reconstruction With Tibial Attachment Preserving Quadrupled Hamstring Graft: Does Graft Size Matter? - A Prospective Study With Review Of Literature Abstract Presentation 5 minutes Shaival Dalal, M.S.MRCS(Edinburgh), UNITED KINGDOM Ghislain N. Aminake, MBBS, MMed(Ortho),MRCPS(Glasg), CAMEROON Randy Guro, BSc, UNITED KINGDOM Amit Pramod Chandratreya, FRCS(Tr&Orth), MS(Orth), MCh(Orth), UNITED KINGDOM Rahul Kotwal, FRCS(Ortho), UNITED KINGDOM
Higher Return To Pre-Injury Activity Levels Following ACL Reconstruction With Bone-Patellar Tendon-Bone Versus Hamstring Tendon Autograft In High Activity Patients: Results From The New Zealand ACL Registry Abstract Presentation 6 minutes Simon W. Young, MD, FRACS, NEW ZEALAND Richard Rahardja, MBChB, BMedSc(Hons), NEW ZEALAND Mark G. Clatworthy, FRACS, NEW ZEALAND Paul Monk, DPhil (Oxon), FRCS, NEW ZEALAND Hamish Love, FRACS, NEW ZEALAND
Effect Of Graft Choice On 6-Year Outcomes Of Revision Anterior Cruciate Ligament Reconstruction In The Multicenter ACL Revision Study (Mars) Cohort Abstract Presentation 6 minutes Rick W. Wright, MD, UNITED STATES

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MRI After ACL Reconstruction Demonstrates that Hamstring Grafts Heal and Integrate at Different Rates

MRI After ACL Reconstruction Demonstrates that Hamstring Grafts Heal and Integrate at Different Rates

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MRI After ACL Reconstruction Demonstrates that Hamstring Grafts Heal and Integrate at Different Rates

MRI After ACL Reconstruction Demonstrates that Hamstring Grafts Heal and Integrate at Different Rates

Purpose

Methods

Results

Conclusions

More ISAKOS 2021: Global Content