Medial Opening-Wedge High Tibial Osteotomy (MOWHTO) affects the medial compartment positively on arthroscopy and MRI in short term. Middle- to long-term effects are not clear. The purpose was to evaluate the effects of MOWHTO on the meniscus and cartilage of the medial compartment on MRI for up to 9 years.

Methods

Subjects were 24 knees that underwent MOWHTO for osteoarthritis and osteonecrosis, including 5 knees combined microfracture, 7 knees combined with medial meniscus partial resection for flap degenerative injury, and 5 all MMPRT were not treated. We evaluated X-rays and serial MRIs. The MRI was performed pre-operation, early-term (1-2 years), and mid-term (5-9 years) postoperatively. We evaluated the MOCART score, the T2 relaxation times of each cartilage, and the extrusion of the medial meniscus (MME).

Results

The X-ray course was as follows, preoperative %MA 32% mid-term 62%, MPTA 85 degrees before surgery, and 92 degrees in the middle term. The MOCART score was kept from the early to the middle term. The score was the lowest in the combination with MF. ‘Volume score’ was lower in MF and meniscus resection. ‘Subchondral bone score’ was the lowest in the MF group. T2 relaxation times in the medial femoral condyle and tibial plateau decreased statistically (P < .05). In MOWHTO combined with MF, both the femur and tibia tended to deteriorate toward the middle term. There were no statistical differences in MME, while two cases were improved. The amount of MME was 5.9±1.7mm in pre-operation, 6.7±3.4mm in the early term, and 7.3±2.5 mm in the middle term, when a partial meniscectomy was performed. Each MME amount was 3.6±2.1 in pre-operation, 4.9±1.8 in the early term, and 4.3±3.3mm in the middle term, when the meniscus was unresected.

Conclusion

Mid-term MRI images were evaluated. MOWHTO has a positive effect on the medial cartilage and meniscus, but it has not been sufficiently repaired on the MRI. When a meniscectomy was performed, MME tended to progress. Reconstruction of cartilage and meniscus can be expected to improve the long-term evaluation of osteotomy.

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Popliteomeniscal Fascicles Tears with Lateral Meniscus Instability: Outcomes of Arthroscopic Surgical Technique at Mid-Term Follow-Up ePoster Presentation Simone Cerciello, MD, ITALY Gianluca Ciolli, MD, ITALY Fabrizio Mocini, MD, ITALY Dario Candura, ITALY Lorenzo Proietti, MD, ITALY Roberto Simonetta, ITALY Katia Corona, MD, ITALY Gianni Di Vico, MD, ITALY
A Comparison of Clinical Outcomes Of Discoid Versus Standard Meniscus Tear Procedures: A Systematic Review ePoster Presentation Yi (David) Diao, BMSc, CANADA Prushoth Vivekanantha, BMSc, CANADA Dan Cohen, MD, CANADA Yuichi Hoshino, MD, PhD, JAPAN Kanto Nagai, MD, PhD, JAPAN Darren L. de SA, MBA(c), MD FRCSC, CANADA
Meniscus Repair Augmentation Using Blood Clot ePoster Presentation Peter T. Myers, MBBS, FRACS, FAOrthA, AUSTRALIA John Dabis, MBBS, MSc SEM, MRCS, FRCS(Tr&Orth), UNITED KINGDOM Michael Goldberg, MBBS, FRACS, AUSTRALIA Andrew Stillwell, MBBS(Hons), FRACS, FA(ortho)A, AUSTRALIA
Do All Meniscal Ramp Lesions Require Repair? A Prospective Study Of Ramp Lesions with Concomitant ACL Injury? ePoster Presentation Silvampatti Ramasamy Sundararajan, MS(Orth), INDIA Meet Mehta, MD orthopaedics, INDIA Terence Dsouza, MS, DNB, FNB, INDIA Ramakanth Rajagopalakrishnan, D.ortho, DNB(ortho).D.SICOT, INDIA S Rajasekaran, MS(Orth),DOrth,DNB,FRCS(Ed),FRCS(Lon),MCh(Liv),PhD, INDIA
Bone Bridge Technique For Lateral Meniscal Allograft Transplantation – No Difference In Clinical Outcome Compared To The Soft Tissue Technique ePoster Presentation Rahul Bhattacharyya, MBCHB (Hons), MD (Res), FRCS (Orth), MSc, MRCS, UNITED KINGDOM Harry Krishnan, FRCS(Tr&Orth),MEd(ULT), MBBS, BSc (Hons), UNITED KINGDOM Nicole Bausch, MSc physiotherapy and education, UNITED KINGDOM Adam Richard Pilarski, MBBS, MRCS, MBA, BA (hons), UNITED KINGDOM Niall McGoldrick, MB MCh FRCS (Tr & Orth), IRELAND Peter Thompson, MBChB, UNITED KINGDOM Andrew Metcalfe, PhD, UNITED KINGDOM Tim Spalding, FRCS(Orth), UNITED KINGDOM
Increased Mechanical Axis Malalignment Does Not Lead to Worse Outcomes Following Transtibial Meniscus Root Repair ePoster Presentation Logan M. Good, BS, UNITED STATES Reid Palumbo, BS, UNITED STATES Parker Cavendish, BS, UNITED STATES Eric Milliron, BS, UNITED STATES Spencer E. Talentino, MD, UNITED STATES James C. Kirven, BS, UNITED STATES Charles Qin, MD, UNITED STATES Ryan H. Barnes, MD, UNITED STATES Robert A. Duerr, MD, UNITED STATES Christopher C. Kaeding, MD, UNITED STATES Robert A Magnussen, MD, MPH, UNITED STATES David C. Flanigan, MD, UNITED STATES
Biological Augmentation May Play A Role In Obtaining Superior Clinical Outcomes In Meniscal Root Repair With Concomitant Anterior Cruciate Ligament Reconstruction ePoster Presentation Lika Dzidzishvili, MD, SPAIN Irene Isabel López-Torres, MD, PhD, SPAIN David Sáez, MD, SPAIN Antonio Hernández Diez, MD, SPAIN Emilio Calvo, MD, PhD, MBA, SPAIN
Meniscus Transplants Delay Arthroplasty in Patients Over 50 Years of Age ePoster Presentation Kevin R. Stone, MD, UNITED STATES Ann W. Walgenbach, RN, NP, MSN, UNITED STATES Shadera Slatter, MS, UNITED STATES Thomas J. Turek, PhD, UNITED STATES Caroline Ferguson-Dryden, BA, UNITED STATES Marie Dicker, BASc, UNITED STATES Emma Miltenberger, BS, UNITED STATES Riley Horn, BS, UNITED STATES Haley Cowles, BA, UNITED STATES Vivian Liu, BA, UNITED STATES Stephanie Wu, BS, UNITED STATES Mani Vessal, MA, PhD, UNITED STATES

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Meniscal And Cartilage Changes On MRI 5-9 Years After Medial Opening-Wedge High Tibial Osteotomy

Meniscal And Cartilage Changes On MRI 5-9 Years After Medial Opening-Wedge High Tibial Osteotomy

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Meniscal And Cartilage Changes On MRI 5-9 Years After Medial Opening-Wedge High Tibial Osteotomy

Meniscal And Cartilage Changes On MRI 5-9 Years After Medial Opening-Wedge High Tibial Osteotomy

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