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Tokyo Women's Medical University, Department of Orthopaedic Surgery Tokyo JAPAN ISAKOS Active Member
2026 Vol. III Editor's Message Iftach Hetsroni, MD, Associate Prof., ISRAEL Claudia Arias, MD, PERU Nikolaos K. Paschos, MD, PhD, UNITED STATES2026 Vol. III President's Message João Espregueira-Mendes, MD, PhD, Full Prof., PORTUGAL2026 Vol. III JISAKOS Editor in Chief's Message Olufemi R. Ayeni, MD, PhD, MSc, FRCSC, CANADAUnrestricted Kinematic Alignment TKA in Asian Knees: Restoring Native Alignment Without Crossing the Safety Line Ken Okazaki, MD, PhD, Prof., JAPANBeyond the P Value: From Statistical Metrics to Clinical Decision-Making Luciano Rossi, PhD, ARGENTINA Ignacio Pasqualini, MD, ARGENTINAMedial Opening-Wedge High Tibial Osteotomy: To Fill or Not to Fill the Gap Tomás Pineda, MD, CHILE Thomas Neri, MD, PhD, Prof., FRANCE Matthieu Ollivier, Prof, MD, PhD , FRANCEAcetabular Depth is Your Friend: Adequate Rim Resection in Femoroacetabular Impingement Surgery Remains a Challenge Joshua Sapong Knudsen, FRACS (Ortho), MBChB, NEW ZEALAND Matthew J. Brick, MBChB, FRACS, NEW ZEALANDEuropean Union Regulation on Substances of Human Origin (SoHO): What You Need to Know! Theodorakys Marín Fermín, MD, VENEZUELA Angelo Vasileios Vasiliadis, MD, MSc, PhD, GREECE Tiago Lazzaretti Fernandes, MD, PhD, MSc, Post-Doctorate, Professor, BRAZIL Michail I. Iosifidis, MD, PhD, GREECE Norimasa Nakamura, MD, PhD, JAPAN Fabio Valerio Sciarretta, MD, ITALYThe FORUM Fellowship: Learning, Leadership, and the Power of Women in Orthopaedics Claudia Arias, MD, PERU Camila Cohen Kaleka, MD, PhD, BRAZILJISAKOS at Ten: A Journal, a Crew, and a Safe Anchorage for ISAKOS Philippe Noel Neyret, MD, PhD, Prof., FRANCE Jon Karlsson, MD, PhD, Prof., SWEDEN Volker Musahl, MD, Prof., UNITED STATES Olufemi R. Ayeni, MD, PhD, MSc, FRCSC, CANADA João Espregueira-Mendes, MD, PhD, Full Prof., PORTUGAL2026 ISKAOS Knee Arthroplasty Forum: Highlights from Brussels, Belgium Claudia Arias, MD, PERUFrom Idea to Impact: How an ISAKOS Research Grant Enabled High-Quality Orthobiologics Research in a Limited-Resource Setting Theodorakys Marín Fermín, MD, VENEZUELAFrom a Clinical Question to Clinical Research: The Impact of an ISAKOS Research Grant Nicolas Valladares, MD, MEXICO
ISAKOS eNewsletters Web 13 minutes group rating (1)
Effect Of Meniscal Tear Patterns And Preoperative Cartilage Status On Joint Space Width After Medial Opening-Wedge High Tibial Osteotomy Lih Wang, MD, PhD, KOREA, REPUBLIC OFReturn to Sports after Inverted V-Shaped High Tibial Osteotomy for Medial Knee Osteoarthritis - Comparison with Medial Opening Wedge High Tibial Osteotomy - Taku Ebata, MD, PhD, JAPANCartilage repair after opening -wedge high tibial osteotomy with autologous osteochondral transplantation for spontaneous osteonecrosis of the knee and osteoarthritis Shogo Mukai, MD, JAPANComparison Of Clinical Outcomes Between High Tibial Osteotomy And Total Knee Arthroplasty In Older Patients With Severe Osteoarthritis Kodai Hamaoka, MD, JAPANPreoperative Mechanical Proximal Tibial Angle is Perfectly Correlated to Correction Angle in Medial Open Wedge High Tibial Osteotomy with MPTA-based Surgical Planning Thanh Sang Nguyen, MD, MS, TAIWANManagement of postoperative deep infection in osteotomy around the knee Hiroki Miya, MD, JAPANComparison of Perioperative Leg Length Change Between the Medial Closing Wedge and Lateral Opening Wedge Distal Femoral Osteotomy for Valgus Knee Deformity Shintaro Onishi, MD, PhD, JAPANThree-Dimensional Change in Tibiofemoral Relationship After High Tibial Osteotomy: Medial Open Wedge Versus Lateral Closed Wedge Yuta Tachibana, M.D., Ph.D., JAPANPatellar Height Decrease After Opening Wedge High Tibial Osteotomy While No Change in Closing Wedge Technique Robert Ferrer-Rivero, MD, SPAINChanges In Synovial Fluid Markers In Osteoarthritis Are Associated With Changes In Gait Biomechanics After High Tibial Osteotomy Jenna Schulz, PT, PhD, CANADAComparable Early Conversion Rates To Total Knee Arthroplasty Among Different Bony Deformity Locations After Medial Opening Wedge High Tibial Osteotomy: A North American Cohort Study Takaaki Hiranaka, MD, PhD, JAPANOptimal Knee Alignment During Medial Opening Wedge High Tibial Osteotomy for Medial Meniscus Posterior Root Tear: A Biomechanical Cadaveric Study Takaaki Hiranaka, MD, PhD, JAPANReturn to Play After H-CWHTO (Hybrid Closed Wedge High Tibial Osteotomy) Tomoyuki Shimakawa, MD, PhD, JAPANShort-Term Clinical Outcomes Of Medial Open-Wedge Distal Tuberosity Tibial Osteotomy For Early Osteoarthritis Of The Knee Yoshitaka Nakao, MD, JAPANCorrelation Between Histological Assessment of Regenerated Articular Cartilage and Mid- to Long-Term Clinical Outcomes After Open-Wedge High Tibial Osteotomy Yasutoshi Ikeda, MD,PhD, JAPANMedial Degenerative Disease of the Knee Without Radiographic Osteoarthritis is a Good Indication for Medial Open Wedge High Tibial Osteotomy Junya Itou, MD, PhD, JAPANKnee Adduction Moment During Gait Vs. Radiographic Alignment Parameters: HTO Optimal Target From A Dynamic Perspective Kee Soo Kang, MD, PhD, KOREA, REPUBLIC OFBMI and Medial Opening Wedge High Tibial Osteotomy, How Heavy Can You Go? Ahmed Mabrouk, MBBCH (Hons), MRCS, FRCS (Trauma & Orthopaedics), UNITED KINGDOMTo See Or Not To See? That Is The Question. Ultrasound Guidance To Improve Accuracy When Injections Are Used In Tendinopathies: Two Cadaveric Studies. Federico Ibañez, MD, SPAINMedial Open Wedge High Tibial Osteotomy: Risk Factors for Early Conversion to Total Knee Arthroplasty Nicola Denese Mackay, BMSc (Hons), MB ChB (Hons), FRCS (Tr&Orth), UNITED KINGDOMSupport Instruments Provide Remarkable Stability in Medial Closed Wedge Distal Femoral Osteotomy -A Finite Element Analysis- Umito Kuwashima, MD, PhD, JAPANRelationship Between Proximal Tibio-Fibular Overlap And Lower Limb Torsion In An Asian Population Ashton Tan, MBBS, SINGAPOREThe Impact Of Medial Opening Wedge High Tibial Osteotomy On Patellar Height And Tibial Tubercle – Trochlear Groove Distance: Prospective Analysis Of 54 Consecutive Cases. Coral Castillejo Iniesta, MD, SPAINClinical Outcomes Of High Tibial Osteotomy With Bone Marrow Stimulation Techniques In Knee Osteoarthritis: A Systematic Review Ashton Tan, MBBS, SINGAPORENormative Values Of Radiographic Parameters In Coronal Plane Lower Limb Alignment In Japanese General Population; Cross-Sectional Study In Iwaki Cohort Ryoto Kura, MD, JAPANThe distribution of femoral and tibial coronal alignment in Japan: a multicentric retrospective study of patients with knee osteoarthritis Takashi Tsuda, JAPANDouble Level Osteotomy Provides Fairly Satisfactory Mid-term Outcomes in Patients with Symptomatic Severe Varus Osteoarthritic Knee. Ryo Ueshima, MD, JAPANChanges in Talus CT Values Before and After Medial Opening Wedge High Tibial Osteotomy for Knee Osteoarthritis Yoshiharu Shimozono, MD, PhD, JAPANMechanical effects of sagittal plane angle on transverse cut in OWHTO and OWDTO: A finite element method Shogo Matsuda, MD, JAPANPrecision of Tibiofemoral Angle Assessment: A Comparative Analysis of Long Leg Radiographs and Magnetic Resonance Imaging Danaithep Limskul, MD, THAILANDUtilizing Mobile Apps to Monitor Recovery After Knee Osteotomy: Challenges and Time to Return to Preoperative Step Counts Takaaki Hiranaka, MD, PhD, JAPANKnees With Anteromedial Osteoarthritis Show A Substantial Variability In Coronal Plane Alignment Of The Knee (Cpak) Phenotypes: Prevalence And Phenotypic Changes Following Medial Unicompartmental Knee Arthroplasty Gaby Victoria Ten Noever De Brauw, NETHERLANDSNeutral to Slightly Undercorrected Mechanical Leg Alignment Provides Superior Long-Term Results in Patients Undergoing Matrix-Associated Autologous Chondrocyte Implantation Johannes Weishorn, MD, GERMANYInfluence Of Different Standing Positions On Anatomical Parameters Of Coronal Whole-Leg Weightbearing Radiographs In Preoperative Planning For High Tibial Osteotomy Tomoaki Kamiya, MD, JAPANTibial Slope Variation After Opening Wedge High Tibial Osteotomy While No Change in Closing Wedge Technique Robert Ferrer-Rivero, MD, SPAINThe Benefits Of A Percutaneous Supplemental Screw To Reinforce The Hinge Of A Medial Open Wedge Tibial Osteotomy Hsuan‑Hsiao Ma, MD, TAIWANDoes The Use Of A Non-Tourniquet During High Tibial Osteotomy Decrease Postoperative Pain? A Systematic Review And Meta-Analysis Hirotaka Nakashima, MD, PhD, JAPANMid-Term Outcome Analysis Between Isolated Hto V/S Hto Combined With Arthroscopy In Medial Compartment Oa Knee - A Comparative Study Arun Gr, MBBS,MS,FASM, INDIATrochlear Cartilage Regeration After Arthroscopic Marrow Stimulation Combined With High Tibial Osteotomy And 3-Dimensionally Measured Patellofemoral Biomechanical Parameters Byeong-Hun Jeon, MD, KOREA, REPUBLIC OFMeasuring Osteotomy Wedge Angle Is More Important Than Measuring Wedge Height In Open Wedge Osteotomies Around The Knee Julius Watrinet, MD, Dr. med., GERMANYSame Day Discharge Knee Osteotomy: The Results of a High-Volume Canadian Centre Nicola Denese Mackay, BMSc (Hons), MB ChB (Hons), FRCS (Tr&Orth), UNITED KINGDOMSmall Changes Of Femoral Torsion After Distal Femoral Osteotomy Using Patient-Specific Instruments Even In Case Of A Hinge Fracture Lukas Jud, MD, SWITZERLANDAnterior Closing Wedge High Tibial Osteotomy and a Third ACL Reconstruction: Will These Patients Return to Impact Sports? Ahmed Mabrouk, MBBCH (Hons), MRCS, FRCS (Trauma & Orthopaedics), UNITED KINGDOMChanges In Coronal Tibial Alignment In Anterior Tibial Closing Wedge Osteotomy Are Caused By Axial Rotation Of The Hinge Julius Watrinet, MD, Dr. med., GERMANYA Lateral Hinge Screw Significantly Resists Varus Stress In Biplanar Medial Closing Wedge Distal Femoral Osteotomy Wiemi A Douoguih, MD, UNITED STATESNovel Safety Device Eliminates Neurovascular Injury In Medial-opening Wedge High Tibial Osteotomy Masafumi Itoh, MD, PhD, JAPANPatient Specific Instrument-Guided Distal Femur Biplanar Osteotomy of Valgus Knees Jui Cheng Lin, MD, TAIWANClinical Results After Double Level Osteotomy For Knee Osteoarthritis With Joint-Line Obliquity Mitsuki Shimizu, MD, JAPANMedial Hinge Fracture After Closing Wedge High Tibial Osteotomy: Classification and Risk Factor Analysis of a Neglected Complication Gian Andrea Lucidi, MD, ITALYDOUBLE LEVEL OSTEOTOMY FOR THE MANAGEMENT OF SEVERE VARUS MALALIGNMENT (ABOVE 15 DEGREES). CLINICAL AND RADIOGRAPHIC FOLLOW-UP AT TWO YEARS. Rodolfo Morales-Avalos, MD, MSc, PhD., MEXICOA Novel Safety Device For Bicortical Fixation In Medial-opening Wedge High Tibial Osteotomy Reduces Correction Loss And Promotes Bone Union Shunya Otani, MD, PhD, JAPANPre-Operative Predictive Risk Factors Of Surgical Failure: An Analysis Of 131 Consecutive Valgus Producing High Tibial Osteotomy (HTO) For Knee Osteoarthritis Treatment Giacomo Dal Fabbro, MD, ITALYEvaluation of Early Deep Vein Thrombosis Using Lower Extremity Vein Ultrasound Following High Tibial Osteotomy Misako Takizawa, MD, JAPANReturn to sports after unilateral medial opening wedge high tibial osteotomy in highly active patients -Analysis of factors affecting functional recovery- Hiroshi Nakayama, MD., PhD. Associate Professor., JAPANMedial Open Wedge High Tibial Osteotomy with Bone Marrow Derived Stem Cell for Medial Knee Osteoarthritis WhanYong Chung, MD, PhD, Prof, KOREA, REPUBLIC OFInfluence of Preoperative Bone Marrow Lesions on Postoperative Cartilage Improvement After Open Wedge High Tibial Osteotomy Kosuke Kawamura, MD, JAPANSmoking Is Associated With Poor Outcomes And Return To Work Following Opening Wedge High Tibial And Distal Femoral Osteotomy Griffith G. Gosnell, MS, UNITED STATESDouble-Level Osteotomy: A Systematic Review Of Patient-Reported Outcomes, Conversion To Total Knee Arthroplasty, Complications, And Alignment Anil S. Ranawat, MD, UNITED STATESInfratuberositary Slope-Decreasing Anterior Closed Wedge Proximal Tibial Osteotomy is Safe and Shows Rapid Bone Healing Philipp Schuster, Prof. Dr., GERMANY
2025 Congress ePoster Presentation PDF 2025 Not yet rated
Knee Osteotomy Osteoarthritis Bones Cartilage Arthritis Tibio - Fibular Instability Patellofemoral Tears
Alignment Strategies in Personalized TKA Ken Okazaki, MD, PhD, Prof., JAPAN Nicolaas C. Budhiparama, MD, PhD (LUMC, NL), PhD (UGM, ID), FICS, Prof., INDONESIAThe Importance of CPAK in Total Knee Arthroplasty Samuel J. MacDessi, MBBS PhD FRACS FAOrthA , AUSTRALIAThe Importance of Functional Knee Phenotypes (FKP) in TKA Michael T. Hirschmann, MD, Prof., SWITZERLANDKinematic Alignment Coupled with a KA Optimized Implant Restores Knee Function Alexander J. Nedopil, MD, UNITED STATESHow to Optimize Patello-Femoral Tracking with Personalized Alignment Sebastien Lustig, MD, PhD, Prof., FRANCEUse of Robotics to Achieve Your Desired Alignment Jennifer Leighton, MD, MSc, FRCSC, CANADADiscussion
2025 Congress Symposium Video 100 minutes Not yet rated
Ken Okazaki, MD, PhD, Prof., JAPAN Nicolaas C. Budhiparama, MD, PhD (LUMC, NL), PhD (UGM, ID), FICS, Prof., INDONESIA
Knee Osteoarthritis Total Joint Replacement X-ray
Extensor Mechanism Problems in TKA Moises Cohen, MD, PhD, Prof., BRAZIL Ken Okazaki, MD, PhD, Prof., JAPANManaging the Patellofemoral Joint in TKA: The Other Crucial Compartment Ken Okazaki, MD, PhD, Prof., JAPANExtensor Mechanism Rupture - Patellar and Quadriceps Tendon Intra and Postoperatively Abtin Alvand, MD, PhD, UNITED KINGDOMHow to Proceed in Case Patella Alta and Patella Baja in TKR Johannes Beckmann, Prof. Dr., GERMANYHow to Manage the Patellofemoral Instability Together with the TKR Francois M. Kelberine, MD, FRANCEDiscussion and Q&A
2025 Congress Symposium Video 89 minutes Not yet rated
Moises Cohen, MD, PhD, Prof., BRAZIL Ken Okazaki, MD, PhD, Prof., JAPAN
Knee Total Joint Replacement Tendon Tears
ISAKOS Newsletters Current Concepts eBook 2019 rating (1)
Umit Kuwa, MD, PhD, JAPAN
Knee Arthroplasty
Speaker for Smith & Nephew, MedactaPaid Consultant for Depuy, Medacta, AuspiciousBoard of Directors member for Medacta, Auspicious