Summary: Our study demonstrates gender, pre high tibial osteotomy (HTO) age, pre HTO femoral varus deformity and post HTO joint line obliquity were not independent risk factors for early conversion to total knee arthroplasty in patients following medial open wedge HTO, however, under correction of a medial open wedge HTO was an independent risk factor.

Introduction

Medial open wedge high tibial osteotomy (MOWHTO) in patients with medial compartment osteoarthritis aims to provide pain relief to avoid or delay the need for a primary total knee arthroplasty (TKA). A MOWHTO can produce a valgus deformity in the proximal tibia and potentially increase joint line obliquity (JLO). To restore a neutral mechanical alignment yet avoid abnormal JLO, some surgeons advocate double level osteotomy. However, there is controversy in the literature how JLO affects clinical outcomes and survivorship post MOWHTO. Multiple parameters have been studied to establish the risk factors for conversion to TKA in patients following MOWHTO. To our knowledge, there is no study investigating the impact of JLO and other risk factors on the timing of TKA after a MOWHTO. The aim of our study was to identify risk factors for early conversion to TKA following MOWHTO.

Methods

We retrospectively reviewed our institutions prospectively collected database identifying 159 patients who had conversion to TKA following a previous MOWHTO. Patients were divided into early (<5 years, 41 patients) and late conversion (>7 years, 85 patients) to TKA. Using mediCAD (Version 7.0) and PACS (AGFA Software 8.1.4.170) software we measured the hip-knee-ankle angle (HKA), mechanical medial proximal tibial angle (MPTA), mechanical lateral distal femoral angle (LDFA), weight bearing line percentage with medial side being 0 (WBL %), joint line congruency angle (JLCA) and posterior tibial slope (PTS). We calculated JLO using the Coronal Plane Alignment of the Knee (CPAK) classification, with JLO being the sum of MPTA and LDFA giving 3 groups: distal (<177), neutral (177-183) and proximal (>183). Risk factors for analysis were divided into pre and post MOWHTO. The inter-observer and intra-observer reliability were excellent. Univariate analysis followed by a logistic binary regression analysis was performed to identify independent risk factors. The p value for significance was set at ≤ 0.05.

Results

On univariate analysis there was no significant difference in pre HTO age (p=0.44), gender (p=0.68), KL grade (p=0.48), HKA >8º (p=0.45), MPTA (p=0.56), LDFA >90º (p=0.12), JLCA (p=0.21), and JLO (p=0.18) between the two groups. There was no difference in post HTO MPTA (p=0.18), JLO (p=0.24), and change in PTS (p=0.53) between groups. The incidence of WBL percentage <50% was higher (p=0.01) in the early group as compared to the late group. We included age at HTO, gender, pre HTO LDFA, post HTO JLO and post HTO WBL in our logistic binary regression analysis. Our overall model was statistically significant (p=0.04). We found that WBL percentage <50% was an independent risk factor (p=0.04) for early conversion to TKA with an OR of 2.67 (95% CI 1.04 to 6.82) as compared to those with WBL percentage 50-65%. Age, Gender, pre HTO LDFA, post HTO JLO were not independent risk factors for early conversion to TKA.

Conclusion

Under correction of a MOWHTO with WBL <50% was an independent risk factor for early conversion to TKR, while gender, pre HTO age, pre HTO femoral varus deformity and post HTO JLO were not independent risk factors.

Return to Sports after Inverted V-Shaped High Tibial Osteotomy for Medial Knee Osteoarthritis - Comparison with Medial Opening Wedge High Tibial Osteotomy - ePoster Presentation Taku Ebata, MD, PhD, JAPAN Eiji Kondo, MD, PhD, JAPAN Koji Iwasaki, MD, PhD, JAPAN Dai Sato, MD, PhD, JAPAN Masatake Matsuoka, PhD, JAPAN Tomohiro Onodera, MD, PhD, JAPAN Kazunori Yasuda, MD, PhD, Prof., JAPAN Tomonori Yagi, MD, PhD, JAPAN Norimasa Iwasaki, MD, PhD, JAPAN
Smoking Is Associated With Poor Outcomes And Return To Work Following Opening Wedge High Tibial And Distal Femoral Osteotomy ePoster Presentation Griffith G. Gosnell, MS, UNITED STATES Katherine L. Esser, BS, UNITED STATES Peter Commisso, BS, UNITED STATES Michael Moore, BA, UNITED STATES Nathaniel P. Mercer, MD, UNITED STATES Heath Patrick Gould, MD, UNITED STATES Anil S. Ranawat, MD, UNITED STATES Seth L. Sherman, MD, UNITED STATES Michael J Alaia, MD, UNITED STATES
Comparison Of Clinical Outcomes Between High Tibial Osteotomy And Total Knee Arthroplasty In Older Patients With Severe Osteoarthritis ePoster Presentation Kodai Hamaoka, MD, JAPAN Shinichiro Okimura, MD, PhD, JAPAN Kazushi Horita, MD, JAPAN Yasutoshi Ikeda, MD,PhD, JAPAN Yohei Okada, MD,PhD, JAPAN Tomoaki Kamiya, MD, JAPAN Atsushi Teramoto, MD, PhD, JAPAN
Optimal Knee Alignment During Medial Opening Wedge High Tibial Osteotomy for Medial Meniscus Posterior Root Tear: A Biomechanical Cadaveric Study ePoster Presentation Takaaki Hiranaka, MD, PhD, AUSTRALIA Adam Redgrift, PhD, CANADA Yizaho Li, PhD, CANADA Larissa Michele Madia, MS, CANADA Ryan Willing, PhD, CANADA Alan Getgood, MD, FRCS(Tr&Orth), DipSEM, QATAR
Clinical Outcomes Of High Tibial Osteotomy With Bone Marrow Stimulation Techniques In Knee Osteoarthritis: A Systematic Review ePoster Presentation Ashton Tan, MBBS, SINGAPORE Shaun Chua , MD, SINGAPORE Don Koh, MBBS, BSc, MRCS, MMED, SINGAPORE Junwei Soong, MBBS, MRCS (Edin), MMED (Ortho), FRCS (Edin), SINGAPORE Kong Hwee Lee, MBBS, FRCS (Ortho), SINGAPORE Hamid Rahmatullah Bin Abd Razak, MBBS, FRCSEd (Ortho), FRCSGlasg (Tr & Orth), FAMS, SINGAPORE
Trochlear Cartilage Regeration After Arthroscopic Marrow Stimulation Combined With High Tibial Osteotomy And 3-Dimensionally Measured Patellofemoral Biomechanical Parameters ePoster Presentation Byeong-Hun Jeon, MD, KOREA, REPUBLIC OF Se-Han Jung, MD, KOREA, REPUBLIC OF Min Jung, MD, PhD, KOREA, REPUBLIC OF Kwangho Chung, MD, KOREA, REPUBLIC OF Hyun-Soo Moon, MD, PhD, KOREA, REPUBLIC OF Sung-Hwan Kim, MD, PhD, KOREA, REPUBLIC OF
Neutral to Slightly Undercorrected Mechanical Leg Alignment Provides Superior Long-Term Results in Patients Undergoing Matrix-Associated Autologous Chondrocyte Implantation ePoster Presentation Johannes Weishorn, MD, GERMANY Johanna Wiegand, MD, GERMANY Severin Zietzschmann, MD, GERMANY Raphael Trefzer, MD, GERMANY Kevin-Arno Koch, MD, GERMANY Tilman Walker, GERMANY
Return to sports after unilateral medial opening wedge high tibial osteotomy in highly active patients -Analysis of factors affecting functional recovery- ePoster Presentation Hiroshi Nakayama, MD., PhD., JAPAN Tomoya Iseki, MD, PhD, JAPAN Ryo Kanto, MD, PhD., JAPAN Shintaro Onishi, MD, PhD, JAPAN Shinichi Yoshiya, MD, JAPAN Toshiya Tachibana, MD, PhD, JAPAN
Three-Dimensional Change in Tibiofemoral Relationship After High Tibial Osteotomy: Medial Open Wedge Versus Lateral Closed Wedge ePoster Presentation Yuta Tachibana, M.D., Ph.D., JAPAN Kazutaka Kinugasa, MD, PhD, JAPAN Kunihiko Hiramatsu, MD, PhD, JAPAN Yuzo Yamada, MD, PhD, JAPAN Ayaka Tanaka, MD, JAPAN Yoshinari Tanaka, MD, PhD, JAPAN
The Benefits Of A Percutaneous Supplemental Screw To Reinforce The Hinge Of A Medial Open Wedge Tibial Osteotomy ePoster Presentation Hsuan‑Hsiao Ma, MD, TAIWAN En-Rung Chiang, MD, PhD, TAIWAN
Correlation Between Histological Assessment of Regenerated Articular Cartilage and Mid- to Long-Term Clinical Outcomes After Open-Wedge High Tibial Osteotomy ePoster Presentation Yasutoshi Ikeda, MD,PhD, JAPAN Kazushi Horita, MD, JAPAN Kodai Hamaoka, MD, JAPAN Kousuke Shiwaku, MD, JAPAN Shinichiro Okimura, MD, PhD, JAPAN Yohei Okada, MD,PhD, JAPAN Tomoaki Kamiya, MD, JAPAN Atsushi Teramoto, MD, PhD, JAPAN
Comparison of Perioperative Leg Length Change Between the Medial Closing Wedge and Lateral Opening Wedge Distal Femoral Osteotomy for Valgus Knee Deformity ePoster Presentation Shintaro Onishi, MD, PhD, JAPAN Youngji Kim, MD, PhD, JAPAN Hiroshi Nakayama, MD., PhD., JAPAN Ahmed Mabrouk, MBBCH (HONS), MRCS, FRCS (Trauma & Orthopaedics), UNITED KINGDOM Matthieu Ollivier, Prof, MD, PhD , FRANCE
Cartilage repair after opening -wedge high tibial osteotomy with autologous osteochondral transplantation for spontaneous osteonecrosis of the knee and osteoarthritis ePoster Presentation Shogo Mukai, MD, JAPAN Yasuaki Nakagawa, MD, JAPAN
Management of postoperative deep infection in osteotomy around the knee ePoster Presentation Hiroki Miya, MD, JAPAN Hiroshi Nakayama, MD., PhD., JAPAN Tomoya Iseki, MD, PhD, JAPAN Shintaro Onishi, MD, PhD, JAPAN Ryo Kanto, MD, PhD., JAPAN Yoshitaka Nakao, MD, JAPAN Akira Kawai, MD, JAPAN Shunsuke Akai, MD, JAPAN Shinichi Yoshiya, MD, JAPAN Toshiya Tachibana, MD, PhD, JAPAN
Effect Of Meniscal Tear Patterns And Preoperative Cartilage Status On Joint Space Width After Medial Opening-Wedge High Tibial Osteotomy ePoster Presentation Sang-Min Lee, Prof., KOREA, REPUBLIC OF Lih Wang, MD, PhD, KOREA, REPUBLIC OF Jung Shin Kim, Prof., KOREA, REPUBLIC OF Won Chul Shin, Prof., KOREA, REPUBLIC OF
Changes in Talus CT Values Before and After Medial Opening Wedge High Tibial Osteotomy for Knee Osteoarthritis ePoster Presentation Yoshiharu Shimozono, MD, PhD, JAPAN Yuki Shinya, MD, JAPAN Sayako Sakai, MD, JAPAN Shinichi Kuriyama, MD, PhD, JAPAN Shuichi Matsuda, MD, PhD, JAPAN
Support Instruments Provide Remarkable Stability in Medial Closed Wedge Distal Femoral Osteotomy -A Finite Element Analysis- ePoster Presentation Umito Kuwashima, MD, PhD, JAPAN Masafumi Itoh, MD, PhD, JAPAN Junya Itou, MD, PhD, JAPAN Ken Okazaki, MD, PhD, JAPAN
The Impact Of Medial Opening Wedge High Tibial Osteotomy On Patellar Height And Tibial Tubercle – Trochlear Groove Distance: Prospective Analysis Of 54 Consecutive Cases. ePoster Presentation Coral Castillejo Iniesta, MD, SPAIN Giacomo Dal Fabbro, MD, AUSTRALIA Margherita Bonaiuti, PhD, ITALY Claudio Belvedere, PhD, ITALY Alberto Leardini, DPhil, ITALY Fabio Norvillo, ITALY Alberto Grassi, PhD, ITALY Stefano Zaffagnini, MD, Prof., ITALY Fulvia Taddei, ENG, ITALY
Influence of Preoperative Bone Marrow Lesions on Postoperative Cartilage Improvement After Open Wedge High Tibial Osteotomy ePoster Presentation Kosuke Kawamura, MD, JAPAN Eiji Sasaki, MD, PhD, JAPAN Takahiro Tsushima, MD, PhD, JAPAN Yuka Kimura, MD, PhD, JAPAN Yukiko Sakamoto, MD, PhD, JAPAN Eiichi Tsuda, Prof., JAPAN Yasuyuki Ishibashi, MD, JAPAN
Clinical Results After Double Level Osteotomy For Knee Osteoarthritis With Joint-Line Obliquity ePoster Presentation Mitsuki Shimizu, MD, JAPAN Hiroshi Nakayama, MD., PhD., JAPAN Akira Kawai, MD, JAPAN Yoshitaka Nakao, MD, JAPAN Ryo Kanto, MD, PhD., JAPAN Shintaro Onishi, MD, PhD, JAPAN Tomoya Iseki, MD, PhD, JAPAN Shinichi Yoshiya, MD, JAPAN Toshiya Tachibana, MD, PhD, JAPAN
Influence Of Different Standing Positions On Anatomical Parameters Of Coronal Whole-Leg Weightbearing Radiographs In Preoperative Planning For High Tibial Osteotomy ePoster Presentation Tomoaki Kamiya, MD, PhD, JAPAN Kodai Hamaoka, MD, JAPAN Yohei Okada, MD,PhD, JAPAN Yasutoshi Ikeda, MD,PhD, JAPAN Kazushi Horita, MD, JAPAN Atsushi Teramoto, MD, PhD, JAPAN
Medial Open Wedge High Tibial Osteotomy with Bone Marrow Derived Stem Cell for Medial Knee Osteoarthritis ePoster Presentation WhanYong Chung, MD, PhD, Prof, KOREA, REPUBLIC OF Hyun Hee Lee, MD, KOREA, REPUBLIC OF
Pre-Operative Predictive Risk Factors Of Surgical Failure: An Analysis Of 131 Consecutive Valgus Producing High Tibial Osteotomy (HTO) For Knee Osteoarthritis Treatment ePoster Presentation Giacomo Dal Fabbro, MD, AUSTRALIA Giovanni Balboni, MD, ITALY Stefano Di Paolo, Eng, ITALY Gian Andrea Lucidi, MD, ITALY Giulio Maria Marcheggiani Muccioli, MD, PhD, Associate Professor, ITALY Alberto Grassi, PhD, ITALY Stefano Zaffagnini, MD, Prof., ITALY
The distribution of femoral and tibial coronal alignment in Japan: a multicentric retrospective study of patients with knee osteoarthritis ePoster Presentation Takashi Tsuda, JAPAN Kazunori Hino, MD, PhD, JAPAN Tatsuhiko Kutsuna, MD, PhD, JAPAN Kunihiko Watamori, MD, JAPAN Tomofumi Kinoshita, MD, PhD, JAPAN Takafumi Hiranaka, MD, PhD, JAPAN Eiichi Shiigi, MD、PhD, JAPAN Hiroshi Inui, MD, PhD, JAPAN Kohei Kawaguchi, MD, PhD, JAPAN Masaki Takao, Prof., JAPAN
Return to Play After H-CWHTO (Hybrid Closed Wedge High Tibial Osteotomy) ePoster Presentation Tomoyuki Shimakawa, MD, JAPAN Ryuichi Nakamura, MD, PhD, JAPAN Akira Okano, MD, PhD, JAPAN Yuki Yamauchi, MD,PhD, JAPAN
Patellar Height Decrease After Opening Wedge High Tibial Osteotomy While No Change in Closing Wedge Technique ePoster Presentation Robert Ferrer-Rivero, MD, SPAIN Oriol Pujol, MD, SPAIN Josep Ferrer-Rivero, MD, SPAIN Gabriel Oliver, MD, PhD, SPAIN
Evaluation of Early Deep Vein Thrombosis Using Lower Extremity Vein Ultrasound Following High Tibial Osteotomy ePoster Presentation Misako Takizawa, MD, JAPAN Atsushi Sato, MD, PhD, JAPAN Takayuki Koya, MD, PhD, JAPAN Masataka Ota, MD, JAPAN Reo Nagasaka, JAPAN Marika Mukunoki, MD, JAPAN Kanako Izukashi, MD, JAPAN Jun Oike, MD, PhD, JAPAN Takayuki Okumo, MD, PhD, JAPAN Saki Yagura, MD, JAPAN Koji Kanzaki, Prof., JAPAN
Anterior Closing Wedge High Tibial Osteotomy and a Third ACL Reconstruction: Will These Patients Return to Impact Sports? ePoster Presentation Ahmed Mabrouk, MBBCH (HONS), MRCS, FRCS (Trauma & Orthopaedics), UNITED KINGDOM Matthieu Ollivier, Prof, MD, PhD , FRANCE
Medial Hinge Fracture After Closing Wedge High Tibial Osteotomy: Classification and Risk Factor Analysis of a Neglected Complication ePoster Presentation Gian Andrea Lucidi, MD, ITALY Giovanni Balboni, MD, ITALY Luca Solaro, MD, ITALY Margherita Bonaiuti, PhD, ITALY Constantinos Drousiotis, MD, ITALY Giacomo Dal Fabbro, MD, AUSTRALIA Alberto Grassi, PhD, ITALY Stefano Di Paolo, Eng, PhD, ITALY Stefano Zaffagnini, MD, Prof., ITALY
Double Level Osteotomy Provides Fairly Satisfactory Mid-term Outcomes in Patients with Symptomatic Severe Varus Osteoarthritic Knee. ePoster Presentation Ryo Ueshima, MD, JAPAN Shintaro Onishi, MD, PhD, JAPAN Tomoya Iseki, MD, PhD, JAPAN Ryo Kanto, MD, PhD., JAPAN Ryuichi Gejo, MD, PhD, JAPAN Shinichi Yoshiya, MD, JAPAN Toshiya Tachibana, MD, PhD, JAPAN Hiroshi Nakayama, MD., PhD., JAPAN
Utilizing Mobile Apps to Monitor Recovery After Knee Osteotomy: Challenges and Time to Return to Preoperative Step Counts ePoster Presentation Takaaki Hiranaka, MD, PhD, AUSTRALIA Nicola Denese Mackay, BMSc (Hons), MB ChB (Hons), FRCS (Tr&Orth), UNITED KINGDOM Adit Rajesh Maniar, MBBS, MS Orthopaedics, DNB Orthopaedics, INDIA Alan Getgood, MD, FRCS(Tr&Orth), DipSEM, QATAR
A Lateral Hinge Screw Significantly Resists Varus Stress In Biplanar Medial Closing Wedge Distal Femoral Osteotomy ePoster Presentation Benjamin Main, DO, UNITED STATES Matthieu Ollivier, Prof, MD, PhD , FRANCE Pooyan Abbasi, MSc, UNITED STATES Wiemi A Douoguih, MD, UNITED STATES
Short-Term Clinical Outcomes Of Medial Open-Wedge Distal Tuberosity Tibial Osteotomy For Early Osteoarthritis Of The Knee ePoster Presentation Yoshitaka Nakao, MD, JAPAN Hiroshi Nakayama, MD., PhD., JAPAN Tomoya Iseki, MD, PhD, JAPAN Ryo Kanto, MD, PhD., JAPAN Shintaro Onishi, MD, PhD, JAPAN Takuya Iseki, MD, PhD, JAPAN Toshiya Tachibana, MD, PhD, JAPAN
Relationship Between Proximal Tibio-Fibular Overlap And Lower Limb Torsion In An Asian Population ePoster Presentation Ashton Tan, MBBS, SINGAPORE Xinyu Tao, MBBS, SINGAPORE Don Koh, MBBS, BSc, MRCS, MMED, SINGAPORE Kong Hwee Lee, MBBS, FRCS (Ortho), SINGAPORE Hamid Rahmatullah Bin Abd Razak, MBBS, FRCSEd (Ortho), FRCSGlasg (Tr & Orth), FAMS, SINGAPORE Junwei Soong, MBBS, MRCS (Edin), MMED (Ortho), FRCS (Edin), SINGAPORE
Preoperative Mechanical Proximal Tibial Angle is Perfectly Correlated to Correction Angle in Medial Open Wedge High Tibial Osteotomy with MPTA-based Surgical Planning ePoster Presentation Thanh Sang Nguyen, MD, MS, TAIWAN Jia-Lin Wu, MD, MS, TAIWAN
Does The Use Of A Non-Tourniquet During High Tibial Osteotomy Decrease Postoperative Pain? A Systematic Review And Meta-Analysis ePoster Presentation Hirotaka Nakashima, MD, PhD, JAPAN Pattanaket Cheewa, THAILAND Keisuke Nakayama, MD, PhD, JAPAN Shinichiro Takada, MD, JAPAN Soshi Uchida, MD, PhD, JAPAN
Mechanical effects of sagittal plane angle on transverse cut in OWHTO and OWDTO: A finite element method ePoster Presentation Shogo Matsuda, MD, JAPAN Masashi Hirakawa, MD, PhD, JAPAN Mitsugu Todo, PhD, JAPAN Yu Nagashima, MD, JAPAN Hiroya Akase, MD, JAPAN Nobuhiro Kaku, MD, PhD, JAPAN
Infratuberositary Slope-Decreasing Anterior Closed Wedge Proximal Tibial Osteotomy is Safe and Shows Rapid Bone Healing ePoster Presentation Philipp Schuster, Prof. Dr., GERMANY Philipp Mayer, MD, GERMANY Janina Leiprecht, MD, GERMANY Grégoire Micicoi, MD-PhD, FRANCE Jörg Dickschas, MD, GERMANY
DOUBLE LEVEL OSTEOTOMY FOR THE MANAGEMENT OF SEVERE VARUS MALALIGNMENT (ABOVE 15 DEGREES). CLINICAL AND RADIOGRAPHIC FOLLOW-UP AT TWO YEARS. ePoster Presentation Rodolfo Morales-Avalos, MD, PhD., MEXICO Luis Miguel Pacheco-Garcia, MD, PhD., MEXICO
Tibial Slope Variation After Opening Wedge High Tibial Osteotomy While No Change in Closing Wedge Technique ePoster Presentation Robert Ferrer-Rivero, MD, SPAIN Oriol Pujol, MD, SPAIN Josep Ferrer-Rivero, MD, SPAIN Gabriel Oliver, MD, PhD, SPAIN
Knee Adduction Moment During Gait Vs. Radiographic Alignment Parameters: HTO Optimal Target From A Dynamic Perspective ePoster Presentation Kee Soo Kang, MD, KOREA, REPUBLIC OF Na-Kyoung Lee, MD, PhD, KOREA, REPUBLIC OF Sohyeon Jeon, KOREA, REPUBLIC OF Shi Eun Lee, RN, KOREA, REPUBLIC OF Ja-Young Choi, MD, PhD, KOREA, REPUBLIC OF Seung-Baik Kang, MD, PhD, Prof., KOREA, REPUBLIC OF Chong Bum Chang, MD, PhD, KOREA, REPUBLIC OF
Measuring Osteotomy Wedge Angle Is More Important Than Measuring Wedge Height In Open Wedge Osteotomies Around The Knee ePoster Presentation Julius Watrinet, MD, Dr. med., GERMANY Johannes Schlaich, Stud., GERMANY Romed Peter Vieider, MD, GERMANY Marco-Christopher Rupp, MD, GERMANY Julian Mehl, MD, GERMANY Sebastian Siebenlist, MD, MHBA, Prof., GERMANY Armin Runer, PD MD, GERMANY
Same Day Discharge Knee Osteotomy: The Results of a High-Volume Canadian Centre ePoster Presentation Nicola Denese Mackay, BMSc (Hons), MB ChB (Hons), FRCS (Tr&Orth), UNITED KINGDOM Hana Marmura, MPT, PhD, UNITED STATES Vincent Roy, MD, MSc, CANADA Ryan M. Degen, MD, FRCSC, CANADA Robert Litchfield, MD, FRCSC, CANADA J. Robert Giffin, MD, FRCSC, MBA, CANADA Alan Getgood, MD, FRCS(Tr&Orth), DipSEM, QATAR
BMI and Medial Opening Wedge High Tibial Osteotomy, How Heavy Can You Go? ePoster Presentation Ahmed Mabrouk, MBBCH (HONS), MRCS, FRCS (Trauma & Orthopaedics), UNITED KINGDOM Michael J. Risebury, MBBS(Hons), MA(Hons), FRCS(Tr&Orth), UNITED KINGDOM Sam K. Yasen, MBBS, MScEng, BSc, MRCS, FRCS(Tr&Orth), PGCE, UNITED KINGDOM
Normative Values Of Radiographic Parameters In Coronal Plane Lower Limb Alignment In Japanese General Population; Cross-Sectional Study In Iwaki Cohort ePoster Presentation Ryoto Kura, MD, JAPAN Eiji Sasaki, MD, PhD, JAPAN Takahiro Tsushima, MD, PhD, JAPAN Yukiko Sakamoto, MD, PhD, JAPAN Kyota Ishibashi, MD, JAPAN Yuka Kimura, MD, PhD, JAPAN Eiichi Tsuda, Prof., JAPAN Yasuyuki Ishibashi, MD, JAPAN
To See Or Not To See? That Is The Question. Ultrasound Guidance To Improve Accuracy When Injections Are Used In Tendinopathies: Two Cadaveric Studies. ePoster Presentation Federico Ibañez, MD, SPAIN Ferran Abat, MD, PhD, SPAIN
Double-Level Osteotomy: A Systematic Review Of Patient-Reported Outcomes, Conversion To Total Knee Arthroplasty, Complications, And Alignment ePoster Presentation Anil S. Ranawat, MD, UNITED STATES Gabrielle Dituri, BS, UNITED STATES Akshay Raghuram, BS, UNITED STATES Nathan Varady, MD, MBA, UNITED STATES
Knees 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 ePoster Presentation Gaby Victoria Ten Noever De Brauw, NETHERLANDS Tarik Bayoumi, MD, NETHERLANDS Lindsey Ruderman, BA, UNITED STATES Gino M. M. J. Kerkhoffs, MD, PhD, Prof., NETHERLANDS Andrew D. Pearle, MD, UNITED STATES Hendrik Aernout Zuiderbaan, MD PhD, NETHERLANDS
Precision of Tibiofemoral Angle Assessment: A Comparative Analysis of Long Leg Radiographs and Magnetic Resonance Imaging ePoster Presentation Danaithep Limskul, MD, THAILAND Theeraphat Kotimanusvanij, MD, THAILAND Napatpong Thamrongskulsiri, MD, THAILAND Thun Itthipanichpong, MD, THAILAND Thanathep Tanpowpong, MD, THAILAND Somsak Kuptniratsaikul, MD, THAILAND
Changes In Synovial Fluid Markers In Osteoarthritis Are Associated With Changes In Gait Biomechanics After High Tibial Osteotomy ePoster Presentation Jenna Schulz, PT, PhD, CANADA Trevor B. Birmingham, PT, PhD, CANADA Holly Philpott, PhD, CANADA Codie Primeau, PT, PhD, CANADA Hayden Atkinson, MSc, CANADA Kristyn M. Leitch, PhD, CANADA J. Robert Giffin, MD, FRCSC, MBA, CANADA Frank Beier, PhD, CANADA C. Thomas Appleton, MD, PhD, CANADA
A Novel Safety Device For Bicortical Fixation In Medial-opening Wedge High Tibial Osteotomy Reduces Correction Loss And Promotes Bone Union ePoster Presentation Syunya Otani, MD, PhD, JAPAN Masafumi Itoh, MD, PhD, JAPAN Umito Kuwashima, MD, PhD, JAPAN Junya Itou, MD, PhD, JAPAN Ken Okazaki, MD, PhD, JAPAN
Mid-Term Outcome Analysis Between Isolated Hto V/S Hto Combined With Arthroscopy In Medial Compartment Oa Knee - A Comparative Study ePoster Presentation Arun Gr, MBBS,MS,FASM, INDIA
Patient Specific Instrument-Guided Distal Femur Biplanar Osteotomy of Valgus Knees ePoster Presentation Jui Cheng Lin, MD, TAIWAN Jia-Lin Wu, MD, MS, TAIWAN
Changes In Coronal Tibial Alignment In Anterior Tibial Closing Wedge Osteotomy Are Caused By Axial Rotation Of The Hinge ePoster Presentation Julius Watrinet, MD, Dr. med., GERMANY Philipp Blum, MD, GERMANY Julian Mehl, MD, GERMANY Sebastian Siebenlist, MD, MHBA, Prof., GERMANY Julian Fürmetz, PD MD, GERMANY
Comparable Early Conversion Rates To Total Knee Arthroplasty Among Different Bony Deformity Locations After Medial Opening Wedge High Tibial Osteotomy: A North American Cohort Study ePoster Presentation Takaaki Hiranaka, MD, PhD, AUSTRALIA Takeo Tokura, MD, JAPAN Ryan M. Degen, MD, FRCSC, CANADA Kevin R. Willits, MD, FRCS, CANADA Robert Litchfield, MD, FRCSC, CANADA Alan Getgood, MD, FRCS(Tr&Orth), DipSEM, QATAR

Menu

Search Filters

Medial Open Wedge High Tibial Osteotomy: Risk Factors for Early Conversion to Total Knee Arthroplasty

Medial Open Wedge High Tibial Osteotomy: Risk Factors for Early Conversion to Total Knee Arthroplasty

Introduction

Methods

Results

Conclusion

Knee Osteotomy ePosters

Sign-in to ISAKOS

Medial Open Wedge High Tibial Osteotomy: Risk Factors for Early Conversion to Total Knee Arthroplasty

Medial Open Wedge High Tibial Osteotomy: Risk Factors for Early Conversion to Total Knee Arthroplasty

Introduction

Methods

Results

Conclusion