Summary: This study used the distal point at the clear calcaneal contour as reference point in the measurements of hip-to-calcaneus angle (HCA) and tibia-calcaneus angle (TCA) using the full-length standing lower extremity anteroposterior (AP) radiograph pre- and post-TKA up to 2 years follow-up.

Background

The mechanical axis is conventionally used for evaluating the alignment of the lower extremity during total knee arthroplasty (TKA), not considering the effect of osteoarthritis (OA) on the hindfoot and the changes that occur particularly in the subtalar joint after TKA. This study aimed to compare pre- and post-TKA measurements up to 2 years follow-up using the conventional mechanical axis to the hip-to-calcaneus axis (HCA) and using tibia-calcaneus angle (TCA) as a measure of subtalar compensation to see the changes that happens to the subtalar joint over time.

Methods

All patients diagnosed with varus osteoarthritis that underwent TKA in Nara Medical University Hospital from 2016-2020 under one Orthopaedic surgeon with 2 years follow-up were included in the study. The following were excluded: previous surgery in lower extremity, revision TKA, patients with rheumatoid arthritis, valgus knee, patients with incomplete data. Full-length standing lower extremity anteroposterior radiographs were used to define the reference points and determine the mechanical axis of the lower extremity, HCA, and TCA pre-TKA, post-TKA first follow-up, 1-year post-TKA, and 2 years post-TKA.

Results

There was a total of 45 (55 knees) included in the study composed of 9 male patients with mean age of 77.7 years old and 36 females with mean age of 73.8 years old at the time of surgery. Mixed model regression analysis showed that HCA had similar trend in the line graph with preoperative values of HCA (107%) compared to MA (109%) and had HCA values (58%, 61%, 60%) compared to values of MA (64%, 66%, 65%) post-op, 1st year, and 2nd year post-op respectively. These findings coincide with the results of Hip-Knee-Angle (HKA) and Femoral-Tibial Angle (FTA) which significantly dropped post-op with slight increase at 1st year post-op and plateaus at 2nd year post-op.
Mean pre-op TCA of 12.51 degrees which significantly decreased to 9.20 degrees post-op and continued to decrease to 8.85 degrees at 1st year post-op and 8.44 degrees at 2nd year post-op. The Ankle Joint Line Orientation (AJLO) had a significant drop post-op and Talar tilt (TT) improved post-op but did not reach statistical significance.

Conclusion

The findings of this study showed a similar trend in the improvement of MA, HCA, HKA, and FTA with a significant decrease on first follow-up with a slight increase at 1-year post-TKA then plateaus at 2-year post-TKA.
The TCA had a significant improvement from pre-TKA to post-TKA then plateaus on the succeeding years signifying subtalar joint compensation. Once the varus knee is corrected by TKA, the subtalar joint compensates with the deformity and is corrected. These findings are consistent with previous reports. The subtalar joint can be measured on the same full-length standing lower extremity anteroposterior radiograph suggesting that it may be useful for evaluating the lower extremity alignment, including the calcaneal loading area.

Participation of Physical Activity Following Knee Arthroplasty: A Meta-Analysis ePoster Presentation Ahmed A Magan, BM BSc (Hons) MRCS (Eng) FRCS (Eng) Trauma & Orth, UNITED KINGDOM Babar Kayani, BSc (HONS), MBBS, MRCS (Eng), UNITED KINGDOM Warran Wignadasan, MBBS, BSc (Hons), MRCS, UNITED KINGDOM Dia Eldean Giebaly, MBChB, MSc, FRCS, EMBA, UNITED KINGDOM Flaminia Ronca, PHD, UNITED KINGDOM Fares S. Haddad, MCh(Orth), BSc, FRCS(Orth), UNITED KINGDOM
Use of Tibial Stem for Patients with Morbid Obesity in Total Knee Arthroplasty ePoster Presentation José Eduardo Flores Naranjo, MD, MEXICO Adrian Aziz Cortes De La Fuente, MD, MEXICO Octavio Martinez Montiel, MD, MEXICO Fernando Martinez Zuñiga, MD, MEXICO
The Functional Outcome of Zimmer Biomet’s Nexgen Total Knee Arthroplasty as Compared with Healthy Older Adults ePoster Presentation Gwenllian F. Tawy, PhD, MRes, BSc(Hons), UNITED KINGDOM Michael J. McNicholas, BSc, MD, FRCS Tr & Orth, UNITED KINGDOM Leela C. Biant, MS, MFSTEd, FRCSEd(Tr&Orth), UNITED KINGDOM
Tibial Morphology for Proper Adjustment of Metal Augmentation in Revision Total Knee Arthroplasty ePoster Presentation Yushi Sakamoto, MD, JAPAN Shinichiro Nakamura, MD, PhD, JAPAN Yugo Morita, MD, JAPAN Shinichi Kuriyama, MD, PhD, JAPAN Kohei Nishitani, MD, PhD, JAPAN Young Dong Song, MD, PhD, UNITED STATES Yusuke Yamawaki, MD, JAPAN Shuichi Matsuda, MD, PhD, JAPAN
The Effect of Minor Adjustments to Tibial and Femoral Component Position on Soft Tissue Balance in Robotic Total Knee Arthroplasty ePoster Presentation Simon W. Young, MD, FRACS, NEW ZEALAND Matthew Carter, NEW ZEALAND Gavin William Clark, MBBS, FRACS, AUSTRALIA Christina Esposito, PhD, AUSTRALIA Matthew Walker, MBChB, FRACS, NEW ZEALAND
Total Knee Arthroplasty Without Patellar Component Replacement. Does it Increase the Risk of Revision? Local Experience Analysis ePoster Presentation Zoy Anastasiadis, MD, CHILE Diego Edwards, MD, CHILE Sergio Arellano, MD, CHILE Andrés Schmidt-Hebbel, MD, CHILE Eduardo Gardella, MD, CHILE Nicolás González-Kusjanovic, MD, MSc, CHILE Alex Vaisman, MD, Prof., CHILE
Impact of Femur Correction on the Mechanical Alignment of the Total Knee Prosthesis ePoster Presentation Israel Alejandro Alejandro González Rizo, MD, MEXICO Fidel G Dobarganes, Prof, MEXICO Jorge Negrete Corona, MD, MEXICO Alberto Guevara-Alvarez, MD, MEXICO Franco Garcini Munguia, MD, MEXICO
"The Other Partial Knee"- Milling System Technique for Patellofemoral Arthroplasty in 250 Patients ePoster Presentation Alexander P. Sah, MD, UNITED STATES
Modular Knee Arthrodesis as Definitive Treatment for Periprosthetic Infection, Bone Loss, and Failure of the Extensor Mechanism after Total Knee Arthroplasty ePoster Presentation Gloria Shoshana Coden, MD, UNITED STATES Maksym Bartashevskyy, BA, UNITED STATES Zachary Berliner, MD, UNITED STATES Ruijia Niu, MPH, UNITED STATES James V. Bono, MD, UNITED STATES Ayesha Abdeen, MD, UNITED STATES Eric L. Smith, MD, UNITED STATES
Short Term Outcome of Tibial Defect Reconstruction In Primary Total Knee Arthroplasty: A Retrospective Study ePoster Presentation Sanjib Kumar Behera, MS (Orth), DNB (Rehab), DPMR, INDIA Madhumita Pradhan, BDS, MPH, MHA , INDIA Vikram Choudhary, MD, UNITED STATES
Effect of Restricted Kinematic Alignment Total Knee Arthroplasty on Coronal Plane Alignment Of The Ankle Joint ePoster Presentation Bartosz Michał Maciąg, MD, POLAND Marcin Łapiński, MD, POLAND Tomasz Mrozek, MD, POLAND Adrian Góralczyk, MD, POLAND Maciej Swiercz, MD, POLAND Grzegorz Maciąg, POLAND Krystian Żarnovsky, POLAND Olga Adamska, POLAND Artur Stolarczyk, MD, PhD, POLAND
Long-Term Results of Per-Operative Knee Arthroscopy in Confirming Suitability for Unicompartmental Arthroplasty ePoster Presentation James Gill, MB BChir, BSc, FRCS, UNITED KINGDOM McMeniman J Peter, AUSTRALIA Timothy John Mcmeniman, MBBS(Med)/MBBS, FRACS FA(Orth)A, AUSTRALIA Daniel Johnson Brimm, BSc, MD, AUSTRALIA Peter T. Myers, AM, MBBS, FRACS, FAOrthA, AUSTRALIA
Time-Driven Activity-Based Costs for Manipulation Under Anesthesia after Total Knee Arthroplasty ePoster Presentation Gloria Shoshana Coden, MD, UNITED STATES Suzanne Kent, MD, UNITED STATES John Mazzocco, MD, UNITED STATES Lauren Schoeller, BS, UNITED STATES Ruijia Niu, MPH, UNITED STATES Daniel C Sun, UNITED STATES Eric L. Smith, MD, UNITED STATES
High Cure Rate In Hematogenous TKA PJI At A Long-Term Follow-Up By Means Of Dair Procedure ePoster Presentation Daniel Pérez-Prieto, MD, SPAIN Albert Fontanellas, MD, SPAIN Raúl Torres-Claramunt, PhD, SPAIN Juan Francisco Sanchez-Soler, MD, PhD, SPAIN Joan Carles Monllau, MD, PhD, Prof., SPAIN Pedro Hinarejos, MD, PhD, SPAIN
Preoperative Bone Marrow Edema Negatively Impacts Intermediate to Long-Term Outcomes after Unicompartmental Knee Arthroplasty ePoster Presentation Hong Yeol Yang, MD, PhD, KOREA, REPUBLIC OF Jong-Keun Seon, MD, PhD, Prof, KOREA, REPUBLIC OF
Phenotypic Differences In Coronal Alignment In Robot-Assisted Total Knee Arthroplasty Do Not Affect Patient-Reported Outcome Measurements In A Three-Dimensional Computed Tomography Analysis: A Single-Center Cohort Study ePoster Presentation Takao Kaneko, MD, PhD,, JAPAN Ayakane Yamamoto, MD, JAPAN Kazutaka Takada, MD, JAPAN Shu Yoshizawa, MD, JAPAN Hiroyasu Ikegami, MD, PhD, Prof., JAPAN
Implant Size and Outcome Differences of Knees in Same Patient for Simultaneous vs Staged Bilateral TKA ePoster Presentation Alexander P. Sah, MD, UNITED STATES
No Difference In Sports Participation And Patient-Reported Functional Outcomes Between Total Knee Arthroplasty And Unicompartmental Knee Arthroplasty At Minimum 2-Year Follow-Up In A Matched Control Study ePoster Presentation Amit Meena, MBBS, MS, DNB, INDIA Elisabeth Abermann, MD, AUSTRIA Christian Hoser, MD, AUSTRIA Luca Farinelli, MD, ITALY Caroline Hepperger, PhD, AUSTRIA Akshya Raj, MBBS,MS, INDIA Mohit Kumar Patralekh, MBBS, MS(Orthopaedics), DNB(Orthopaedics), MNAMS, INDIA Christian Fink, MD, Prof., AUSTRIA
Treatment of Periprosthetic Infection after Total Knee Arthroplasty using an Ultrastatic Spacer ePoster Presentation Gloria Shoshana Coden, MD, UNITED STATES Suzanne Kent, MD, UNITED STATES Ruijia Niu, MPH, UNITED STATES Ayesha Abdeen, MD, UNITED STATES Eric L. Smith, MD, UNITED STATES
Does Robotic Assisted Unicompartmental Knee Arthroplasty Restore Native Jointline More Accurately Than With Conventional Instruments? ePoster Presentation Ashok Kumar Podhili Subramani, MS, INDIA Shantanu S. Patil, MBBS, MS(Orth), INDIA SAWAN PAWAR, MBBS MS (ORTH), INDIA Kalaivanan Kanniyan, MBBS MS Orth, INDIA karthik jayachandran, MS, INDIA PICHAI SURYANARAYAN, MBBS MS ORTH, INDIA
Patellar Medial-lateral Position can be Used to Correct the Effect of Leg Rotation on Preoperative Planning in Total Knee Arthroplasty for Varus Knees ePoster Presentation Shinichiro Nakamura, MD, PhD, JAPAN Shota Takemoto, MD, JAPAN Shinichi Kuriyama, MD, PhD, JAPAN Kohei Nishitani, MD, PhD, JAPAN Hiromu Ito, MD, PhD, JAPAN Mutsumi Watanabe, MD, PhD, JAPAN Young Dong Song, MD, PhD, UNITED STATES Shuichi Matsuda, MD, PhD, JAPAN
A Prospective Randomised Study to Compare the Clinical and Radiological Outcomes of Functionally Aligned versus Mechanically Aligned Total Knee Arthroplasty with Robotic Arm Assistance ePoster Presentation Jai Thilak Kailathuvalapil, MS, MCh, FRCS, INDIA Amal Antony Paul, MBBS, INDIA
Bicruciate Substituting Total Knee Arthroplasty Improved Anteroposterior Displacement in Mid-Flexion Range ePoster Presentation Keinosuke Ryu, Prof., JAPAN Takanori Iriuchisima, MD, JAPAN
Clinical Comparison and Survival Rate Between Unicompartmental Knee Arthroplasty and High Tibial Osteotomy With An External Fixator For Varus Knee In Patients Younger Than 60 Years at Mid-Term Follow-Up ePoster Presentation Amit Kumar Yadav, M.S (Orth),DNB(Orth),MNAMS, UNITED KINGDOM Riccardo D'Ambrosi, MD, ITALY Mangal Parihar, MS Ortho, INDIA
Three-Dimensional Evaluation of Distal Femoral Valgus Angle Using Whole Leg CT in Total Knee Arthroplasty ePoster Presentation Atsushi Sato, MD, PhD, JAPAN Jun Oike, MD, PhD, JAPAN Masataka Ota, MD, JAPAN Kanako Izukashi, MD, JAPAN Saki Yagura, MD, JAPAN Takayuki Okumo, MD, PhD, JAPAN Naoki Okuma, MD, JAPAN Takayuki Koya, MD, PhD, JAPAN Fumiyoshi Kawashima, MD, JAPAN Hiroshi Takagi, MD, PhD, JAPAN Koji Kanzaki, Prof., JAPAN
Detection Loosening of Total Knee Arthroplasty Implant from Plain Radiograph Using Machine Learning Algorithm ePoster Presentation Man-Soo Kim, MD, PhD, KOREA, REPUBLIC OF Dongho Kwak, MD, KOREA, REPUBLIC OF Sungcheol Yang, MD, KOREA, REPUBLIC OF Hyukjin Jang, MD, KOREA, REPUBLIC OF Ryu Kyoung Cho, MD, KOREA, REPUBLIC OF Yong In, MD, PhD, KOREA, REPUBLIC OF
Total Knee Arthroplasty Outcomes Following Anterior Cruciate Ligament Reconstruction ePoster Presentation Brian Rao, BS, UNITED STATES Alex C. Dibartola, MD, MPH, UNITED STATES Eric Milliron, BS, UNITED STATES Parker Cavendish, BS, UNITED STATES James C. Kirven, BS, UNITED STATES Spencer E. Talentino, MD, 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
In-Vivo Kinematic Analysis of Evolution® Medial-Pivot Total Knee Arthroplasty during Weight-Bearing Activity ePoster Presentation Eiichi Nakamura, MD, PhD, JAPAN Nobukazu Okamoto, MD, PhD, JAPAN Hitoshi Ito, MD, PhD, JAPAN Tetsurou Masuda, MD, PhD, JAPAN Satoshi Hisanaga, MD, PhD, JAPAN Yasunari Oniki, MD, PhD, JAPAN
Influence of Mini Approach Instrumentation on Component Alignment In Unicondylar Knee Replacement ePoster Presentation Vinod Kumar, MBBS, MS, DNB, MNAMS, INDIA Deepak Gupta, MBBS, MS, INDIA Ananya Sharma, MBBS, MS, DNB , INDIA
How to Measure Physical Function in Clinical Trials on Patients Undergoing Total or Partial Knee Arthroplasty? A Systematic Review ePoster Presentation Marco Adriani, MD, ITALY Roland Becker, MD, PhD, Prof., GERMANY Aleksandra Krolikowska, PhD, Prof., POLAND Krzysztof Lachowski, MD, GERMANY Robert Prill, PhD, GERMANY
Tibia Placement Difference Between The Supine And Prone Position After Total Knee Arthroplasty: The Comparison Of The BCS and PS-TKA ePoster Presentation Takanori Iriuchishima, MD, PhD, JAPAN Keinosuke Ryu, Prof., JAPAN Eiji Cho, MD, JAPAN
Quality of Life Following Primary Total Knee Arthroplasty: Factors Predicting Satisfaction in Low-Income Population ePoster Presentation Mohamed Amine Gharbi , MD, TUNISIA Houssem Eddine Chahed, MD, TUNISIA Ahmed Zendeoui, MD, TUNISIA Moatassem Belleh Jelassi, MD, TUNISIA Anis Tebourbi, MD, TUNISIA Ramzi Bouzidi, PhD, TUNISIA Khelil Ezzaouia, PhD, TUNISIA Mouadh Nefiss, MD, TUNISIA
Intra- And Inter-Operator Reliability Assessment Of A Novel Extramedullary Accelerometer-Based Smart Cutting-Guide For Total Knee Arthroplasty: An In-Vivo Study ePoster Presentation Stefano Zaffagnini, MD, Prof., ITALY Domenico Alesi, MD, ITALY Arcangelo Russo, MD, ITALY Mirco Lo Presti, MD, ITALY Iacopo Sassoli, MD, ITALY Matteo La Verde, MD, ITALY Giulio Maria Marcheggiani Muccioli, MD, PhD, Associate Professor, ITALY
Same Complication Rate After Day-Case Procedure Or Fast-Track Procedure After Total Hip And Knee Arthroplasty. A Prospective, Propensity Score-Matched Case-Control Study ePoster Presentation Jean-Yves Jenny, Prof., FRANCE Vincent Gisonni, MD, FRANCE
Is Surgeon Assessed Bone Quality During Total Knee Arthroplasty a Valid Tool To Diagnose Osteoporosis ? ePoster Presentation Adit Rajesh Maniar, MBBS, MS Orthopaedics, DNB Orthopaedics, INDIA Arpit Vasantbhai Bavaskar, MBBS, D.Orth., INDIA Vishal Raina, MS, INDIA Akshay Nayak, M.B.B.S, M.S , INDIA Ashwini Khokhar, MS, INDIA Rajesh Maniar, INDIA
Patient Satisfaction and Functional outcomes in a Latin American cohort: Comparative Study Between Conventional Technique vs. Robotic Arm Assistance. ePoster Presentation Rafael Calvo, MD, CHILE Maria Loreto Figueroa Berrios, MD, CHILE Rodrigo Guiloff, MD, Prof, CHILE Zoy Anastasiadis, MD, CHILE David H. Figueroa, MD, CHILE
Combined Single-Shot Infiltration Between the Popliteal Artery and Capsule of the Knee and Adductor Canal Block with Bupivacaine, Dexmedetomidine, and Dexamethasone for Total Knee Arthroplasty: A Propensity-Matched Analysis ePoster Presentation David Freccero, MD, UNITED STATES Aneesh V Samineni, BA, UNITED STATES Seroos Salavati, MD, UNITED STATES
Knee Arthroscopy Prior to UKA Does Not Cause Infection ePoster Presentation Kevin D. Plancher, MD, MPH, UNITED STATES Karen Briggs, MPH, UNITED STATES Stephanie C. Petterson, MPT, PhD, UNITED STATES
Patellofemoral Arthroplasty In Community Programs: Case Series of 425 Patients ePoster Presentation Alexander P. Sah, MD, UNITED STATES
Palliative Arthroscopic Debridement with Continuous Irrigation for the Infection TKA of High Mortality Risk Patients ePoster Presentation Yoon Sang Jeon, MD, KOREA, REPUBLIC OF Sung-Sahn Lee, MD., PhD., KOREA, REPUBLIC OF Yoon Cheol Nam, MD, KOREA, REPUBLIC OF Dong Jin Ryu, MD, PhD., KOREA, REPUBLIC OF
Diagnosis of Central Sensitization and Its Effects on Postoperative Outcomes Following Total Knee Arthroplasty: A Systematic Review and Meta-Analysis ePoster Presentation Man-Soo Kim, MD, PhD, KOREA, REPUBLIC OF Dongho Kwak, MD, KOREA, REPUBLIC OF Sungcheol Yang, MD, KOREA, REPUBLIC OF Hyukjin Jang, MD, KOREA, REPUBLIC OF Ryu Kyoung Cho, MD, KOREA, REPUBLIC OF Yong In, MD, PhD, KOREA, REPUBLIC OF
Large Reduction In Postoperative Posterior Tibial Slope Risks Anterior Collapse Of The Tibial Component In Fixed-Bearing Unicompartmental Knee Arthroplasty ePoster Presentation Kazuhisa Hatayama, MD, PhD, JAPAN Masanori Terauchi, MD, JAPAN Shingo Kurihara, MD, JAPAN Satoshi Nonaka, MD, JAPAN Hibiki Kakiage, MD, JAPAN
Comparative Analysis Of Time Taken In Conventional vs. Robotic Assisted Total Knee Arthroplast ePoster Presentation Sanjay B. Londhe, MS, FRCS, FRCSI, MCh, INDIA Santosh Chandrashekar Shetty, MS, INDIA Ashit Hasmukhbhai Shah, FRCS Orth, M ChOrth, M S Orth, D N B Orth, INDIA Niraj Vora, MS,MRCS, INDIA Vijay Shetty, MD, MSc, FRCSC, INDIA Rakesh Nair, MS, INDIA Clevio Joao Baptista Desouza, MD, INDIA Farheen Khan, B.Tech, INDIA
Accuracy of Advanced Active Robotic Technology for Total Knee Arthroplasty: A Cadaveric Study ePoster Presentation Yong-Beom Park, MD, PhD, KOREA, REPUBLIC OF Seong-Hwan Kim, MD,Ph.D, MStat, KOREA, REPUBLIC OF Young-Bong Ko, MD, KOREA, REPUBLIC OF
Short-Term Clinical Outcome Of Functionally Aligned Robotic-Assisted BCS TKA is Better Than That Of Mechanically Aligned Navigation-Assisted BCS TKA ePoster Presentation Daisuke Hamada, MD, PhD, JAPAN Keizo Wada, MD, JAPAN Yasuaki Tamaki, MD, JAPAN Yasuyuki Omichi, MD, JAPAN Tomohiro Goto, MD, PhD, JAPAN Koichi Sairyo, MD, PhD, JAPAN
Association Of Ischemia Time And Serum Lactate Levels With Postoperative Pain In Primary Total Knee Arthroplasty At The Orthopedics And Traumatology Service At The Unidad Médica De Alta Especialidad No. 1 Bajío. ePoster Presentation Juan Antonio García Ramírez, MD, MEXICO
Bilateral Simultaneous Unicompartimental Knee Arthroplasty. Midterm Results in 86 Arthroplasties with an Average Follow-Up Of 6.2 Years ePoster Presentation Stefano Gaggiotti, MD, ARGENTINA Gabriel Gaggiotti, MD, ARGENTINA Santino Gaggiotti, MD, ARGENTINA Julio Cesar Ringa
Effect of Direct Adductor Canal Block Performed by a Surgeon in a Patient Who Underwent Simultaneous Bilateral TKA ePoster Presentation Man-Soo Kim, MD, PhD, KOREA, REPUBLIC OF Dongho Kwak, MD, KOREA, REPUBLIC OF Sungcheol Yang, MD, KOREA, REPUBLIC OF Hyukjin Jang, MD, KOREA, REPUBLIC OF Ryu Kyoung Cho, MD, KOREA, REPUBLIC OF Yong In, MD, PhD, KOREA, REPUBLIC OF
Accuracy of the Component Alignment and Sizing in Total Knee Arthroplasty: Preoperative Templating and Postoperative Evaluation Using CT-Based 3D Pre-Operative Planning Software ePoster Presentation Takayuki Koya, MD, PhD, JAPAN Atsushi Sato, MD, PhD, JAPAN Jun Oike, MD, PhD, JAPAN Masataka Ota, MD, JAPAN Kanako Izukashi, MD, JAPAN Takayuki Okumo, MD, PhD, JAPAN Saki Yagura, MD, JAPAN Naoki Okuma, MD, JAPAN Fumiyoshi Kawashima, MD, JAPAN Hiroshi Takagi, MD, PhD, JAPAN Koji Kanzaki, Prof., JAPAN
Patella in Total Knee Replacement: Patellar Resurfacing has Better Outcomes than Lateral Facetectomy at One Year Follow-Up ePoster Presentation Tomas Alfredo Esteves, MD, ARGENTINA Matias Novillo, MD, ARGENTINA Tomas Nicolino, MD, ARGENTINA Matias Costa-Paz, MD, PhD, ARGENTINA Lisandro Carbó, MD, ARGENTINA Julian Costantini, MD, ARGENTINA
Differences In Pain, Sleep Status And Functional Recovery Between TKA And UKA ePoster Presentation Takeo Mammoto, MD, JAPAN
Advanced Active Robotic Technology for Total Knee Arthroplasty: A Learning Curve of Operative Time and Alignment Accuracy ePoster Presentation Yong-Beom Park, MD, PhD, KOREA, REPUBLIC OF Young-Bong Ko, MD, KOREA, REPUBLIC OF Dong-Hoon Lee, MD, KOREA, REPUBLIC OF Hyun-Chul Nam, MD, KOREA, REPUBLIC OF Seong-Hwan Kim, MD,Ph.D, MStat, KOREA, REPUBLIC OF
Intraoperative Varus-Valgus Joint Laxity Pattern Was Associated With Postoperative Knee Flexion Angle and Patient-Reported Outcome Measures in Bicruciate-Stabilized Total Knee Arthroplasty. ePoster Presentation Ryota Yamagami, MD, JAPAN Kenichi Kono, MD, PhD, JAPAN Kohei Kawaguchi, MD, PhD, JAPAN Tomofumi Kage, JAPAN Ryo Murakami, MD, JAPAN Takahiro Arakawa, MD, JAPAN Hiroshi Inui, PhD, JAPAN Shuji Taketomi, MD, PhD, JAPAN Sakae Tanaka, MD, PhD, JAPAN
Calipered Measurements Method For Kinematically Aligned Total Knee Arthroplasty Has A Risk Of Excessive Varus Cut For The Proximal Tibia In Japanese Varus Knees ePoster Presentation Umit Kuwa, MD, PhD, JAPAN Masafumi Itoh, MD, PhD, JAPAN Junya Itou, MD, PhD, JAPAN Ken Okazaki, MD, PhD, JAPAN
Efficacy of Functional Alignment Technique In Robotic-Arm Assisted Total Knee Arthroplasty ePoster Presentation Masashi Tamaki, MD, PhD, JAPAN Yuki Yamauchi, MD,PhD, JAPAN Seishiro Higa, MD, JAPAN Tomoyuki Shimakawa, MD, JAPAN Yuki Isobe, MD, JAPAN Teruya Ishibashi, MD,PhD, JAPAN Shoji Konda, PhD, JAPAN Tetsuya Tomita, M.D.,Ph.D , JAPAN
Central Sensitization is Associated with Persistent Postoperative Pain and Inferior Patient-Reported Outcomes in Patients Undergoing Unicompartmental Knee Arthroplasty ePoster Presentation Yong In, MD, PhD, KOREA, REPUBLIC OF Dongho Kwak, MD, KOREA, REPUBLIC OF Sungcheol Yang, MD, KOREA, REPUBLIC OF Hyukjin Jang, MD, KOREA, REPUBLIC OF Ryu Kyoung Cho, MD, KOREA, REPUBLIC OF Man-Soo Kim, MD, PhD, KOREA, REPUBLIC OF
Anatomical distribution of radiological OA Influences the Outcome of TKA ePoster Presentation Johanna Elliott, MB, BS, B.Med Sci, Master Science, GERMANY
Follow-Up after Primary Total Knee Arthroplasty with the Sigma PFC implant (DePuy Synthes Inc.) in Patients with Metal Allergy or Hypersensitivity ePoster Presentation Natalie Mengis, MD, SWITZERLAND Jules-Nikolaus Rippke, Dr. med. (MD), SWITZERLAND Sebastian Schmidt, GERMANY Tudor Daniel Cucos, MD, GERMANY Luis Alfredo Navas Contreras, MD, GERMANY Daniel Krahl, MD, GERMANY Marcus Streit, Prof., GERMANY
Incidence and Prevention of Deep Vein Thrombosis Using Thromboprophylaxis in Total Knee Replacement: A Prospective Clinical Study ePoster Presentation Amit Lakhani, MS, DNB, MRCPS(Glassg), MNAS, INDIA
Success of Debridement, Antibiotics, and Implant Retention vs Revision In Early And Late Prosthetic Joint Infections Following Primary TKA: A Prospective, Multicenter Study of 251 Cases ePoster Presentation Mark Zhu, MBChB, NEW ZEALAND Richard Rahardja, MBChB, BMedSc(Hons), NEW ZEALAND Laurens Manning, MBChB, AUSTRALIA Sarah Metcalf, MBChB, NEW ZEALAND Simon W. Young, MD, FRACS, NEW ZEALAND
Factors Associated With Failure and Survivorship Following Unicompartmental Knee Arthroplasty: A Single-Center Experience ePoster Presentation Anirudh K Gowd, MD, UNITED STATES Johannes F. Plate, MD, PhD, UNITED STATES Asher Lichtig, MD, UNITED STATES Orhan Yanmis, MD, UNITED STATES Gary G. Poehling, MD, UNITED STATES
Lateral Unicompartmental Knee Arthroplasty (UKA) Showed a Lower Risk of Failure Compared to Medial Unicompartmental Knee Arthroplasty in the Register of Prosthetic Orthopedic Implants (RIPO) ePoster Presentation Stefano Zaffagnini, MD, Prof., ITALY Domenico Alesi, MD, ITALY Barbara Bordini, Stat, ITALY Stefano Fratini, MD, ITALY Cristina Ancarani, Stat, ITALY Piero Agostinone, MD, ITALY Alberto Grassi, PhD, ITALY Giulio Maria Marcheggiani Muccioli, MD, PhD, Associate Professor, ITALY
Does 1000 Mg Ferric Carboxylate Maltose Have an Additional Benefit on the Haemoglobin Recovery Post Total Knee Arthroplasty? - A Comparison with 500 Mg of Ferric Carboxymaltose ePoster Presentation Adit Rajesh Maniar, MBBS, MS Orthopaedics, DNB Orthopaedics, INDIA Ashwini Khokhar, MS, INDIA Akshay Nayak, M.B.B.S, M.S , INDIA Naveen Chandar, MBBS, INDIA Abhinav Mishra, MS, DNB, INDIA Rajesh Maniar, INDIA
Intraoperative Surgeon-Performed vs. Conventional Anesthesiologist-Performed Continuous Adductor Canal Block In Total Knee Arthroplasty: A Randomized Controlled Trial ePoster Presentation Chayut Chaiperm, MD, THAILAND Srihatach Ngarmukos, MD, THAILAND Aree Tanavalee, MD, THAILAND Chotetawan Tanavalee, MD, THAILAND Wirinaree Kampitak, MD, THAILAND
Golfers Have Greater Preoperative and Equal Postoperative Function When Undergoing Total Knee Arthroplasty Compared to Non-Golfers ePoster Presentation Patrick G Robinson, MBChB, MRCS, MS, MBA, UNITED KINGDOM Robert Kay, MBChB, UNITED KINGDOM Deborah Macdonald, BA(Hons), UNITED KINGDOM Andrew Murray, MBChB, FFSEM, UNITED KINGDOM Nick David Clement, MBBS, MD, PhD, FRCS(Orth), UNITED KINGDOM
Antibiotic-Loaded Bone Cement with Colistin at Erythromycin Do Not Decrease Chronic TKA Pji at a Long-Term ePoster Presentation Daniel Pérez-Prieto, MD, SPAIN Albert Fontanellas, MD, SPAIN Pedro Hinarejos, MD, PhD, SPAIN Juan Francisco Sanchez-Soler, MD, PhD, SPAIN Raúl Torres-Claramunt, PhD, SPAIN Joan Carles Monllau, MD, PhD, Prof., SPAIN
Unicompartmental Knee Replacement and Femoropatellar Arthritis. 110 Ahroplasties with a Mean Follow p of 6 years. ePoster Presentation Stefano Gaggiotti, MD, ARGENTINA Santino Gaggiotti, MD, ARGENTINA Julio Cesar Ringa Gabriel Gaggiotti, MD, ARGENTINA
Novel Technique For Surgeon-Placed Nerve Block And Continuous Nerve Block In Total Knee Arthroplasty. A Cadaveric Study ePoster Presentation Daniel E Matthews, MD, FAAOS, UNITED STATES
Changes In CPAK Classification and Its Characteristics before and after Kinematic Alignment TKA ePoster Presentation Manabu Akagawa, MD, PhD, JAPAN ヒデトモサイトウ, MD, PhD, JAPAN Naohisa Miyakoshi, MD, PhD, JAPAN
Relationship Between The Femoral And Tibial Component Positions And Postoperative Knee Range Of Motion After Posterior-Stabilized Total Knee Arthroplasty ePoster Presentation Mitsuru Hanada, MD, PhD, JAPAN Yukihiro Matsuyama, MD, PhD, Prof., JAPAN
Hip-Knee-Ankle Angle Affects Medial and Lateral Tibiofemoral Compressive Forces More Significantly than Joint Line Obliquity in Patients Post Total Knee Arthroplasty ePoster Presentation David A. Parker, MBBS, BMedSc, FRACS, AUSTRALIA Myles R. J. Coolican, FRACS, AUSTRALIA Brett A. Fritsch, MBBS BSc(Med), FRACS, FAOrthA, AUSTRALIA Alexander S. Nicholls, MSc, FRACS, AUSTRALIA Payam Tarassoli, MBChB, BSc, DipSEM, MD, FRCS, AUSTRALIA Yoong Lim, BEng, PhD, AUSTRALIA
Comparison of Outcomes between Fungal and Non-fungal Periprosthetic Joint Infections in Total Knee Arthroplasty: A Propensity Score-Matched Analysis ePoster Presentation Hong Yeol Yang, MD, PhD, KOREA, REPUBLIC OF Jong-Keun Seon, MD, PhD, Prof, KOREA, REPUBLIC OF
Compliance and Outcome of Osteoporosis Treatment After Total Knee Arthroplasty ePoster Presentation Yun Seong Choi, MD, KOREA, REPUBLIC OF Seung Hoon Lee, MD, KOREA, REPUBLIC OF Jung Ro Yoon, MD, KOREA, REPUBLIC OF Young Bin Shin, MD, KOREA, REPUBLIC OF Tae Hyuk Yoon, MD, KOREA, REPUBLIC OF
Combined Fixed-Bearing Unicompartmental Knee Arthroplasty and Anterior Cruciate Ligament Reconstruction ePoster Presentation Claudio Legnani, MD, ITALY Enrico Borgo, MD, ITALY Vittorio Macchi, MD, ITALY Alberto Ventura, MD, ITALY
The Statistical Fragility of Tourniquet Use In Total Knee Arthroplasty: A Systematic Review ePoster Presentation Kyle William Lawrence, BS, UNITED STATES John K Cordero, MD, UNITED STATES Ashley Brown, BS, UNITED STATES Xinning Li, MD, UNITED STATES Brett Hayden, MD, UNITED STATES Robert L Parisien, MD, UNITED STATES
Antero-Posterior Translation of Mobile-Bearing in Mobile-Bearing Unicompartmental Knee Arthroplasty ePoster Presentation Takahiro Arakawa, MD, JAPAN Kenichi Kono, MD, PhD, JAPAN Tetsuya TOMITA, MD, PhD, JAPAN Shuji Taketomi, MD, PhD, JAPAN Ryota Yamagami, MD, JAPAN Kohei Kawaguchi, MD, PhD, JAPAN Tomofumi Kage, JAPAN Ryo Murakami, MD, JAPAN Hiroshi Inui, PhD, JAPAN Sakae Tanaka, MD, PhD, JAPAN
Evaluation of The Safety And Efficacy of The Fully Automated Active Robotic System In Robotic Assisted Total Knee Arthroplasty ePoster Presentation Sanjay B. Londhe, MS, FRCS, FRCSI, MCh, INDIA Santosh Chandrashekar Shetty, MS, INDIA Ashit Hasmukhbhai Shah, FRCS Orth, M ChOrth, M S Orth, D N B Orth, INDIA Niraj Vora, MS,MRCS, INDIA Vijay Shetty, MD, MSc, FRCSC, INDIA Rakesh Nair, MS, INDIA Clevio Joao Baptista Desouza, MD, INDIA Farheen Khan, B.Tech, INDIA
Association Between The Femoral And Tibial Component Positions and Intraoperative Knee Kinematics In Posterior-Stabilized Total Knee Arthroplasty ePoster Presentation Mitsuru Hanada, MD, PhD, JAPAN Yukihiro Matsuyama, MD, PhD, Prof., JAPAN
Effect of Altered Knee Joint Loading Pattern in Gait Biomechanics of Total Knee Arthroplasty Patient ePoster Presentation Sang Jin Lee, MD, PhD, KOREA, REPUBLIC OF

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Subtalar Joint Compensation using Full-length Standing Lower Extremity Anteroposterior Radiograph after Total Knee Arthroplasty for Varus Osteoarthritis in Nara Medical University Hospital with 2-year Follow-up

Subtalar Joint Compensation using Full-length Standing Lower Extremity Anteroposterior Radiograph after Total Knee Arthroplasty for Varus Osteoarthritis in Nara Medical University Hospital with 2-year Follow-up

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Conclusion

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Subtalar Joint Compensation using Full-length Standing Lower Extremity Anteroposterior Radiograph after Total Knee Arthroplasty for Varus Osteoarthritis in Nara Medical University Hospital with 2-year Follow-up

Subtalar Joint Compensation using Full-length Standing Lower Extremity Anteroposterior Radiograph after Total Knee Arthroplasty for Varus Osteoarthritis in Nara Medical University Hospital with 2-year Follow-up

Background

Methods

Results

Conclusion

More 2023 ISAKOS Congress Content