Home / 2023 Congress / Abstracts

Surgically Modifiable Skeletal and Soft Tissue Variables and the Medial Pivot of the Knee

Peter James McEwen, MBBS FRACS(Orth) FAOrthA DIpModLang
AUSTRALIA

myRating

Surgically Modifiable Skeletal and Soft Tissue Variables and the Medial Pivot of the Knee

Peter James McEwen, MBBS FRACS(Orth) FAOrthA DIpModLang , AUSTRALIA

Orthopaedic Research Institute of Queensland, Townsville, Queensland, AUSTRALIA

2023 Congress ePoster Presentation 2023 Congress Not yet rated

Anatomic Location

Knee

Anatomic Structure

Bones

Diagnosis / Condition

Osteoarthritis

Treatment / Technique

Total Joint Replacement

Summary: In an arthritic knee and balanced TKA the posterior condylar angle (relative to the sulcus line) correlates with the medial pivot range of the knee.

Introduction.
The pivot range of the knee correlates strongly with the TT-TG offset range of the knee. Understanding what skeletal and soft tissue variables that affect the pivot mechanics of the knee, especially those that are surgically modifiable, is important in optimising pivot mechanics and therefore the TT-TG offset.

Method.
Thirty-three primary, cruciate-retaining total knee arthroplasties were completed using an enhanced optical navigation system. Digital measurements of multiple skeletal and soft tissue balance parameters were taken in both the native and post-implantation states. After testing for normality, continuous variables were analysed for linear correlations with the Pearson Correlation Coefficient. Multiple linear regression was used for multivariate analysis.

Results.
The posterior condylar angle (PCA) from the sulcus line (SL) was the only measured variable with a significant correlation with preoperative pivot range (Pearson, R2=0.266, p=0.002). The PCA and change in medio-lateral position of the most distal point of the trochlear between native and post-implantation states (delta trochlea ML) were the only two measured variables with significant correlations with post-operative pivot range (Pearson, R2=0.443 and p<0.0001 / R2=0.224 and p<0.005 respectively. Multiple linear regression revealed significant effects of both the PCA and delta trochlear ML measures on post-operative pivot range (p=0.0005 and p=0.046 respectively). No soft tissue balance parameter had a significant interaction with post-operative pivot range.

Discussion.
Much attention has been paid to prosthetic design, component alignment, and ligament balance in an attempt to replicate the normal medial pivot TKA which functions to neutralize the TT-TG offset when the patella is under maximum load. The results of this study indicate that in a balanced TKA, the relationship between the posterior condyles and the sulcus line may be an important consideration. It is therefore possible that the PFJ drives the medial pivot of the knee rather than the converse.

Conclusion.
In a balanced CR TKA, patellofemoral skeletal variables, in particular, the PCA, correlate with medial pivot range. It is unknown if prosthetic modification of the PCA subsequently changes the medial pivot range.

Techniques and Objective Outcomes in the Surgical Treatment of Chronic Posterolateral Corner Knee Injuries: An Updated Systematic Review Reflecting the 2019 Expert Consensus Statement ePoster Presentation Garrett Jackson, MD, UNITED STATES Harkirat Jawanda, BS, UNITED STATES Enzo Salviato Mameri, MD, MSc, BRAZIL Anjay Batra, BS, UNITED STATES Derrick Michael Knapik, MD, UNITED STATES Robert F. LaPrade, MD, PhD, UNITED STATES Nikhil N. Verma, MD, UNITED STATES Jorge Chahla, MD, PhD, UNITED STATES
Plantar Pressure Pattern During Walking In Patient With Medial Knee Osteoarthritis ePoster Presentation Kyohei Nishida , MD, PhD, JAPAN Kanto Nagai, MD, PhD, JAPAN Noriyuki Kanzaki, MD, PhD, JAPAN Yuichi Hoshino, MD, PhD, JAPAN Takehiko Matsushita, MD, PhD, JAPAN Ryosuke Kuroda, MD, PhD, JAPAN
Developing an Experimental Model of Early Knee Osteoarthritis after Medial Meniscus Posterior Root Release: An In Vivo Study ePoster Presentation Lika Dzidzishvili, MD, PhD, SPAIN Irene Isabel López-Torres, MD, PhD, SPAIN Emilio Calvo, MD, PhD, MBA, SPAIN
Osteoarthritis Causes Quadriceps and Hamstring Dynapenia as Measured with DINABANG ePoster Presentation Dario Santos, PhD, URUGUAY Juan Miguel Del Castillo, MD, URUGUAY Rene Ledezma, M Sc, URUGUAY Andrea Mattiozzi, MD, MSc, URUGUAY Rodrigo Barboza, Engr., URUGUAY Jorge Dominguez, Engr., URUGUAY Cristina Touriño, MD; PhD, URUGUAY Franco Simini, Prof., URUGUAY
Open-Wedge High Tibial Osteotomy with a Slight Valgus Correction From Neutral Limb Alignment Achieves Clinical Improvements Comparable with Those for Knees with Varus Deformity ePoster Presentation Junya Itou, MD, PhD, JAPAN Umit Kuwa, MD, PhD, JAPAN Masafumi Itoh, MD, PhD, JAPAN Takehiro Shimizu, MD, JAPAN Ken Okazaki, MD, PhD, JAPAN
Advanced Therapy with Mesenchimal Stromal Cell for Knee Osteoarthritis or Chondral Lesions: A Systematic Review ePoster Presentation Caio Gomes Tabet, MD, BRAZIL Rafael Pacheco, MD, BRAZIL Ana Luiza Cabrera Martimbianco, BRAZIL Daniela Franco Bueno, DDS, PhD, BRAZIL Rachel Riera, Prof., BRAZIL Arnaldo J. Hernandez, MD, PhD, BRAZIL Tiago Lazzaretti Fernandes, MD, PhD, MSc, Post-Doctorate, BRAZIL
Serial Assessment Of Bone Healing After Medial Opening Wedge High Tibial Osteotomy Without Bone Graft ePoster Presentation Siyoung Song, MD, PhD, KOREA, REPUBLIC OF Sung Yup Hong, MD, KOREA, REPUBLIC OF Hyobeom Lee, MD, KOREA, REPUBLIC OF
Mechanical Axis Changes and its Related Factors on the Whole Leg Preoperative Planning X-Rays under Bilateral and Unilateral Weight Bearing in HTO Patients ePoster Presentation Tomomasa Nakamura, MD, PhD, JAPAN Takashi Hoshino, MD, PhD, JAPAN Hiroki Katagiri, MD, PhD, JAPAN Aritoshi Yoshihara, MD, JAPAN Masaki Amemiya, MD, PhD, JAPAN Yusuke Nakagawa, JAPAN Nobutake Ozeki, JAPAN Hideyuki Koga, Prof., MD, PhD, JAPAN
Alteration of Stress Distribution Patterns Across the Patellofemoral Joint After Neutral Wedge High Tibial Osteotomy: An Evaluation Using Computed Tomography Osteoabsorptiometry ePoster Presentation Yoshio Nishida, MD, JAPAN Koji Iwasaki, MD, PhD, JAPAN Masatake Matsuoka, PhD, JAPAN Tomohiro Onodera, MD, PhD, JAPAN Eiji Kondo, MD, PhD, JAPAN Norimasa Iwasaki, MD, PhD, JAPAN
Varus Alignment Was a Risk Factor For Osteoarthritis of the Knee After the Anterior Cruciate Ligament Injury: A Systematic Review and Meta-Analysis ePoster Presentation Junya Itou, MD, PhD, JAPAN Masafumi Itoh, MD, PhD, JAPAN Umit Kuwa, MD, PhD, JAPAN Ken Okazaki, MD, PhD, JAPAN Kiyotaka Iwasaki, Prof, JAPAN
Pre and Postoperative Changes in Alignment of the Ankle and Subtalar Joint in Patients Undergoing High Tibial Osteotomy for Knee Osteoarthritis ePoster Presentation Yuki Nishimura, MD, JAPAN Munehiro Ogawa, MD, PhD, JAPAN Kensuke Okamura, MD, JAPAN Yusuke Inagaki, MD, PhD, JAPAN Yasuhito Tanaka, Prof., JAPAN
MRI Findings of Medial Collateral Ligament Complex In Early Osteoarthritis of the Knee ePoster Presentation Hiroaki Tsukamoto, MD,PhD, JAPAN Hidetomo Saito, MD, PhD, JAPAN Manabu Akagawa, MD, PhD, JAPAN Naohisa Miyakoshi, MD, PhD, JAPAN
Morphologic Feature of the Proximal Tibia In Middle-Aged Women with Early Knee Osteoarthritis from Iwaki Cohort Study ePoster Presentation Hikaru Kristi Ishibashi, MD, JAPAN Eiji Sasaki, MD, PhD, JAPAN Takahiro Tsushima, MD, PhD, JAPAN Yuka Kimura, MD, PhD, JAPAN Yasuyuki Ishibashi, MD, JAPAN Daisuke Chiba, MD, PhD, JAPAN Yuji Yamamoto, MD, JAPAN
Cementless Metal-Backed Patella: Back For Good? Excellent Short-Term Survivorship - No Loosening On 2 To 5 Years Follow Up. ePoster Presentation Fransiska Dhyana Guerreiro , MBBS, MSc, MRCS, UNITED KINGDOM Niall Alastair Kenneth Flynn, MB ChB, FRCS, FRCS(Tr & Orth), UNITED KINGDOM
Subsequent Surgeries Following Osteochondral Allograft and Osteochondral Autograft at up to Ten Years: An Analysis of over 2,000 Patients ePoster Presentation Patrick J Burroughs, MD, UNITED STATES Joseph B Kahan, MD, UNITED STATES Jay Moran, BS, UNITED STATES Stephen M Gillinov, AB, UNITED STATES Peter Y Joo, MD, MPH, UNITED STATES Christopher Schneble, MD, UNITED STATES Harold Gregory Moore, MD, UNITED STATES Jonathan Grauer, UNITED STATES Michael J. Medvecky, MD, UNITED STATES
Evaluation of Genetic Markers In Athletes And Patients With Cartilage Injury and Osteoarthritis Non-Responsive For Conservative Treatment – Methods Description ePoster Presentation Joao Vitor De Castro Fernandes, MD, MSc, BRAZIL Sergio Ferreira Barbosa Junior, MD, BRAZIL Ricardo di Lazzaro Filho, MD, MsC, BRAZIL Riccardo Gomes Gobbi, MD, PhD, BRAZIL Arnaldo J. Hernandez, MD, PhD, BRAZIL Marcia Uchoa De Rezende, MD, BRAZIL Tiago Lazzaretti Fernandes, MD, PhD, MSc, Post-Doctorate, BRAZIL
The Effect Of Medial Closing Wedge Distal Femoral Varus Osteotomy On Contact Stress Distribution Pattern Of The Femorotibial Joint ePoster Presentation Masanari Hamasaki, MD,PhD, JAPAN Eiji Kondo, MD, PhD, JAPAN Koji Yabuuchi, MD, JAPAN Koji Iwasaki, MD, PhD, JAPAN Yuki Suzuki, 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
Medial Closed-Wedge Distal Femoral Varus Osteotomy Improves Patellofemoral Joint Congruity ePoster Presentation Masanari Hamasaki, MD,PhD, JAPAN Eiji Kondo, MD, PhD, JAPAN Koji Yabuuchi, MD, JAPAN Koji Iwasaki, MD, PhD, JAPAN Yuki Suzuki, 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
Short-Term Outcomes Of Dome-Shaped High Tibial Osteotomy Combined With All-inside Anterior Cruciate Ligament Reconstruction ePoster Presentation Toshiaki Takahashi, MD, PhD, Prof., JAPAN Seiji Watanabe, MD, JAPAN
Assessing The Relationship Between Knee Joint Biomechanics and Trunk Posture According To Osteoarthritis Severity ePoster Presentation Yuki Suzuki, MD, PhD, JAPAN Yasumitsu Ohkoshi, MD, JAPAN Kensaku Kawakami, Ph.D., JAPAN Kenta Shimizu, P.T., JAPAN Shuya Chida, P.T., JAPAN Kengo Ukishiro, PT, MS, JAPAN Tomohiro Onodera, MD, PhD, JAPAN Koji Iwasaki, MD, PhD, JAPAN Tatsunori Maeda, MD, JAPAN Shoji Suzuki, M.eng, JAPAN Eiji Kondo, MD, PhD, JAPAN Norimasa Iwasaki, MD, PhD, JAPAN
Accurate Alignment Correction and Satisfactory Clinical Outcomes After Personalised Valgus High Tibial Osteotomy With A New Patient-Specific Instrumentation: A First In Man Study ePoster Presentation Stefano Zaffagnini, MD, Prof., ITALY Giacomo Dal Fabbro, MD, AUSTRALIA Alberto Grassi, PhD, ITALY Alisdair MacLeod, UNITED KINGDOM Claudio Belvedere, PhD, ITALY Alberto Leardini, DPhil, ITALY
The Effectiveness of Computed Tomography in Lateral Hinge Fracture in Medial Opening Wedge High Tibial Osteotomy ePoster Presentation Masataka Ota, MD, JAPAN Atsushi Sato, MD, PhD, JAPAN Jun Oike, MD, PhD, JAPAN Kanako Izukashi, 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
No Significant Difference in Signs of Osteoarthritis after Anterior Cruciate Ligament Injuries Comparing Surgical and Conservative Treatment ePoster Presentation Miklos Mate, MD, HUNGARY Robert de Jonge, MD, HUNGARY Gergely Pánics, PhD, HUNGARY
A New High-Flexion Design Total Knee Prosthesis: A Nine To Eleven-Year Follow-Up Study 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
Factors of Patella Height in the Open Wedge High Tibial Osteotomy Patients ePoster Presentation Takashi Hoshino, MD, PhD, JAPAN Hiroki Katagiri, MD, PhD, JAPAN Tomomasa Nakamura, MD, PhD, JAPAN Nobutake Ozeki, JAPAN Yusuke Nakagawa, JAPAN Mai Katakura, MD, PhD, JAPAN Masaki Amemiya, MD, PhD, JAPAN Aritoshi Yoshihara, MD, JAPAN Kazuyoshi Yagishita, MD, PhD, JAPAN Ichiro Sekiya, MD, PhD, JAPAN Hideyuki Koga, Prof., MD, PhD, JAPAN
Lowered Patella and Higher Age the Relevant Predictors of Patellofemoral Osteoarthritis after Anterior Cruciate Ligament Reconstruction of the Knee ePoster Presentation Takayuki Okumo, MD, PhD, JAPAN Atsushi Sato, MD, PhD, JAPAN Masataka Ota, MD, JAPAN Kanako Izukashi, MD, JAPAN Jun Oike, MD, PhD, JAPAN Saki Yagura, MD, JAPAN Naoki Okuma, MD, JAPAN Takayuki Koya, MD, PhD, JAPAN Fumiyoshi Kawashima, MD, JAPAN Hiroshi Takagi, MD, PhD, JAPAN Koji Kanzaki, Prof., JAPAN
Digital Planning Using Medial Proximal Tibial Angle and 3D-Printed Patient-Specific Instrument in Medial Opening Wedge High Tibial Osteotomy Could Provide an Accurate and Reliable Correction for Medial Knee Osteoarthritis ePoster Presentation Jia-Lin Wu, MD, MS, TAIWAN Kuang-Yuan Goh, MD, TAIWAN Shih-Han Lee, MD, TAIWAN Shen-Han Wu, MD, TAIWAN
Medial Meniscal Extrusion is Significantly Increased in Meniscal Root Tears and Associated with Increased Incidence of Knee Osteoarthritis: A Systematic Review with Meta-Analysis ePoster Presentation Francis Fong, SINGAPORE Bryan Wei Loong Ong, MBBS, SINGAPORE Yee-Han Dave Lee, MBBS, FRCS(Ortho), SINGAPORE
Morphological Analyses of Distal Femur For Surgical Reference in Bi-Plane Distal Femoral Osteotomy ePoster Presentation Shohei Sano, MD, JAPAN Takehiko Matsushita, MD, PhD, JAPAN Naosuke Nagata, MD, JAPAN Koji Nukuto, MD, PhD, UNITED STATES Kyohei Nishida , MD, PhD, JAPAN Kanto Nagai, MD, PhD, JAPAN Noriyuki Kanzaki, MD, PhD, JAPAN Yuichi Hoshino, MD, PhD, JAPAN Ryosuke Kuroda, MD, PhD, JAPAN
One-Leg Flexion View For The Tibiofemoral Joint Space Assessment ePoster Presentation Danaithep Limskul, MD, THAILAND Maruay Tanayavong, MD, THAILAND Srihatach Ngarmukos, MD, THAILAND Aree Tanavalee, MD, THAILAND Thanathep Tanpowpong, MD, THAILAND
Extent of Preoperative Medial Meniscal Extrusion Influences Intermediate-Term Outcomes after Medial Opening-Wedge High Tibial Osteotomy ePoster Presentation Hong Yeol Yang, MD, PhD, KOREA, REPUBLIC OF Jong-Keun Seon, MD, PhD, Prof, KOREA, REPUBLIC OF
Investigation Of The Relationship Between Responder Rate To Leucocyte-Poor Platelet Rich Plasma (LP-PRP) Therapy and %mechanical axis (%Ma) In Patients With Medial Type Knee Osteoarthritis (KOA) ePoster Presentation Ryosuke Nakajima, MD, JAPAN Yoshitomo Saita, MD, PhD, JAPAN Sayuri Uchino, MD, PhD, JAPAN Yasumasa Momoi , MD, JAPAN Nanako Yamamoto, MD, JAPAN Haruka Kaneko, JAPAN Mitsuaki Kubota, MD, PhD, JAPAN Muneaki Ishijima, MD, PhD, JAPAN
Appropriate Patient Selection Based on Joint Line Convergence Angle Minimizes Difference in Mechanical Axis between Standing and Supine Positions after High Tibial Osteotomy ePoster Presentation Naosuke Nagata, MD, JAPAN Takehiko Matsushita, MD, PhD, JAPAN Kyohei Nishida , MD, PhD, JAPAN Kanto Nagai, MD, PhD, JAPAN Noriyuki Kanzaki, MD, PhD, JAPAN Yuichi Hoshino, MD, PhD, JAPAN Ryosuke Kuroda, MD, PhD, JAPAN
A Finite Element Analysis of Appropriate Hinge Position in Medial Closing Wedge Distal Femoral Osteotomy to Prevent Hinge Fracture ePoster Presentation Atsuki Tanaka, MD, JAPAN Takehiko Matsushita, MD, PhD, JAPAN Tatsuya Nakatsuji, PhD, JAPAN Yosuke Katsui, BE, JAPAN Kanto Nagai, MD, PhD, JAPAN Toshiji Mukai, PhD, Prof, JAPAN Ryosuke Kuroda, MD, PhD, JAPAN
Analysis Of The Effect Of Osteoporosis On Varus Alignment Of End Stage Knee Osteoarthritis ePoster Presentation Seung Hoon Lee, MD, KOREA, REPUBLIC OF Jung Ro Yoon, MD, KOREA, REPUBLIC OF Tae Hyuk Yoon, MD, KOREA, REPUBLIC OF Young Bin Shin, MD, KOREA, REPUBLIC OF

Menu

Search Filters

Surgically Modifiable Skeletal and Soft Tissue Variables and the Medial Pivot of the Knee

Surgically Modifiable Skeletal and Soft Tissue Variables and the Medial Pivot of the Knee

More 2023 Congress Knee Osteoarthritis ePosters

More 2023 ISAKOS Congress Content

Menu

Search Filters

Sign-in to ISAKOS

Surgically Modifiable Skeletal and Soft Tissue Variables and the Medial Pivot of the Knee

Surgically Modifiable Skeletal and Soft Tissue Variables and the Medial Pivot of the Knee

More 2023 ISAKOS Congress Content