Summary: In most patients, patellofemoral arthroplasty consistently improves stair function and anterior knee pain, and produces reliable and reproducible outcomes in the non-academic setting.

Introduction

Patellofemoral arthroplasty (PFA) has historically had mixed results, but modern onlay designs have shown increasing clinical success. Contemporary techniques and components allow avoidance of total knee replacement and result in reliable clinical improvements. A relatively infrequent diagnosis, it is important to report the results and outcomes of PFA in the community setting, by non-academic programs. The purpose of this study is to evaluate the mid-term outcomes of PFA from two community programs in a case series.

Methods

From 2011 to 2017, 425 patellofemoral arthroplasties were performed by four surgeons at two community programs. The majority of patients were female (327/425, 77%). Followup was performed for minimum 2 years, with average 7.1 years followup. Patient selection criteria and surgical technique tips will be described. Statistical analysis of the two groups was performed with Student's two-tailed T test.

Results

There were no intraoperative abandonments to total knee replacement. There were 8 lateral releases performed. Knee Society Scores increased from average 78 to 96 (p< 0.05). The impairments leading to low preoperative scores, and also serving as areas of most improvement, were stair climbing and pain relief. Three patients developed asymptomatic patellar avascular necrosis. 15 patients (3.5%) required revision to TKA at average 6.2 years.

Discussion

Isolated patellofemoral arthritis is an infrequent diagnosis, and PFA an uncommonly performed procedure. In this cohort of patients treated by community surgeons, with careful patient selection, patellofemoral arthroplasty can have excellent mid-term results. Risk of conversion to total knee arthroplasty is much lower than previous reports. Strict adherence to proper selection criteria is imperative to achieve reliable clinical outcomes. In most patients, patellofemoral arthroplasty consistently improves stair function and anterior knee pain. With careful attention to patient selection and two particular surgical steps, modern techniques are reliable and reproducible for patellofemoral arthroplasty in the nonacademic setting.

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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
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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
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Anatomical distribution of radiological OA Influences the Outcome of TKA ePoster Presentation Johanna Elliott, MB, BS, B.Med Sci, Master Science, GERMANY
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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
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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, CHILE Alex Vaisman, MD, Prof., CHILE
Differences In Pain, Sleep Status And Functional Recovery Between TKA And UKA ePoster Presentation Takeo Mammoto, MD, JAPAN
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
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
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
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
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
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
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
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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
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
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, MS , INDIA Farheen Khan, B.Tech, INDIA
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, UNITED STATES 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
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
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
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
Implant Size and Outcome Differences of Knees in Same Patient for Simultaneous vs Staged Bilateral TKA ePoster Presentation Alexander P. Sah, MD, UNITED STATES
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
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
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
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
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, UNITED STATES Fumiyoshi Kawashima, MD, JAPAN Hiroshi Takagi, MD, PhD, JAPAN Koji Kanzaki, Prof., JAPAN

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Patellofemoral Arthroplasty In Community Programs: Case Series of 425 Patients

Patellofemoral Arthroplasty In Community Programs: Case Series of 425 Patients

Introduction

Methods

Results

Discussion

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Patellofemoral Arthroplasty In Community Programs: Case Series of 425 Patients

Patellofemoral Arthroplasty In Community Programs: Case Series of 425 Patients

Introduction

Methods

Results

Discussion

More 2023 ISAKOS Congress Content