Summary: Same-day arthroscopy within 2 years of UKA did not lead to infections following non-robotic medial or lateral UKA, demonstrating that knee arthroscopy can be performed safely and effectively in patients undergoing UKA to address any concomitant pathologies in the non-arthritic, adjacent compartment.

Introduction

Several studies have shown that knee arthroscopy prior to arthroplasty increases the risk of postoperative infection. Recent literature suggests waiting a minimum of 3-9 months after knee arthroscopy before undergoing knee arthroplasty (OR: 1.20; CI: 1.01-1.42; p = 0.035). The majority of data in the recent literature is comprised of national insurance databases or joint registries. These registries lack the specific data to determine the true incidence rates, which impedes accurate analysis of infections and revision risks. The purpose of this study was to determine if the rate of infection or implant failure was among patients who underwent knee arthroscopy prior to unilateral knee arthroplasty (UKA).

Methods

A consecutive series of two-hundred twenty-two knees that underwent a fixed-bearing medial or lateral UKA by a single surgeon without robotic assistance between 1999-2021 were included in the study. Patients were included in the preoperative arthroscopy group if they underwent an arthroscopy within 2 years prior to UKA, and the same-day arthroscopy group if they had an arthroscopy on the same day as the UKA was implanted. Patients underwent knee arthroscopy immediately prior to UKA to evaluate the opposite compartment for research purposes. Treatments included partial meniscectomy, and rarely a mild chondroplasty. All patients had postoperative follow-up visits at a minimum of 1 year following arthroscopy. Superficial infection was defined per the CDC criteria, and deep infections were defined as those that required surgical intervention.

Results

One-hundred sixty-one medial and sixty-one lateral UKAs were included. Twenty-four knees were in the preoperative arthroscopy group (18 medial, 6 lateral, age 64.0 ± 11.2 years, BMI=23.1 ± 3.7). Mean time from arthroscopy to UKA was 186 ± 163.9 days (range 28 to 651 days). One-hundred ninety-one knees were in the same-day arthroscopy group (136 medial, 55 lateral UKAs, age 65.7 ± 11.0 years, BMI 27.7±4.6). Seven knees were included in the no arthroscopy group (7 medial UKAs, 0 lateral UKAs, age 65.3 ± 9.5, BMI 30.9 ± 3.0). There were no significant differences in demographics between groups (p>0.05). No deep infections or periprosthetic joint infections (PJI) were seen in any of the groups. There were two superficial infections in the same-day arthroscopy group, both resolved after 14 and 22 days. No superficial infections were seen in the other two groups. There were no significant differences in infection rate between groups (p = 0.861).

Conclusion

Knee arthroscopy at the time of UKA was not associated with risk of superficial or deep infections of the knee after medial or lateral UKA. Knee arthroscopy immediately prior to knee arthroplasty is safe and effective to allow for thorough inspection of the joint.

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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
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
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
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
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
Anatomical distribution of radiological OA Influences the Outcome of TKA ePoster Presentation Johanna Elliott, MB, BS, B.Med Sci, Master Science, GERMANY
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 ePoster Presentation Jerre Co De Guzman, MD, PHILIPPINES Munehiro Ogawa, MD, PhD, JAPAN Yusuke Ozaki, MD, JAPAN Yasuhito Tanaka, Prof., JAPAN Yuki Nishimura, MD, JAPAN Maria Elizabeth Mercado, MD, MAS, PHILIPPINES
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
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
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
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

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Knee Arthroscopy Prior to UKA Does Not Cause Infection

Knee Arthroscopy Prior to UKA Does Not Cause Infection

Introduction

Methods

Results

Conclusion

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Knee Arthroscopy Prior to UKA Does Not Cause Infection

Knee Arthroscopy Prior to UKA Does Not Cause Infection

Introduction

Methods

Results

Conclusion

More 2023 ISAKOS Congress Content