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Factors Associated With Failure and Survivorship Following Unicompartmental Knee Arthroplasty: A Single-Center Experience

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Factors Associated With Failure and Survivorship Following Unicompartmental Knee Arthroplasty: A Single-Center Experience

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

Wake Forest University Baptist Medical Center, Winston-Salem, North Carolina, UNITED STATES

2023 Congress ePoster Presentation 2023 Congress Not yet rated

Sports Medicine

Orthopaedic Sports Medicine Outcome Studies

Diagnosis / Condition

Arthritis

Treatment / Technique

Arthroplasty

Summary: Unicompartmental Knee Arthroplasty without restrictive indications may successfully used to treat single compartment arthritis.

Purpose

The purpose of this study was to identify patient factors and surgical characteristics predictive of Unicompatrmental Knee Arthroplasty (UKA) failure to determine additional perioperative factors associated with poor outcomes following UKA.

Methods

A prospectively maintained institutional joint registry was queried at a single academic center for all patients that underwent UKA between January 2010 – December 2016. Oxford outcome scores were collected both pre-operatively, at 6-months post-operatively, and annually from date of surgery. Patients were seen annually in clinic, and those without appointments were contacted via email for follow-up. The conversion to TKA was measured for all patients. Demographic, radiographic (joint space), comorbidities, and operative data was reviewed to determine factors related to conversion to TKA and survivorship of primary implant.

Results

In total, 1,878 cases were performed, however, excluding multi-joint knees, there were a total of 1,186 knees in 1,014 patients with minimum 4-year follow-up. The mean age was 63.4±10.7 years and mean follow up was 76.4±17.4 months. Mean bmi was 32.3±6.5 kg/m2. (52.9% females, 47.1% males). There were 901 patients undergoing medial UKA, 122 patients undergoing lateral UKA, and 69 patients undergoing patellofemoral UKA. In total, 85 (7.2%) knees underwent conversion to TKA. Degree of preoperative valgus deformity (p=0.01), greater operative joint space (p=0.04), previous surgery (p=0.01), inlay implant (p=0.04), and pain syndrome (p=0.01) were associated with increased risk of revision surgery. Factors associated with decreased survivorship included patients with history of previous surgery (p<0.01), history of pain syndrome (p<0.01), and greater preoperative joint space (>2mm) (p<0.01). Lastly, there was no association of BMI to the predicted probability of conversion to TKA

Conclusion

Robotic-assisted UKA demonstrated favorable outcomes at 4-years with survivorship greater than 92%. The present series agree with emerging indications that do not exclude patients based on age, bmi, or degree of deformity, however, increased operative joint space, inlay design, history of surgery, and coexistence of pain syndrome are factors that increase risk of conversion to TKA.

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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
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
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
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
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
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
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
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
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
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
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
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

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Factors Associated With Failure and Survivorship Following Unicompartmental Knee Arthroplasty: A Single-Center Experience

Factors Associated With Failure and Survivorship Following Unicompartmental Knee Arthroplasty: A Single-Center Experience

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Factors Associated With Failure and Survivorship Following Unicompartmental Knee Arthroplasty: A Single-Center Experience

Factors Associated With Failure and Survivorship Following Unicompartmental Knee Arthroplasty: A Single-Center Experience

Purpose

Methods

Results

Conclusion

More 2023 ISAKOS Congress Content