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Short- to Mid-Term Clinical Outcomes of Posterior-Stabilized Cementless Total Knee Arthroplasty with Trabecular Metal Components
- Source :
- Therapeutics and Clinical Risk Management, Vol Volume 17, Pp 809-816 (2021)
- Publication Year :
- 2021
- Publisher :
- Dove Medical Press, 2021.
-
Abstract
- Takashige Momose,1 Yukio Nakamura,2 Masaki Nakano,2 Takashi Maeda,1 Susumu Morioka,3 Atsushi Sobajima,1 Yukio Nakatsuchi,1 Jun Takahashi,2 Masashi Nawata1 1Department of Orthopaedic Surgery, Marunouchi Hospital, Matsumoto, Nagano, 390-8601, Japan; 2Department of Orthopaedic Surgery, Shinshu University School of Medicine, Matsumoto, Nagano, 390-8621, Japan; 3Department of Orthopaedic Surgery, Chikuma Central Hospital, Chikuma, Nagano, 387– 8512, JapanCorrespondence: Yukio NakamuraDepartment of Orthopaedic Surgery, Shinshu University School of Medicine, 3-1-1 Asahi, Matsumoto, Nagano, 390-8621, JapanTel +81-263-37-2659Fax +81-263-35-8844Email yxn14@aol.jpObjective: This study aimed to evaluate the short- to mid-term clinical results of posterior-stabilized trabecular metal total knee arthroplasty (TKA) with cementless fixation of all components and investigate the radiographic changes of tibial and patellar components and cut bone surfaces over time.Methods: We retrospectively collected the data of 128 knees from 88 consecutive patients who had undergone initial TKA with NexGen LPS-Flex TM implants. A total of 66 knees from 45 patients (mean ± standard deviation age: 70.3 ± 7.5 years) met the selection criteria, which had been employed cementless fixation of all parts and at least 3 years of postoperative follow-up duration. Clinical evaluations included range of motion, conventional knee score, function score, postoperative complications, and revision. For radiological evaluations, the bone contact surface of each implant was divided into 7 zones for tibial component and 2 zones for patellar component. Each region was examined immediately after surgery, at 6 and 12 months, and then every year afterwards.Results: The mean observation period of 45 subjects was 4.2 years. Adequate fixation of tibial components was maintained during follow-up, although the patellar components of 2 knees required revision after repeated falls. No loosening was observed in any implants. The initial gap in tibial components disappeared in all knees, and a reactive line remained in 4 knees. There were no revisions, except for 2 cases, which were ascribed to patellar component fracture caused by repeated falls.Conclusion: Cementless posterior-stabilized trabecular metal TKA appears to be a good surgical option. Longer-term examination for revision cases is required to validate our results.Keywords: cementless fixation, short- to mid-term clinical outcomes, total knee arthroplasty, trabecular metal components
Details
- Language :
- English
- ISSN :
- 1178203X
- Volume :
- ume 17
- Database :
- Directory of Open Access Journals
- Journal :
- Therapeutics and Clinical Risk Management
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.18d8acd51557409cb49ae60f0d75259d
- Document Type :
- article