A total of 50 total knee arthroplasty (TKA) patients, 25 traditional and 25 minimally invasive surgical (MIS), underwent computed tomography scans to determine if a loss of accuracy in implant alignment occurred when a surgeon switched from a traditional medial parapatellar arthrotomy to a mini-subvastus surgical technique. Surgical accuracy was determined by comparing the computed tomography measured implant alignment with the surgical alignment goals. There was no loss in accuracy in the implantation of the tibial component with the mini-subvastus technique. The mean variance for the tibial coronal alignment was 1.03 degrees for the traditional TKA and 1.00 degrees for the MIS TKA (P = .183). Similarly, there was no difference in the mean variance for the posterior tibial slope (P = .054). Femoral coronal alignment was less accurate with the MIS procedure, mean variance of 1.04 degrees and 1.71 degrees for the traditional and MIS TKA, respectively (P = .045). Instrumentation and surgical technique concerns that led to this loss in accuracy were determined.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.arth.2007.05.034 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Optogenetics has transformed the study of neural circuit function, but limitations in its application to species with large brains, such as non-human primates (NHPs), remain. A major challenge in NHP optogenetics is delivering light to sufficiently large volumes of deep neural tissue with high spatiotemporal precision, without simultaneously affecting superficial tissue. To overcome these limitations, we recently developed and tested in NHP cortex, the Utah Optrode Array (UOA).
View Article and Find Full Text PDFTherapeutic functions of medical implants from various material categories with integrated biomacromolecular systems.
Front Bioeng Biotechnol
January 2025
Federal University of Alagoas, Center of Technology, Maceió, Brazil.
Medical implants are designed to replace missing parts or improve body functions and must be capable of providing structural support or therapeutic intervention for a medical condition. Advances in materials science have enabled the development of devices made from metals, polymers, bioceramics, and composites, each with its specific advantages and limitations. This review analyzes the incorporation of biopolymers, proteins, and other biomacromolecules into implants, focusing on their role in biological integration and therapeutic functions.
View Article and Find Full Text PDFDual-sided centripetal microgrooved poly (D,L-lactide-co-caprolactone) disk encased in immune-regulating hydrogels for enhanced bone regeneration.
Mater Today Bio
February 2025
China Uruguay Bio-Nano Pharmaceutical Joint Laboratory, Institute of Neuroregeneration and Neurorehabilitation, Qingdao University, 308 Ningxia Road, Qingdao, 266071, Shandong, China.
Well-designed artificial scaffolds are urgently needed due to the limited self-repair capacity of bone, which hampers effective regeneration in critical defects. Optimal scaffolds must provide physical guidance to recruit cells and immune regulation to improve the regenerative microenvironment. This study presents a novel scaffold composed of dual-sided centripetal microgrooved poly(D,L-lactide-co-caprolactone) (PLCL) film combined with a dynamic hydrogel containing prednisolone (PLS)-loaded Prussian blue nanoparticles (PB@PLS).
View Article and Find Full Text PDFMobilization of subcutaneous fascia contributes to the vascularization and function of acellular adipose matrix via formation of vascular matrix complex.
Mater Today Bio
February 2025
The Department of Plastic and Cosmetic Surgery, Nanfang Hospital, Southern Medical University, 1838 Guangzhou North Road, Guangzhou, 510515, Guangdong, China.
Regenerative biomaterials are commonly used for soft-tissue repair in both pre-clinical and clinical settings, but their effectiveness is often limited by poor regenerative outcomes and volume loss. Efficient vascularization is crucial for the long-term survival and function of these biomaterials in vivo. Despite numerous pro-vascularization strategies developed over the past decades, the fundamental mechanisms of vascularization in regenerative biomaterials remain largely unexplored.
View Article and Find Full Text PDFIndividualized total knee arthroplasty achieves better functional results than off-the-shelf implants in patients undergoing personalized coronal alignment.
Knee
January 2025
IULS-University Institute for Locomotion and Sports, Pasteur 2 Hospital, University Côte d'Azur, Nice, France; ICARE Team, Côte d'Azur University, Inserm, CNRS, Valrose Institute of Biology, Nice, France. Electronic address:
Background: Several studies have demonstrated the interest in patient-specific custom cutting guides in total knee arthroplasty (TKA), but clinical improvement remains debated. The purpose of this study was to evaluate the functional outcomes (Forgotten Joint Score, FJS) of patients undergoing individualized TKA compared with those receiving off-the-shelf (OTS) implants, both using patient-specific cutting guides with personalized alignment over a minimum follow up period of 12 months. We hypothesized that individualized TKA demonstrates significantly better functional outcomes than OTS TKA (FJS and percentage of patients reaching the minimum clinically important difference).
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!