Early Clinical and Radiological Outcomes of the Metaphyseally Fixed Totally Stabilized Knee Prosthesis in Primary Total Knee Arthroplasty

J Knee Surg DOI: 10.1055/s-0039-1683976The use of valgus–varus constrained (VVC) implant designs in primary total knee arthroplasty (TKA) is considered in situations of severe deformities, bone loss, and inadequate soft tissue balance. It is not known whether the use of such prosthesis designs may predispose to reduced function owing to its constraining design. The components are usually implanted with diaphyseal stem extensions to dissipate the increased forces. The totally stabilized (TS) implant is a contemporary VVC design with metaphyseal fixation only. It has a conforming articulation with increased rotational freedom compared with conventional VVC designs. The aim of this study was to assess whether the use of the contemporary TS implant with its metaphyseally fixed components would be associated with inferior outcomes compared with conventional standard primary posterior stabilized (PS) implants. We reviewed 38 consecutive complex primary TKAs performed using the metaphyseally fixed TS implant and 76 matched patients receiving primary PS TKA, at a minimum follow-up of 24 months. The mean follow-up was 61.1 months (24–102). Only patients with osteoarthritis were included. Clinical outcome was assessed using range of motion (ROM) and Oxford knee score (OKS). Radiographic assessment was performed using the femorotibial angle (FTA) at 6 weeks followed by assessment of bone–implant interface lucencies at final follow-up. There were no major early postoper...
Source: Journal of Knee Surgery - Category: Orthopaedics Authors: Tags: Original Article Source Type: research

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AbstractObjectiveTo investigate whether subjects with diabetes show accelerated knee joint structural degeneration over 4  years compared to diabetes-free controls.Materials and methodsTwo hundred forty-four participants with diabetes were selected from the Osteoarthritis Initiative cohort and matched with 244 diabetes-free controls. 3.0-T MRI scans of the right knee were obtained at baseline and 4-year follow-up. Evaluation of structural knee abnormalities was performed using the Whole-Organ Resonance Imaging Scoring system (WORMS). Linear regression analysis was conducted to compare structural temporal changes in ea...
Source: Skeletal Radiology - Category: Radiology Source Type: research
Conclusions: Fracture energy positively correlates with Sanders classification for DIACFs, which can be used to identify more severe fractures at greater risk of progressing to PTOA. Level of Evidence: Prognostic Level III. See Instructions for Authors for a complete description of levels of evidence.
Source: Journal of Orthopaedic Trauma - Category: Orthopaedics Tags: Original Article Source Type: research
In conclusion, the functional outcome of operatively treated tibial plateau fractures is satisfactory, with poorer functional outcome being associated with higher energy fractures. (Schatzker IV to VI) Majority of patients were able to return to their pre-injury employment but only a small minority were able to return to sports.
Source: Journal of Clinical Orthopaedics and Trauma - Category: Orthopaedics Source Type: research
Conclusion: ESRF patients who undergo THR experience improvements in functional outcome regardless of transplant status. There was no significant difference in postoperative functional outcomes between the two groups of patients, but patients with renal transplants are less likely to experience postoperative complications and have better survival.
Source: Indian Journal of Orthopaedics - Category: Orthopaedics Authors: Source Type: research
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Source: Journal of Orthopaedics - Category: Orthopaedics Source Type: research
Osteoarthritis (OA) is a degenerative joint disease characterized by loss of articular cartilage and progressive degradation. OA is the most common chronic joint disorder and a major cause of functional disability involving some loss of autonomy in older adults [1]. A recent systematic review reported the global prevalence of radiographic (rOA) and symptomatic (sxOA) knee OA as 45.1% and 15.7%, respectively, in people aged 60 years or older [2]. Of the 291 conditions in the Global Burden of Disease 2010 study, knee and hip OA was ranked as the 11th highest cause of global disability and 38th highest of disability-adjusted ...
Source: Maturitas - Category: Primary Care Authors: Source Type: research
ConclusionOur results verify that genetic variants ofOPG contribute to knee OA susceptibility in the population of northern China. These genetic associations may identify individuals at a particularly high risk of developing knee OA.
Source: Molecular Genetics & Genomic Medicine - Category: Genetics & Stem Cells Authors: Tags: ORIGINAL ARTICLE Source Type: research
Abstract Here, we report retention following surgical orthodontic treatment in a patient with vertical maxillary excess associated with temporomandibular joint osteoarthritis (TMJOA) and marked mandibular retrusion. The patient was a man aged 20 years 10 months who presented with the chief complaint of maxillary protrusion. The facial profile was of the convex type due to marked mandibular retrusion. In addition, the patient had a gummy smile. Intraoral findings revealed a Class II molar relation, +11 mm overjet, and 0 mm overbite. Mandibular dentition arch length discrepancy showed crowding of -2 mm, and the maxi...
Source: The Bulletin of Tokyo Dental College - Category: Dentistry Authors: Tags: Bull Tokyo Dent Coll Source Type: research
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Source: European Journal of Orthopaedic Surgery and Traumatology - Category: Orthopaedics Source Type: research
This study shows that despite the excellent control of ankle laxity, severe radiographic changes (grade 2) continue to evolve in the long term. This study indicates a good long-term outcome but suggests the need to monitor the occurrence of osteoarthritis over the long term.
Source: The Journal of Foot and Ankle Surgery - Category: Orthopaedics Source Type: research
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