SIGMA® Primary Knee System Balanced Surgical Technique DePuy Synthes Joint Reconstruction 2 DePuy Synthes Joint Reconstruction SIGMA® Primary Knee System Balanced Surgical Technique PFC Chamfer Guides Size Product, DePuy P.F.C. Sigma Knee System, Non-Porous Cruciate Retaining Femoral Component, 73 mm M/L 69 mm A/P, 5 left, sterile, DePuy Orthopaedics, . Functional outcome of PFC Sigma fixed and rotating-platform total knee . system (PFC Sigma or PFC Sigma RP, DePuy, Warsaw, Indiana).

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A prospective comparison of mid-term outcomes using a similar design of prosthesis. If you would like to report a potential cybersecurity vulnerability in any of our products, please refer to our Responsible Disclosure Reporting website.

P.F.C.® SIGMA&reg TC3 Knee System | DePuy Synthes Companies

Data were analysed on an intention-to-treat analysis. The prostheses were found to be well fixed and without evidence of loosening in both cases. Revision Tray Surgical Technique. The posterior cruciate ligament PCL was retained in all cases. SIGMA is designed to address implant longevity by maximizing femoro-tibial contact area, minimizing peak contact stresses while employing state-of-the-art polyethylene sterilization and packaging. Patient-reported outcomes after fixed- versus mobile-bearing total knee replacement: Comparison of the PFC Sigma fixed-bearing and rotating-platform total knee arthroplasty in the same patient: Acknowledgments Conflict of interest This study has been sponsored by DePuy International who have provided resources to cover the additional costs of conducting the research over and above standard clinical practice as well as statistical support.

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All inquiries can be submitted by email to: There was however no difference in ROM at four years between the groups. One patient sustained a patella fracture after a fall within the first year after sigms and in two cases tibial augmentation was necessary, which constituted a protocol violation.


Depuy | PFC Sigma Knee System | Which Medical Device

The studies also differ in methodology, patient selection, operative technique and outcome measures. Comparison of mobile-bearing and fixed-bearing total knee arthroplasty: Registration is free and gives you unlimited access to all of the content and features of this website. They allow a more natural tibial rotation during flexion than fixed-bearing implants. Twelve pff were lost to follow-up—six patients did not attend the follow-up clinics, four patients died within the first year after surgery of causes unrelated to the operative procedure and two patients withdrew consent.

At sigmma mean follow-up of The operation was carried out through a midline incision using a medial parapatellar approach.

Journal List Int Orthop v. All prostheses were cemented. Total Knee Arthroplasty TKA and Unicompartmental Knee Replacement are intended to provide increased patient mobility and reduce pain by replacing the damaged knee joint articulation in patients where there is evidence of sufficient sound bone to seat and support the components.

Difficulties with bearing dislocation and breakage using a movable bearing total knee replacement system. For the subsequent patients a further randomisation schedule, blocked and stratified for treatment only, was produced by a biostatistician at DePuy Pgc Ltd. J Bone Joint Surg Br. The functional outcome was evaluated by an independent physiotherapist or specialist nurse practitioner who was not blinded to the knee implanted, using range of motion, Oxford knee score range 12—60 [ 18 ] and Knee Society KSS knee and function subscores range 0— [ 19 ].

Open in a separate window. In two of these studies [ 15xepuy ] the patella was routinely resurfaced; in the third study the resurfacing status of deuy patella was not reported. Questionnaire on the perceptions of patients about total knee replacement.

Please direct all other requests to one of the other DePuy Synthes Companies or career inquiries email addresses located on this pcf. Three patients had to be excluded from analysis. Click here to visit http: We ask that our members register with us so that we can maintain the unbiased and independent nature of our content.


None of these studies showed a statistically significant difference between the mobile and fixed bearing, but the use of different types and designs of implants may have affected the clinical outcome as has previously been acknowledged by Biau et al.

Cochrane Database Syst Rev 2: However, in our trial the PCL was retained in all cases, all implants were cemented and the patella was not resurfaced. The patella was not resurfaced. COVERNOX Antioxidant stabilizes free radicals and prevents oxidation 4 Addition of an antioxidant eliminates the need for a heat treatment, thus maintains excellent mechanical properties 4 Moderate sugma of cross-linking for wear performance similar to XLK.

SIGMA® Total Knee System | DePuy Synthes Companies

No statistically significant difference in any of the outcome scores was found edpuy the groups at a mean follow-up of 5. Two-year follow-up on joint stability and muscular function comparing rotating versus fixed bearing TKR.

Mobile versus fixed-bearing total knee arthroplasty: If you would like to report a potential cybersecurity vulnerability in any of our products, please refer to our Responsible Disclosure Reporting website. This study was approved by the local research ethics committee. The rotating platform, as used in the PFC Sigma RP deput replacement system, has unidirectional motion which has been shown to have less volumetric wear than other mobile designs [ 12 ].

There were no intraoperative complications. All femoral and tibial components were cemented. No analysis for improvement in scores was reported.

Results may therefore not be transferable to a western European population. Highly polished cobalt chrome tibial tray provides smooth surface to minimize polyethylene wear 1 i2 locking mechanism with an interference fit for decreased micromotion 2 Features XLK fepuy, a moderately cross-linked, oxidatively stable material.