Medium-Term Assessment of Total Knee Arthroplasty With Implant Made in Brazil

Abstract

Objective: This study assessed 47 patients who underwent total knee arthroplasty (TKA) with implants manufactured in Brazil, with a mean follow-up of five years. Methods: This was a retrospective study at Santa Casa de Misericordia Hospital in Rio de Janeiro, from January 1993 to December 2002. The sample comprised 47 patients (44 females and three males) who underwent TKA, totaling 58 knees. The patients’ ages ranged from 46 to 83 years. A diagnosis of osteoarthritis or rheumatic disease was confirmed in all the patients. Results: In this investigation, all the patients underwent cemented TKA with preservation of the posterior cruciate ligament. The length of follow-up ranged from 5 to 17 years. The functional assessment criterion used was the one of the Hospital for Special Surgery (HSS), and this yielded an average of 87 points after the operation. The radiographic criterion used was the Knee Society Total Knee Arthroplasty Roentgenographic Evaluation and Scoring System. We had three cases with a radiolucent line without implant loosening, which were asymptomatic from a clinical standpoint. Conclusion: The total knee arthroplasty procedures using an implant made in Brazil were performed by a trained and experienced team. To date, over the clinical follow-up on these patients with knee osteoarthritis or rheumatoid arthritis, the results have been seen to be satisfactory.

The Results of a Comparison of a Brazilian and an Imported Knee Prosthesis - 5 Years of Follow-Up

“…In a literature review, Labek et al 13 found a 12% rate of revisions in 10 years in the largest international series. We found good results regarding aseptic loosening in two case series with Brazilian implants with a mean follow-up of 5 years [5][6] and in another national case series that used the imported implant 10 with similar follow-up. Barreto et al 5 presents in his series 58 knees and no revision due to aseptic loosening.…”

“…We found good results regarding aseptic loosening in two case series with Brazilian implants with a mean follow-up of 5 years [5][6] and in another national case series that used the imported implant 10 with similar follow-up. Barreto et al 5 presents in his series 58 knees and no revision due to aseptic loosening. He reports only 3 cases of asymptomatic patients with radiolucents on radiographs.…”

“…Some Brazilian implants have shown good durability in biomechanical tests 4 , but we do not have large clinical studies with a long follow-up period proving the same durability and results. Some national case series have already demonstrated good results and low revision rate with some Brazilian implants in a medium-term follow-up [5][6] . The choice of implant impacts health care costs and generates a lot of conflicts between surgeons and health managers [7][8] .…”

Total knee arthroplasty in patients with permanent patella dislocation. Report of two cases and literature review

“…Total knee arthroplasty (TKA) is a highly complex surgical procedure, primarily indicated in patients with a diagnosis of knee osteoarthritis or rheumatologic diseases. 1 It is a surgical procedure that has been constantly evolving since its inception. More modern implant models, which resemble as close as possible the anatomy of the knee, associated with increasingly precise and less traumatic instruments, have made surgical indications more and more widespread.…”

“…More modern implant models, which resemble as close as possible the anatomy of the knee, associated with increasingly precise and less traumatic instruments, have made surgical indications more and more widespread. 1 …”