Introduction. High flexion knee arthroplasties have been designed to allow up to 155 degrees flexion and enable high flexion activities such as kneeling and squatting. To date randomised controlled trials have shown no difference in range of movement (ROM) between high flexion and standard designs. Objectives. The aim of this study was to determine if there is a difference in functional outcome and ROM between the standard and high flexion design of the PFC
The PFC
Introduction: The Depuy Pressed Fit Condylar (PFC) total knee arthroplasty (TKA) is well established with reported 10-year survival rates of 93–97%. The PFC was modified, leading to the introduction of the
The Depuy
The DuPuy
This study reports the first 10-year clinical and radiological follow-up data for the
The aims of this study were to assess the clinical outcomes especially range of motion of the knee after total knee arthroplasty with
We report ten-year clinical and radiological
follow-up data for the
This retrospective study evaluates the midterm results of the Rotating Platform PFC
Aim: To report the intermediate clinical and radiological results of a consecutive series of knee arthroplasies using PFC
Aim: PFC
We set out to demonstrate the 10-year survivorship of the PFC
We set out to demonstrate the 10-year survivorship of the PFC
Aims: We present the results of the PFC
Background. Although the wear of conventional polyethylene liner becomes a serious problem in a long term follow up after total knee arthroplasty, there are few reports of measuring the polyethylene wear. Questions/purposes. Is it possible to measure the linear wear rates in the non-cross-linked polyethylene liner used in the Press Fit Condylar (PFC)
This study was conducted to assess the results in two subgroups:a) the effect of the PFC
The objective of this study was to determine the location of polyethylene post position and/or axis of polyethylene (PE) bearing rotation in order to maximize the rotational freedom of the PE bearing in a posterior-stabilized mobile-bearing TKA. Kinematic data obtained in a previous study involving subjects implanted with the PFC
This study compares the PFC total knee arthroplasty (TKA) system in a prospective randomized control trial (RCT) of the mobile-bearing rotating-platform (RP) TKA against the fixed-bearing (FB) TKA. This is the largest RCT with the longest follow-up where cruciate-retaining PFC total knee arthroplasties are compared in a non-bilateral TKA study. A total of 167 patients (190 knees with 23 bilateral cases), were recruited prospectively and randomly assigned, with 91 knees receiving the RP and 99 knees receiving FB. The mean age was 65.5 years (48 to 82), the mean body mass index (BMI) was 29.7 kg/m2 (20 to 52) and 73 patients were female. The Knee Society Score (KSS), Knee Society Functional Score (KSFS), Oxford Knee Score (OKS), Western Ontario and McMaster Universities Arthritis Index (WOMAC), and 12-Item Short-Form Health Survey Physical and Mental Component Scores (SF-12 PCS, SF-12 MCS) were gathered and recorded preoperatively, at five-years’ follow-up, and at ten years’ follow-up. Additionally, Knee Injury and Osteoarthritis Outcome Scores (KOOS) were collected at five- and ten-year follow-ups. The prevalence of radiolucent lines (RL) on radiographs and implant survival were recorded at five- and ten-year follow-ups.Aims
Patients and Methods
Septic knee prosthesis revision is particularly challenging either for the eradication of the infection and for functional recovery of the patient. 18 patients treated from year 2000 to 2003, treated according to the same medical and surgical protocol have been reviewed. In all cases the following steps have been followed:
- removal of the septic prosthesis, debridement and implant of an articulated pre-formed cement spacer; - at 2 months, removal of the spacer and implant of a modular PFC knee revision prosthesis; - when appropriate osteotomy and synthesis of the anterior tibial tuberosity; - double antibiotic therapy, parentheral and oral, for 2 months after the first and after the second stage procedure. At a mean 18 months follow-up, we observed:
- no infection recurrence in all cases (one patient is lost to follow-up); - range of motion: flexion 73° +− 25°, extension – 5° +− 3°; - 1 dislocation of the articulated spacer; - 1 femoral fracture. Two-stage septic knee prosthesis revision, according to a the described protocol, allows to obtain high infection eradication rate and acceptable functional recovery, in the medium term follow-up.
Previous studies comparing cruciate retaining (CR) and cruciate sacrificing - posterior stabilised (PS) TKRs have failed to demonstrate a difference in outcomes based on numbers of patients recruited. This large study compares clinical outcomes in groups having PS and CR TKR and reports the results at 1 and 2 years post-operatively. A total of 683 patients undergoing TKR were consecutively enrolled in a prospective multi-centre study with 2 arms. In the first arm patients receiving a PS component were randomised to receive either a mobile bearing (176 patients) or fixed bearing (176 patients) implant. In the second arm, patients receiving a CR component were randomised to receive either a mobile bearing (161 patients) or fixed bearing (170 patients) implant. All patients were assessed preoperatively and at one and two years postoperatively using standard tools (Oxford, AKSS, Patellar Score) by independent nurse specialists. The data from the 2 arms of the trial were then analysed to compare differences between PS and CR implants.Introduction
Methods