Aims. Loosening of components after
Aims.
Aims. The aim of this study was to compare a bicruciate-retaining (BCR)
Aims. Neither a surgeon’s intraoperative impression nor the parameters of computer navigation have been shown to be predictive of the outcomes following
Aims. This study aimed to evaluate if
Aims. The aim of this study was to compare any differences in the primary outcome (biphasic flexion knee moment during gait) of robotic arm-assisted bi-unicompartmental knee arthroplasty (bi-UKA) with conventional mechanically aligned
Aims. Medial pivot (MP)
Aims. Inadvertent soft tissue damage caused by the oscillating saw during
Aims. Oxidised zirconium was introduced as a material for femoral components
in
Objectives. Throughout the 20th Century, it has been postulated that the knee moves on the basis of a four-bar link mechanism composed of the cruciate ligaments, the femur and the tibia. As a consequence, the femur has been thought to roll back with flexion, and
Fixed flexion deformities are common in osteoarthritic
knees that are indicated for
The outcome of
We have previously reported the short-term radiological
results of a randomised controlled trial comparing kinematically
aligned
Tranexamic acid (TEA), an inhibitor of fibrinolysis,
reduces blood loss after routine
Objectives. Numerous complications following
We report on the long-term results of 163 bicruciate-retaining
Hermes 2C
Objectives. A lack of connection between surgeons and patients in evaluating
the outcome of
Patient-specific cutting guides (PSCGs) are designed
to improve the accuracy of alignment of
There has been a recent increase in interest
for non-cemented fixation in
In this study we present our experience with
four generations of uncemented total knee arthroplasty (TKA) from Smith
&
Nephew: Tricon M, Tricon LS, Tricon II and Profix, focusing
on the failure rates correlating with each design change. Beginning
in 1984, 380 Tricon M, 435 Tricon LS, 305 Tricon 2 and 588 Profix
were implanted by the senior author. The rate of revision for loosening
was 1.1% for the Tricon M, 1.1% for the Tricon LS, 0.5% for the
Tricon 2 with a HA coated tibial component, and 1.3% for the Profix
TKA. No loosening of the femoral component was seen with the Tricon
M, Tricon LS or Tricon 2, with no loosening seen of the tibial component
with the Profix
Aims. Conflicting clinical results are reported for the ATTUNE
Aims. The diagnosis of periprosthetic joint infection (PJI) continues to present a significant clinical challenge. New biomarkers have been proposed to support clinical decision-making; among them, synovial fluid alpha-defensin has gained interest. Current research methodology suggests reference methods are needed to establish solid evidence for use of the test. This prospective study aims to evaluate the diagnostic accuracy of high-performance liquid chromatography coupled with the mass spectrometry (LC-MS) method to detect alpha-defensin in synovial fluid. Methods. Between October 2017 and September 2019, we collected synovial fluid samples from patients scheduled to undergo revision surgery for painful
Aims. The use of high tibial osteotomy (HTO) to delay
Aims. Infection complicating primary total knee arthroplasty (TKA) is a common reason for revision surgery, hospital readmission, patient morbidity, and mortality. Increasing incidence of methicillin-resistant Staphylococcus aureus (MRSA) is a particular concern. The use of vancomycin as prophylactic agent alone or in combination with cephalosporin has not demonstrated lower periprosthetic joint infection (PJI) rates, partly due to timing and dosing of intravenous (IV) vancomycin administration, which have proven important factors in effectiveness. This is a retrospective review of a consecutive series of primary TKAs examining incidence of PJI, adverse reactions, and complications using IV versus intraosseous (IO) vancomycin at 30-day, 90-day, and one-year follow-up. Methods. A retrospective review of 1,060 patients who underwent
Aims. The primary aim of this study was to compare the postoperative systemic inflammatory response in conventional jig-based
Aims. Robotic arm-assisted surgery offers accurate and reproducible guidance in component positioning and assessment of soft-tissue tensioning during knee arthroplasty, but the feasibility and early outcomes when using this technology for revision surgery remain unknown. The objective of this study was to compare the outcomes of robotic arm-assisted revision of unicompartmental knee arthroplasty (UKA) to
The aim of this study was to assess factors associated with the estimated lifetime risk of revision surgery after primary knee arthroplasty (KA). All patients from the Scottish Arthroplasty Project dataset undergoing primary KA during the period 1 January 1998 to 31 December 2019 were included. The cumulative incidence function for revision and death was calculated up to 20 years. Adjusted analyses used cause-specific Cox regression modelling to determine the influence of patient factors. The lifetime risk was calculated as a percentage for patients aged between 45 and 99 years using multiple-decrement life table methodology.Aims
Methods
Aims. Nearly 99,000
Aims. The purpose of this study is to determine an individual’s age-specific prevalence of
Aims. The rate of day-case
Aims. Robotic-assisted
Aims. The aim of this study was to describe the prevalence and patterns of neuropathic pain over one year in a cohort of patients with chronic post-surgical pain at three months following
Aims. It has been suggested that mobile-bearing total knee arthroplasty
(TKA) might lead to better outcomes by accommodating some femorotibial
rotational mismatch, thereby reducing contact stresses and polyethylene
wear. The aim of this study was to determine whether there is a
difference between fixed- and mobile-bearing versions of a contemporary
TKA with respect to durability, range of movement (ROM) and function,
ten years postoperatively. Patients and Methods. A total of 240 patients who were enrolled in this randomized
controlled trial (RCT) underwent a primary cemented
Aims. The mid-term results of kinematic alignment (KA) for
Aims.
Aims. Blood transfusion and postoperative anaemia are complications of
Aims. No predictive model has been published to forecast operating time for
Aims. This study aims to determine the rate of and risk factors for
Aims. To assess the cost-effectiveness of a two-layer compression bandage versus a standard wool and crepe bandage following
Aims. In-hospital length of stay (LOS) and discharge dispositions following arthroplasty could act as surrogate measures for improvement in patient pathways, and have major cost saving implications for healthcare providers. With the ever-growing adoption of robotic technology in arthroplasty, it is imperative to evaluate its impact on LOS. The objectives of this study were to compare LOS and discharge dispositions following robotic arm-assisted
Aims. The aim of this study was to identify risk factors for prosthetic
joint infection (PJI) following
Aims. The aims of this study were to investigate the ability to kneel after
Aims. Mid-level constraint designs for
Aims. Despite new technologies for
Aims. The aim of this study was to compare ten-year longitudinal healthcare costs and revision rates for patients undergoing unicompartmental knee arthroplasty (UKA) and
Aims. Access to
Aims. The success of
Aims. This prospective study reports longitudinal, within-patient, patient-reported outcome measures (PROMs) over a 15-year period following cemented single radius
Aims. The primary aim was to assess whether robotic
Aims. We aimed to assess the reliability and validity of OpenPose, a posture estimation algorithm, for measurement of knee range of motion after
Aims. The aim was to assess whether robotic-assisted
Limb alignment in
Patient specific instrumentation (PSI) uses advanced
imaging of the knee (CT or MRI) to generate individualised cutting
blocks aimed to make the procedure of
Aims. Intraoperative pressure sensors allow surgeons to quantify soft-tissue balance during
Aims. Social determinants of health (SDOHs) may contribute to the total cost of care (TCOC) for patients undergoing
Aims. The aim of this study was to investigate the distribution of phenotypes in Asian patients with end-stage osteoarthritis (OA) and assess whether the phenotype affected the clinical outcome and survival of mechanically aligned
Aims. Many surgeons choose to perform
Aims. Patients with a deformity of the hindfoot present a particular challenge when performing
Aims. The aim of this study was to compare the migration of the femoral component, five years postoperatively, between patients with a highly cross-linked polyethylene (HXLPE) insert and those with a conventional polyethylene (PE) insert in an uncemented Triathlon fixed insert cruciate-retaining
Aims. The primary aim of this study was to compare the migration of the femoral and tibial components of the cementless rotating platform Attune and Low Contact Stress (LCS)
Aims. The primary aim of this study was to assess whether non-fatal postoperative venous thromboembolism (VTE) within six months of surgery influences the knee-specific functional outcome (Oxford Knee Score (OKS)) one year after
Aims. Wear of the polyethylene (PE) tibial insert of
Aims. It is unknown whether gap laxities measured in robotic arm-assisted
The primary objective of this study was to compare migration of the cemented ATTUNE fixed bearing cruciate retaining tibial component with the cemented Press-Fit Condylar (PFC)-sigma fixed bearing cruciate retaining tibial component. The secondary objectives included comparing clinical and radiological outcomes and Patient Reported Outcome Measures (PROMs). A single blinded randomized, non-inferiority study was conducted including 74 patients. Radiostereometry examinations were made after weight bearing, but before hospital discharge, and at three, six, 12, and 24 months postoperatively. PROMS were collected preoperatively and at three, six, 12, and 24 months postoperatively. Radiographs for measuring radiolucencies were collected at two weeks and two years postoperatively.Aims
Methods
Aims. Recent
Metaphyseal fixation during revision total knee arthroplasty (TKA) is important, but potentially difficult when using historical designs of cone. Material and manufacturing innovations have improved the size and shape of the cones which are available, and simplified the required bone preparation. In a large series, we assessed the implant survivorship, radiological results, and clinical outcomes of new porous 3D-printed titanium metaphyseal cones featuring a reamer-based system. We reviewed 142 revision TKAs in 139 patients using 202 cones (134 tibial, 68 femoral) which were undertaken between 2015 and 2016. A total of 60 involved tibial and femoral cones. Most cones (149 of 202; 74%) were used for Type 2B or 3 bone loss. The mean age of the patients was 66 years (44 to 88), and 76 (55 %) were female. The mean body mass index (BMI) was 34 kg/m2 (18 to 60). The patients had a mean of 2.4 (1 to 8) previous operations on the knee, and 68 (48%) had a history of prosthetic infection. The mean follow-up was 2.4 years (2 to 3.6).Aims
Methods
Aims. A novel enhanced cement fixation (EF) tibial implant with deeper cement pockets and a more roughened bonding surface was released to market for an existing
Aims.
The kinematic alignment (KA) approach to
Aims. Periprosthetic joint infection (PJI) is a devastating complication following
Aims. Although
Aims. The Coronal Plane Alignment of the Knee (CPAK) classification has been developed to predict individual variations in inherent knee alignment. The impact of preoperative and postoperative CPAK classification phenotype on the postoperative clinical outcomes of
Aims. The tibial component of
Aims. The objective of this study was to compare the two-year migration pattern and clinical outcomes of a
Aims. This study aimed to investigate the relationship between changes in patellar height and clinical outcomes at a mean follow-up of 7.7 years (5 to 10) after fixed-bearing posterior-stabilized total knee arthroplasty (PS-TKA). Methods. We retrospectively evaluated knee radiographs of 165 knees, which underwent fixed-bearing PS-TKA with patella resurfacing. The incidence of patella baja and changes in patellar height over a minimum of five years of follow-up were determined using Insall-Salvati ratio (ISR) measurement. We examined whether patella baja (ISR < 0.8) at final follow-up affected clinical outcomes, knee joint range of motion (ROM), and Knee Society Score (KSS). We also assessed inter- and intrarater reliability of ISR measurements and focused on the relationship between patellar height reduction beyond measurement error and clinical outcomes. Results. The ISR gradually decreased over five years after
Aims. It has been hypothesized that a unicompartmental knee arthroplasty (UKA) is more likely to be revised than a
Aims. To identify the responsiveness, minimal clinically important difference (MCID), minimal clinical important change (MIC), and patient-acceptable symptom state (PASS) thresholds in the 36-item Short Form Health Survey questionnaire (SF-36) (v2) for each of the eight dimensions and the total score following
Aims. The aim of this study was to compare the clinical outcomes of robotic arm-assisted bi-unicompartmental knee arthroplasty (bi-UKA) with conventional mechanically aligned
Aims. While mechanical alignment (MA) is the traditional technique in
We wished to determine whether simultaneous bilateral sequential
Aims. The removal of the cruciate ligaments in
Aims. The outcome of repeat septic revision after a failed one-stage exchange for periprosthetic joint infection (PJI) in
Aims. Modern
Aims. The management of periprosthetic joint infection (PJI) after
Aims. Single-shot adductor canal block (ACB) after
Aims. Alternative alignment concepts, including kinematic and restricted kinematic, have been introduced to help improve clinical outcomes following
Aims. Robotic-assisted
Aims. The integrity of the soft tissue envelope is crucial for successful treatment of infected
Aims. This study aims to investigate the effects of posterior tibial slope (PTS) on knee kinematics involved in the post-cam mechanism in bi-cruciate stabilized (BCS)
Aims. The aims of this study were: 1) to describe extended restricted kinematic alignment (E-rKA), a novel alignment strategy during robotic-assisted
Aims. Unicompartmental knee arthroplasty (UKA) provides improved early functional outcomes and less postoperative morbidity and pain compared with
Aims. Vitamin E-infused highly cross-linked polyethylene (E1) has recently been introduced in
Aims. Arthrodesis is rarely used as a salvage procedure for patients with a chronically infected
Aims. Between 15% and 20% of patients remain dissatisfied following
Aims. One of the main causes of tibial revision surgery for
Aims. The optimal management of an infrapopliteal deep venous thrombosis (IDVT) following
Aims. It remains difficult to diagnose early postoperative periprosthetic joint infection (PJI) following
Aims. Although bone cement is the primary mode of fixation in
Aims. The primary aim of this study was to compare the knee-specific functional outcome of patellofemoral arthroplasty with