Aims. This study aimed to evaluate sagittal spinopelvic
The restoration of knee
The cause of dissatisfaction following total
knee arthroplasty (TKA) remains elusive. Much attention has been
focused on static mechanical
Many aspects of total knee arthroplasty have
changed since its inception. Modern prosthetic design, better fixation techniques,
improved polyethylene wear characteristics and rehabilitation, have
all contributed to a large change in revision rates. Arthroplasty
patients now expect longevity of their prostheses and demand functional
improvement to match. This has led to a re-examination of the long-held
belief that mechanical
Aims. This study aimed to evaluate if total knee arthroplasty (TKA) femoral components aligned in either mechanical
Aims. While mechanical
Purpose. Various
Orthopaedic surgeons are currently faced with an overwhelming number of choices surrounding total knee arthroplasty (TKA), not only with the latest technologies and prostheses, but also fundamental decisions on
Aims. Patient-specific instrumentation of total knee arthroplasty (TKA) is a technique permitting the targeting of individual kinematic
Aims. Accurate identification of the ankle joint centre is critical for estimating tibial coronal
Aims. The mid-term results of kinematic
The kinematic
Aims. The Coronal Plane
Dissatisfaction following total knee arthroplasty is a well-documented phenomenon. Although many factors have been implicated, including modifiable and nonmodifiable patient factors, emphasis over the past decade has been on implant
Malalignment is often postulated as the main reason for the high failure rate of total ankle replacements (TARs). Only a few studies have been performed to correlate radiographic TAR malalignment to the clinical outcome, but no consistent trends between TAR
Aims. Alternative
This study aimed to examine the effect of high tibial osteotomy (HTO) on the ankle and subtalar joints via analysis of static radiographic
Aims. A comprehensive classification for coronal lower limb
Cranio-cervical connection is a well-established biomechanical concept. However, literature of this connection and its impact on cervical
Aims. The impact of a diaphyseal femoral deformity on knee
Aims. The aims of this study were: 1) to describe extended restricted kinematic
Aims. The aim of this study was to determine the association between knee
Background. A principle of Total Knee Arthroplasty (TKA) is to achieve a neutral standing coronal
A principle of Total Knee Arthroplasty (TKA) is to achieve a neutral standing coronal
Varus ankle osteoarthritis (OA) is typically associated with peritalar instability, which may result in altered subtalar joint position. This study aimed to determine the extent to which total ankle replacement (TAR) in varus ankle OA can restore the subtalar position
INTRODUCTION. While standard instrumentation tries to reproduce mechanical axes based on mechanical
Introduction. Component and limb
The emergence of patient specific instrumentation has seen an expansion from simple radiographs to plan total knee arthroplasty (TKA) with modern systems using computed tomography (CT) or magnetic resonance imaging scans. Concerns have emerged regarding accuracy of these non-weight bearing modalities to assess true mechanical axis. The aim of our study was to compare coronal
A medializing calcaneal osteotomy (MCO) is one of the key inframalleolar osteotomies to correct progressive collapsing foot deformity (PCFD). While many studies were able to determine the hind- and midfoot
Aims. Total knee arthroplasty (TKA) using functional
Known risk factors for early periprosthetic femur fracture (PFF) following total hip arthroplasty (THA) include poor bone quality, surgical approach and cementless implants. The association between femoral component size and
Mechanical
Abstract. Introduction. Controversy exists regarding the optimal tibial coronal
The spinopelvic
Aims. Once knee arthritis and deformity have occurred, it is currently not known how to determine a patient’s constitutional (pre-arthritic) limb
Aims. Patients with a deformity of the hindfoot present a particular challenge when performing total knee arthroplasty (TKA). The literature contains little information about the relationship between TKA and hindfoot
Introduction. Varus
Aims. The aim of this study is to test the hypothesis that three grades of sagittal compensation for standing posture (normal, compensated, and decompensated) correlate with health-related quality of life measurements (HRQOL). Methods. A total of 50 healthy volunteers (normal), 100 patients with single-level lumbar degenerative spondylolisthesis (LDS), and 70 patients with adult to elderly spinal deformity (deformity) were enrolled. Following collection of demographic data and HRQOL measured by the Scoliosis Research Society-22r (SRS-22r), radiological measurement by the biplanar slot-scanning full body stereoradiography (EOS) system was performed simultaneously with force-plate measurements to obtain whole body sagittal
Accurate evaluation of lower limb coronal
Dislocation is one of the most common complications in total hip arthroplasty (THA) and is primarily driven by bony or prosthetic impingement. The aim of this study was two-fold. First, to develop a simulation that incorporates the functional position of the femur and pelvis and instantaneously determines range of motion (ROM) limits. Second, to assess the number of patients for whom their functional bony
In total knee replacement (TKR), neutral mechanical
Inverse Kinematic
We undertook a prospective, randomised study of 135 total knee arthroplasties to determine the most accurate and reliable technique for
Aims. The extensive variation in axial rotation of tibial components can lead to coronal plane malalignment. We analyzed the change in coronal
INTRODUCTION. In total knee arthroplasty (TKA), the effectiveness of the mechanical
Aims. Anterior cruciate ligament (ACL) rupture commonly leads to post-traumatic osteoarthritis, regardless of surgical reconstruction. This study uses standing MRI to investigate changes in contact area, contact centroid location, and tibiofemoral
Identifying and restoring
Introduction. Proper rotational
Introduction. Malalignment of total knee arthroplasty components may affect implant function and lead to decreased survival, regardless of preferred
Introduction. Robotics have been applied to total knee arthroplasty (TKA) to improve surgical precision in component placement and joint function restoration. The purpose of this study was to evaluate prosthetic component