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BackgroundAccurate localization of bone surfaces remains a challenge hampering adoption of ultrasound guidance in computer‐assisted orthopaedic surgery. Local phase image features have recently been proven efficacious for segmenting bone surfaces from ultrasound images, but the quality of the processing depends on numerous filter parameters that are currently set through a trial and error process...
Background
Open posterior spinal procedures involve extensive soft tissue disruption, increased hospital length of stay, and disfiguring scars. Our aim was to demonstrate the feasibility of using robotic‐assistance for minimally invasive exposure of the posterolateral spine with and without carbon dioxide (CO2 ) insufflation.
Methods
Sheep specimens underwent minimally invasive subperiosteal dissection...
Background
Orthopaedic training programs are incorporating arthroscopic simulations into their residency curricula. There is a need for a physical shoulder simulator that accommodates lateral decubitus and beach chair positions, has realistic anatomy, allows for an objective measure of performance and provides feedback to trainees.
Methods
A physical shoulder simulator was developed for training...
Background
The implantation of the acetabular cup essentially determines the clinical outcome of total hip arthroplasty. To address this issue, the aim of this study was to build patient‐specific instruments (PSIs) with various reference surfaces, followed by in vitro investigations to examine the inter‐ and intra‐operator reliability as well as the overall precision of these patient‐specific templates...
Background
Medical robotics has progressively become more compelling in modern orthopaedic surgery. Several studies comparing robot‐assisted (RA) and freehand (FH) conventional techniques for pedicle screw fixation have been published, but the results are unclear. Here, we assessed current evidence regarding the efficiency, safety and accuracy of RA compared with FH techniques.
Methods
A literature...
Background
Intraoperative cone‐beam computed tomography (CBCT) offers the advantage of navigation on the current anatomical situation and the possibility to take a control scan. We assessed the feasibility of using intraoperative CBCT for navigated intralesional curettage.
Methods
Nine benign bone tumour patients were studied. Feasibility was assessed by describing the workflow and indications...
Background
Optical tracking systems (OTSs) are essential components of many modern computer assisted orthopaedic surgery (CAOS) systems but patient movement is often neglected in the evaluation of the accuracy. The aim of this study was to develop a representative test to assess the accuracy of OTSs including patient movement and demonstrate the effect of pointer design and OTS choice.
Method
A...
Background
The purpose of this study was to compare total blood loss and the risk of receiving a blood transfusion in robotic‐assisted total knee arthroplasty (TKA) and unicompartmental knee arthroplasty (UKA) against conventional jig‐based techniques.
Methods
Robotic TKA (n = 50) and UKA (n = 50) patients were matched to contemporary controls for TKA (n = 50) and UKA (n = 50) and retrospectively...
Background
The development of total knee arthroplasty (TKA) for knee osteoarthritis (OA) has a good reputation for its effectiveness in reducing joint pain and improving range of motion. We aimed to review our early results using the image‐free robotic‐assisted technology in knee arthroplasty.
Methods
A total of 71 patients suffering from end‐stage OA knee receiving TKA operated by robotic‐assisted...
Background
Our objective was to compare the coronal mechanical axis after total knee replacement (TKR) obtained in three groups of patients subjected to conventional, navigated, and robotic surgery.
Methods
Retrospective analysis.
Results
124 knees were included (36 conventional, 41 navigated, 47 robotic). No statistically significant differences were found between the postOp tibiofemoral angle...
Background
This systematic review aims to ascertain how accurately 3D models can be predicted from two‐dimensional (2D) imaging utilising statistical shape modelling.
Methods
A systematic search of published literature was conducted in September 2022. All papers which assessed the accuracy of 3D models predicted from 2D imaging utilising statistical shape models and which validated the models against...
Background
This study investigated the accuracy in achieving proper lower limb alignment and component positions after total knee replacement (TKR) with image‐free and image‐based robotic‐assisted TKR.
Methods
A total of 129 patients (166 knees) suffering from end‐stage knee arthritis who underwent TKA operated by robotic‐assisted surgery between the years 2018 and mid‐2021 were recruited. Radiological...
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