The Relationship between Soft-Tissue Balance and Intraoperative Kinematics of Guided Motion Total Knee Arthroplasty
In this study, intraoperative kinematics of 95 patients whose TKA was performed with a guided-motion prosthesis (Journey II BCS Smith and Nephew) were measured using the computed tomography (CT)-free navigation system. All procedures were performed via the same soft-tissue balancing technique, which focused on the medial compartment because guided-motion TKA must acquire medial stability to induce medial pivot motion. We measured the extension and flexion osteotomy gaps using a force-controlled compartment-specific ligament tensioner with a distraction force of 80 N for each compartment and divided patients into three groups based on the relationship between extension and flexion joint osteotomy gaps of the medial compartment: group1– loose flexion gap, group 2–equal joint gap, and group 3–tight flexion gap. We compared the preoperative demographic characteristics, implant alignment, and intraoperative kinematics among the three groups. There was no difference between the preoperative demographic characteristics and postoperative implant alignment in the three groups. The relative tibial internal rotational angles in groups 1 and 2 were significantly larger than that in group 3 at 60°, 90°, and maximum flexion (p
To investigate the interobserver variability of combined transrectal ultrasound (TRUS) / computed tomography (CT) vs. CT only vs. MRI only- based contouring of the high risk clinical target volume (CTVHR) in image guided adaptive brachytherapy (IGABT) for locally advanced cervical cancer (LACC).
To evaluate the therapeutic results and toxicity of computed tomography (CT)-guided interstitial high-dose-rate (HDR) brachytherapy in combination with regional positive lymph node intensity-modulated radiotherapy(IMRT) for patients with locally advanced peripheral non-small cell lung cancer (NSCLC).
Compare with Computed tomography (CT), Magnetic resonance imaging (MRI) is superior in anatomical delineation. This feature of MRI facilitates the improvement of radiation dose distribution for both tumor treatment and normal tissues protection in high-dose-rate brachytherapy (HDR-BT) by using MRI compared with CT-Ultrasound guided treatment planning and dosimetric evaluation. However, the application of MRI approach was limited due to the lack of positive contrast MRI line markers that could clearly delineate the lumen of the HDR applicator and therefore precisely show the path of the HDR source.
We present a new technique of three dimensional (3D) computed tomography (CT) guided interstitial (IS) brachytherapy (BT) and evaluate the dosimetric advantage of the current technique compared with the conventional intracavitary brachytherapy for locally advanced cervical cancer, offering a more advantageous clinical treatment approach.
There is increasing evidence in oncology that pain management contributes to broad quality-of-life improvement. To maximize patient outcomes, pain management is an essential part of oncologic management. The aim of this study was to investigate the safety and effectiveness of computed tomography (CT)-guided 125I brachytherapy in treating adult cancer pain.
To evaluate the efficacy and safety of percutaneous computed tomography-guided combined bronchoscope-guided permanent iodine-125 implantation brachytherapy to central lung cancer.
To evaluate intermediate-term outcomes after computed tomography (CT)-guided radioactive iodine-125 seed implantation (CTRISI) and to determine prognostic variables associated with outcomes in patients with pulmonary metastases.
To describe a useful technique to decrease rectal dose during HDR prostate brachytherapy given as boost to EBRT or as monotherapy. Prostate brachytherapy has evolved in recent years together with the technological and computer development. It has become popular to use high dose rate (HDR) and 3D volumetric planning, using computed tomography (CT) and/or magnetic resonance imaging (MRI), which has help improving accuracy and conformation of treatment and also the capabilities to dose scaling, due to the real visualization of the target and organs at risk (OARS), the use of tomographic images allows to take actions and optim...
For cervical brachytherapy planning, magnetic resonance imaging (MRI) is preferable to computed tomography (CT) for target delineation. However, due to logistical and financial restrictions, in-room MRI is not routinely available in brachytherapy centers in the United States. Our institution has created a workflow that integrates MRI based target delineation with an in-room CT scanner. After the initial fraction of CT guided brachytherapy is delivered, an MRI is acquired and fused to subsequent planning CT ’s (fractions 2-5) with the aim of improving target coverage and improving conformality.
We investigated the role of computed tomography (CT)-guided 125I seed implantation in combination with chemotherapy for the treatment of Stage III non-small cell lung carcinoma (NSCLC).