The hip rotation centre (HRC) is an important reference point in cases of total hip arthroplasty (THA). The aim of this study is to investigate the reference points in the Turkish population that enable the identification of the HRC in standard pelvic radiographs. The pelvic radiographs of 50 women and 50 men were examined. The mean age was 46.2 (range; 18-91). Patients with deformity of the hip joint and non-standard pelvic radiograph due to hip flexion contracture were excluded from the study. The pelvic height (PH), the distance between the HRC and teardrop (HRC-Td), and the HRC and the line tangent tuber ischiadicums (HRC-TI) were measured. The ratio of HRC-Td and HRC-TI to PH were calculated. The first is called "the horizontal-HRC ratio" and the second, "the vertical-HRC ratio". Mean PH was 239 (±13.58) mm in males and 225 (±12.52) in females (p < 0.0001). The distances of HRC-TI were 71 (±6.35) and 65 (±6.72) mm (p < 0.0001) and the distance of HRC-Td were 34 (±3.73) and 30 (±4.05) ...
The purpose of this study was to investigate the effect of tmplant diameter and prosthesis retention system on the reliability and failure modes of single crowns.
An introducer for an expandable endovascular prosthesis having a self expanding stent has a distal prosthesis positioning mechanism and a proximal prosthesis retention mechanism. The proximal prosthesis retention mechanism includes a cylindrical sleeve adapted to retain the self expanding stent. A release mechanism extends proximally from the distal prosthesis positioning mechanism and exerts a force in the proximal direction on an interior surface of the self expanding stent to retain the self expanding stent in the cylindrical sleeve.
A universal dental prosthesis retention system adapted to interconnect a dental implant secured in a patients jaw bone to an artificial dental prosthesis. The retention system includes an implant insert having a first longitudinal axis and securable into the dental implant, a prosthesis insert having a second longitudinal axis and securable within the dental prosthesis, and a universal connector adapted to interconnect the implant insert and prosthesis insert. The universal connector is also adapted to facilitate preselected or adjustable universal angular alignment between the first and second axes, that angular relationship then securably lockable to enable the dental prosthesis to be thereafter securely mounted over the prosthesis insert. Various locking structures and universal connector structure are provided.
...development and application of image-guided 3D bioprinting for personalized clinical applications - specifically by bioprinting custom nasal defects.
12 mainly retrospective studies were included in this review of extra-oral implant retention. The quality of the available studies is limited.
The present disclosure is directed towards a biomechanical implant and anterior, lateral or posterior instrumentation construct. The construct may be of unitary or modular construction, whereby a single molded construction can form the entire assembly, in which case the through holes may be adapted to receive a metallic insert for screw fixation; or alternatively be of a modular construction wherein the anterior/lateral instrumentation and intervertebral spacer are designed for removable locking engagement, one with the other, for insertion by the surgeon as a unitary construct. A unique feature of the construct resides within the instrumentation construction, whereby a single opening formed therein permits two bone screws, or the like fastener device, to be positioned within both the superior and inferior vertebral bodies surrounding the spacer implant, or, for example in the case of a corpectomy or diskectomy with cage insertion, wherein two screws can be fixed within a single vertebral body through a
A healthy jawbone is critical for tooth or dental implant retention. Jawbone loss may contribute to tooth loss, impaired implant function and compromised aesthetic outcome.
X-ray extraoral film, also referred to as panoramic and cephalometric film, is used when administering an X-ray from outside a patients mouth. Extraoral radiographs are done for a number of reasons, such as needing to capture a larger, overall image of the mouth and jaws or when a patient cannot tolerate films being placed inside the mouth ...
Disfiguration due to nasal defect causes serious effects on persons work and social life. Nose is a central and prominent feature of the face. This study outlines the role of forehead flap and local flaps in reconstruction of nasal defects over the last two years in the Department of Plastic Surgery of BPS Government Medical College for Women (Khanpur Kalan, Sonipat, India).
Our facial and somato prosthetic unit is making artificial eye, orbital prosthesis, nose prosthesis, ear prosthesis, cranial or hair prosthesis, artificial finger, breast and surrogacy belly.
Panoramic X-ray bite pieces and chin supports are used while taking extraoral X-rays in order to properly position a patients head and to ensure a patients mouth remains open ...
TY - JOUR. T1 - A two-stage retention débridement protocol for acute periprosthetic joint infections. AU - Estes, Chris S.. AU - Beauchamp, Chris P.. AU - Clarke, Henry D.. AU - Spangehl, Mark J.. PY - 2010/8. Y1 - 2010/8. N2 - Background: Due to the historically poor infection control rates with débridement and component retention for acute periprosthetic infections we developed a new approach for treating acute periprosthetic total joint infections: initial débridement with prosthesis retention and placement of antibiotic-impregnated cement beads followed by a second débridement within 7 days, at which time the beads are removed and new modular parts inserted. Intravenous antibiotics were used for 6 weeks followed by oral antibiotics. Depending on the clinical situation, antibiotics are discontinued or in selected patients continued indefinitely. Questions/purposes: We determined the ability of this two-stage débridement to control infection. Methods: We retrospectively reviewed the ...