• implant
  • Examples would be surgical implant and suture granulomas. (frontiersin.org)
  • 5. The prosthetic device of claim 2 selected from the group consisting of bone implant, heart valve and blood vessel. (google.com)
  • This is necessary because the human hip is acted on by approximately 10-12 times the body weight and therefore the bone cement must absorb the forces acting on the hips to ensure that the artificial implant remains in place over the long term. (wikipedia.org)
  • Hip replacement is a surgical procedure in which the hip joint is replaced by a prosthetic implant, that is, a hip prosthesis. (wikipedia.org)
  • Early implant designs had the potential to loosen from their attachment to the bones, typically becoming painful ten to twelve years after placement. (wikipedia.org)
  • In addition, erosion of the bone around the implant was seen on x-rays. (wikipedia.org)
  • Initially, surgeons believed this was caused by an abnormal reaction to the cement holding the implant in place. (wikipedia.org)
  • Alternative techniques exist that affix the implant without cement. (wikipedia.org)
  • Numerous peer-reviewed articles and recent systematic reviews have revealed that platform switching can be considered a means of preventing initial peri-implant bone loss. (wikipedia.org)
  • Several early clinical reports demonstrated enhanced soft (gingiva) and hard (bone) tissue responses to these platform switched implants, leading many implant companies to incorporate platform switching into their implant systems even for narrower-body implants. (wikipedia.org)
  • It has been observed that some degree of bone resorption occurs at the crest of bone following implant placement. (wikipedia.org)
  • Through extensive investigation, it has been discovered that the extent of bone resorption is related to both the texture of the surfaces of the implant and abutment at and the morphology of the implant-abutment junction (IAJ). (wikipedia.org)
  • Although not yet fully understood, the current theory of the benefit of platform switching is related to the physical repositioning of the IAJ away from the outer edge of the implant and the surrounding bone, thereby containing the inflammatory infiltrate within the width of the platform switch. (wikipedia.org)
  • Difference in bone levels became statistically significant when the implant-abutment diameter mismatch was greater than 0.8 mm, providing a 0.4 mm circumferential width of platform switch when the center of the abutment is aligned with and fixed to the center of the implant. (wikipedia.org)
  • Around implants, biologic width formation has classically led to about 1.5 - 2 mm of bone loss in the vertical dimension at the coronal aspect of the implants because the abutment that attaches to the implant was often removed many times to allow for impression taking, abutment changing and other related clinical functions. (wikipedia.org)
  • This vertical loss of bone (X in the diagram at right) diminishes the bone-to-implant contact, contributing to a potential decrease in long-term biomechanical stability and has been well researched. (wikipedia.org)
  • Recently, the lateral extent of this vertical bone loss around implants has been investigated-in other words, the thickness of bone loss that exists as a halo around the implant at its most coronal aspect-and has been termed the horizontal component of the biologic width (Y in the diagram at right), and research reveals that it is approximately 1.4 mm. (wikipedia.org)
  • His work inspired surgical techniques, implant design, development of new operations, prevention of blood clot formation, and other leading advances in hip surgery. (wikipedia.org)
  • A dental implant (also known as an endosseous implant or fixture) is a surgical component that interfaces with the bone of the jaw or skull to support a dental prosthesis such as a crown, bridge, denture, facial prosthesis or to act as an orthodontic anchor. (wikipedia.org)
  • The integration of implant and bone can support physical loads for decades without failure. (wikipedia.org)
  • Microbial leakage and colonization between the implant and the abutments can result in inflammatory reactions and crestal bone loss. (wikipedia.org)
  • dentures
  • When this process has been deemed to have occurred to a sufficient extent, the implants are fitted with restorative abutments in order to allow dental restorations (e.g. crowns, dentures, etc.) to be cemented on, screwed down or otherwise attached. (wikipedia.org)
  • Most crowns and fixed partial dentures have a cemented or screw-retained fixation on the abutment. (wikipedia.org)
  • monomer
  • Note 1: In situ self-curing can be the source of released reagents that can cause local and/or systemic toxicity as in the case of the monomer released from methacrylics-based bone cement used in orthopedic surgery. (wikipedia.org)
  • For a long time it was believed that the incompletely converted monomer released from bone cement was the cause of circulation reactions and embolism. (wikipedia.org)
  • tissue
  • A type of tissue that covers the surface of a bone at a joint. (nyhq.org)
  • Ligaments are elastic bands of tissue that connect bone to bone. (nyhq.org)
  • The resorbed bone is replaced by a markedly vascularized fibrous tissue. (wikipedia.org)
  • In 1983 Heffez and colleagues published a case report in which they suggested eight criteria for a definitive diagnosis of Gorham's disease: Positive biopsy with the presence of angiomatous tissue Absence of cellular atypia Minimal or no osteoblastic response or dystrophic calcifications Evidence of local bone progressive osseous resorption Non-expansile, non-ulcerative lesions No involvement of viscera Osteolytic radiographic pattern Negative hereditary, metabolic, neoplastic, immunologic, or infectious etiology. (wikipedia.org)
  • Despite an approximately 80% success rate with this surgical technique, there is a 25% to 50% relapse, primarily due to excessive scar tissue formation at the decompression site. (wikipedia.org)
  • Much of Harris' research focuses on osteolysis, the deterioration of bone tissue around joint replacement implants, and developing highly cross-linked polyethylene to counter the issue of osteolysis. (wikipedia.org)
  • knee
  • HealthDay)-Injecting a calcium-based cement into the bones of some people with knee or hip pain could help them avoid joint replacement surgery, Ohio State University doctors say. (medicalxpress.com)
  • Please see hip replacement and knee replacement surgical procedures for more specific information. (nyhq.org)
  • Metal and plastic parts are used to cap the ends of the bones that form the knee joint, along with the kneecap. (nyhq.org)
  • Basically, the knee is two long leg bones held together by muscles, ligaments, and tendons. (nyhq.org)
  • Some ligaments of the knee provide stability and protection of the joints, while other ligaments limit forward and backward movement of the tibia (shin bone). (nyhq.org)
  • Bone cements have been used very successfully to anchor artificial joints (hip joints, knee joints, shoulder and elbow joints) for more than half a century. (wikipedia.org)
  • Hip and knee registers for artificial joint replacements such as those in Sweden and Norway clearly demonstrate the advantages of cemented-in anchorage. (wikipedia.org)
  • implants
  • In dentistry, platform switching is a method used to preserve alveolar bone levels around dental implants. (wikipedia.org)
  • The Total System, introduced in 1983, was designed by Harris and was the first integrated system offering an entire range of cemented and cementless implants. (wikipedia.org)
  • The position of implants is determined by the position and angle of adjacent teeth, by lab simulations or by using computed tomography with CAD/CAM simulations and surgical guides called stents. (wikipedia.org)
  • The prerequisites for long-term success of osseointegrated dental implants are healthy bone and gingiva. (wikipedia.org)
  • Facial prosthetics, used to correct facial deformities (e.g. from cancer treatment or injuries) can utilise connections to implants placed in the facial bones. (wikipedia.org)
  • viscosity
  • The bone cement viscosity changes over time from a runny liquid into a dough like state that can be safely applied and then finally hardens into solid hardened material. (wikipedia.org)
  • While the individual components are not always perfectly safe as pharmaceutical additives and active substances per se, as bone cement the individual substances are either converted or fully enclosed in the cement matrix during the polymerization phase from the increase in viscosity to curing. (wikipedia.org)
  • cavity
  • Kyphoplasty uses orthopaedic balloons that are inserted into the fracture, inflated to create a hole or cavity, and removed before the bone cement is injected. (spineuniverse.com)
  • Embolisms can always occur during anchorage of artificial joints when material is inserted into the previously cleared thigh bone cavity. (wikipedia.org)
  • Pulsatile tinnitus is yet another of the typical symptoms of SCDS and is caused by the gap in the dehiscent bone allowing the normal pulse-related pressure changes within the cranial cavity to enter the inner ear abnormally. (wikipedia.org)
  • These may indicate that the disease has spread from the bone into the chest cavity. (wikipedia.org)
  • absorb
  • MTA is a cement containing mineral oxides which absorb water to form a colloidal gel, which solidifies over a period of approximately 4 hours. (wikipedia.org)
  • clinical
  • Comprehensive clinical tests of the compatibility of bone cements with the body were conducted before their use in surgery. (wikipedia.org)
  • In 2009 the U.S. attorney in Philadelphia accused the company of illegally promoting a bone void filler for unapproved uses, running unauthorized clinical trials, and failing to properly report deaths and adverse events related to the product. (wikipedia.org)
  • A clinical sign of this phenomenon is the ability of the patient to hear (not feel) a tuning fork placed upon the ankle bone. (wikipedia.org)
  • Young dogs with clinical signs should be considered for surgical removal to minimize the progression of the disease as the dog ages. (wikipedia.org)
  • implantation
  • The occurrence of undesirable exothermic reactions was avoided through using AMP as the solid precursor What is referred to as bone cement implantation syndrome (BCIS) is described in the literature. (wikipedia.org)
  • tendons
  • In advanced stages of CMC OA, misalignment of the joint bones causes the tendons attached to thumb to force the base of the thumb into radial deviation and extension and the thumb phalanges in hyperextension. (wikipedia.org)
  • ligaments
  • A fluid-filled sac located between bones, ligaments, or other adjacent structures that helps cushion joints. (nyhq.org)
  • resorption
  • Gorham's disease (pronounced GOR-amz), also known as Gorham vanishing bone disease and phantom bone disease, is a very rare skeletal condition of unknown cause, characterized by the uncontrolled proliferation of distended, thin-walled vascular or lymphatic channels within bone, which leads to resorption and replacement of bone with angiomas and/or fibrosis. (wikipedia.org)
  • In 1999 Möller and colleagues concluded, "The Gorham-Stout syndrome may be, essentially, a monocentric bone disease with a focally increased bone resorption due to an increased number of paracrine - or autocrine - stimulated hyperactive osteoclasts. (wikipedia.org)
  • composition
  • b) an analgesic effective amount up to about 5% by weight of a local anaesthetic agent, wherein at least a portion of the anaesthetic agent is released from said bone cement composition when the bone cement composition is in a subject and the strength of the bone cement is substantially unchanged. (google.ca)
  • 2. The anaesthetic bone cement composition of claim 1 , wherein said local anaesthetic agent is selected from the group consisting of lidocaine, bupivacaine, prilocaine, and tetracaine. (google.ca)
  • 3. The anaesthetic bone cement composition of claim 1 , further comprising a radiopacifier. (google.ca)
  • 4. The anaesthetic bone cement composition of claim 1 , wherein said local anaesthetic agent is a liquid. (google.ca)
  • 6. The anaesthetic bone cement composition of claim 1 , wherein said local anaesthetic is an acid. (google.ca)
  • 8. The anaesthetic bone cement composition of claim 1 , wherein said local anaesthetic agent is released from the bone cement in a preselected characteristic release profile that is determined by at least one of chemical form and physical form of the anaesthetic. (google.ca)
  • 9. The anaesthetic bone cement composition of claim 1 , wherein said local anaesthetic agent is present in an amount between about 0.007% and about 5% by weight of said anaesthetic bone cement composition. (google.ca)
  • 10. The anaesthetic bone cement composition of claim 1 , wherein said local anaesthetic agent is provided in at least two different forms selected from the group consisting of acid, base, solid, and liquid. (google.ca)
  • 14. The anaesthetic bone cement composition of claim 11 , wherein said polymerization initiator is an organic peroxy compound. (google.ca)
  • marrow
  • Use of certain drugs may also lead to a low production of platelets in the bone marrow. (baptistjax.com)
  • Other tests that may help diagnose this condition include bone marrow aspiration or biopsy. (baptistjax.com)
  • Fracture
  • This surgery may be considered following a hip fracture (breaking of the bone) or for someone who has severe pain due to arthritis. (nyhq.org)
  • With bone involvement the first indication for disease may be a pathological fracture. (wikipedia.org)
  • graft
  • The Austin Moore device had a small hole in the stem into which bone graft was placed before implanting the stem. (wikipedia.org)
  • radiation
  • They are generally cured photochemically using UV radiation in contrast to bone cements. (wikipedia.org)
  • The STAR System potentially minimizes additional VCFs due to radiation related bone fragility as well as the side effects of radiation. (wikipedia.org)
  • wherein
  • 10. The device of claim 1 , wherein the first and second end plates include at least one bone engaging member extending longitudinally from the end plates. (google.co.uk)
  • 11. The device of claim 10 , wherein the bone engaging members comprise metal spikes. (google.co.uk)
  • occurs
  • Bone mass and strength are obtained and maintained through a process of bone destruction and replacement that occurs at the cellular level throughout a person's life. (wikipedia.org)
  • pain
  • That can theoretically reduce bone pain," Hepinstall noted. (medicalxpress.com)
  • The pain that accompanies bone involvement may be attributed to "growing pains" in younger children. (wikipedia.org)
  • It may be used to relieve pain associated with metastatic bone disease. (wikipedia.org)
  • Percutaneous osteoplasty involves the use of bone cement to reduce pain and improve mobility. (wikipedia.org)
  • Miraculous' Effects, Pain Relief Of Osteoplasty Shown For Those Suffering From Metastatic Bone Disease. (wikipedia.org)
  • tissues
  • Early in the course of the disease patients are usually asymptomatic, but over time the abnormally proliferating lymphatic channels that constitute lymphangiomatosis are capable of massive expansion and infiltration into surrounding tissues, bone, and organs. (wikipedia.org)
  • procedures
  • Today several million procedures of this type are conducted every year all over the world and more than half of them routinely use bone cements - and the proportion is increasing. (wikipedia.org)
  • disease
  • The condition is most common in the bones and lungs and shares some characteristics with Gorham's disease. (wikipedia.org)
  • Up to 75% of patients with lymphangiomatosis have bone involvement, leading some to conclude that lymphangiomatosis and Gorham's disease should be considered as a spectrum of disease rather than separate diseases. (wikipedia.org)
  • The symptoms of Gorham's disease vary depending on the bones involved. (wikipedia.org)
  • They further stated that their histopathological study provided good evidence that osteolytic changes seen in Gorham's disease are the result of hyperactive osteoclastic bone. (wikipedia.org)
  • treatment
  • Patients should see their primary care physician to begin or review their treatment plan for osteoporosis, including medications to prevent further bone loss. (ausrad.com)
  • A meta-analysis published in 2010 indicated an overall success rate of 85-95% for surgical endodontic treatment using a modern technique, with the evidence level rated high. (wikipedia.org)
  • A similar systematic review published in 2009 suggested an overall success rate of 77.8% for surgical endodontic treatment at 2-4 years, falling to 71.8% at 4-6 years, and 62.9% at 6+ years. (wikipedia.org)