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Topic: Bone grafting

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Nat' Academies Press, Proceedings from the Workshop on Science-Based Assessment: Accelerating Product Development of Combination Medical Devices (2004) Theoretically, rhBMP-2 could be used in any bone grafting procedure, but because FDA currently requires approval for each specific spinal infusion technique or bone grafting procedure, limitations on company resources prohibit the development of products for all procedures. Less stringent FDA clearances for use of the identical bone graft replacement product in expanded clinical bone grafting indications would significantly accelerate the process development. Since the contribution of the bone graft replacement in a combination biologic medical device is the initiation of bone formation, the clinical protocol should involve the utilization of thin-slice computed tomography (CT) scans to assess the degree of bone formation and fusion. www.nap.edu /books/NI000562/html/14.html   (1530 words)

Carle Clinic Association: Special Services/Bone Grafting In the maxillofacial region, bone grafts can be taken from inside the mouth, in the area of the chin or third molar region or in the upper jaw behind the last tooth. This procedure involves elevating the sinus membrane and placing the bone graft onto the sinus floor, allowing implants to be placed in the back part of the upper jaw. In severe cases the ridge has been reabsorbed and a bone graft is placed to increase the ridge height and/or width. www.carle.com /clinic/OralSurgery/bonegrafting.htm   (427 words)

Bone Morphogenetic Protein (BMP) Because these patients did not require bone grafting from the pelvis, their hospital stays were shorter and their post-surgical pain was less than typically seen with traditional bone grafting techniques. Moreover, the bone grafting technique does not always reliably result in successful fusion of the vertebrae because of occasional inadequate bone growth. Although this procedure can be very effective for the treatment of certain spinal disorders, the bone transplantation procedure (bone grafting) can prolong surgery, increase blood loss, increase hospital stay, increase recovery time, and increase recovery pain. www.spineuniverse.com /displayarticle.php/article1544.html   (707 words)

Vascularized Fibular Grafting for Treatment of Osteonecrosis of the Hip Due to the complexity of vascularized bone grafting, it is recommended that patients seek out surgeons who have experience with this procedure. Vascularized fibular bone grafting is a fairly complex surgical procedure involving two surgical fields. Free vascularized fibular grafting may be considered medically necessary in the treatment of avascular necrosis of the femoral head. www.regence.com /trgmedpol/surgery/sur75.html   (1249 words)

c14.htm The osteoinductive capacity of a BMP is expected to allow it to be used clinically to enhance regeneration of bone in cases that would normally require bone grafting. Various bone grafting materials are used with different degrees of success. These materials include autogenous bone (commonly harvested from the patient’s iliac crest), allogeneic bone, bone graft substitutes (e.g., tricalcium phosphate and porous hydroxyapatite), or a combination of these materials. www.orl.med.umich.edu /orl/clin/c14.htm   (553 words)

Fracture Complications - Non Unions Case Bone gap closed without bone grafting, bone length restored By internally moving his bone pieces, without bone grafting, his bone failed to heal inspite of prolonged treatment. www.cjthakkar.com /nonunion.html   (553 words)

Medical grafting - Wikipedia, the free encyclopedia The term is most commonly applied to skin grafting, however many tissues can be grafted: skin, bone, nerves, tendons and cornea are the tissues commonly grafted today. Another relatively common form of animal grafting for humans is grafting a limb onto the stub of another limb missing the part that is being grafted onto it. In medicine, grafting is a surgical procedure to transplant tissue without a blood supply. en.wikipedia.org /wiki/Medical_grafting   (144 words)

MedlinePlus Medical Encyclopedia: Bone fracture repair Bone grafting may be performed using the patient's own bone, usually taken from the hip, or using bone from a donor. Bone fracture repairs are surgical procedures to realign and stabilize broken bones (fractures) with plates, nails, screws, or pins. Bone grafts may be used to allow for proper healing or to speed the healing process. www.nlm.nih.gov /medlineplus/ency/article/002966.htm   (598 words)

SCAPHOID FRACTURES - FAQ After a nonunion and bone grafting, this period is three months unless the blood flow is poor in which case the period of activity restriction may be longer. This scaphoid bone is particularly prone to this for several reasons: there is the possibility of the fracture being missed at the initial injury leading to a delay in treatment; secondly, the bone has a poor blood supply. Fractures that are complete, particularly if they are displaced to any degree, take a much longer time in a cast to heal and may not heal at all. www.arthroscopy.com /sp04013.htm   (1995 words)

Revascularization of Avascular Necrosis of the Capitate Bone -- Murakami et al. 179 (3): 664 -- American Journal of Roentgenology Curettage of the capitate bone marrow and autogenous grafting to the capitate bone from the palmar carpal branches of the implicated in chronic vascular disturbance to the capitate bone [4]. www.ajronline.org /cgi/content/full/179/3/664   (1995 words)

SCAPHOID FRACTURES - FAQ After a nonunion and bone grafting, this period is three months unless the blood flow is poor in which case the period of activity restriction may be longer. This scaphoid bone is particularly prone to this for several reasons: there is the possibility of the fracture being missed at the initial injury leading to a delay in treatment; secondly, the bone has a poor blood supply. The average time for a fracture of the waist of the scaphoid of a bone that is not displaced is three months in a cast. www.arthroscopy.com /sp04013.htm   (1995 words)

eMedicine - Wrist, Scaphoid Fractures and Complications : Article by Carol A Boles, MD A bone graft often is placed in an attempt to promote healing, although some consider AVN a contraindication to bone grafting The radiographic hallmark of osteonecrosis is collapse and fragmentation (see Image 6). A scaphoid fracture is part of a spectrum of injuries based on 4 factors: (1) the direction of 3-dimensional loading, (2) the magnitude and duration of the force, (3) the position of the hand and wrist at the time of injury, and (4) the biomechanical properties of ligaments and bones. Scaphoid fractures can also be classified according to the plane of fracture with respect to the long axis of the scaphoid into horizontal oblique, transverse, and vertical oblique fractures (see Image 10). www.emedicine.com /radio/topic747.htm   (6944 words)

LLU School of Dentistry Journal This case demonstrates the difficulty in obturation of large facial reconstructions where the skin itself is involved in the neoplastic process leaving poor margins for interfacing with the nasal prosthesis and where underlying bony margins are insufficient for the reception of osseous implants without extensive bone grafting. There was adequate bone in the right maxillary area at the junction of the zygomatic buttress with the margins of the defect and a 3.5mm x 10mm implant was placed in a horizontal orientation in that area. It was decided that the bar previously placed required elongation to accommodate the nasal prosthesis and that the nasal prosthesis could be held with Hader clips to the bar without the necessity of using the superiorly based implant in the nasal bone itself. www.llu.edu /llu/dentistry/journal/sum00/postoncolsurgery.html   (1357 words)

eMedicine - Hand, Fractures and Dislocations: Wrist : Article by Edward E Tredget, MD, MSc, FRCS(C) Revascularization techniques such as vascular bone grafting for AVN of the scaphoid and lunate have been described and developed by a variety of researchers. Normally, the kidney-shaped lunate holds the head of the capitate with its concave surface and articulates with the distal radius with its proximal convex surface. Both bones try to influence the lunate through their respective ligamentous attachments, but in opposite directions (see Image 3). www.emedicine.com /plastic/topic318.htm   (9681 words)

Bone Healing Studies Their clearly documented resistance to the usual forms of surgical treatment, including bone grafting, served as a reasonable control in judging the efficacy of this new therapeutic method, particularly when PEMFs were the sole change in patient management. Healing of nonunion of a fractured lateral condyle of the humerus by pulsing electromagnetic induction. The bone mineral density (BMD) and weight of the femurs were measured at 1st and 3rd week after implantation.The result at the 3rd week post-implantation revealed that the BMD and weight of the ischemic bone model rats were significantly reduced, compared with that of non-operated femur. www.therionresearch.com /database/bone_healing.html   (8508 words)

eMedicine - Hand, Fractures and Dislocations: Wrist : Article by Edward E Tredget, MD, MSc, FRCS(C) Revascularization techniques such as vascular bone grafting for AVN of the scaphoid and lunate have been described and developed by a variety of researchers. Hamate fractures most often occur during trauma or golf, baseball, hockey, and other stick-handling sports; the hamate bone most often fractures at the hamulus (see Image 6). Bone scan of the wrist illustrating increased uptake in the left wrist after Herbert screw fixation of a transscaphoid perilunate fracture dislocation of the wrist 3 months postoperatively. www.emedicine.com /plastic/topic318.htm   (8508 words)

Building the Perfect Bone - Summer 2003 - Washington State Magazine Every year, approximately 800,000 bone grafting or replacement procedures are done in the U.S. For people with damaged bones, current treatments call for the use of either metal screws or plates, or portions of bone from other parts of their own bodies or from the bodies of others. When bone pieces are taken from the patient’s own body, two surgeries are required, creating additional trauma for the patient. Bone pieces taken from other people’s bodies carry the chance of rejection or transmission of viral diseases. washington-state-magazine.wsu.edu /stories/03-summer   (8508 words)

Fractures of the Radius - Wheeless' Textbook of Orthopaedics - The necessity of acute bone grafting in diaphyseal forearm fractures: A retrospective review. Fractures of the distal end of the radius in young adults: a 30-year follow-up. Intra-articular fractures of the distal end of the radius in young adults. www.wheelessonline.com /ortho/fractures_of_the_radius   (8508 words)

Phalloplasty, or Surgical Penile Enlargement can increase penis size This is accomplished by resecting (cutting) a portion of the suspensory ligaments which hold the penis against the undersurfaces of the pubic bone between your legs. Knowledge was gained through our experience with transferring or grafting free fat from liposuction to other areas of the body (such as the face) that some of the fat graft, for various reasons, would disappear. Because the penile shaft is narrower than the maximum diameter of the head, the doctor usually fills out the shaft slightly beyond the head's maximum diameter to maintain proper proportion. www.drgiunta.com /phallo_thick_length.html   (8508 words)

Penile dysfunction help covering enlargement,viagra, cialis & erectile problems Please understand that fat grafting techniques have evolved over the past five years. Penile lengthening has been described in urologic literature for at least 40 years and interestingly, most of the articles have dealt with surgery on boys with concealed or "buried" penises. Despite refinements, fat resorption and fibro-fatty nodules could occur, but a Dr. Morganstern recommends a special penile pump to be used consistently after the surgery to help prevent this and to retain increased length and girth. www.vigrx.org.uk /?a=1028896471   (8508 words)

eMedicine - Navicular Fracture : Article by Michael J Ameres, MD These include (1) curettage and bone grafting, (2) internal fixation, (3) excision of the symptomatic ossicles, or (4) a combination of these techniques. The medial longitudinal arch is composed of the navicular, calcaneus, talus, 3 cuneiforms, and 3 medial metatarsals. Pinney SJ, Sangeorzan BJ: Fractures of the tarsal bones. www.emedicine.com /sports/topic85.htm   (4293 words)

Table of contents for Bone grafting techniques for maxillary implants 68 5:70 Bone graft and osteosutures in the down-fractured maxilla. 32 3:18 The inferior alveolar nerve is medial to the bone graft region. BONE BIOLOGICAL PRINCIPLES 13 History 13 Indications and Terminology 13 Bone sources 14 Healing principles and success factors 14 Future aspects 16 2. www.loc.gov /catdir/toc/ecip0421/2004019236.html   (2367 words)

All About Back & Neck Pain: Articles Bone grafting is used for many types of orthopedic procedures that require bones to heal. Bone tissue that is crushed into powder and placed around a fracture or a fusion site has chemicals in it that stimulate the nearby bones to heal. If the bone is taken from the person's own body, there may also be osteocytes (living bone cells) that survive being transferred to the new location and continue to do their work of making new bone. www.allaboutbackandneckpain.com /html/spinesub.asp?id=17   (849 words)

Arch Otolaryngol Head Neck Surg -- Abstract: Ethmoid bone sandwich grafting for caudal septal defects, October 1994, Metzinger et al. 120 (10): 1121 Ethmoid bone sandwich grafting for caudal septal defects Arch Otolaryngol Head Neck Surg -- Abstract: Ethmoid bone sandwich grafting for caudal septal defects, October 1994, Metzinger et al. bone sandwich grafting technique corrected severe caudal septal deviations archotol.ama-assn.org /cgi/content/abstract/120/10/1121   (849 words)

Surgery of the Ear and Temporal Bone Complementing the text are more than 600 clear illustrations, including over 200 in color.The book begins with a comprehensive guide to presurgical evaluation and thoroughly illustrated reviews of soft tissue incisions and approaches, skin grafting, and osseous approaches to the temporal bone. Organized on a problem-oriented basis, the book not only shows how to perform various surgical procedures, but also explains how to select the best approach for the disease being treated and details the indications, contraindications, and complications of each procedure. Coverage includes plastic and reconstructive surgical procedures for auricular deformities.A set of 250 slides of illustrations from this book, many of them in full color, is also available. www.ramex.com /title.asp?id=10532   (361 words)

Arch Otolaryngol Head Neck Surg -- Abstract: Cranial bone grafting in facial aesthetic and reconstructive contouring, July 1987, Powell and Riley 113 (7): 713 Cranial bone grafting in facial aesthetic and reconstructive contouring Arch Otolaryngol Head Neck Surg -- Abstract: Cranial bone grafting in facial aesthetic and reconstructive contouring, July 1987, Powell and Riley 113 (7): 713 Harvesting of outer-table cranial bone for major craniofacial surgery can archotol.ama-assn.org /cgi/content/abstract/113/7/713   (361 words)

Surgical Investigation of Maxillary Bone Loss - Medical Illustration Surgical Placement of Maxillary Implants with Bone Grafting - exh4921 Reconstruction of Maxillary Defect with Iliac Crest Bone Grafts and Reconstruction of Maxillary Defect - exh5215c Surgical Investigation of Maxillary Bone Loss - Medical Illustration catalog.nucleusinc.com /generateexhibit.php?ID=290   (361 words)

Bone Disorders - Giant Cell Tumor bone grafting - a surgical procedure in which healthy bone is transplanted from another part of the patient's body into the affected area. The location of a giant cell tumor is often in the knee, but can also involve the bones of the arms and the legs, or the flat bones such as the sternum (breastbone) or pelvis. x-rays - a diagnostic test which uses invisible electromagnetic energy beams to produce images of internal tissues, bones, and organs onto film. www.viahealth.org /disease/bone_disorders/giant.htm   (361 words)

Questions and Answers About Avascular Necrosis Bone grafting is surgery that transplants healthy bone from one part of the patient, such as the leg, to the diseased area. The goal in treating avascular necrosis is to improve the patient's use of the affected joint, stop further damage to the bone, and ensure bone and joint survival. Avascular necrosis is a disease resulting from the temporary or permanent loss of the blood supply to the bones. www.niams.nih.gov /hi/topics/avascular_necrosis   (361 words)

New Approach for Disc-related Back Pain - Detroit, Michigan, Henry Ford Health System The plugs are removed and replaced with small, cylinder cages containing bone grafting material called rhBMP (recombinant human bone morphogenetic protein). Traditional spinal fusion is performed through an incision in the back and involves two surgeries: one to harvest bone from the patient’s hip, which is often painful, and another to remove the damaged disc and implant the bone graft in the spine. The protein stimulates bone growth in and around the titanium cage implants to form a bridge that connects the vertebra. www.henryfordhealth.org /19124.cfm   (290 words)

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