Gender Specific Designs Not Required for Hip Replacement 2008Updated 5/12/09SAN FRANCISCO March 7, 2008 – According to prospective data analysed in a poster presentation at the American Academy of Orthopaedic Surgeons (AAOS) 75th Annual Meeting, there is no support for the notion that women need gender-specific designs for the total hip replacements (THRs) now on the market, which are tailored to their smaller stature and different anatomy…
…Dr. Bourne reached this conclusion after considering findings from 1,924 women and 1,537 men who underwent a total of 4,114 consecutive THRs after at least 2 years following the surgery……
Cross-Linked Plastic Better Than Conventional Polyethylene for Hip Replacement 2008Updated 5/12/09SAN FRANCISCO March 6, 2008 – A cross-linked polyethylene hip replacement surface holds up better to wear over 6 years compared with the polyethylene product that is used conventionally.
Investigator Michael J. Anderson, MD, Adjunct Faculty, Columbia St. Mary’s Hospital, Milwaukee, Wisconsin, presented findings from a prospective, randomised trial here on March 5 at the American Academy of Orthopaedic Surgeons (AAOS) 75th Annual Meeting…
…Dr. Anderson said that cross-linked polyethylene is now the standard of care for hip replacement. “This may represent the most cost-effective change in years” to hip replacement surgery, he concluded.
Alampallam Venkatachalam Orthopedic surgery for trauma and elective problems like joint replacement is popular amongst the urban and rural population. However due to supply & demand discrepancies, advertising has a big role. The gullible public often is at risk of misinterpreting the reams of information brought out by hospitals. They may land up with their expectations falling short of what was promised. In this article I shall attempt to clarify some commonly heard terms and discuss the possibilities and limitations of the procedure and thereby remove some misconceptions.
Key Hole surgery- is another term for Arthroscopic surgery. The arthroscope is a device introduced into joints through key-hole incisions about 5 mm wide to inspect the internal structures. The orthopedic surgeon often makes 1- 4 key holes during performance of diagnostic and therapeutic procedures all of the same size. Through these other holes or portals, similar sized instruments of 5 mm width are inserted to smoothen, cut, trim or suture damage structures.…
By Maureen Bracken Close to 200,000 hip replacement surgeries are performed each year in the United States. Over 90% are successful with no hip replacement complications during or after surgery. But as with all surgeries, the risk of complications is always a possibility. However, complications are infrequent and often reversible.The older the person is the higher the risk of complications. A person over 80 years old has a 20% chance of developing at least one complication after hip replacement surgery.Hip replacement complications during surgeryNerve damageThe sciatic nerve is at risk of being accidentally surgically cut due to its close proximity to the capsule of the hip joint. This same nerve may also become over-stretched during hip manipulation during surgery.Depending on the extent of the nerve damage, temporary or permanent damage may result. There may be loss of muscle power and feeling in parts of the leg.…
Depuy Duroloc Ceramic on Ceramic HipUpdated 8/4/09 New Device ApprovalDuraloc® Option Ceramic Hip System – P040023This is a brief overview of information related to FDA’s approval to market this product. See the links below to the Summary of Safety and Effectiveness and product labeling for more complete information on this product, its indications for use, and the basis for FDA’s approval.Product Name: Duraloc® Option Ceramic Hip System Applicant: DePuy Orthopaedics, Inc. Address: 700 Orthopaedic Dr., P.O. Box 988 , Warsaw , IN 465810988 Approval Date: May 3, 2005 Approval Letter: http://www.fda.gov/cdrh/pdf4/P040023a.pdfWhat is it? The Duraloc® Option Ceramic Hip System is a ceramic on ceramic artificial hip replacement system, surgically implanted to completely replace a hip joint.How does it work? The Duraloc® Option Ceramic Hip System consists of:
a metal hip stem, that a doctor places into a hole drilled in the end of the thigh bone;
a ceramic, ball-shaped part (femoral head) that attaches to the hip stem;
a metal, socket-shaped part (acetabular cup) implanted into the pelvis that the femoral head fits into; and
a ceramic insert that fits into the acetabular cup.
Core Decompression is used for young patients with initial stages of osteonecrosis of the hip, before the head collapses.
The patients is usually on crutches for 6 – 24 weeks. The results depend on the size of the osteonecrosis. In small size damages, the core decompression has up to 80% successful results. In advanced stages, the results can be less than 30% successful.
This is the most used operation to treat the osteonecrosis of the hip. It is called "decompression operation" because the operations is based on the idea that the blood pressure in the bone tissue around the death bone focus is increased.
Opening the area of the dead bone from outside will attain three objectives:
lower – decompress the blood pressure
restore the blood circulation to the dead bone tissue
The surgeon hopes that a new, healthy bone tissue will grow into the necrotic (dead) bone and rebuild it successively.
Deltamotion Ceramic INCREASED FLEXIBILITY AND DURABILITYAs the first cementless acetabular cup with a pre-assembled delta ceramic liner, the DELTAMOTION® Hip System uses clinically established technology in an innovative way to provide a novel, best-in-class solution for younger patients, particularly those with small acetabulae, to give them security and confidence. It uses the most advanced materials and technology which allows optimisation of the head-to-cup ratio, allowing use of larger heads in small diameter acetabulae. This dramatic increase in femoral head-to-acetabular diameter sizing allows levels of range of motion, head engagement, stability and wear of the replaced hip, unique in Ceramic on Ceramic (CoC) technology. Efficiency The DELTAMOTION® Hip System uses the world’s first large diameter pre-assembled CoC bearing, and the BIOLOX DELTA® ceramic and titanium alloy ensures optimised head-to-cup ratio without compromising stability. The larger head size offers a wide range of motion compared with other CoC systems, making it a good all-rounder for young, active patients.…
Corin MiniHip Bone Conserving Hip ReplacementUpdated 3/18/2012Corin MiniHip Bone Conserving Hip Replacement With its bone conserving stem and range of articulations, the Corin MiniHip provides a solution for today’s challenging and active patient:
Short stem to conserve bone for a less invasive procedure.
Titanium alloy for increased bio-compatibility.
Multiple high performance articulations.
Polished slim neck for increased range of motion.
Mid-neck resection for preservation of the femoral neck.
Fins for increased rotational stability.
Medial curve following medial calcar radius for a more anatomical bone conserving fit.
Bi-coat for initial fixation and osteointegration
Polished distal tip to prevent distal fixation, may help to reduce the risk of anterior thigh pain
Nine sizes with increasing neck length for a proportional fit.
FDA Approves DePuy Orthopaedics Ceramax SystemUpdated 6/15/2011DePuy Orthopaedics Ceramax System – P070026 FDA Gov. Website – Approved Devices original FDA Notice Original FDA Approval announcementThis is a brief overview of information related to FDA’s approval to market this product. See the links below to the Summary of Safety and Effectiveness Data (SSED) and product labeling for more complete information on this product, its indications for use, and the basis for FDA’s approval.Product Name: Ceramax Ceramic Total Hip System PMA Applicant: DePuy Orthopaedics, Inc. Address: 700 Orthopaedic Drive, P.O. Box 988, Warsaw, Indiana 46581-0988 Approval Date: December 23, 2010 Approval Letter: http://www.accessdata.fda.gov/cdrh_docs/pdf7/p070026a.pdf1What is it? The Ceramax Ceramic Hip System is a ceramic on ceramic artificial hip replacement system, surgically implanted to completely replace a hip joint.How does it work? The Ceramax Ceramic Hip System consists of:
A metal hip stem that a doctor places into a hole drilled in the end of the thigh (hip) bone (femur).
http://www.thehipclinic.co.uk/total_hip.htm If you are over 75 yrs of age, it probably does not matter which hip you get. A cemented hip is reliable and generally much cheaper if this is an issue. Choose your surgeon by experience and reputation. Ask about minimal incision hip surgery but do not insist on this. Allow your surgeon to make a bigger hole if he/she has to!If you are between 65 and 75 years of age, you must ask what hip you will be getting and why. Cemented THR of the Exeter, Charnley, Lubinus, Stanmore or Muller type remain the ‘Gold Standard’ and have improved enormously since the 1960’sThere are good uncemented devices but there are also some that gave spectacularly bad results. Ask about metal-on-metal or ceramic-on-ceramic. The size of your hip scar is not the most important issue! If you are under 65 yrs do not rest until you find an experienced Hip Resurfacing surgeon.…
Ceramic-on-Ceramic Total Hip Device HistoryCurrently, the risk for fracture of the ceramic component is less than 1 in 2000 implantations during a period of 10 years (1/20000). Initially, there was a risk of 1 %! This material was been introduced in 1970. It was first implanted by Pierre Boutin in France, afterwards by Mittelmeier in Germany. The purpose was to reduce the production of wear particles in order to obtain better results in the young patient. In the meantime, more than 150.000 ceramic-on-ceramic devices have been implanted, especially in Europe.Initially, there were a lot of problems, caused by fracture of the ceramic or osteolysis around the ceramic components. However, other studies of large series were more optimistic. The first implant devices failed, not only because of the minor quality of the ceramic (oxidized aluminum), but also because of the wrong design and difficult surgical technique.…