The Pros And Cons Of Joint Implants

"Several medical companies are developing new porous coatings for implants that promote and increase bone ingrowth and reduce bone shielding effects by the use of titanium-based foams or scaffolds," he explained. "Today's technology works by plasmaspraying the powder onto the implant.

There are several factors that go into considering if you may be a good candidate for a Total Knee Replacement. One of the most common causes could be due to all forms of arthritis; such as osteoarthritis, rheumatoid arthritis, and even post-traumatic arthritis. Osteoarthritis is the most common reason for needing a Total Knee Replacement. Arthritis can severely damage an individual’s knee, causing massive pain. However, the first approach is trying the nonsurgical treatments first. Medications and even using walking supports are usually the first approach before considering surgery. When these methods fail to work the very next step is for surgery.

There were more than 1,000,000 total hip and knee replacements in the United States in 2010.1 Prosthetic joint infections (PJIs) are a rare complication of joint replacements, estimated to be less than 2% of cases, but result in significant morbidity and increased healthcare costs.2 Frequently, PJI requires removal of the prosthesis and a prolonged course of IV antibiotics. It has been estimated that the cost of one PJI is approximately $100,000 after a hip arthroplasty and $60,000 after a knee arthroplasty.2

54% have been for revision knee arthroplasties. One patient had both a problematic hip and knee replacement. In 43% of the cases there was a recommendation to change the management plan following discussion in the meeting. In several cases, there has been a significant alteration to the treatment plan; including changing the planned procedure from a single stage to a two stage approach, cancelling planned revision surgery to aspirate the affected joint and obtain a microbiological diagnosis prior to revision, and even changing the joint to be operated on. Following discussion, seven cases (4%) have been transferred to NUH for revision surgery. Analysis of the operative plan and the theatre inventories at each hospital revealed that in 59 cases (35%) extra loan kit was likely to be

Over three hundred thousand hip replacements were performed in 2010. A two hundred percent increase from 2000. The number of replacements has continued to grow as recovery from the surgery has become much faster. Although recovery time has decreased, patients are still at risk of infection from their bodies rejecting the metal replacement hip. Infection from the bodies’ reaction to the metal hip will soon become a problem of the past as researchers have begun making replacement hips out of bone-like material infused with antibiotics. These new replacements will allow the body to heal with the new structure instead of fighting the foreign material. Patients will recover even faster with less chance of infection. Each patient’s hip will be custom-made to model the patient's bone with a new technique called Fused Filament Fabrication

But now, new 3D technology allows doctors to make knees that are the perfect fit,” (New 3D Knee Replacement Are a Better Fit for Patients). Knee replacements that don't fit correctly, can cause massive amounts of pain, but 3D technology solves this problem. “ Fitch Lockwood has a knee that’s pain free and can bend better than most 64-year olds, “ (3D Printed Knee Replacement Could Offer Decades of Pain free Mobility). With no pain, people, and the elderly can move around longer with having to say the dreaded words, “I need to sit down for a little bit.” There are many skier that get this procedure done, because of it can do in the long run, “Duggan had a knee replaced on Sept. 17 and the other done on Nov. 19. He had been in so much pain that even right after his first surgery he felt better” (Finding a Perfect fit in knee

Implant overdentures have contraindications, mainly in relative to the risks related to the surgical procedures, even if in specific cases it can be regarded as a minimally invasive one. Additionally, using this specific treatment concept is limited to cases with reduced prosthetic vertical space that makes it impossible to apply the attachment systems and also provide adequate prosthesis resistance (e.g., using Locators requires a minimum of 8.5mm vertical space and 9mm horizontal space; bar attachments require 10 to12 mm vertical space) .Implant overdentures are not recommended when there is a decreased D4 bone density, in bruxism and in severe oral hygiene deficiency.

Arthritis or rheumatism is the leading cause of disability [1]. Arthritis is inflammation of one or more of the joints and the main symptoms of arthritis are joint pain and stiffness, which typically worsen with age [1]. More than 20 million individuals with arthritis have severe limitations in function on a daily basis [2]. Majority of the patients, who goes through this disability, finds their solution by doing Total Hip Replacement (THR) surgery. More than 285,000 hip replacements are performed in the U.S. each year [3]. It is estimated that by 2030 there will be an increment of 175% in the THR surgeries rising the numbers to 0.5 Million [3].Thus, these numbers portray the importance of hip replacement surgeries in the near future. Hip joint deterioration can lead to pain, stiffness or difficulty walking. When these symptoms do not respond to conservative treatment, such as physical therapy, patients may be advised to undergo total hip replacement or hip resurfacing. As part of this treatment, they may receive a “metal-on-metal” hip implant in which the “ball and socket” of the device are both made from metal as shown in Figure 1. These metal implants have been used in total hip replacement (THR) surgeries and hip resurfacing procedures. Because of metal's durability, MoM devices were expected

In the last few decades, Science has discovered many fascinating discoveries which has increased life expectancy and have made human lives less painful. One of the brilliant discoveries has been being able to renovate human body parts. However, all of these great techniques and methods to “repair” human body parts also have the side effects. The greatest example would be dental implantation which brings back the ‘taste’ in many lives. While reading the article, “Prevalence and Predictive Factors for Peri-Implant Disease and Implant Failure: A Cross-Sectional Analysis”, I learned that dental implantation is also causing the disease called “Peri-implant” which cause discomfort, negative impact on health and may lead to loss of the implant.

Group 2 cases were performed after we implemented all major improvements described herein. The 8-year KM implant survivorship was 97.7% in Group 2 compared to 89.9% in Group 1 (p <0.0001). Correspondingly, the occurrence of the following failure mechanisms significantly decreased after 2008: AWRF, acetabular component loosening, femoral component loosening, and unexplained pain. Additionally, there were no revisions beyond 3 years in Group 2, while Group 1 had 27 late failures.

The dental implants have completely changed the foundation of the oral rehabilitation due to their well demonstrated success rates(95%) and high predictability (Esposito et al,2011).As an increasing number of people are receiving implants2,9,10,11,12,13,14 ,there has been ,simultaneously ,a growing interest in identifying the components that can predispose individuals to lower rates of success and cause a significant loss to both the dental practitioner and the patient14,17,18.Broadly ,these factors may be classified as ;patient, clinician or implant associated15,16.

Joint replacement is entering an era of greater minimally invasive alternatives, which provide patients with options to minimize recovery time and financial expense. The three major costs of joint replacement surgery include the price of the implant, extraneous hospital fees, and postoperative rehabilitation expenses [1]. Although minimizing length of stay would reduce these costs, several factors traditionally necessitate overnight hospitalization for arthroplasty patients, including pain control, blood loss, and monitoring of comorbidities. However, with recent advancements in analgesia technology, implant design, surgical technique, and postoperative management [2], many practices now offer outpatient surgery as an alternative to decrease

People undergo total knee replacement when arthritis or injury erodes the joint's natural cushioning to the point where it's hard to walk even short distances without severe pain.

In this study, the ISO 7206-4 numerical simulation was performed [41]. (Fig.2) shows the distribution of highest Von Mises stress in the hip implants. From this (Fig.2), it is evident that fatigue failure can occur in regions of highest stress. Fatigue safety factor is greater than 1, then it is safe below 1 is unsafe. The fatigue safety factor from Goodman’s fatigue theories for experiment no.2 hip implant is less than 1, so this implant may be fail in fatigue according to Goodman’s fatigue theory. The fatigue safety factors of all the other implants are greater than 1, so all other hip implants are safe for fatigue failure.

Internal fixation devices in the past had been made of stainless steel or titanium, but with problems resulting from those permanent devices, an innovative approach is being considered. Bioresorbable implants are a possible replacement to the original implants that would eliminate the need for removal, which has shown to be a problem for traditional implants.