scholarly journals The Needs of Current Implant Technology in Orthopaedic Prosthesis Biomaterials Application to Reduce Prosthesis Failure Rate

2016 ◽  
Vol 2016 ◽  
pp. 1-9 ◽  
Author(s):  
Ahmad Jabir Rahyussalim ◽  
Aldo Fransiskus Marsetio ◽  
Ifran Saleh ◽  
Tri Kurniawati ◽  
Yudan Whulanza
Keyword(s):  
Elastic Modulus ◽  
Aseptic Loosening ◽  
Failure Rate ◽  
High Stability ◽  
Healing Process ◽  
Implant Failure ◽  
Prosthesis Failure ◽  
Metallic Biomaterial ◽  
Fatigue Corrosion ◽  
Early Healing

Today, orthopaedics is still in search for the most reliable biomaterial for prosthesis. The biomaterial needs to have good longevity and other supporting properties in order to maintain low implant failure. An ideal metallic biomaterial should be biocompatible, has similar elastic modulus to that of bone, has excellent resistance to fatigue, corrosion, aseptic loosening, and wear, and has good bone-bonding ability. The success of an implant depends on many factors. Good osseointegration is one of the factors required to reduce the rate of loosening of implants and in order to increase the chance of osseointegration, high stability of implants and early healing process encouragement are needed.

Unexpected low-grade infections in revision hip arthroplasty for aseptic loosening

2021 ◽  
Vol 103-B (6) ◽  
pp. 1070-1077
Author(s):  
Christian Hipfl ◽  
Wiebke Mooij ◽  
Carsten Perka ◽  
Sebastian Hardt ◽  
Georgi I. Wassilew
Keyword(s):  
Aseptic Loosening ◽  
Hip Arthroplasty ◽  
Joint Infection ◽  
Implant Failure ◽  
Revision Hip Arthroplasty ◽  
Coagulase Negative Staphylococcus ◽  
Histopathological Analysis ◽  
Low Grade ◽  
Single Specimen ◽  
Musculoskeletal Infection

Aims The purpose of this study was to evaluate unexpected positive cultures in total hip arthroplasty (THA) revisions for presumed aseptic loosening, to assess the prevalence of low-grade infection using two definition criteria, and to analyze its impact on implant survival after revision. Methods A total of 274 THA revisions performed for presumed aseptic loosening from 2012 to 2016 were reviewed. In addition to obtaining intraoperative tissue cultures from all patients, synovial and sonication fluid samples of the removed implant were obtained in 215 cases (79%) and 101 cases (37%), respectively. Histopathological analysis was performed in 250 cases (91%). Patients were classified as having low-grade infections according to institutional criteria and Musculoskeletal Infection Society (MSIS) International Consensus Meeting (ICM) 2013 criteria. Low-grade infections according to institutional criteria were treated with targeted antibiotics for six weeks postoperatively. Implant failure was defined as the need for re-revision resulting from periprosthetic joint infection (PJI) and aseptic reasons. The mean follow-up was 68 months (26 to 95). Results Unexpected positive intraoperative samples were found in 77 revisions (28%). Low-grade infection was diagnosed in 36 cases (13%) using institutional criteria and in nine cases (3%) using MSIS ICM 2013 criteria. In all, 41 patients (15%) had single specimen growth of a low-virulent pathogen and were deemed contaminated. Coagulase-negative Staphylococcus and anaerobes were the most commonly isolated bacteria. Implant failure for PJI was higher in revisions with presumed contaminants (5/41, 12%) compared to those with low-grade infections (2/36, 6%) and those with negative samples (5/197, 3%) (p = 0.021). The rate of all-cause re-revision was similar in patients diagnosed with low-grade infections (5/36, 14%) and those with presumed contaminants (6/41, 15%) and negative samples (21/197, 11%) (p = 0.699). Conclusion Our findings suggest that the presumption of culture contamination in aseptic revision hip arthroplasty may increase the detection of PJI. In this cohort, the presence of low-grade infection did not increase the risk of re-revision. Further studies are needed to assess the relevance of single specimen growth and the benefits of specific postoperative antibiotic regimens. Cite this article: Bone Joint J 2021;103-B(6):1070–1077.

Comparison of Early Implant Failure Rates Between Subjects With and Without Orthodontic Treatment Before Dental Implantation

2019 ◽  
Vol 45 (1) ◽  
pp. 29-34
Author(s):  
Li-ching Chang ◽  
I-ming Tsai
Keyword(s):  
Treatment Group ◽  
Failure Rate ◽  
Orthodontic Treatment ◽  
Implant Failure ◽  
Control Group ◽  
Failure Rates ◽  
Implant Surgery ◽  
Dental Implantation ◽  
And Control

The present study compared early dental implant failure rates between patients with and without orthodontic treatment before dental implantation. The data of adults who had undergone dental implantation between January 2007 and December 2016 were analyzed retrospectively. A total of 124 subjects with 255 implants were divided into a treatment group (46 subjects, 85 teeth) consisting of patients who had undergone implant surgery after orthodontic treatment and a control group of patients who had not undergone preimplant orthodontic treatment. Implants that failed before permanent crown fabrication were defined as failures. No significant differences in gender or age were found between the treatment group and controls. No significant differences were found in implant failure rates in either jaw between the treatment and control groups. However, the failure rate was still higher in the treatment group (14.81%) than in the control group (3.28%) for the maxilla. Results of this study demonstrate an increased implant failure rate only in the maxilla of patients who underwent orthodontic treatment before dental implantation, especially implant surgery combined with a sinus lift procedure. Further study with a larger sample size and longer follow-up period is necessary to confirm results of the present study and identify other confounding factors.

Comparison of early healing process of bone tissue after irradiation by Er:YAG laser and CO2 laser

2003 ◽  
Vol 1248 ◽  
pp. 385-387 ◽  
Author(s):  
Amir Pourzarandian ◽  
Hisashi Watanabe ◽  
Akira Aoki ◽  
Shizuko Ichinose ◽  
Katia M. Sasaki ◽  
...  
Keyword(s):  
Bone Tissue ◽  
Co2 Laser ◽  
Er:Yag Laser ◽  
Healing Process ◽  
Early Healing

Mechanical Failure of Angle Locking Plates in Distal Comminuted Tibial Fractures

2016 ◽  
Vol 695 ◽  
pp. 118-122 ◽  
Author(s):  
Razvan Ene ◽  
Zsombor Panti ◽  
Mihai Nica ◽  
Marian Pleniceanu ◽  
Patricia Ene ◽  
...  
Keyword(s):  
Internal Fixation ◽  
Bone Healing ◽  
Tibial Fracture ◽  
Weight Bearing ◽  
Healing Process ◽  
Biomechanical Properties ◽  
Implant Failure ◽  
Locking Plates ◽  
Non Union ◽  
Tibial Pilon

Distal comminuted tibial fracture with or without intra-articular involvement is a very common injury of the lower limb, especially in younger patients due to high energy trauma. The anatomical and biomechanical properties of this segment of tibia, makes this pathology a major surgical challenge with a preserved clinical outcome. The aim of this study is to present different outcome of tibial fracture, treated with open reduction and internal fixation (ORIF) with titanium angle locking plates (ALP) and to underline the physiological and non-physiological bone healing effects on implants. In this study we included 48 patients with tibial pilon fracture who underwent to ORIF, applying ALP in the Orthopedics and Trauma department of the University Emergency Hospital in Bucharest. Due to preserved biomechanical properties of ALP and this anatomical region, weight bearing is not allowed till 6 to 8 weeks. Comminuted fracture of this part of tibia often have de-vascularized bony fragments which leads to delayed union or non-union. These complications often lead to implant failure, improper bone healing or non-union. Internal fixation with angle stable screws, offers a good stability of reduction in the early postoperative period. Titanium angle locking plates offers good anatomical reduction and stable fixation in the early period of healing process. Due to its rigid, fixed position of the screws in the plates, bone remodelling during healing process and early weight bearing, increases the mechanical failure of implant.Keywords: tibial pilon fractures, angle locking plates, implant failure.

scholarly journals Stability of Mini-Screws Invading the Dental Roots and Their Impact on the Paradental Tissues in Beagles

2009 ◽  
Vol 79 (2) ◽  
pp. 248-255 ◽  
Author(s):  
Yoon-Goo Kang ◽  
Ji-Young Kim ◽  
Young-Jun Lee ◽  
Kyu-Rhim Chung ◽  
Young-Guk Park
Keyword(s):  
Failure Rate ◽  
Adult Male ◽  
Alveolar Bone ◽  
Healing Process ◽  
Beagle Dogs ◽  
Tissue Samples ◽  
Retention Period ◽  
The Stability ◽  
Original Configuration ◽  
Periodontal Ligaments

Abstract Objective: To examine the stability of mini-screws that invade a dental root by measuring the retention period/failure rate, and to illustrate their effects on paradental tissues. Materials and Methods: Three adult male beagle dogs received 48 orthodontic mini-screws. Half of the mini-screws were implanted to invade the roots, and the rest were placed in the middle of the alveolar bone. Half of the mini-screws were loaded immediately. The retention period of the mini-screws was documented. The dogs were euthanized after 8 weeks, and tissue samples were examined histologically. Results: The failure rate of the mini-screws that invaded the roots was 79.2%, and that of the mini-screws in the middle of the alveolar bone was 8.3%. The application of force had little effect on the failed mini-screws. Moderately injured roots were repaired with osteoid and/or cementoid tissues with normal periodontal ligaments, followed by recovery of the original configuration. Conclusion: Orthodontic mini-screws had a higher failure rate when placed to invade the dental roots. However, minimally damaged dental roots do not adversely affect the healing process. (Angle Orthod. 2009:79; )

Should the quality of glycemic control guide dental implant therapy in patients with diabetes? Focus on implant survival

2021 ◽  
Vol 17 ◽  
Author(s):  
Dalia Nourah ◽  
Salwa Aldahlawi ◽  
Sebastiano Andreana
Keyword(s):  
Risk Factors ◽  
Glycemic Control ◽  
Dental Implant ◽  
Failure Rate ◽  
Implant Failure ◽  
Diabetic Patients ◽  
Marginal Bone Loss ◽  
Good Glycemic Control ◽  
Implant Therapy

Introduction: Optimal glycemic control is crucial to dental implant long-term functional and esthetic success. Despite HbA1c levels of 7% or lower used as an indicator for good glycemic control, however, this level may not be attainable for all diabetic patients. Most dentists do not consider patients with poor glycemic control candidates for implant therapy due to higher implant failure, infection or other complications. Aim: This review challenges the concept of one size fits all and aims to critically appraise the evidence for the success or failure rate of dental implants and peri-implant health outcomes in patients with less-than-optimal glycemic control. Discussion: Evidence suggests that estimating glycemic control from HbA1c measurement alone is misleading. Moreover, elevated preoperative HbA1c was not associated with increased mortality and morbidity after major surgical procedures. Literature for the survival or success of implants in diabetic patients is inconsistent due to a lack of standardized reporting of clinical data collection and outcomes. While a number of studies report that implant treatment in patients with well-controlled diabetes has a similar success rate to healthy individuals, other studies suggest that the quality of glycemic control in diabetic patients does not make a difference in the implant failure rate or marginal bone loss. This discrepancy could indicate that risk factors other than hyperglycemia may contribute to the survival of implants in diabetic patients. Conclusion: In the era of personalized medicine, the clinician should utilize individualized information and analyze all risk factors to provide the patient with evidence-based treatment options.

scholarly journals Sandblasting reduces dental implant failure rate but not marginal bone level loss: A systematic review and meta-analysis

PLoS ONE ◽  
2019 ◽  
Vol 14 (5) ◽  
pp. e0216428 ◽  
Author(s):  
László Márk Czumbel ◽  
Beáta Kerémi ◽  
Noémi Gede ◽  
Alexandra Mikó ◽  
Barbara Tóth ◽  
...  
Keyword(s):  
Systematic Review ◽  
Dental Implant ◽  
Failure Rate ◽  
Meta Analysis ◽  
Implant Failure ◽  
Bone Level ◽  
Marginal Bone Level

Dynamic changes of smooth muscle and endothelial markers in the early healing process of dacron vascular grafts in the dog, using RT-PCR

2011 ◽  
Vol 9 (02) ◽  
pp. 107-110 ◽  
Author(s):  
Atsushi Ishida ◽  
Moses Wu ◽  
Qun Shi ◽  
Yuji Fujita ◽  
Lester Sauvage ◽  
...  
Keyword(s):  
Smooth Muscle ◽  
Healing Process ◽  
Vascular Grafts ◽  
Rt Pcr ◽  
Dynamic Changes ◽  
Endothelial Markers ◽  
Early Healing

Safety of Ceramic Components

2006 ◽  
Vol 309-311 ◽  
pp. 1321-1324 ◽  
Author(s):  
Patricie Merkert ◽  
Christoph Krause ◽  
Meinhard Kuntz ◽  
Martin Dietrich
Keyword(s):  
Failure Rate ◽  
Implant Failure ◽  
Limited Mobility ◽  
The Past ◽  
Surgeon Training ◽  
Increased Risk ◽  
Ceramic Components ◽  
Total Failure ◽  
Implant System ◽  
Ceramic Implant

A statistical analysis of ceramic implant failure is presented. It is shown that the majority of failures occure within the first 12 months after implantation. From this characteristic distribution the prediction of the total failure rate is possible even for the latest years of production. There have been considerable improvements of the reliability in the past 5 years. Furthermore, there is evidence that the failure rate strongly depends on ball head diameter. For the largest ceramic ball head of 36mm diameter up to now no failure has been reported. From these results it is concluded that ceramic implant failure is in general released by individual circumstances. In particular, the probability of failure may be strongly increased in the case of limited mobility and an increased risk of impingement. In the case of a well developed specific surgeon training and right choice of the ceramic implant system the ceramic components provide an extremely reliable and safe solution for the patient.

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