scholarly journals Intraoperative Fracture of a Pyrocarbon PIP Total Joint—A Case Report

Hand ◽  
2007 ◽  
Vol 2 (3) ◽  
pp. 90-93 ◽  
Author(s):  
Martin Skie ◽  
Nicholas Gove ◽  
Despina Ciocanel
Keyword(s):  
Critical Evaluation ◽  
Pyrolytic Carbon ◽  
Proximal Interphalangeal Joint ◽  
The Body ◽  
Posttraumatic Arthritis ◽  
Traumatic Injuries ◽  
Prosthetic Implants ◽  
Relieve Pain ◽  
Flexion Extension ◽  
Pip Joint

Pain or dysfunction of the finger joints due to arthritis or traumatic injuries that fail medical management may necessitate arthroplasty or joint replacement. The goals of the finger joint implant arthroplasty are to relieve pain, to correct deformity, and to improve the function and appearance of the hand. Several prosthetic implants have been used for the replacement of the proximal interphalangeal (PIP) joint. Pyrocarbon materials, a form of pyrolytic carbon, a ceramic-like material, have proven to be strong, durable, resistant to wear and nonreactive in the body. The Ascension PIP pyrocarbon total joint is a bicondylar, anatomically shaped, articulating implant that allows joint flexion–extension, while providing some restriction of adduction–abduction motion. A review of the literature of pyrocarbon PIP prosthesis reveals little clinical data. The case of a 33-year-old man with posttraumatic arthritis proximal interphalangeal joint right long finger is reported. The case was treated surgically using the Ascension PIP total joint. During the insertion of the implant, the proximal component fractured at the sub-articular collar. The component was removed, and a new implant was inserted without complication. Critical evaluation revealed that there was an inadequate resection of the volar lip resulting in a stress riser on the implant during impaction. Careful attention to this technical point will hopefully minimize the occurrence of this complication as the availability and use of these implants increases.

Pyrolytic carbon arthroplasty for the proximal interphalangeal joint: results after minimum 3 years of follow-up

2012 ◽  
Vol 37 (6) ◽  
pp. 501-505 ◽  
Author(s):  
S. A. Mashhadi ◽  
L. Chandrasekharan ◽  
M. A. Pickford
Keyword(s):  
Range Of Motion ◽  
Statistical Significance ◽  
Objective Assessment ◽  
Pyrolytic Carbon ◽  
Proximal Interphalangeal Joint ◽  
Consecutive Series ◽  
Modest Improvement ◽  
Replacement Arthroplasty ◽  
Pip Joint

A retrospective study was undertaken to review the outcomes of a consecutive series of patients treated using pyrocarbon surface replacement arthroplasty by the same surgeon. We analyzed the results of this procedure in 24 proximal interphalangeal (PIP) joints in 19 hands of 16 patients. The minimum follow-up was 3 years. The study showed that pyrocarbon PIP joint replacements provided excellent pain relief and high patient satisfaction. More than two-thirds of patients subjectively rated postoperative range of motion and functional outcomes as better than preoperatively. Objective assessment showed a modest improvement in the active range of motion, which did not achieve statistical significance, although we did observe a statistically significant increase in passive range of motion. The results are encouraging for those surgeons who seek an alternative to silicone implant PIP joint arthroplasty in high-demand patients.

Investigation of Squeaking in Pyrolytic Carbon Proximal Interphalangeal Joint Implants

2014 ◽  
Vol 8 (1) ◽  
Author(s):  
Caleb Davis ◽  
Andrew R. Thoreson ◽  
Lawrence Berglund ◽  
Steven L. Moran ◽  
Kai-Nan An ◽  
...  
Keyword(s):  
Fetal Bovine Serum ◽  
Pyrolytic Carbon ◽  
Proximal Interphalangeal Joint ◽  
Interphalangeal Joint ◽  
Implant Loosening ◽  
Test Device ◽  
Implant Size ◽  
Pip Joint ◽  
Joint Implants ◽  
Fetal Bovine

One commonly reported complication of pyrolytic carbon arthroplasty at the proximal interphalangeal (PIP) joint is an annoying, painless, squeaking postoperatively. This squeak has been anecdotally associated with implant loosening or impending dislocation. The purpose of this study was to investigate the etiology of this squeaking. Proximal and distal components of the pyrolytic carbon PIP implant were inserted into foam bones and mounted onto an oscillating test device. We evaluated the effect of 96 combinations of load, velocity, contact angle, implant size, lubrication, and displacement amplitude over a total of 300 cycles for each condition. Sound analysis was performed on squeaking conditions. Fourteen conditions resulted in squeaking, all with a sound pattern similar to that noted clinically. Unlubricated, “dry” joints did not squeak. Squeaking most commonly occurred with fetal bovine serum lubrication, at higher loads, and at 0 deg hyperextension. Hyaluronic acid viscosupplementation stopped the squeaking in all cases.

Pyrolytic Carbon Arthroplasty for Posttraumatic Arthritis of the Proximal Interphalangeal Joint

2006 ◽  
Vol 31 (9) ◽  
pp. 1468-1474 ◽  
Author(s):  
Ryan M. Nunley ◽  
Martin I. Boyer ◽  
Charles A. Goldfarb
Keyword(s):  
Pyrolytic Carbon ◽  
Proximal Interphalangeal Joint ◽  
Interphalangeal Joint ◽  
Posttraumatic Arthritis

Results of Vascularized Joint Transfers from the Foot

1997 ◽  
Vol 22 (4) ◽  
pp. 492-498 ◽  
Author(s):  
G. DAUTEL ◽  
M. MERLE
Keyword(s):  
Joint Space ◽  
Proximal Interphalangeal Joint ◽  
Interphalangeal Joint ◽  
Indications For Surgery ◽  
Pip Joint ◽  
Prosthetic Implant ◽  
Metatarsophalangeal Joints ◽  
Second Toe ◽  
The Average Range

We report our results in ten cases of vascularized joint transfer to reconstruct the proximal interphalangeal joint (five cases) or metacarpophalangeal joints (five cases). Donor sites were the proximal interphalangeal or the metatarsophalangeal joints of the second toe. Indications for surgery were the need to reconstruct both the growth plate and joint space in children or the impossibility of a conventional prosthetic implant. The average range of motion was 44° for the PIP joint and 53° for the MP joint at a mean follow-up of 22.7 months.

Proximal interphalangeal joint silicone arthroplasty for posttraumatic arthritis

2007 ◽  
Vol 12 (5) ◽  
pp. 493-496 ◽  
Author(s):  
Daisuke Yamauchi ◽  
Kazuo Ikeda ◽  
Katsuro Tomita ◽  
Shinjiro Amaya
Keyword(s):  
Proximal Interphalangeal Joint ◽  
Interphalangeal Joint ◽  
Posttraumatic Arthritis

Terapie z udziałem zwierząt w leczeniu i rehabilitacji chorych i niepełnosprawnych

2018 ◽  
Vol 21 (1A) ◽  
Author(s):  
Wojciech Giermaziak ◽  
Iwona Fryzowska-Chrobot
Keyword(s):  
Immune System ◽  
Noradrenaline Release ◽  
Well Being ◽  
The Body ◽  
Animal Assisted Therapy ◽  
Relieve Pain ◽  
The World ◽  
Stress Levels ◽  
Endogenous Substances

Animal-assisted therapy (AAT) – supports rehabilitation as well as therapy and care of patients by their contact with an animal. Fondling and hugging animals lead to endocrine system’s stimulation and producing endogenous substances, that relieve pain and influence patient’s well-being; it reduces stress levels because the cortisol and noradrenaline release – the hormones produced by the body in stress – is being reduced and the patient’s immune system is being stimulated. It has been proven that the company of animals hasten the recovery after a disease, calms stressed, hyperactive people and at the same time stimulates the activity of a person suffering from depression or apathy. In Poland the most popular is dog-assisted therapy, hippotherapy (horse-assisted therapy) and felinotherapy (cat-assisted therapy). In the world onotherapy (donkey or mule-assisted therapy) and dolphin therapy are known. In the article animal assisted therapies were discussed, showing the role that they play in treatment and rehabilitation of sick and disabled.

Rule of law and preventing fraud in Nigeria’s capital market

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Uchechukwu Nwoke ◽  
Ibenaku Harford Onoh
Keyword(s):  
Rule Of Law ◽  
Capital Markets ◽  
Capital Market ◽  
Critical Evaluation ◽  
Subject Area ◽  
The Body ◽  
Content Type ◽  
The Rule Of Law ◽  
Body Of Knowledge ◽  
Fresh Insight

Purpose The purpose of this paper is to critically analyse the correlation between the rule of law and the efficient functioning of capital markets. It attempts to examine the Nigerian capital market and how the rule of law can be used to prevent fraud and promote the proper functioning of the market. Design/methodology/approach The paper adopts the doctrinal approach through a critical evaluation of concepts. Using existing literature in the subject area, it evaluates the inter-connectedness between law and the capital market and how the rule of law is an important instrument in capital market development. Findings The paper finds that there have been numerous infractions of the rule of law by capital market actors, leading to stultification in the growth and development of this sector of the Nigerian economy. Originality/value The paper offers a fresh insight into the correlation between the rule of law and capital markets. By critically assessing the inter-connectivity between the two concepts, it extends the body of knowledge in this area by showing how the operations of the Nigerian capital market could be improved through the proper application of the rule of law.

scholarly journals Damage Tolerance in Biomedical Implants: Cardiac Valves and Endovascular Stents

2000 ◽  
Author(s):  
R. O. Ritchie
Keyword(s):  
Life Prediction ◽  
Heart Valves ◽  
Damage Tolerance ◽  
Heat Rate ◽  
Pyrolytic Carbon ◽  
Endovascular Stents ◽  
Prosthetic Implants ◽  
Useful Life ◽  
Valve Prostheses ◽  
Damage Tolerant

Abstract The human heat rate is roughly 40 million beats per year. To prosthetic implants such as mechanical heart valves and endovascular stents, this means that they must endure almost 109 fatigue cycles during the patient’s lifetime. To prevent premature mechanical failures of such devices, which inevitably lead to patient fatalities, considerations of damage-tolerant design and life-prediction methodologies represent a preferred approach. In this presentation, a damage-tolerant approach to life prediction and “quality control” for both metallic and ceramic heart valve prostheses is presented, based on the notion that the useful life of the device is governed by the time for incipient defects in the material to propagate, by stress corrosion or more critically fatigue, to failure. Based on these analyses, the relative benefits of metallic (Co-Cr, Ti-6Al-4V) vs. ceramic (pyrolytic carbon) valves are discussed. Finally, analogous considerations are presented for endovascular stents, particularly those processed by laser cutting of the superelastic Ni-Ti alloy Nitinol. Again, the relative benefits of Nitinol vs. more traditional metallic implant materials (stainless steel, Co-Cr, titanium, titanium alloys) are discussed.

scholarly journals Buying Time: Long-Term Results of Wrist Denervation and Time to Repeat Surgery

Hand ◽  
2018 ◽  
Vol 14 (5) ◽  
pp. 602-608 ◽  
Author(s):  
Maureen A. O’Shaughnessy ◽  
Eric R. Wagner ◽  
Richard A. Berger ◽  
Sanjeev Kakar
Keyword(s):  
Symptom Relief ◽  
Long Term Results ◽  
Time Interval ◽  
Posttraumatic Arthritis ◽  
Revision Operation ◽  
Repeat Surgery ◽  
Age At Surgery ◽  
Flexion Extension ◽  
Wrist Denervation

Background: This study reviews long-term outcomes of partial wrist denervation focusing on need for and time to revision procedure. Methods: A retrospective study was conducted of all patients undergoing partial wrist denervation between 1994 and 2014. At average latest follow-up of 6.75 years (range, 1-21 years), clinical and radiographic data and need for revision surgery were recorded. Results: There were 100 wrists in 89 patients (61 male, 28 female) with average age at surgery of 54 years (range, 26-80). Principal diagnoses were arthritis (58%), inflammatory (19%), and posttraumatic arthritis (7%). Average flexion-extension arc was 83% and grip strength 75% of unaffected extremity. Average Mayo Wrist Scores improved from 48 preoperatively to 77 postoperatively. Sixty-nine percent of patients did not undergo other procedures during the time interval studied. Thirty-one percent underwent revision at an average of 26 months following denervation (range, 2-165). Conclusions: Partial wrist denervation is a motion-preserving procedure for patients with refractory wrist pain with 69% in this series requiring no further procedures. The remaining 31% experienced average symptom relief for 2 years prior to ultimately undergoing revision operation.

Sign in / Sign up

Export Citation Format

Share Document