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Dive into the research topics where Johnny I. Efanov is active.

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Featured researches published by Johnny I. Efanov.


Annales De Chirurgie Plastique Esthetique | 2017

Breast-implant texturing associated with delamination of capsular layers: A histological analysis of the double capsule phenomenon ☆

Johnny I. Efanov; J.P. Giot; J. Fernandez; Michel Alain Danino

BACKGROUND Macro-texturing of breast implants was developed with the double goal of improving implant stabilization within the breast cavity and decreasing the rate of capsular contractures. However, recent evidence suggests that double capsular formation, a potentially worrisome phenomenon associated with late seromas and biofilms, occurs with preponderance in macro-textured implants. Our objective was to analyze histologically different regions of double capsules to determine if they are more prone to mechanical movements. METHODS A prospective analysis including patients undergoing second-stage expander to definitive breast-implant reconstruction post-mastectomy was conducted after intraoperative identification of the double capsule phenomenon. Two samples were collected from each capsules around the implant, located centrally and laterally. The specimens were sent for histological analysis by the institutions pathologist. RESULTS In total, 10 patients were identified intraoperatively with partial double capsule phenomenon. Among samples retrieved from the lateral aspect of the breast implant, all were associated with delamination and fractures in the collagen matrix of the double capsules. This phenomenon was not observed in any sample from the dome of the breast. CONCLUSIONS Breast-implant macro-texturing plays an important role on delamination of capsules on lateral portions of the breast, which may have an etiologic role in double capsule formation. Manufacturing implants with macro-texturing on one side and smooth surface on the other could diminish mechanical shear forces responsible for these findings.


Microsurgery | 2017

Microvascular replantation of head and neck amputated parts: A systematic review

Johnny I. Efanov; Ixchel J. Montoya; Ke N. Huang; Charles Guertin; Patrick G. Harris; Joseph Bou-Merhi; Alain M. Danino

As opposed to upper and lower extremity amputations representing a considerable volume of admissions, the prowess of microsurgeons is seldom solicited in complex cases of head and neck replantation. Our aim was to determine the rate of successful replantation of craniofacial parts in a systematic review of the literature.


Plast Surg (Oakv) | 2018

The Canadian Plastic Surgery Workforce Analysis: Forecasting Future Need

Alexander Morzycki; Helene Retrouvey; Becher Alhalabi; Johnny I. Efanov; Sarah Alyouha; Jamil Ahmad; David T. Tang

Background: Projecting the demand for plastic surgeons has become increasingly important in a climate of scarce public resource within a single payer health-care system. The goal of this study is to provide a comprehensive workforce update and describe the perceptions of the workforce among Canadian Plastic Surgery residents and surgeons. Methods: Two questionnaires were developed by a national task force under the Canadian Plastic Surgery Research Collaborative. The surveys were distributed to residents and practicing surgeons, respectively. Results: Two-hundred fifteen (49%) surgeons responded, with a mean age of 51.4 years (standard deviation [SD] = 11.5); 78% were male. Thirty-three percent had been in practice for 25 years or longer. More than half of respondents were practicing in a large urban center. Fifty-nine percent believed their group was going to hire in the next 2 to 3 years; however, only 36% believed their health authority/provincial government had the necessary resources. The mean desired age of retirement was 67 years (SD = 6.4). We predict the surgeons-to-population ratio to be 1.55:100 000 and the graduate-to-retiree ratio to be 2.16:1 within the next 5 to 10 years. Seventy-seven (49%) residents responded. Most were “very satisfied” with their training (61%) and operative experience (90%). Eighty-nine percent of respondents planned to pursue addqitional training after residency, with 70% stating that the current job market was contributing to their decision. Most residents responded that they were concerned with the current job market. Conclusions: The results of this study predict an adequate number of plastic surgeons will be trained within the next 10 years to suit the population’s requirements; however, there is concern that newly trained surgeons will not have access to the necessary resources to meet growing demands. Furthermore, there is an evident shortage of those practicing in rural areas. Many trainees worry about the availability of jobs, despite evidence of active recruitment. The workforce may benefit from structured career mentorship in residency and improved transparency in hiring practices, particularly to attract young surgeons to smaller communities. It may also benefit from a coordinated national approach to recruitment and succession planning.


Microsurgery | 2018

Duration and cessation characteristics of heparinization after finger replantation: A retrospective analysis of outcomes

Johnny I. Efanov; Julia Khriguian; Sophie Cassier; Elie Boghossian; Patrick G. Harris; Joseph Bou-Merhi; Michel Alain Danino

To prevent postoperative thrombosis, indications for anticoagulation in finger replantation have been described, but no consensus has yet been found for cessation protocols. The aim of this study is to investigate cessation methods of intravenous anticoagulation after finger replantation.


Journal of Hand Therapy | 2018

The Michigan Hand Questionnaire and Brief Michigan Hand Questionnaire were successfully translated to Canadian French

Sorin Alexandru Busuioc; Mike Karim; Johnny I. Efanov; Louise Demers; Ali Izadpanah; Patrick G. Harris; Josée Arsenault; Tokiko Hamasaki; Daniel Bourbonnais

HIGHLIGHTSThe Michigan Hand Questionnaire (MHQ) and brief version of MHQ (bMHQ) were adapted into Canadian French (MHQ‐CF and bMHQ‐CF).The MHQ‐CF and bMHQ‐CF have similar reliability as versions in other languages.A few differences were found in their construct validity.They are reliable and valid for francophone patients with hand/wrist conditions.


Journal of Plastic Reconstructive and Aesthetic Surgery | 2016

Impact of the number of veins repaired in short-term digital replantation survival rate

Johnny I. Efanov; D. Rizis; Genevieve Landes; Joseph Bou-Merhi; Patrick G. Harris; Michel Alain Danino


Journal of Surgical Education | 2017

Barriers and Attitudes to Research Among Residents in Plastic and Reconstructive Surgery: A National Multicenter Cross-Sectional Study

Mona T. Al-Taha; Sarah Al Youha; Becher Alhalabi; Jill P. Stone; Helene Retrouvey; Osama A. Samargandi; Johnny I. Efanov; Michael Stein; Alexander Morzycki; Haley F. M. Augustine; Emilie Bougie; Diana Song; Hollie Power; Julian Diaz-Abele; Caitlin Symonette; Marie Noland; Chris Coroneos; Sophocles H. Voineskos; Joshua Vorstenbosch; Toni Zhong; Michael Bezuhly; Jason Williams


Plastic and Reconstructive Surgery | 2017

Capsular biofilm formation at the interface of textured expanders and human acellular dermal matrix: A comparative scanning electron microscopy study

Michel Alain Danino; Johnny I. Efanov; Georges Dimitropoulos; Maxim Moreau; Charles Maalouf; Monica Nelea; Ali Izadpanah; Jean-Philippe Giot


Plastic and Reconstructive Surgery | 2017

Analysis of Craniofacial Remodeling in the Aging Midface Using Reconstructed Three-Dimensional Models in Paired Individuals

Mihiran Karunanayake; Frederick To; Johnny I. Efanov; Gaby Doumit


The Journal of Health Design | 2018

The Partnership Co-Design Lab: Co-constructing a Patient Advisor Programme to increase adherence to rehabilitation after upper extremity replantation

Marie-Pascale Pomey; Johnny I. Efanov; Josée Arseneault; Audrey-Maude Mercier; Valérie Lahaie; Olivier Fortin; Marc Haineault; Alain M. Danino

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Ali Izadpanah

Université de Montréal

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Louise Demers

Université de Montréal

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