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https://www.readbyqxmd.com/read/28746275/finesse-in-nasal-tip-refinement
#1
David A Sieber, Rod J Rohrich
Nasal tip refinement is one of the most difficult aspects of rhinoplasty surgery. In this article, the senior author (R.J.R.) presents his technique for nasal tip analysis and identifies the factors that contribute to nasal tip shape. Various techniques for nasal tip modification using both sutures and soft cartilage grafts are described to help produce optimal results.
August 2017: Plastic and Reconstructive Surgery
https://www.readbyqxmd.com/read/28745972/a-20-year-follow-up-after-first-generation-autologous-chondrocyte-implantation
#2
Takahiro Ogura, Brian A Mosier, Tim Bryant, Tom Minas
BACKGROUND: Treating articular cartilage defects is a demanding problem. Although several studies have reported durable and improved clinical outcomes after autologous chondrocyte implantation (ACI) over a long-term period, there is no report with over 20 years' follow-up. PURPOSE: To evaluate clinical outcomes after first-generation ACI for the treatment of knees with disabling, large single and multiple cartilage defects for which patients wished to avoid prosthetic arthroplasty, with a minimum of 20 years' follow-up...
July 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28741445/results-of-endoscopic-cartilage-tympanoplasty-procedure-with-limited-tympanomeatal-flap-incision
#3
Isa Kaya, Goksel Turhal, Arin Ozturk, Sercan Gode, Cem Bilgen, Tayfun Kirazli
OBJECTIVE: The aim of this study was to evaluate the outcomes of this minimally invasive tympanomeatal incision technique performed during endoscopic transcanal cartilage tympanoplasty. STUDY DESIGN: Prospective clinical study. METHODS: Eighty-seven patients (87 ears) who had TM perforation with noncomplicated COM were included. All of the patients were operated with the endoscopic transcanal cartilage tympanoplasty technique. All of the data were prospectively collected...
July 25, 2017: Acta Oto-laryngologica
https://www.readbyqxmd.com/read/28737981/contact-forces-acting-on-large-femoral-osteochondral-allografts-during-forced-knee-extension
#4
Peter Z Du, Keith L Markolf, Christopher J Lama, David R McAllister, Kristofer J Jones
BACKGROUND: A single cylindrical graft plug is commonly used for large focal femoral defects during osteochondral allograft (OCA) transplantation. Excessive contact force (CF) on a proud plug could compromise initial healing. CFs during forced knee extension are of particular interest because this maneuver is used by therapists to restore early postoperative range of motion. HYPOTHESIS: A proud OCA plug will significantly increase the CF and significantly decrease the knee extension angle (KEA)...
July 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28737949/effects-of-autogenous-bone-marrow-aspirate-concentrate-on-radiographic-integration-of-femoral-condylar-osteochondral-allografts
#5
Lasun O Oladeji, James P Stannard, Cristi R Cook, Mauricio Kfuri, Brett D Crist, Matthew J Smith, James L Cook
BACKGROUND: Transplantation of fresh osteochondral allografts (OCAs) is an attractive treatment option for symptomatic articular cartilage lesions in young, healthy patients. Because the lack of OCA bone integration can be a cause of treatment failure, methods for speeding and enhancing OCA bone integration to mitigate this potential complication are highly desirable. PURPOSE: To determine if autogenous bone marrow aspirate concentrate (BMC) treatment of large femoral condylar OCAs would be associated with superior radiographic OCA bone integration compared with nontreated allografts during the critical first 6 months after surgery...
July 1, 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28737555/l-shaped-septal-extension-spreader-graft-for-improvement-of-tip-symmetry-in-unilateral-cleft-lip-nose-deformities
#6
Serkan Sertel, Ioana-Irina Venara-Vulpe, François Gorostidi, Anthony de Buys Roessingh, Philippe Pasche
INTRODUCTION: The unilateral cleft lip nose is characterized by numerous complex and interdependent deformities. Secondary rhinoplasty techniques aim to correct cleft lip nose deformities by using multiple maneuvers combining septum and nasal spine medialization and alar cartilage, as well as soft tissue mobilization and repositioning. Moreover, cartilage grafting is frequently used to restore adequate tip projection and nasal symmetry. We present a technique of cartilage grafting commonly used in noncleft rhinoplasties that we modified for cases of moderate cleft lip nose deformities...
July 22, 2017: Annals of Plastic Surgery
https://www.readbyqxmd.com/read/28727652/surgical-emphysema-following-canalplasty-for-aural-exostoses
#7
Michael C Baxter, Matthew Keller, Anil Shah, Sean Wise
OBJECTIVE: To describe the presentation and management of surgical emphysema involving the temporomandibular joint and deep neck following exostoses removal. PATIENT: A 60-year-old male surfer presented with hearing loss and recurrent infections in the right ear. An examination revealed obstructing bony exostoses in the right external auditory canal. He underwent right canalplasty using a postauricular approach. At 5 weeks after surgery, he presented with right otalgia, swelling of the right face and neck, and complaints of a squeaking noise in the right ear with mandibular excursions...
July 19, 2017: Otology & Neurotology
https://www.readbyqxmd.com/read/28726587/repair-of-tympanic-membrane-perforations-with-customized-bioprinted-ear-grafts-using-chinchilla-models
#8
Che-Ying Kuo, Emmanuel Wilson, Andrew Fuson, Nidhi Gandhi, Reza Monfaredi, Audrey Jenkins, Maria Romero, Marco Santoro, John P Fisher, Kevin Cleary, Brian Reilly
The goal of this work is to develop an innovative method that combines bioprinting and endoscopic imaging to repair tympanic membrane perforations (TMPs). TMPs are a serious health issue because they can lead to both conductive hearing loss and repeated otitis media. TMPs occur in 3 to 5% of cases after ear tube placement as well as in cases of acute otitis media (the second most common infection in pediatrics), chronic otitis media with or without cholesteatoma, or as a result of barotrauma to the ear. About 55,000 tympanoplasties, the surgery performed to reconstruct TMPs, are performed every year and the commonly used cartilage grafting technique has a success rate between 43% to 100%...
July 20, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28721683/mesenchymal-stem-progenitor-cells-derived-from-articular-cartilage-synovial-membrane-and-synovial-fluid-for-cartilage-regeneration-current-status-and-future-perspectives
#9
REVIEW
Yi-Zhou Huang, Hui-Qi Xie, Antonietta Silini, Ornella Parolini, Yi Zhang, Li Deng, Yong-Can Huang
Large articular cartilage defects remain an immense challenge in the field of regenerative medicine because of their poor intrinsic repair capacity. Currently, the available medical interventions can relieve clinical symptoms to some extent, but fail to repair the cartilaginous injuries with authentic hyaline cartilage. There has been a surge of interest in developing cell-based therapies, focused particularly on the use of mesenchymal stem/progenitor cells with or without scaffolds. Mesenchymal stem/progenitor cells are promising graft cells for tissue regeneration, but the most suitable source of cells for cartilage repair remains controversial...
July 18, 2017: Stem Cell Reviews
https://www.readbyqxmd.com/read/28720091/clinical-and-imaging-outcome-of-osteochondral-lesions-of-the-talus-treated-using-autologous-matrix-induced-chondrogenesis-technique-with-a-biomimetic-scaffold
#10
Domenico Albano, Nicolò Martinelli, Alberto Bianchi, Carmelo Messina, Francesco Malerba, Luca Maria Sconfienza
BACKGROUND: The purpose of our study was to assess the clinical and imaging outcome of autologous matrix-induced chondrogenesis (AMIC) technique consisting of microfractures followed by the filling of osteochondral lesions of the talus (OLTs) with a cell-free biphasic collagen-hydroxyapatite osteochondral scaffold (MaioRegen). METHODS: Sixteen patients (eight males, age: 42.6 ± 18.4, range 14-74) with OLT repaired using AMIC technique, with implantation of MaioRegen, were clinically evaluated through the American Orthopedic Foot and Ankle Society Score (AOFAS) and a 10-point Visual Analogue Scale (VAS) pain score after a mean follow-up of 30 ± 16...
July 18, 2017: BMC Musculoskeletal Disorders
https://www.readbyqxmd.com/read/28714793/equivalent-knee-injury-and-osteoarthritis-outcome-scores-12-and-24-months-after-anterior-cruciate-ligament-reconstruction-results-from-the-swedish-national-knee-ligament-register
#11
Kristian Samuelsson, Robert A Magnussen, Eduard Alentorn-Geli, Ferid Krupic, Kurt P Spindler, Christer Johansson, Magnus Forssblad, Jón Karlsson
BACKGROUND: It is not clear whether Knee injury and Osteoarthritis Outcome Score (KOOS) results will be different 1 or 2 years after anterior cruciate ligament (ACL) reconstruction. PURPOSE: To investigate within individual patients enrolled in the Swedish National Knee Ligament Register whether there is equivalence between KOOS at 1 and 2 years after primary ACL reconstruction. STUDY DESIGN: Cohort study; Level of evidence, 2. METHODS: This cohort study was based on data from the Swedish National Knee Ligament Register during the period January 1, 2005, through December 31, 2013...
July 2017: American Journal of Sports Medicine
https://www.readbyqxmd.com/read/28713920/low%C3%A2-dose-halofuginone-inhibits-the-synthesis-of-type-i-collagen-without-influencing-type-ii-collagen-in-the-extracellular-matrix-of-chondrocytes
#12
Zeng Li, Hao Fei, Zhen Wang, Tianyi Zhu
Full‑thickness and large area defects of articular cartilage are unable to completely repair themselves and require surgical intervention, including microfracture, autologous or allogeneic osteochondral grafts, and autologous chondrocyte implantation. A large proportion of regenerative cartilage exists as fibrocartilage, which is unable to withstand impacts in the same way as native hyaline cartilage, owing to excess synthesis of type I collagen in the matrix. The present study demonstrated that low‑dose halofuginone (HF), a plant alkaloid isolated from Dichroa febrifuga, may inhibit the synthesis of type I collagen without influencing type II collagen in the extracellular matrix of chondrocytes...
September 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28713702/evidence-based-efficacy-of-autologous-grated-cartilage-in-primary-and-secondary-rhinoplasty
#13
Ali Manafi, Ali Kaviani, Zahra Sadat Hamedi, Afsaneh Rajabiani, Navid Manafi
BACKGROUND: There are numerous methods to mold and shape cartilage grafts for use in rhinoplasty. Each technique has advantages and disadvantages. We are going to introduce a new method for cartilage shaping with long lasting effects confirmed by follow up examination and pathologic evaluation. METHODS: Grated cartilage was used in 483 patients. For 89 cases, it was wrapped in fascia and in 394 patients, used as a filler per se or in contiguity with solid structural grafts...
May 2017: World Journal of Plastic Surgery
https://www.readbyqxmd.com/read/28706807/labral-gracilis-tendon-allograft-reconstruction-and-cartilage-regeneration-scaffold-for-an-uncontained-acetabular-cartilage-defect-of-the-hip
#14
Laurel E MacInnis, Ahmed Al Hussain, Catherine Coady, Ivan H Wong
Hip cartilage injuries are very common, with rates as high as 50% having been reported in some series; abnormal femoral acetabular contact can result in a full-thickness cartilage defect or labral lesion. The prevalence of labral lesions can be as high as 55%. This Technical Note describes an arthroscopic technique to reconstruct an uncontained, full-thickness, focal cartilage defect of the acetabulum, with reconstruction of the missing labrum using a gracilis allograft and use of a biological liquid scaffold for cartilage reconstruction...
June 2017: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28698817/the-fabrication-of-biomimetic-biphasic-can-pac-hydrogel-with-a-seamless-interfacial-layer-applied-in-osteochondral-defect-repair
#15
Jinfeng Liao, Taoran Tian, Sirong Shi, Xueping Xie, Quanquan Ma, Guo Li, Yunfeng Lin
Cartilage tissue engineering based on biomimetic scaffolds has become a rapidly developing strategy for repairing cartilage defects. In this study, a biphasic CAN-PAC hydrogel for osteochondral defect (OCD) regeneration was fabricated based on the density difference between the two layers via a thermally reactive, rapid cross-linking method. The upper hydrogel was cross-linked by CSMA and NIPAm, and the lower hydrogel was composed of PECDA, AAm and PEGDA. The interface between the two layers was first grafted by the physical cross-linking of calcium gluconate and alginate, followed by the chemical cross-linking of the carbon-carbon double bonds in the other components...
2017: Bone Research
https://www.readbyqxmd.com/read/28692513/viability-and-biomechanics-of-diced-cartilage-blended-with-platelet-rich-plasma-and-wrapped-with-poly-lactic-co-glycolic-acid-membrane
#16
Jun-Lin Liao, Jia Chen, Bin He, Yong Chen, Jia-Qun Xu, Hong-Ju Xie, Feng Hu, Ai-Jun Wang, ChengQun Luo, Qing-Feng Li, Jian-Da Zhou
OBJECTIVES: The objective of this study was to investigate the viability and biomechanics of diced cartilage blended with platelet-rich plasma (PRP) and wrapped with poly (lactic-co-glycolic) acid (PLGA) membrane in a rabbit model. METHODS: A total of 10 New Zealand rabbits were used for the study. Cartilage grafts were harvested from 1 side ear. The grafts were divided into 3 groups for comparison: bare diced cartilage, diced cartilage wrapped with PLGA membrane, and diced cartilage blended with PRP and wrapped with PLGA membrane...
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28691469/nasal-reconstruction-our-experience
#17
A Baj, A Russillo, E Segna, M Romano, A Bolzoni, F J Silvestre, A B Giannì, G A Beltramini
The nose is a critically important aesthetic and functional portion of the face. We can explore nasal defects following trauma or tumor resections. Reconstructive techniques based on primary closure, skin graft, local flap, regional flap and microvascular free tissue transfer provides an algorithmic framework applicable to any reconstructive problem. From 2010 to 2016, 33 patients were treated with nasal reconstruction. Malignant tumor resection was the main cause of nasal defect. The most common tumor resected was BCC (basal cell carcinoma) followed by SCC (squamous cell carcinoma)...
April 2017: Journal of Biological Regulators and Homeostatic Agents
https://www.readbyqxmd.com/read/28684786/autologous-thyroid-cartilage-graft-implantation-in-medialization-laryngoplasty-a-modified-approach-for-treating-unilateral-vocal-fold-paralysis
#18
Ming-Shao Tsai, Ming-Yu Yang, Geng-He Chang, Yao-Te Tsai, Meng-Hung Lin, Cheng-Ming Hsu
Medialization laryngoplasty is the standard surgical treatment for unilateral vocal fold paralysis. This study presents a modified approach in which a thyroid cartilage graft is implanted in medialization laryngoplasty. 22 patients who underwent this approach were included in the study. The results revealed that glottal incompetence and vocal performance were markedly improved following surgery, and the follow-up period ranged from 6 to 74 months (mean, 21.4 months). Acoustic analysis revealed significant improvements in the maximum phonation time (from 3...
July 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28682003/impact-insertion-of-osteochondral-grafts-interference-fit-and-central-graft-reduction-affect-biomechanics-and-cartilage-damage
#19
Alvin W Su, Yunchan Chen, Dustin H Wailes, Van W Wong, Shengqiang Cai, Albert C Chen, William D Bugbee, Robert L Sah
An osteochondral graft (OCG) is an effective treatment for articular cartilage and osteochondral defects. Impact of an OCG during insertion into the osteochondral recipient site (OCR) can cause chondrocyte death and matrix damage. The aim of the present study was to analyze the effects of graft-host interference fit and a modified OCG geometry on OCG insertion biomechanics and cartilage damage. The effects of interference fit (radius of OCG - radius of OCR), loose (0.00mm), moderate (0.05mm), tight (0.10mm), and of a tight fit with OCG geometry modification (central region of decreased radius) were analyzed for OCG cylinders and OCR blocks from adult bovine knee joints with an instrumented drop tower apparatus...
July 6, 2017: Journal of Orthopaedic Research: Official Publication of the Orthopaedic Research Society
https://www.readbyqxmd.com/read/28675976/post-osteomyelitic-acquired-radial-club-hand-deformity-in-children-treated-by-centralization-of-ulna
#20
Dinesh Kumar Meena
INTRODUCTION: Radial club hand deformity acquired post haematogenous osteomyelitis of radius bone is a very rare disease. Resulting in functional and cosmetic deficit of upper limb which is similar to congenital cases. For a long-time various surgeons attempted to reconstruct the deformity by bone grafting, plating, Ilizarov, monorail external fixator, callus distraction and so on. Keeping in mind that creating single bone forearm we proposed centralization of ulna on wrist to correct the deformity...
May 2017: Journal of Orthopaedic Surgery
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