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https://www.readbyqxmd.com/read/28224069/allograft-anterior-cruciate-ligament-reconstruction-utilizing-internal-brace-augmentation
#1
Patrick A Smith, Jordan A Bley
Anterior cruciate ligament (ACL) tears are among the most common sports-related injuries. Although studies have reported reliable outcomes with allograft tissue, several studies have shown a higher failure rate in younger patients. Although ACL graft augmentation has been met with varying levels of success, internal bracing of an allograft represents a promising area in ACL reconstruction. The purpose of this article is to detail allograft preparation involving a collagen-coated, ultrahigh-molecular-weight polyethylene/polyester suture tape as an internal brace augmentation for ACL reconstruction using the all-inside ACL GraftLink Technique (Arthrex, Naples, FL)...
October 2016: Arthroscopy Techniques
https://www.readbyqxmd.com/read/28208056/oral-rehabilitation-of-a-patient-with-ectodermal-dysplasia-treated-with-fresh-frozen-bone-allografts-and-computer-guided-implant-placement-a-clinical-case-report
#2
Carlo Maiorana, Pier Paolo Poli, Carlo Poggio, Paola Barbieri, Mario Beretta
Ectodermal dysplasia (ED) is an inherited disorder characterized by abnormality of ectodermally derived structures. A recurrent oral finding is oligodontia, which in turn leads to a severely hypotrophic alveolar process with typical knife-edge morphology and adverse ridge contours. This unfavorable anatomy can seriously hamper proper implant placement. Fresh-frozen bone (FFB) allografts recently have been proposed to augment the residual bone volume for implant placement purposes; however, scientific evidence concerning the use of FFB to treat ED patients is absent...
January 20, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/28194290/latissimus-dorsi-tendon-transfer-with-graftjacket%C3%A2-augmentation-to-increase-tendon-length-for-an-irreparable-rotator-cuff-tear
#3
John G Skedros, Tanner R Henrie
Massive irreparable rotator cuff tears can be reconstructed with latissimus dorsi tendon transfers (LDTT). Although uncommon, the natural length of the latissimus dorsi tendon (LDT) could be insufficient for transfer even after adequate soft tissue releases. Descriptions of cases where grafts were needed to lengthen the LDT are therefore rare. We located only two reports of the use of an acellular dermal matrix to increase effective tendon length in tendon transfers about the shoulder: (1) GraftJacket patch for a pectoralis major tendon reconstruction and (2) ArthroFlex® patch for LDTT...
2017: Case Reports in Orthopedics
https://www.readbyqxmd.com/read/28185397/the-clinical-effectiveness-of-alveolar-ridge-preservation-in-the-maxillary-anterior-esthetic-zone-a-retrospective-study
#4
Albert Ming Hsien Lee, Choy Yoke Poon
PURPOSE: The primary aim was to investigate whether ridge preservation done at extraction will preserve at least 6 mm of alveolar ridge width in the anterior maxillary zone and obviate the need for secondary bone augmentation during implant insertion. METHODS: Sixty patients with single implants placed in the anterior maxillary zone were classified in two groups. In the test group, 40 patients underwent ridge preservation at the time of tooth extraction, while the remaining 20 patients in the control group did not...
February 10, 2017: Journal of Esthetic and Restorative Dentistry
https://www.readbyqxmd.com/read/28182827/chronic-achilles-tendon-rupture-treated-with-allograft-a-case-report
#5
Giuseppe Restuccia, Alessandro Lippi, Francesco Casella, Carmine Citarelli, Federico Sacchetti, Maurizio Benifei
In clinical practice, chronic Achilles tendon ruptures are uncommon. Usually, these lesions are discovered four to six weeks after injuries. More frequently, Achilles tendon ruptures are acute and treated with tendon sutures.1 Many surgical techniques are available to treat chronic lesions such as sutures or V-Y elongation with or without augments.2-3 Our case is about a chronic Achilles tendon rupture discovered two years after injury. Our patient came to our attention with a 6 cm tendon gap. We performed tendon repair with cadaver allograft...
February 7, 2017: Surgical Technology International
https://www.readbyqxmd.com/read/28149458/cortical-lamina-technique-a-therapeutic-approach-for-lateral-ridge-augmentation-using-guided-bone-regeneration
#6
Shree-Lakshmi Deepika-Penmetsa, Raison Thomas, Tarun-Kumar Baron, Rucha Shah, Dhoom-Singh Mehta
BACKGROUND: The present study aimed at evaluating the efficacy of a novel technique, the bone lamina technique, in horizontal ridge augmentation clinically & radiographically using a combination of allogenic cortical shell, particulate xenograft and resorbable collagen membrane. MATERIAL AND METHODS: Localized horizontal ridge defects, in ten patients (6 male, 4 female), with bucco-palatal ridge width less than 5 mm were included in this study. Localised ridge augmentation was performed using bone lamina technique with mineralised allogenic shell of 1 mm thickness trimmed to the appropriate size using stereo-lithographic models and fixed to the recipient site with stainless steel micro-screws of 1 mm diameter...
January 2017: Journal of Clinical and Experimental Dentistry
https://www.readbyqxmd.com/read/28114242/effect-of-ratio-of-residual-alveolar-bone-to-graft-material-in-contact-with-fixture-surface-on-marginal-bone-loss-of-implants-in-augmented-maxillary-sinuses-a-1-year-retrospective-study
#7
Chan-Ho Park, Dong-Won Lee, Jeong-Ho Yun, Ik-Sang Moon
PURPOSE: The purpose of this retrospective study was to evaluate the influences of height or area ratio of residual alveolar bone to graft material on marginal bone loss around implants in the augmented maxillary sinuses with delayed implant placement. MATERIALS AND METHODS: In this study, 42 patients with Astra implants in sinuses that had been augmented with alloplasts and allografts or xenografts (alveolar bone height ≤ 5 mm) were selected. Marginal bone level surrounding 1 implant per sinus was assessed by radiographic imaging at the time of final restoration delivery and 12 months after functional loading...
February 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28105590/case-report-on-managing-incomplete-bone-formation-after-bilateral-sinus-augmentation-using-a-palatal-approach-and-a-dilating-balloon-technique
#8
Tobias K Boehm
BACKGROUND: Patients with resorbed edentulous alveolar ridges in the posterior maxilla often require lateral window sinus augmentation procedures prior to implant placement. Lateral window sinus augmentation procedures can produce incomplete bone augmentation as consequence of surgical and healing complications producing unusual and complex sinus anatomy. Although incomplete bone formation after sinus augmentation has been described in a previous case reports, this is the first case report that describes grafting these compromised sites prior to implant placement...
December 2017: International Journal of Implant Dentistry
https://www.readbyqxmd.com/read/28098745/effect-of-freeze-dried-allograft-bone-with-human-basic-fibroblast-growth-factor-containing-a-collagen-binding-domain-from-clostridium-histolyticum-collagenase-on-bone-formation-after-lumbar-posterolateral-fusion-surgery-in-rats
#9
Gen Inoue, Kentaro Uchida, Osamu Matsushita, Hisako Fujimaki, Wataru Saito, Masayuki Miyagi, Hiroyuki Sekiguchi, Nozomu Nishi, Seiji Ohtori, Mizuki Yogoro, Masashi Takaso
STUDY DESIGN: An experimental study. OBJECTIVE: To evaluate the effectiveness of freeze-dried bone allograft (FDBA) with basic fibroblast growth factor (bFGF) fused with the polycystic kidney disease domain (PKD) and the collagen-biding domain (CBD) of Clostridium histolyticum collagenase, for the acceleration of lumbar posterolateral fusion in rats. SUMMARY OF BACKGROUND DATA: Reports indicate bFGF is an effective growth factor with osteogenic potential for promoting bone regeneration, although its efficiency decreases rapidly following its diffusion in body fluid from the host site...
January 16, 2017: Spine
https://www.readbyqxmd.com/read/28078635/corr-insights-%C3%A2-is-there-benefit-to-free-over-pedicled-vascularized-grafts-in-augmenting-tibial-intercalary-allograft-constructs
#10
Richard W Nicholas
No abstract text is available yet for this article.
January 11, 2017: Clinical Orthopaedics and related Research
https://www.readbyqxmd.com/read/28074234/-biological-downsizing-acetabular-defect-reconstruction-in-revision-total-hip-arthroplasty
#11
S Koob, S Scheidt, T M Randau, M Gathen, M D Wimmer, D C Wirtz, S Gravius
BACKGROUND: Periacetabular bony defects remain a great challenge in revision total hip arthroplasty. After assessment and classification of the defect and selection of a suitable implant the primary stable fixation and sufficient biological reconstitution of a sustainable bone stock are essential for long term success in acetabular revision surgery. Biological defect reconstruction aims for the down-sizing of periacetabular defects for later revision surgeries. TECHNIQUE: In the field of biological augmentation several methods are currently available...
February 2017: Der Orthopäde
https://www.readbyqxmd.com/read/28073833/exosomal-mir-142-3p-is-increased-during-cardiac-allograft-rejection-and-augments-vascular-permeability-through-down-regulation-of-endothelial-rab11fip2-expression
#12
Ihdina Sukma Dewi, Selvi Celik, Anna Karlsson, Zsuzsanna Hollander, Karen Lam, Janet-Wilson McManus, Scott Tebbutt, Raymond Ng, Paul Keown, Robert McMaster, Bruce McManus, Jenny Öhman, Olof Gidlöf
AIMS: Exosome-mediated microRNA transfer is a recently discovered mode of cell-to-cell communication, in which microRNAs act as paracrine molecules, exerting their regulatory effects in recipient cells. T cells and endothelial cells are two main players in the mechanism of acute cellular cardiac rejection. The aim of this study was to investigate the role of exosomal microRNAs in the crosstalk between T cells and endothelial cells and its implications for the molecular mechanisms that drive acute cellular rejection in heart transplantation...
January 10, 2017: Cardiovascular Research
https://www.readbyqxmd.com/read/28068842/tibialis-anterior-tendon-reconstruction-using-augmented-half-thickness-tendon-segment-transposition
#13
Christopher W Reb, James F Stenson, Joseph N Daniel
: Tibialis anterior tendon rupture causes substantial morbidity. The present study describes the outcomes of augmented, half-thickness tibialis anterior tendon segment transposition, a novel reconstruction technique. This was an institutional review board-approved retrospective review of 3 patients with surgically treated attritional distal rupture with 1-year follow-up. The postdebridement tendon defect prohibited primary repair and was managed by distal transposition of a half-thickness healthy segment...
January 1, 2017: Foot & Ankle Specialist
https://www.readbyqxmd.com/read/28054110/-periprosthetic-acetabular-fractures-in-geriatric-patients
#14
S C Herath, M F R Rollmann, T Histing, J H Holstein, T Pohlemann
Periprosthetic acetabular fractures in geriatric patients are rare injuries; however, the incidence is increasing because of the current demographic developments. For diagnosis of periprosthetic acetabular fractures, conventional X‑ray images are regularly complemented by computed tomography (CT). For exclusion of loosening of the prosthesis more advanced techniques, such as single photon emission CT (SPECT/CT) are applied. In addition to classification of periprosthetic acetabular fractures by the traditional system of Letournel there are several other classification systems, which take into account the etiology of the fracture and the stability of the prosthesis...
February 2017: Der Chirurg; Zeitschrift Für Alle Gebiete der Operativen Medizen
https://www.readbyqxmd.com/read/28045880/targeted-complement-inhibition-protects-vascularized-composite-allografts-from-acute-graft-injury-and-prolongs-graft-survival-when-combined-with-subtherapeutic-cyclosporine-a-therapy
#15
Peng Zhu, Stefanie R Bailey, Biao Lei, Chrystal M Paulos, Carl Atkinson, Stephen Tomlinson
BACKGROUND: Recipients of vascularized composite allografts require aggressive and life-long immunosuppression, and since the surgery is usually performed in nonlife threatening situations, the development of strategies to minimize immunosuppression is especially pertinent for this procedure. We investigated how complement affects acute graft injury, alloimmunity, and immunosuppressive therapy. METHODS: Vascularized composite allografts were transplanted from Balb/C to C57BL/6 mice that were complement deficient (C3 or double C3a Receptor (R)/C5aR), or treated with a targeted complement inhibitor (CR2-Crry)...
December 30, 2016: Transplantation
https://www.readbyqxmd.com/read/28042439/full-arch-rehabilitation-in-severe-maxillary-atrophy-with-palatal-approach-implant-placement-a-case-report
#16
M Andreasi Bassi, M A Lopez, C Andrisani, Z Ormanier, M Gargari
PURPOSE: The edentulous severely atrophic maxilla, as consequence of alveolar bone resorption and pneumatisation of the maxillary sinus, represents a serious limitation to the implant rehabilitation. Implants insertion via palatal approach (PA), in combination with relatively minimally invasive techniques aimed at increasing bone volume without the use of autologous bone harvesting is a valid alternative among the options for the rehabilitation of the upper jaw. CLINICAL CASE: In a 70-year-old female, with a severe maxillary atrophy, 6 spiral taper implants were placed with the PA, combined with the bilateral transcrestal elevation of both the sinus floors and nasal cavities; a further GBR, with resorbable pericardium membrane covering a termoplastic allograft associated to a xenograft, was performed...
July 2016: Oral & Implantology
https://www.readbyqxmd.com/read/28042115/reconstruction-of-non-contained-acetabular-defects-with-impaction-grafting-a-reinforcement-mesh-and-a-cemented-polyethylene-acetabular-component
#17
REVIEW
B S Waddell, A Gonzalez Della Valle
This review summarises the technique of impaction grafting with mesh augmentation for the treatment of uncontained acetabular defects in revision hip arthroplasty. The ideal acetabular revision should restore bone stock, use a small socket in the near-anatomic position, and provide durable fixation. Impaction bone grafting, which has been in use for over 40 years, offers the ability to achieve these goals in uncontained defects. The precepts of modern, revision impaction grafting are that the segmental or cavitary defects must be supported with a mesh; the contained cavity is filled with vigorously impacted morselised fresh-frozen allograft; and finally, acrylic cement is used to stabilise the graft and provide rigid, long-lasting fixation of the revised acetabular component...
January 2017: Bone & Joint Journal
https://www.readbyqxmd.com/read/28040077/closing-the-gap-a-novel-technique-for-humeral-shaft-nonunions-using-cup-and-cone-reamers
#18
Brian T Nickel, Mitchell R Klement, Marc J Richard, Robert Zura, Grant E Garrigues
INTRODUCTION: Nonunion following closed treatment of humeral shaft fracture is estimated to be 5.5%. Many surgical techniques have been described to address humeral shaft nonunion including: open reduction, internal fixation (ORIF) with compression plating and bone graft, dual plating, cortical strut allograft and autograft, and adding biologic augmentation (BMP). The current standard of care includes ORIF with compression plating and bone grafting, but even this technique has an approximated 10% failure rate...
December 2016: Injury
https://www.readbyqxmd.com/read/28039517/solvent-dehydrated-dermal-allograft-axis%C3%A2-augmented-cystocele-repair-longitudinal-results
#19
Saad Juma, Omer A Raheem
INTRODUCTION AND HYPOTHESIS: Surgical repair options for pelvic organ prolapse (POP) include native tissue, allograft, xenograft, and synthetic grafts. Solvent-dehydrated dermal allograft (SDDG) has an improved safety profile. We evaluated the long-term safety and efficacy of SDDG use for cystocele repair. METHODS: A total of 184 patients completed a minimum follow-up of 12 months. Incontinence Impact Questionnaire (IIQ), Urogenital Distress Inventory (UDI), and Visual Analogue Scale (VAS) were used pre and post operatively...
December 30, 2016: International Urogynecology Journal
https://www.readbyqxmd.com/read/28024306/a-canine-arthroscopic-anterior-cruciate-ligament-reconstruction-model-for-study-of-synthetic-augmentation-of-tendon-allografts
#20
James L Cook, Pat Smith, James P Stannard, Ferris Pfeiffer, Keiichi Kuroki, Chantelle C Bozynski, Cristi Cook
Novel graft types, fixation methods, and means for augmenting anterior cruciate ligament (ACL) reconstructions require preclinical validation prior to safe and effective clinical application. The objective of this study was to describe and validate a translational canine model for all-inside arthroscopic complete ACL reconstruction using a quadriceps tendon allograft with internal brace (QTIB). With institutional approval, adult research hounds underwent complete transection of the native ACL followed by all-inside ACL reconstruction using the novel QTIB construct with suspensory fixation (n = 10)...
December 26, 2016: Journal of Knee Surgery
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