Posteriorly augmented anastomotic ureteroplasty with lingual mucosal onlay grafts for long proximal ureteral strictures: Ten cases of experience

2020 ◽  
Author(s):  
Shubo Fan ◽  
Lu Yin ◽  
Kunlin Yang ◽  
Jie Wang ◽  
Xinfei Li ◽  
...  
Keyword(s):  
Onlay Grafts

scholarly journals Simultaneous implant placement with autogenous onlay bone grafts: a systematic review and meta-analysis

2021 ◽  
Vol 7 (1) ◽  
Author(s):  
Guoqiang Ma ◽  
Chaoan Wu ◽  
Miaoting Shao
Keyword(s):  
Meta Analysis ◽  
Survival Rates ◽  
Bone Grafts ◽  
Implant Survival ◽  
Analysis Model ◽  
Implant Placement ◽  
Significant Difference ◽  
Delayed Implant Placement ◽  
Onlay Grafts

AbstractSeveral authors have suggested that implants can be placed simultaneously with onlay bone grafts without affecting outcomes. Therefore, the purpose of this study was to answer the following clinical questions: (1) What are the outcomes of implants placed simultaneously with autogenous onlay bone grafts? And (2) is there a difference in outcomes between simultaneous vs delayed placement of implants with autogenous onlay bone grafts? Databases of PubMed, Embase, and Google Scholar were searched up to 15 November 2020. Data on implant survival was extracted from all the included studies (single arm and comparative) to calculate point estimates with 95% confidence intervals (CI) and pooled using the DerSimonian–Laird meta-analysis model. We also compared implant survival rates between the simultaneous and delayed placement of implants with data from comparative studies. Nineteen studies were included. Five of them compared simultaneous and delayed placement of implants. Dividing the studies based on follow-up duration, the pooled survival of implant placed simultaneously with onlay grafts after <2.5 years of follow-up was 93.1% (95% CI 82.6 to 97.4%) and after 2.5–5 years was 86% (95% CI 78.6 to 91.1%). Implant survival was found to be 85.8% (95% CI 79.6 to 90.3%) with iliac crest grafts and 95.7% (95% CI 83.9 to 93.0%) with intra-oral grafts. Our results indicated no statistically significant difference in implant survival between simultaneous and delayed placement (OR 0.43, 95% 0.07, 2.49, I2=59.04%). Data on implant success and bone loss were limited. Data indicates that implants placed simultaneously with autogenous onlay grafts have a survival rate of 93.1% and 86% after a follow-up of <2.5 years and 2.5–5years respectively. A limited number of studies indicate no significant difference in implant survival between the simultaneous and delayed placement of implants with onlay bone grafts. There is a need for randomized controlled trials comparing simultaneous and delayed implant placement to provide robust evidence.

The Versatile Autogenous Rib Graft in Septorhinoplasty

1998 ◽  
Vol 12 (3) ◽  
pp. 221-228 ◽  
Author(s):  
David A. Sherris ◽  
Eugene B. Kern
Keyword(s):  
Costal Cartilage ◽  
Cartilage Graft ◽  
Cartilage Grafts ◽  
Conchal Cartilage ◽  
Revision Rhinoplasty ◽  
Dorsal Onlay ◽  
Harvest Techniques ◽  
Onlay Grafts ◽  
Graft Resorption ◽  
Costal Cartilage Graft

In the graft depleted revision rhinoplasty patient and the patient with major tissue needs, alternatives to septal and conchal cartilage grafts are needed. The costal cartilage graft and rib bone/costal cartilage combination graft are excellent alternatives. In this study 14 patients received 40 grafts from 20 autogenous ribs harvested during septorhinoplasty. Materials were harvested for use as septal replacement grafts, cantilevered grafts, dorsal onlay grafts, columellar struts, and tip grafts. Patient followup was 6 to 31 months, and no evidence of graft resorption or warpage was evident during that period. Complications of harvest were minimal, and harvest techniques are detailed.

Application of a hydrogel sealant improves watertight closures of duraplasty onlay grafts in a canine craniotomy model

2007 ◽  
Vol 107 (3) ◽  
pp. 642-650 ◽  
Author(s):  
Mark C. Preul ◽  
Patrick K. Campbell ◽  
William D. Bichard ◽  
Robert F. Spetzler
Keyword(s):  
Bone Flap ◽  
Adhesion Barrier ◽  
Treatment Groups ◽  
Minimal Scarring ◽  
Csf Leakage ◽  
Dural Leak ◽  
Watertight Closure ◽  
The Mean ◽  
Dural Defects ◽  
Onlay Grafts

Object The authors evaluated whether a polyethylene glycol–based hydrogel sealant system improved dural closures with collagen-based duraplasty onlay grafts. Methods Dural defects 1.5 cm in diameter were created in 12 canines and repaired with one of two commercially available duraplasty onlay products. In six animals, hydrogel was applied onto the dural onlays, and the other six animals underwent duraplasty only. Before bone flap replacement, watertight closure was assessed. Before the animals were killed, the craniotomy was reopened, adhesions were rated by a neurosurgeon blinded to the treatment groups, and dural integrity was assessed using pressure testing. Results The animals that received the hydrogel sealant in addition to the duraplasty withstood intraoperative Valsalva maneuvers up to 20 cm H2O without cerebrospinal fluid (CSF) leakage. The duraplasty-only animals leaked CSF at spontaneous pressures (p = 0.0022). Postoperatively, all six duraplasty-only dogs developed CSF subcutaneous accumulations, compared with only one (16.7%) dog who underwent hydrogel application (p = 0.0152). At the time of harvesting (8 weeks after implantation), duraplasty-only dogs had extensive scarring between the bone flap and the dura mater (median adhesion score 4, range 3–4). The animals receiving hydrogel showed minimal scarring (median adhesion score 0.5, range 0–2). In hydrogel-treated dogs, the mean adhesion score was 82.6% lower than the scores in duraplasty-only animals (p = 0.0043). In animals receiving hydrogel, the mean dural leak pressure was 56.8 ± 2.5 cm H2O compared with 9.8 ± 3.8 cm H2O in duraplasty-only dogs (p = 0.0392). Application of the hydrogel was not associated with neurotoxicity, delayed healing, degenerative changes, or increased dura–cortex adhesions. Conclusions The hydrogel sealant applied to collagen-based dural grafts significantly reduced CSF leakage and functioned as an adhesion barrier. Such technology could be an important tool for cranial surgery.

scholarly journals One-Stage Urethroplasty for Strictures in Maiduguri, North Eastern Nigeria

ISRN Urology ◽  
2012 ◽  
Vol 2012 ◽  
pp. 1-4 ◽  
Author(s):  
Ahmed Gadam Ibrahim ◽  
Nuhu Ali ◽  
Sulieman Aliyu ◽  
Abubakar Alhaji Bakari
Keyword(s):  
Urethral Stricture ◽  
Urinary Tract Obstruction ◽  
One Stage ◽  
Lower Urinary Tract Obstruction ◽  
North Eastern ◽  
Posterior Urethra ◽  
Dorsal Onlay ◽  
Onlay Grafts ◽  
Outcome Of Surgery ◽  
Diagnostic Investigations

Background. Urethral stricture is a frequent cause of lower urinary tract obstruction worldwide. The aim of this study is to present our experience with one-stage urethroplasty. Methods. All males that underwent one-stage urethroplasty between January 2001 and December 2010 were retrospectively reviewed. Details of their biodata, clinical presentation, diagnostic investigations, operative treatment, postoperative complications, and other outcome of surgery were extracted and analyzed. Results. Ninety-one patients aged 8–76 years, (mean; ) with urethral stricture were studied. Postinfective strictures accounted for 58.2% and postprostatectomy strictures for 3.3%. Twenty-six (27.9%) of the strictures were in the posterior urethra of which 18 (59.2%) were posttraumatic. Fifty-seven strictures (61.3%) were in the anterior urethra of which 51 (54.8%) were postinfective. Thirty-nine (42.9%) patients had end to end anastomosis, 29 (31.9%) flap augmentation and 17 (18.7%) tabularized flap substitution, and 6 (6.6%) dorsal onlay grafts (5 with buccal mucosa and 1 with penile skin). There were 18 (19.8%) cases of wound infection, 12 (13.2%) of restricture and 6 (6.6%) cases of urethrocutaneous fistula. Satisfactory urinary stream was found in 77 (84.6%) patients. There was no mortality. Conclusion. Infection is the commonest cause of urethral stricture followed by trauma, and one-stage urethroplasty give excellent results.

Osseointegration of dental implants in 3D-printed synthetic onlay grafts customized according to bone metabolic activity in recipient site

Biomaterials ◽  
2014 ◽  
Vol 35 (21) ◽  
pp. 5436-5445 ◽  
Author(s):  
Faleh Tamimi ◽  
Jesus Torres ◽  
Khadijeh Al-Abedalla ◽  
Enrique Lopez-Cabarcos ◽  
Mohammad H. Alkhraisat ◽  
...  
Keyword(s):  
Dental Implants ◽  
Metabolic Activity ◽  
Recipient Site ◽  
3D Printed ◽  
Onlay Grafts

523 LONG-TERM RESULTS OF BUCCAL MUCOSA ONLAY GRAFTS IN HYPOSPADIAS REPAIR

2010 ◽  
Vol 183 (4S) ◽  
Author(s):  
Annette Schröder ◽  
Raimund Stein ◽  
Mascha Fiedler ◽  
Joachim W. Thüroff
Keyword(s):  
Buccal Mucosa ◽  
Long Term Results ◽  
Hypospadias Repair ◽  
Onlay Grafts

Primary reconstruction for spinal infections

1997 ◽  
Vol 86 (6) ◽  
pp. 981-989 ◽  
Author(s):  
Donald D. Dietze ◽  
Richard G. Fessler ◽  
R. Patrick Jacob
Keyword(s):  
Bacterial Infections ◽  
Iliac Crest ◽  
Spinal Instrumentation ◽  
Prolonged Treatment ◽  
Oral Antibiotic ◽  
Primary Reconstruction ◽  
Spinal Reconstruction ◽  
Antibiotic Drugs ◽  
Onlay Grafts ◽  
Spinal Infections

✓ Primary reconstruction using bone grafts and instrumentation for spinal infections remains controversial. Between 1991 and 1993, 27 infections of the spinal column were treated at the Department of Neurosurgery of the University of Florida. Of the 27 cases 20 (six cervical, eight thoracic, and six lumbar spine) required surgical debridement and spinal reconstruction to maximize eradication of the infection and maintenance of spinal alignment. All of the cervical and lumbar cases were caused by bacterial infections, and two of eight thoracic cases were caused by tuberculous infections. Spinal arthrodesis was performed in all cases: interbody grafts were used in 18 procedures and posterolateral onlay grafts in 14. Interbody grafts were autologous in 10 cases (six rib and four iliac crest) and allograft in eight (six fibular and two humerus). All of the posterolateral onlay grafts were autologous (three rib and 11 iliac crest). Spinal instrumentation was used in 15 cases: four with Caspar plates and 11 with posterior segmental fixation (five hook/rod constructs and six screw/rod constructs). Seventeen of 20 patients achieved improved clinical status postoperatively and 18 of 20 showed radiographic evidence of bone fusion. Antibiotic drugs were administered parenterally for an average of 6 weeks followed by a 3-month course of oral antibiotic medications. Tuberculous infections were treated for 1 year with antibiotic therapy. The after completion of treatment with antibiotic drugs. The authors conclude that primary arthrodesis and instrumentation can be performed in acute spinal infections; however, successful management depends on aggressive debridement of infectious foci and prolonged treatment with parenteral antibiotic drugs.

Sign in / Sign up

Export Citation Format

Share Document