Staged horizontal bone augmentation for dental implants in aesthetic zones: A prospective randomized controlled clinical trial comparing a half-columnar bone block harvested from the ramus versus a rectangular bone block from the symphysis

In this study, the clinical outcomes of horizontal ridge augmentation using half-columnar bone grafts from the ramus (group I: 27 patients, 32 implants) versus rectangular bone grafts from the symphysis (group II: 19 patients, 27 implants) were compared; grafts were combined with organic bovine bone and collagen membrane. Cone beam computed tomography images were obtained preoperatively, immediately after restoration (baseline), and 1 year after loading. Four months after grafting, horizontal bone resorption at the alveolar crest did not differ significantly between the two groups (P=0.291).
Source: International Journal of Oral and Maxillofacial Surgery - Category: ENT & OMF Authors: Tags: Randomised Clinical Trial, Pre-Implant Surgery Source Type: research

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Authors: Park I, Oh MJ, Shin SJ Abstract For proper treatment of recurrent anterior instability of the shoulder with a bone defect, the defect size should be assessed preoperatively with three-dimensional computed tomography or magnetic resonance imaging. In general, the risk of postoperative recurrence of instability is estimated on the basis of preoperative imaging of bipolar bone defects: more than 20%-25% glenoid bone loss and off-track Hill-Sachs lesions have been considered risk factors for recurrence. In patients with a glenoid bone defect more than 20%-25%, a bone graft procedure, such as the Latarjet proce...
Source: Clinics in Orthopedic Surgery - Category: Orthopaedics Tags: Clin Orthop Surg Source Type: research
Selection of a meniscus allograft with a similar three-dimensional (3D) size is essential for good clinical results in meniscus allograft surgery. Direct meniscus sizing by MRI scan is not possible in total me...
Source: Journal of Experimental Orthopaedics - Category: Orthopaedics Authors: Tags: Research Source Type: research
Abstract Background and purpose - Early postoperative implant migration predicts failure of joint replacements. Bone mineral density reflects bone quality and bone-graft incorporation. Implant migration and bone densitometry analysis usually require special equipment. We investigated cup migration and bone mineral density changes simultaneously with low-dose CT scans after acetabular revision hip arthroplasty using impaction bone grafting.Patients and methods - We performed a low-dose CT postoperatively, after 6 weeks, and after 2 years in 17 patients, all revised using impaction bone grafting and a graft-compress...
Source: Acta Orthopaedica - Category: Orthopaedics Authors: Tags: Acta Orthop Source Type: research
Conclusions: Radiographic recovery of cortical and cancellous bone defects was achieved with high probability via refilling with HAp/Col composite over the 1-year period. PMID: 32429017 [PubMed - as supplied by publisher]
Source: Asian Spine Journal - Category: Orthopaedics Tags: Asian Spine J Source Type: research
AbstractThe anterolateral ligament (ALL) and capsule of the knee are anatomical structures involved in rotational stability and pivot-shift control. As such, it has been demonstrated that the extra-articular anterolateral procedures improve clinical outcome when performed as an augmentation of the anterior cruciate ligament (ACL) reconstruction in specific groups of patients. This review describes the postoperative imaging findings of two techniques used to perform these procedures, using magnetic resonance imaging (MRI), computed tomography (CT), and radiography. The first technique described is the lateral extra-articula...
Source: Skeletal Radiology - Category: Radiology Source Type: research
36Objectives: Due to a markedly immunosuppressive tumor microenvironment (TME), immunotherapy has had limited success in prostate cancer (PCa). Radiation therapy, which has shown to remodel the TME of irradiated tumors towards a more immune-susceptible phenotype even at low radiation doses of 2-3 Gy, is limited to the localized disease setting. Our goal is to demonstrate that systemically delivered targeted radionuclide therapy (TRT) using [90Y]Y-NM600 provides beneficial immunomodulatory effects that may enhance the response of PCa to immunotherapies. Methods: Male FVB mice bearing syngeneic prostate Myc-CaP tumor allogra...
Source: Journal of Nuclear Medicine - Category: Nuclear Medicine Authors: Tags: Center for Therapy Excellence YIA Symposium Source Type: research
CONCLUSIONS Our study confirmed that by the minimally invasive technique of bone graft harvesting adequate amount of tissue to treat defect fractures and non-unions can be harvested. Spongioplasty using grafts harvested in this manner is effective, with a minimum percentage of non-unions. The advantage of this technique is the proximity of the harvest site and the operative field and low level of pain. The minimally invasive graft harvesting represents a technique with a low risk of postoperative and late complications. Key words: bone graft, autografts, minimally invasive surgery, ilium, pain. PMID: 32396511 [PubMed -...
Source: Acta Chirurgiae Orthopaedicae et Traumatologiae Cechoslovaca - Category: Orthopaedics Tags: Acta Chir Orthop Traumatol Cech Source Type: research
ConclusionThis study shows that coracoid anatomy affects the location of bony Bankart defects in anterior shoulder instability. Lower and laterally prominent coracoids are associated with anterior –inferior lesions. This variation in anatomy should be considered during pre-op planning for surgeries involving bone graft.Level of evidenceLevel 4 basic science.
Source: Surgical and Radiologic Anatomy - Category: Anatomy Source Type: research
Background: Alveolar clefts give rise to many aesthetic and functional problems among affected patients. Therefore, surgical adjustments of the bony defective anomalies are important. The authors performed secondary bone grafts and analyzed the effects particularly on the nasal septum and maxillary area (midface). Methods: The patients who had alveolar bone grafts were retrospectively reviewed with pre/postoperative 3-dimensional computed tomography; the measurements included distances between the anterior nasal spine (ANS) and the vertical midline, angles between the nasal septum and the transverse line, and angles b...
Source: Journal of Craniofacial Surgery - Category: Surgery Tags: Clinical Studies Source Type: research
This study proposes a method for rapid and precise volumetric assessment of alveolar cleft defects using computed tomography data and computer-aided engineering (CAE) software. For comparison, 3-dimensional-printed models of the alveolar bone were also made. A simulated graft was used on the models and the graft volume was measured using the water displacement technique. We then compared the CAE software-derived volumes with the actual volumes of the simulated grafts. The intraclass correlation coefficient ranged from 0.95 to 0.97 (intraobserver) and 0.94 to 0.98 (interobserver), indicating a high level of reliability and ...
Source: Journal of Craniofacial Surgery - Category: Surgery Tags: Clinical Studies Source Type: research
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