Purpose: The objective of this study was to compare the osseodensification drilling technique used with Densah implant drills (Versah) to standard drilling by evaluating their contribution to primary implant stability.
Materials And Methods: A total of 21 mandibles dissected from cadavers were selected. Axiom drills (Anthogyr) were used for 29 standard drilling (SD) protocols in the control group. In the test group, the Densah profile drills were used to perform 29 osteotomies (OD). Implant placement was performed for 58 of these procedures. The insertion torque (IT) and implant stability quotient (ISQ) were recorded. High-resolution CBCT allowed for a postoperative analysis of the peri-drilling bone tissue. For 16 osteotomies without implant placement, Mann-Whitney U test was used for comparison of IT and ISQ values between groups. Spearman rank correlation coefficient was used between IT and ISQ values. The significance level was α = .05.
Results: The IT values for OD and SD were, respectively, 34.9 Ncm ± 19.1 and 23.6 Ncm ± 9.8. The IT was significantly higher in the OD group compared to the SD group (P = .036). A moderate positive correlation (ρ = 0.527) between IT and ISQ was observed, as well as a significant increase (P = .026) in bone density.
Conclusion: There was a significant increase in IT and bone density following an osseodensification procedure compared to standard drilling.
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http://dx.doi.org/10.11607/jomi.9144 | DOI Listing |
Ann Chir Plast Esthet
January 2025
Department of Plastic and Reconstructive Surgery, Dongtan Sacred Heart Hospital, Hallym University College of Medicine, Hwaseong, Republic of Korea.
Background: Unicortical plate fixation offers several theoretical advantages in the treatment of metacarpal shaft fractures compared to bicortical fixation. This approach avoids the potential hazard of excessive drilling into the volar cortex, thus minimizing damage to surrounding soft tissues and helping prevent complications related to improperly sized screws. These benefits prompted our team to conduct a preliminary clinical study to investigate the effectiveness and safety of this approach.
View Article and Find Full Text PDFCatheter Cardiovasc Interv
January 2025
Department of Cardiology, Heart Center and Beijing Key Laboratory of Hypertension, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.
We report the case of a 73-year-old male with a history of recurrent coronary interventions who presented with progressive angina and was diagnosed with a chronic total occlusion (CTO) of a heavily calcified and tortuous right coronary artery (RCA). Standard antegrade and retrograde techniques were attempted but failed due to the complexity of the lesion. A novel "Drag-Drill" technique was employed, utilizing a retrogradely externalized RG3 guidewire as a rotational atherectomy wire, enabling successful rotational atherectomy and percutaneous coronary intervention (PCI).
View Article and Find Full Text PDFEur J Trauma Emerg Surg
January 2025
Department of Trauma Surgery, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands.
Purpose: The aim of this study was to evaluate the feasibility of using patient-specific implants (PSI) for complex shaft corrective osteotomies in multiplanar deformities of long bones in the lower extremities. Additionally, it aimed to investigate the added value of these implants by quantifying surgical accuracy on postoperative CT, comparing their outcomes to two commonly used techniques: 3D virtual visualizations and 3D-printed surgical guides.
Methods: Six tibial and femoral shaft corrective osteotomies were planned and performed on three Thiel embalmed human specimen.
World J Orthop
January 2025
Department of Orthopedics, The 940 Hospital of Joint Logistic Support Force of Chinese People's Liberation Army, Lanzhou 730000, Gansu Province, China.
Background: Tuberculosis is among the most devastating infectious diseases worldwide. Spinal tuberculosis is not easy to detect at an early stage, which without effective treatment often leads to spinal deformity and spinal cord damage which in turn cause complications such as paraplegia and quadriplegia. In this study, we established a model using three concentrations of bacteria and carried out a comprehensive evaluation of the model by imaging, general observations, and histopathological and bacteriological studies.
View Article and Find Full Text PDFSci Rep
January 2025
Department of Oral and Maxillofacial Surgery, Faculty of Medicine, Medical Center - University of Freiburg, University of Freiburg, Freiburg, Germany.
This experimental phantom study investigates current standard of care protocols in cone beam computed tomography (CBCT), energy-integrating-detector (EID) CT, and photon-counting-detector (PCD) CT regarding their potential in delineation of dental root canals. Artificial accessory canals (diameters: 1000, 600, 400, 300 and 200 μm) were drilled into three bovine teeth mounted on a bovine rib as a jaw substitute. The phantom was scanned in two dental CBCTs, two EID-CTs and a PCD-CT using standard clinical protocols.
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