OBJECTIVE To review the biomechanical principles that guide fracture fixation with plates and screws; specifically to compare and contrast the function and roles of conventional unlocked plates to locked plates in fracture fixation. We review basic plate and screw function, discuss the design rationale for the new implants, and examine the biomechanical evidence that supports the use of such im...

BACKGROUND Over the past decades, the operative treatment of displaced midshaft clavicular fractures has increased. The aim of this study was to compare short and midterm results of open reduction and plate fixation with those of intramedullary nailing for displaced midshaft clavicular fractures. METHODS A multicenter, randomized controlled trial was performed in four different hospitals. The...

Nowadays, the exact efficacy of intramedullary devices fixation and plate fixation for adult displaced midshaft clavicle fractures (DMCF) is still debated. This study aims to re-assess the functional outcomes and complications of the two optimal surgical approaches. Cochrane Central Register of Controlled Trials, EMABASE, and PubMed databases were searched for the literature that studied the ef...

Progress Using mathematical models, we are investigating the influence of plate fixation on the internal stresses in long bones subjected to all known in vivo loading modes . The variables we are studying include : plate geometry, plate/bone fixity, and screw tightness. The mathematical models are based upon the finite element technique . The models will be subjected to all physiological loadin...

Proximal humerus fractures are relatively common, accounting for 5% to 9% of all fractures.1-3 These fractures can pose a challenge for the treating orthopaedist because of the generally osteoporotic nature of bone in the elderly and the relative deforming forces of the surrounding muscles. Fractures are classified according to the Neer criteria, and treatment is often guided by the relative di...

doi:10.3415/VCOT-12-12-0154 Our first issue of VCOT for this year contains several papers pertaining to the study of fracture morphology, and the stabilization of fractures with bone plates (1-3). In addition, Herten and colleagues describe the characterization of mesenchymal stem cells isolated from bone marrow by a point-of-care device; these cells had osteogenic potential that could be expec...

BACKGROUND Both the mini-plate fixation and suture suspensory fixation techniques are extensively applied in cervical laminoplasty, but which technique is superior has not been ascertained. The purpose of this meta-analysis is to compare the results between mini-plate fixation and suture suspensory fixation in cervical laminoplasty for the patients with multilevel cervical compressive myelopath...

doi:10.3415/VCOT-12-12-0154 Our first issue of VCOT for this year contains several papers pertaining to the study of fracture morphology, and the stabilization of fractures with bone plates (1-3). In addition, Herten and colleagues describe the characterization of mesenchymal stem cells isolated from bone marrow by a point-of-care device; these cells had osteogenic potential that could be expec...

Main principle of biological fixation by minimally invasive locked plate osteosynthesis (MILPO) in lower extremity long bone fractures is relative stability which is provided by using long plate with limited number of screws. Some biomechanical studies have been reported about this issue. However, clinical studies are still missing. The aims of this retrospective extended case series were to ev...