Hyperextension injuries of the thoracolumbar spine in diffuse idiopathic skeletal hyperostosis.

Study Design: Retrospective study of a consecutive series of patients with thoracolumbar hyperextension injuries (TLHIs) complicated by diffuse idiopathic skeletal hyperostosis (DISH) presenting to a single institution during a 9-year period.

Objective: Assess epidemiological data, trauma mechanism, injury characteristics in hyperostotic spines, and short-term outcome.

Summary Of Background Data: An increase in TLHIs complicated by DISH was observed.

Influence of platelet-rich plasma on the anterior fusion in spinal injuries: a qualitative and quantitative analysis using computer tomography.

Introduction: The effects of platelet-rich plasma (PRP) were monitored by performing a controlled cohort study of patients undergoing an anterior spinal fusion. One group was treated with the addition of PRP. The growth factors contained within the blood platelets are known to play an important role in the new formation of bone following fractures or the implantation of bone grafts.

Suitability of a calcium phosphate cement in osteoporotic vertebral body fracture augmentation: a controlled, randomized, clinical trial of balloon kyphoplasty comparing calcium phosphate versus polymethylmethacrylate.

Study Design: A prospective randomized controlled clinical study.

Objective: To investigate the feasibility of a calcium phosphate cement (CaP) in balloon kyphoplasty if compared to polymethylmethacrylate (PMMA).

Summary Of Background Data: In kyphoplasty and vertebroplasty, PMMA currently represents the standard in augmentation materials.

Volumetric changes of iliac crest autografts used to reconstruct the anterior column in thoracolumbar fractures: a follow-up using CT scans.

Study Design: Patients with a thoracolumbar injury had a reconstruction of the anterior column using an tricortical iliac crest autograft. The volume and the length of the autograft were measured after 9 and 21 months using computed tomography.

Objective: To assess the volumetric change of an iliac crest autograft used to perform a reconstruction of the anterior column.

The influence of posterior instrumentation on adjacent and transfixed facet joints in patients with thoracolumbar spinal injuries: a morphological in vivo study using computerized tomography osteoabsorptiometry.

Study Design: Subchondral mineralization of adjacent and transfixed facet joints was analyzed in patients with thoracolumbar spinal injuries, both before posterior instrumentation and after removal of the spinal implant.

Objective: To examine the influence of posterior instrumentation on content and distribution of subchondral mineralization as a correlate of the long-term load acting on the adjacent and transfixed zygapophysial joints.

Summary Of Background Data: Posterior stabilization plays an important role in the treatment of spinal injuries and is a standard technique for the treatment of thoracolumbar spinal fractures.

Bilateral patellar tendon rupture without predisposing systemic disease or steroid use: a case report and review of the literature.

Simultaneous bilateral patella tendon ruptures are very rare injuries of the knee extensor complex often associated with systemic disorders such as lupus erythematosus or rheumatoid arthritis. We describe the case of a 34-year-old man without concomitant systemic disease or steroid use and provide the most comprehensive review of the German and English literature. Furthermore, we discuss the predisposing factors and causal mechanisms as well as current diagnostic procedures and treatment options.

Skill dependence of radiation exposure for the orthopaedic surgeon during interlocking nailing of long-bone shaft fractures: a clinical study.

Introduction: The objective of this clinical trial was to determine whether there is a skill dependence for the total amount of radiation exposure to orthopaedic surgeons caused by fluoroscopy during intramedullary fracture fixation.

Materials And Methods: Surgical teams were assigned to either the 'Senior group' or the 'Junior group' according to their professional qualification and clinical appointment. Twenty-two long-bone shaft fractures were stabilized with intramedullary nails.

Talar dislocations.

From 1987-2003, 36 patients were treated for talar dislocation, 27 patients for subtalar, six for total talar, and three patients for peritalar dislocation. Luxatio pedis sub talo: We found 19 medial closed, seven lateral closed and one third degree open subtalar dislocations. Our therapeutic concept provides for immediate reduction, which is possible by closed procedure for the majority of medial dislocations.

Recombinant human bone morphogenetic protein-2 for treatment of open tibial fractures: a prospective, controlled, randomized study of four hundred and fifty patients.

Background: The treatment of open fractures of the tibial shaft is often complicated by delayed union and nonunion. The objective of this study was to evaluate the safety and efficacy of the use of recombinant human bone morphogenetic protein-2 (rhBMP-2; dibotermin alfa) to accelerate healing of open tibial shaft fractures and to reduce the need for secondary intervention.

Methods: In a prospective, randomized, controlled, single-blind study, 450 patients with an open tibial fracture were randomized to receive either the standard of care (intramedullary nail fixation and routine soft-tissue management [the control group]), the standard of care and an implant containing 0.

Successful transpedicular lumbar interbody fusion by means of a composite of osteogenic protein-1 (rhBMP-7) and hydroxyapatite carrier: a comparison with autograft and hydroxyapatite in the sheep spine.

Study Design: Transpedicular lumbar interbody fusion (TLIF) was performed in a sheep model comparing three treatment groups: a composite of osteogenic protein (OP)-1 and hydroxyapatite carrier (HA), HA without OP-1, and autograft.

Objective: To evaluate the efficacy of the composite of OP-1 and HA (HA-OP-1) in achieving reliable TLIF.

Summary Of Background Data: Anterior fusion techniques directly address disc-related problems and achieve primary axial stability.