Biomechanical testing of different posterior fusion devices on lumbar spinal range of motion.

Background: Recent minimal-invasive posterior fusion devices are supposed to provide stability and obtain fusion in combination with interbody cages in the instrumented segment. The aim of the present study is to evaluate the primary stability of two minimal-invasive posterior prototypes compared to an established spinous process plate and standard pedicle screw instrumentation.

Methods: Seven fresh frozen human cadaver lumbar spines (L2-L5) were tested in a spinal testing device with a moment of 7.

Misdiagnosis of Thoracolumbar Posterior Ligamentous Complex Injuries and Use of Radiographic Parameter Correlations to Improve Detection Accuracy.

Study Design: Retrospective study.

Purpose: To evaluate radiological parameters as indicators for posterior ligamentous complex (PLC) injuries in the case of limited availability of magnetic resonance imaging.

Overview Of Literature: Traumatic thoracolumbar spinal fractures with PLC injuries can be misdiagnosed on X-rays or computed tomography scans.

The effect of different collagen modifications for titanium and titanium nitrite surfaces on functions of gingival fibroblasts.

Objectives: Targeted modifications of the bulk implant surfaces using bioactive agents provide a promising tool for improvement of the long-term bony and soft tissue integration of dental implants. In this study, we assessed the cellular responses of primary human gingival fibroblasts (HGF) to different surface modifications of titanium (Ti) and titanium nitride (TiN) alloys with type I collagen or cyclic-RGDfK-peptide in order to define a modification improving long-term implants in dental medicine.

Materials And Methods: Employing Ti and TiN implants, we compared the performance of simple dip coating and anodic immobilization of type I collagen that provided collagen layers of two different thicknesses.

Arthroscopic treatment of bilateral snapping scapula syndrome: a case report and review of the literature.

Snapping scapula syndrome represents a rare entity in shoulder surgery. Clinically, it presents as shoulder pain and loud crepitus during shoulder movement. Moreover, glenohumeral bursitis can cause additional pain.

CERAMENT treatment of fracture defects (CERTiFy): protocol for a prospective, multicenter, randomized study investigating the use of CERAMENT™ BONE VOID FILLER in tibial plateau fractures.

Background: Bone graft substitutes are widely used for reconstruction of posttraumatic bone defects. However, their clinical significance in comparison to autologous bone grafting, the gold-standard in reconstruction of larger bone defects, still remains under debate. This prospective, randomized, controlled clinical study investigates the differences in pain, quality of life, and cost of care in the treatment of tibia plateau fractures-associated bone defects using either autologous bone grafting or bioresorbable hydroxyapatite/calcium sulphate cement (CERAMENT™|BONE VOID FILLER (CBVF)).

Fatigue stress fractures of the pelvis: a rare cause of low back pain in female athletes.

Stress fracture of the pelvis represents one rare differential diagnosis among the manifold causes of low back pain in female athletes. We report a case of fatigue stress fracture of the pelvis in a 24-year-old female athlete as an unusual differential diagnosis of low back pain that should be taken into consideration. According to the literature the incidence of low back pain in athletes ranges from 1% to 30% and is influenced by sport type, gender, training intensity, training frequency and technique.

Septic arthritis of the shoulder joint: an analysis of management and outcome.

We retrospectively reviewed the records of 21 patients (23 shoulders) who underwent surgical treatment for septic arthritis of the shoulder joint, between 2000 and 2007. Patients were on average 63.7 (41-85) years old; they were treated either by arthroscopic debridement (12 shoulders) or by combined arthroscopic and open procedures (11 shoulders).

Surgical management of sternoclavicular septic arthritis.

Introduction: Septic arthritis of the sternoclavicular joint (SCJ) is a rare condition and has many diagnostic and therapeutic standards. The purpose of this study was to evaluate our experience with surgical and diagnostic management to provide a surgical pathway to help surgeons treat this disease.

Method: We retrospectively reviewed five patients who were managed surgically between 1999 and 2007.

Intraosseous foreign body granuloma in rotator cuff repair with bioabsorbable suture anchor.

Biodegradable implants lead to problems such as cyst formation, soft-tissue inflammation, loose implant fragments or local osteolysis. This report represents the first published case of an intraosseous foreign body granuloma in the humeral head after arthroscopic rotator cuff tear fixation with a poly-L: -lactide (PLLA) suture anchor. A 48-year-old female patient presented with pain in her right shoulder.

The influence of elementary silver versus titanium on osteoblasts behaviour in vitro using human osteosarcoma cell lines.

Purpose. The antimicrobial effect of a silver-coated tumor endoprosthesis has been proven in clinical and experimental trials. However, in the literature there are no reports concerning the effect of elementary silver on osteoblast behaviour.