Retrospective Comparative Study of the Influence on Quality of Primary Total Hip Arthroplasty by the EndoCert-Certification System in a Communal Hospital.

The EndoCert-Initiative system sets specific requirements for the structural, process and result quality in certified Arthroplasty Centers in Germany. However, it remains unclear to what extent the certification process can increase the quality in total hip and knee arthroplasty. Aim of the comparative retrospective study is to analyse the change in quality of total hip arthroplasty in a communal hospital before and after the certification process.

Periprosthetic Tibial Fracture with Nonunion and Ascending Prosthetic Joint Infection: A Case Report of an Individual Treatment Strategy.

Introduction: Periprosthetic fractures are severe injuries that demand the surgeon's full expertise and special diagnostic and therapeutic strategies. A major complication is the occurrence of an infectious nonunion, including an ascending infection from the fracture site to the arthroplasty.

Case Report: This case report presents on a patient with a well-functioning revision total knee arthroplasty (TKA) who suffered a periprosthetic tibia fracture.

[Simultaneous fracture of the acromion and coracoid process : Rare variant of double disruption of the superior shoulder suspensory complex].

Introduction: Simultaneous fracture of the acromion and coracoid process represents a double disruption of the superior shoulder suspensory complex (SSSC). To date, the two largest reported series have comprised five and eight cases. The aim of this study was to investigate the functional outcome in patients who sustained this rare injury and to provide a review of the relevant literature.

Axillary nerve lesions after open reduction and internal fixation of proximal humeral fractures through an extended lateral deltoid-split approach: electrophysiological findings.

Background: Axillary nerve injuries after shoulder surgery are rare. In most studies, the frequency of injury is usually determined using clinical examinations, but results from intraoperative neuromonitoring studies have revealed higher than expected rates. Few studies have investigated this topic.

Population-based prospective study on the incidence of osteoporosis-associated fractures in a German population of 200,413 inhabitants.

Background: A limited body of data is available with regard to the incidence of osteoporotic fractures in Germany. Most of the data published thus far have been derived from hospital records or health insurance settlements. The aim of the present study was to prospectively register four types of fractures in an urban population.

Retrograde cement removal in periprosthetic fractures following hip arthroplasty.

Introduction: Revision of cemented hip arthroplasty after periprosthetic fractures of the femur is a demanding procedure. Many different technical devices have been developed for this purpose. This paper presents a new surgical technique of cement removal avoiding excessive exposure of the fracture site.

Outcome after surgery of distal radius fractures: no differences between external fixation and ORIF.

The purpose of this study was to determine the most appropriate surgical treatment from three procedures used for fractures of the distal radius. In a retrospective comparative study, 166 out of 237 patients who underwent surgery for AO/ASIF A3 or C2 distal radius fractures were evaluated. Surgical procedures were external fixation or open reduction and internal fixation with either palmar or dorsal plates.

Outcome of surgically treated intraarticular calcaneus fractures--SF-36 compared with AOFAS and MFS.

Background: There is no consensus as to which is the best treatment for intraarticular fractures of the calcaneus. Furthermore, few studies have assessed general health after calcaneus fractures. We therefore measured the state of general health after operation of calcaneal fractures and compared these data with usual foot-scores.

Recombinogenic effects of suppressors of position-effect variegation in Drosophila.

Compact chromatin structure, induction of gene silencing in position-effect variegation (PEV), and crossing-over suppression are typical features of heterochromatin. To identify genes affecting crossing-over suppression by heterochromatin we tested PEV suppressor mutations for their effects on crossing over in pericentromeric regions of Drosophila autosomes. From the 46 mutations (28 loci) studied, 16 Su(var) mutations of the nine genes Su(var)2-1, Su(var)2-2, Su(var)2-5, Su(var)2-10, Su(var)2-14, Su(var)2-15, Su(var)3-3, Su(var)3-7, and Su(var)3-9 significantly increase in heterozygotes or by additive effects in double and triple heterozygotes crossing over in the ri-p(p) region of chromosome 3.