Mid-term survival following primary hinged total knee replacement is good irrespective of the indication for surgery.

Purpose: The use of 'hinged' knee prostheses for primary knee arthroplasty procedures is increasing. This analysis reports the rates of implant survival, modes of failure, revision details and functional outcomes with particular reference to the primary indication for surgery for a cohort of patients treated with primary hinged knee replacement.

Methods: Systematic review with supplementary analysis using data from the National Joint Registry and Department of Health.

Comparison of cement pressurisation in flanged and unflanged acetabular cups.

Background: This biomechanical study examined difference in cement pressures generated by flanged and unflanged acetabular cups in hip arthroplasty.

Method: Using a model acetabulum, cement was inserted and pressurised followed by cup insertion and pressurisation. Pressures were recorded using transducers in the acetabulum.

Outcome of ankle arthrodesis using a transfibular approach.

Variable union rates in ankle arthrodesis using different surgical techniques have been reported in the biomedical literature. However, the advantages of a transfibular approach with sagittal splitting of the fibula have not been widely reported, even though the technique is well known and even described in surgical textbooks. We analyzed outcomes in our practice for all patients who underwent ankle arthrodesis.

Interobserver and intraobserver variations in tibial pilon fracture classification systems.

Background: Tibial pilon injuries are a complex group of fractures, whose classification and radiological assessment has been under constant reform. Till date, there is no universally accepted classification system.

Objective: To determine the interobserver agreement and intraobserver reproducibility of Ruedi and Allgower, AO, and Topliss et al.

Direct exchange endoprosthetic reconstruction with tumour prosthesis for periprosthetic knee infection associated with segmental bone defects.

Revision knee arthroplasty for infection poses a treatment challenge. The presence of massive osteolysis limits the treatment options in this cohort. Controversy exists in the management of these patients.

Early results of a new highly porous modular acetabular cup in revision arthroplasty.

Background: The 'Tritanium' (Stryker, New Jersey, USA) highly porous acetabular cup is a new implant used in revision hip arthroplasty.

Aim: To determine the early results of this device.

Methods: A prospective study of 43 acetabular component revisions performed using the implant between March 2007 and February 2008 was undertaken.

Early catastrophic failure of Birmingham acetabular dysplasia cup in revision arthroplasty: a case report.

Introduction: Revision acetabulum arthroplasty is one of the common procedures, which has been on the rise recently. Many implants are available in the market with variable results. Aseptic loosening is the most common indication for revision acetabulum arthroplasty.

Unique relationship between osteophyte and femoral-tibia component size mismatch in determining polyethylene wear in primary total knee arthroplasty: a case report.

Introduction: Knee pain is a complex problem that can occur after total knee arthroplasty. One cause of knee pain may be due to a retained osteophyte, but it is not clear if the retained osteophyte is sufficient explanation of the pain, as not all patients with retained osteophytes are symptomatic. In fact, the literature shows that excised osteophytes can also recur over a period of time, without any symptoms.

The treatment of distal femoral fractures in children using the LISS plate: a report of two cases.

We report two cases in which the technique of fracture fixation using the Less Invasive Stabilisation System (LISS) has been successfully used in the management of distal femoral fractures in the child.

A biomechanical study comparing a raft of 3.5 mm cortical screws with 6.5 mm cancellous screws in depressed tibial plateau fractures.

There has been a recent trend towards using a raft of small diameter 3.5mm cortical screws for supporting depressed tibial plateau fractures (Schatzker type III). Our aim was to compare the biomechanical properties of a raft of 3.