Aims

There is an increasing demand for hip arthroplasty in China. We aimed to describe trends in in-hospital mortality after this procedure in China and to examine the potential risk factors.

The records of these patients show that restitution of joint function is quite possible even after severe disease. These results have been obtained by a combination of three methods, constitutional, antibiotic and operative. The duration of treatment averaged ten months and the patients were discharged to full activities in a short time without splints. There was one immediate failure in a child who received full, early and adequate treatment. There were two late relapses in patients treated early in the series whose operation was inadequate. The results were more variable in adults. If it is conceded that the triple treatment is valuable for patients with bone necrosis or severe synovial disease with pus in the joint, eight patients in this series remain who might have got better without operation. Two of these had had a synovial biopsy before admission. Whether the remaining six would have done as well without operation is a matter for speculation. It is difficult to assess the condition inside the joint solely by radiographic examination. Cauchoix (1955) allows me to say that, at the Institut Calot, Berck Plage, he has used similar methods to those reported in this paper, and that he endorses my belief that good results can be obtained by them. He does not, however, open the joint when operating upon an iliac focus, and for patients with purely synovial disease he prefers repeated intra-articular injections of streptomycin to operation. For my part, I consider that a simple arthrotomy at the beginning of treatment is less disturbing, and that, even if it is only done for diagnosis, it may be of therapeutic benefit. To me it seems unjustifiable to delay intra-articular operation for a patient whose hip disease is not manifestly resolving: operation is especially indicated for patients who have necrotic bone lesions

The August 2013 Hip & Pelvis Roundup. 360 . looks at: are we getting it right first time?; tantalum augments in revision hip surgery; lower wear in dual mobility?; changing faces changes outcomes; synovial fluid aspiration in MOM hips; taper disease: the new epidemic of hip surgery; the super-obese and THR; and whether well fixed stems can remain in infected hips

Aims

Abnormal femoral torsion (FT) is increasingly recognized as an additional cause for femoroacetabular impingement (FAI). It is unknown if in-toeing of the foot is a specific diagnostic sign for increased FT in patients with symptomatic FAI. The aims of this study were to determine: 1) the prevalence and diagnostic accuracy of in-toeing to detect increased FT; 2) if foot progression angle (FPA) and tibial torsion (TT) are different among patients with abnormal FT; and 3) if FPA correlates with FT.

Aims

The aim of this study was to estimate the 90-day risk of revision for periprosthetic femoral fracture associated with design features of cementless femoral stems, and to investigate the effect of a collar on this risk using a biomechanical in vitro model.

Aims

Whether patient-reported pain differs among surgical approaches in total hip arthroplasty (THA) remains unclear. This study’s purposes were to determine differences in pain based on surgical approach (direct anterior (DA) vs posterolateral (PL)) and PL approach incision length.

Aims

Total hip arthroplasty (THA) is gaining popularity as a treatment for displaced femoral neck fractures (FNFs), especially in physiologically younger patients. While THA for osteoarthritis (OA) has demonstrated low complication rates and increased quality of life, results of THA for acute FNF are not as clear. Currently, a THA performed for FNF is included in an institutional arthroplasty bundle without adequate risk adjustment, potentially placing centres participating in fracture care at financial disadvantage. The purpose of this study is to report on perioperative complication rates after THA for FNF compared with elective THA performed for OA of the hip.

Aims

We analyzed the acetabular morphology of Crowe type IV hips using CT data to identify a landmark for the ideal placement of the centre of the acetabular component, as assessed by morphometric geometrical analysis, and its reliability.

Aims

For this retrospective cohort study, patients aged ≤ 30 years (very young) who underwent total hip arthroplasty (THA) were compared with patients aged ≥ 60 years (elderly) to evaluate the rate of revision arthroplasty, implant survival, the indications for revision, the complications, and the patient-reported outcomes.

Aims

The aims of this study were to evaluate the abductor function in moderate and severe slipped capital femoral epiphysis (SCFE), comparing the results of a corrective osteotomy at the base of the femoral neck and osteoplasty with 1) in situ epiphysiodesis for mild SCFE, 2) contralateral unaffected hips, and 3) hips from healthy individuals.

Aims

This study presents the long-term survivorship, risk factors for prosthesis survival, and an assessment of the long-term effects of changes in surgical technique in a large series of patients treated by metal-on-metal (MoM) hip resurfacing arthroplasty (HRA).

After congenital dislocation of the hip, Perthes' disease and some other conditions, the femoral neck may be short and the greater trochanter in a relatively proximal position. Distal transfer of the greater trochanter is an effective and relatively simple operation to correct this deformity. We have reviewed 26 patients (27 hips) at a mean follow-up of eight years. Pain relief and improvement in gait were maintained in 74%, and the poor results were largely due to progression of osteoarthritis. We describe a 'gear-stick' sign of trochanteric impingement, which is useful in the pre-operative assessment of patients

Aims

High-quality clinical research in children’s orthopaedic surgery has lagged behind other surgical subspecialties. This study used a consensus-based approach to identify research priorities for clinical trials in children’s orthopaedics.

Aims

To determine the effect of a change in design of a cementless ceramic acetabular component in fixation and clinical outcome after total hip arthroplasty

1. After exclusion of the well known causes of torsion such as congenital dislocation of the hip, Legg-Perthes' disease, cerebral palsy and congenital talipes equinovarus, examination of 1,320 nearly normal children disclosed an incidence of 13·6 per cent toeing-in or toeing-out. 2. There was a female preponderance of seven to three on presentation decreasing to four to three in uncorrected cases. 3. There was persisting upper femoral torsion of greater than 10 degrees in two-thirds of all cases of toeing-in whether corrected or uncorrected. 4. When correction of toeing-in occurred it took place between four and seven years of age, but mainly at five years. 5. There was a normal angle of anteversion in one-third of children whose toeing-in was not corrected. This suggests the possibility of acetabular maldirection. 6. Uncorrected torsional stresses may play a part in the later development of osteoarthritis

Objectives

Bisphosphonates (BP) are the first-line treatment for preventing fragility fractures. However, concern regarding their efficacy is growing because bisphosphonate is associated with over-suppression of remodelling and accumulation of microcracks. While dual-energy X-ray absorptiometry (DXA) scanning may show a gain in bone density, the impact of this class of drug on mechanical properties remains unclear. We therefore sought to quantify the mechanical strength of bone treated with BP (oral alendronate), and correlate data with the microarchitecture and density of microcracks in comparison with untreated controls.

Aims

Joint-preserving surgery of the hip (JPSH) has evolved considerably and now includes a number of procedures, including arthroscopy, surgical dislocation, and redirectional osteotomies of the femur and acetabulum. There are a number of different factors which lead to failure of JPSH. Consequently, it is of interest to assess the various modes of failure in order to continue to identify best practice and the indications for these procedures.

Objectives

We have previously investigated an association between the genome copy number variation (CNV) and acetabular dysplasia (AD). Hip osteoarthritis is associated with a genetic polymorphism in the aspartic acid repeat in the N-terminal region of the asporin (ASPN) gene; therefore, the present study aimed to investigate whether the CNV of ASPN is involved in the pathogenesis of AD.