Aims. Our primary aim was to establish the proportion of female orthopaedic consultants who perform arthroplasty via cases submitted to the National Joint Registry (NJR), which covers England, Wales, Northern Ireland, the Isle of Man, and Guernsey. Secondary aims included comparing time since specialist registration, private practice participation, and number of hospitals worked in between male and
Aims. The number of females within the speciality of trauma and orthopaedics (T&O) is increasing. The aim of this study was to identify: 1) current attitudes and behaviours of UK
Orthopaedics has been left behind in the worldwide drive towards diversity and inclusion. In the UK, only 7% of orthopaedic consultants are female. There is growing evidence that diversity increases innovation as well as patient outcomes. This paper has reviewed the literature to identify some of the common issues affecting
Introduction. The medical field has long held largely anecdotal beliefs that polymethyl methacrylate (PMMA) vapors are dangerous to a growing fetus, and as such, women who are pregnant should avoid exposure. This study investigates the perceptions of
Sufficient primary stability of the acetabular cup is essential for stable osseous integration of the implant after total hip arthroplasty. By means of under-reaming the cavities press-fit cups gain their primary stability in the acetabular bone stock. These metal-backed cups are inserted intra-operatively using an impact hammer. The aim of this experimental study was to obtain the forces exerted by the hammer both in-vivo and in-vitro as well as to determine the resulting primary stability of the cups in-vitro. Two different artificial bone models were applied to simulate osteoporotic and sclerotic bone. Polymeth-acrylamid (PMI, ROHACELL 110 IG, Gaugler &
Lutz, Germany) was used as an osteoporotic bone substitute, whereas a composite model made of a PMI-Block and a 4 mm thick (cortical) Polyvinyl chloride (PVC) layer (AIREX C70.200, Gaugler &
Lutz, Germany) was deployed to simulate sclerotic bone. In all artificial bone blocks cavities were reamed for a press-fit cup (Trident PSL, Size 56mm, Stryker, USA) using the original surgical instrument. The impactor of the cup was equipped with a piezoelectric ring sensor (PCB Piezotronics, Germany). Using the standard surgical hammer (1.2kg) the acetabular cups were implanted into the bone substitute material by a male (95kg) and a
Introduction: To obtain secondary implant stability of acetabular press-fit cups, sufficient primary stability is essential. The aim of this study was to investigate the influence of cup insertion force and bone quality on the primary implant stability. Materials and Methods: The experiments were carried out using two commercially available press-fit acetabular cups (Trident PSL, Stryker und EP-FIT PLUS, PLUS Ortho-peadics), comparable in design and with identical diameters, which were inserted axially into artificial bone by a female and a male surgeon. Two bone substitute material models were used. To imitate osteoporotic bone, a PMI-model (ROHACELL 110 IG, Gaugler &
Lutz oHG) was employed. To simulate sclerotic bone, a composite-model made of a PMI-bloc with a 4 mm thick PVC-layer (AIREX C70.200, Gaugler &
Lutz oHG) was used. The cups were inserted using an insertion device, equipped with a force sensor, and an 1100 g surgical hammer. Additionally, all experiments were carried out using a dynamic testing machine (25 kN, Instron) utilising insertion forces of 4.0 kN and 8.0 kN respectively. Primary implant stability was determined via lever-out tests using a static universal testing machine (Z050, Zwick/Roell). Results: On average an insertion force of 4.8 kN (female) and 7.0 kN (male) using the PMI-model and 6.2 kN (female) and 7.5 kN (male) for the composite-model was assessed for the two different surgeons. The machined forces averaged 3.8 kN and 7.9 kN. Lever-out-moments of 17 Nm were determined for both the PMI- and composite-model for the