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Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_31 | Pages 53 - 53
1 Aug 2013
Jensen C Gupta S Sprowson A Chambers S Inman D Jones S Aradhyula N Reed M
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Currently, the cement being used for hemiarthroplasties and total hip replacements by the authors and many other surgeons in the UK is Palacos® (containing 0.5g Gentamicin). Similar cement, Copal® (containing 1g Gentamicin and 1g Clindamycin) has been used in revision arthroplasties, and has shown to be better at inhibiting bacterial growth and biofilm formation. We aim to investigate the effect on SSI rates of doubling the gentamicin dose and adding a second antibiotic (clindamycin) to the bone cement in hip hemiarthroplasty.

We randomised 848 consecutive patients undergoing cemented hip hemiarthroplasty for fractured NOF at one NHS trust (two sites) into two groups: Group I, 464 patients, received standard cement (Palacos®) and Group II, 384 patients, received high dose, double antibiotic-impregnated cement (Copal®). We calculated the SSI rate for each group at 30 days post-surgery. The patients, reviewers and statistician were blinded as to treatment group.

The demographics and co-morbid conditions (known to increase risk of infection) were statistically similar between the groups. The combined superficial and deep SSI rates were 5 % (20/394) and 1.7% (6/344) for groups I and II respectively (p=0.01). Group I had a deep infection rate 3.3 %(13/394) compared to 1.16% (4/344) in group II (p=0.082). Group I had a superficial infection rate 1.7 % (7/394) compared to 0.58% (2/344) in group II (p=0.1861). 33(4%) patients were lost to follow up, and 77 (9%) patients were deceased at the 30 day end point. There was no statistical difference in the 30 day mortality, C. difficile infection, or the renal failure rates between the two groups.

Using high dose double antibiotic-impregnated cement rather than standard low dose antibiotic-impregnated cement significantly reduced the SSI rate (1.7% vs 5%; p=0.01) after hip hemiarthroplasty for fractured neck of femur in this prospective randomised controlled trial.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_31 | Pages 21 - 21
1 Aug 2013
Hunter A Baird E Reed M
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Procedure Based Assessments (PBAs) are one type of Workplace Based Assessment (WBA) introduced recently to orthopaedic training in the UK. They play an increasing role in the assessment of a trainee's surgical competence.

The study aims to determine the most valuable aspects of a PBA to a trainee, and the changes trainees suggest to improving the use of PBAs.

A link to an online questionnaire was sent by email via the eLogbook system to all orthopaedic trainees in the UK with a National Training Number (NTN). The free text responses were coded and categorised. Analysis of results was conducted using the online survey software and Microsoft Excel.

Of 668 responses, 616 met the inclusion criteria, making a response rate of 66% of all trainees with a NTN in the UK. There was a broad, representative spread of seniority and of geographical location. Trainees found the verbal feedback gained from their trainer to be most valuable (47%), followed by the assessment of competence (21%). Trainees identified the PBA form itself as the most important area for change (52.4%). This included increased numbers of PBAs (17.5%), more specific to the procedure (8.6%), more user friendly (15%), more levels of competence (4.5%) and a generic PBA (3.4%). Further suggestions included changing the role of PBAs, with 8.2% suggesting discontinuing their use entirely. Improving trainer investment in the use of PBA was also highlighted.

Trainees value PBAs to gain formal feedback more than their use as evidence of competence in a procedure. There are a number of changes suggested by trainees that could improve the use and effectiveness of PBAs, and we have incorporated these into recommendations made by the British Orthopaedic Trainees’ Association, which should inform the debate on the further development of this assessment tool, and on WBAs in general.


The Journal of Bone & Joint Surgery British Volume
Vol. 84-B, Issue 1 | Pages 137 - 140
1 Jan 2002
Piska M Yang L Reed M Saleh M

An innovative Kirschner (K-) wire point was developed and compared in fresh pig femora in terms of drilling efficiency and temperature elevation with the trochar and diamond points currently used in clinical practice. The tips of thermal couples were machined to the defined geometry and the temperature measured during drilling. Using the same drill speed (rev/min) and feed rate, the new K-wire point produced the lowest thrust force and torque as measured by a Kistler dynamometer. Drill point temperatures were highest with the trochar geometry (129 ± 6°C), followed by the diamond (98 ± 7°C). The lowest temperatures were recorded with the Medin K-wire (66 ± 2°C). On repeated drilling it could be used for up to 30 holes before reaching the less satisfactory drill performance of the diamond tip. The new K-wire provides a better alternative as it requires less effort for insertion, generates less heat and may be re-used.