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Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_8 | Pages 15 - 15
1 Jun 2015
Poole W Guthrie H Wilson D Freeman R Bellringer S Guryel E Nicol S
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Distal femoral fracture fixation has historically been associated with high rates of reoperation because of mal-union, non-union and implant failure. We hypothesised that recent advances in distal femoral locking plate design and material along with an improved understanding of biomechanical principles would improve outcome. In a 5-year retrospective study utilising electronic patient records and serial radiographs (including recall by letter where there was no radiological evidence of union) we identified a series of 129 distal femoral fractures treated with modern locking plates in 123 patients. The majority were female (80%), elderly (mean 73 years) and infirm (72/123 ASA 3 or more). A consultant performed the operation in 67% of cases. 49% were followed to radiological union, while 25% died within the follow up period. Reoperation rate for implant failure was 4%, with all failures occurring early (within 5 months). Our follow up correlates with the infirm elderly population concerned. Our cohort shares many similarities with hip fracture patients and we propose that this group should receive equal surgical priority and optimum management also be rewarded by enhanced tariffs. Modern locking plates used in combination with the correct biomechanical principles are performing well in our centre.


Orthopaedic Proceedings
Vol. 97-B, Issue SUPP_8 | Pages 10 - 10
1 Jun 2015
Lee C King C Freeman R Edmondson M Guthrie H
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The “Golden Patient” is suitability worked up to be the first theatre case of the day; the aim being to improve theatre efficiency. A previous audit of theatre activity demonstrated that the average knife to skin time being achieved across 3 daily trauma lists was 10.12. Over 2-months we introduced a Golden Patient Pathway and completed the audit cycle. The pathway involved a checklist to ensure the completion of essential clinical tasks for each designated golden patient. Activities from 74 trauma theatre cases were reviewed. 47 golden patients remained first whilst 27 were deferred for reasons including non-suitability for golden patient status and emergent cases given clinical priority. The average theatre call time was 24 minutes earlier and the average knife-to-skin time was 15 minutes earlier than non-golden patients during the re-audit. However, when compared to the initial audit the knife-to-skin time had only improved by 3 minutes. Reasons effecting theatre efficiency are multifactorial and other organisational changes had occurred between the audits. This study demonstrates that while the Golden Patient Pathway can improve theatre start times it is not the whole solution. Communication, anaesthetic job plans, portering arrangements, equipment storage and theatre staffing also need to be reviewed.


Orthopaedic Proceedings
Vol. 96-B, Issue SUPP_9 | Pages 5 - 5
1 May 2014
Phadnis J Templeton-Ward O Guthrie H
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Implementation of the World Health Organisation checklists have reduced errors, however, the impact of pre-operative briefings on adverse events has not been assessed. A prospective case control study assessing the association between pre-operative briefings and minor, potentially major and major adverse events was performed in two phases. Phase one involved prospective data collection for trauma and orthopaedic lists over 2 weeks. Changes were implemented and following this, the study was repeated (phase two). 41 lists were audited during phase one and 47 lists in phase two. Adequate pre-operative briefings were performed in 10/41 lists (24%) in phase one. There was a significant association between the occurrences of intra-operative adverse events (n=37) when a briefing was not performed (p=<0.01), and when a briefing was performed incompletely (p=0.01). In phase two, after staff re-education and policy change, briefings were found to be adequate in 38/47 lists (81%) with the occurrence of only three minor adverse events. Team familiarity also improved significantly (p=0.02). Inadequate pre-operative briefings are associated with increased minor adverse events and are detrimental to team familiarity. On the basis of our findings we recommend that all surgical units perform pre-operative briefings.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_26 | Pages 15 - 15
1 Jun 2013
Guthrie H Martin K Taylor C Spear A Clasper J Watts S
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A randomised controlled trial was conducted using a rabbit model of a complex contaminated extremity war wound. Compared to saline soaked gauze dressings Inadine (iodine) and Acticoat (nanocrystalline silver) had significantly lower levels of Staphylococcus aureus after 7 days while Activon Tulle (Manuka honey) had significantly higher levels.

Molecular level analysis of the wound was conducted. Plasma cytokines of interest were assayed using ELISA and levels of expression of relevant tissue genes measured using PCR following RNA extraction.

Appreciable levels of Interleukins 4 and 6 and Tumour Necrosis Factor-α were identified in plasma with significantly higher levels of IL-4 and TNFα detected in the Activon Tulle group. In tissue TNFα, Matrix metalloproteinase-3 and the ratio of Matrix metalloproteinase-9 to Tissue Inhibitor of Matrix metalloproteinase-1 were significantly higher in tissue injured limbs than the uninjured limbs with no significant differences between groups.

Interpretation of these results is challenging. IL-4 has been associated with transition from pathological inflammation to repair and TNFα with impaired healing. However, Activon Tulle had significantly higher levels of S. aureus and we found no differences in observational, histology, haematology or tissue gene expression outcomes over 7 days which would correlate with these molecular biology results.


Orthopaedic Proceedings
Vol. 95-B, Issue SUPP_8 | Pages 8 - 8
1 Feb 2013
Guthrie H Martin K Taylor C Spear A Clasper J Watts S
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A 7-day randomised controlled pre-clinical trial utilising an existing extremity war wound model compared the efficacy of saline soaked gauze to commercially available dressings. The Flexor Carpi Ulnaris of anaesthetised rabbits was exposed to high-energy trauma using a computer-controlled jig and inoculated with 106Staphylococcus aureus 3 hours prior to application of dressing. Quantitative microbiological assessment demonstrated reduced bacterial counts in INADINE (Iodine) and ACTICOAT (Nanocrystalline Silver) groups and an increase in ACTIVON TULLE (Manuka Honey) group (2-way ANOVA p<0.05).

Clinical observations were made throughout the study. Haematology and plasma cytokines were analysed at intervals. Post-mortem histopathology included subjective semi-quantitative assessment of pathology severity using light microscopy to grade muscle injury and lymph node activation. Tissue samples were also examined using scanning electron microscopy (SEM).

There were no bacteraemias, abscesses, purulent discharge or evidence of contralateral axillary lymph node activation. There were no significant differences in animal behaviour, weight change, maximum body temperature or white blood cell count elevation nor in pathology severity in muscle or lymph nodes (Kruskal-Wallis). There was no evidence of bacterial penetration or biofilm formation on SEM. Interleukin-4 and Tumour Necrosis Factor α levels were significantly higher in the ACTIVON TULLE group (1-way ANOVA p<0.05).

This time-limited study demonstrated a statistically significant reduction in Staphylococcus aureus counts in wounds dressed with INADINE and ACTICOAT and an increase in wounds dressed with ACTIVON TULLE. There was no evidence that any of these dressings cause harm but nor have we established any definite clinical advantage associated with the use of the dressings tested in this study.


A randomised controlled pre-clinical trial utilising an existing extremity war wound model compared the efficacy of saline soaked gauze to commercial dressings. The Flexor Carpi Ulnaris of anaesthetised New Zealand rabbits was exposed to high-energy trauma using computer-controlled jig and inoculated with 106Staphylococcus aureus 3 hours prior to application of dressing. After 7 days the animals were culled. Quantitative microbiological assessment of post-mortem specimens demonstrated statistically significantly reduced S aureus counts in groups treated with iodine or silver based dressings (2-way ANOVA p< 0.05).

Clinical observations and haematology were performed during the study. Histopathological assessment of post-mortem muscle specimens included image analysis of digitally scanned haematoxylin and eosin stained tissue sections and subjective semi-quantitative assessment of pathology severity using light microscopy to grade muscle injury and lymph node activation. Tissue samples were also examined using scanning electron microscopy to determine the presence of bacteria and biofilm formation within the injured muscle. Non-parametric data were compared using Kruskal-Wallis.

There were no bacteraemias, significantly raised white cell counts, abscesses, purulent discharge or evidence of contralateral axillary lymph node activation. All injured muscle specimens showed evidence of haemorrhage, inflammatory cell infiltration and fibrosis. All ipsilateral axillary lymph nodes were activated. There were no significant differences in the amount of muscle loss, size of the activated lymph nodes or in subjective semi-quantitative scoring criteria for muscle injury or lymph node activation. There was no evidence of bacterial penetration or biofilm formation.

This study demonstrated statistically significant reductions in Staphylococcus aureus counts associated with iodine and silver dressings, and no evidence that these dressings cause harm. This was a time-limited study which was primarily powered to detect reduction in bacterial counts; however, there was no significant variation in secondary outcome measures of local or systemic infection over 7 days.


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_III | Pages 312 - 312
1 Jul 2011
Owens R Guthrie H Gougoulias N Sakellariou A
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Background: Morton’s Neuroma is most likely a mechanically induced degenerative neuropathy, presenting as forefoot pain.

Methods: The authors retrospectively reviewed clinical notes, imaging and histology from 71 consecutive patients (75 feet) treated operatively for Morton’s Neuroma between January 2006 and April 2009 and a control group of 20 patients (20 feet) undergoing MRI for other forefoot pathology. 7 feet were excluded from the surgical group due to recurrent disease or missing data.

Results: 84% of the surgical group were female. Mean age was 52. 97.4% of the surgical group presented with pain. 50% described pain in the plantar aspect of the forefoot and 85% reported that their pain was worse in shoes. Web space tenderness was positive in 95%, foot squeeze test 88%, plantar percussion 61% and toe tip sensation deficit 67%. Any two tests were positive in 92% of this group. In the control group any two tests were positive in only 39% – this difference was statistically significant (p< 0.0001 chi-squared test). MRI identified a neuroma in 97% of the surgical group (mean size 8mm) and 50% of the control group (mean size 6mm). 68% were in the 3rd web space; the remainder were in the 2nd web space. Histology confirmed neuroma in 99%.

Discussion: This cohort is larger than any other published series and is further strengthened by both the consistency of clinical testing and the independence of radiological and histological assessment.

Conclusion: We found that diagnosis of Morton’s neuroma was accurate. MRI correctly identified the neuromata in 97% and at least two clinical tests were present in 92%.


Orthopaedic Proceedings
Vol. 93-B, Issue SUPP_I | Pages 53 - 53
1 Jan 2011
Guthrie H Edwards D Fetherston C McMaster J
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The Orthopaedic Competence Assessment Project (OCAP) is a validated system for assessment of competence in orthopaedics. OCAP materials are increasingly used in the NHS. Defence Orthopaedic trainees now deploy for 6 weeks on Operation Herrick.

The senior author used OCAP induction and assessment materials with the 3 three trainees assigned to him at the United Kingdom Medical Facility at Camp Bastion, Afghanistan. Mini-CV and ‘Military Trauma’ Knowledge and Procedure Profiles were provided and learning agreements signed at an initial meeting. Interim and final meetings took place to review progress and update Knowledge and Procedure Profiles. Procedure Based assessments (PBAs) were also attempted during the attachments.

Afghanistan was ideal for training due to a significant trauma caseload, close one-on-one supervision and no working time directives. The use of induction and assessment materials with which trainer and trainees were already familiar gave structure and focus to training on deployment and allows the benefit of the deployment to be demonstrated.