Clinico-Pathological Studies on 101 Cases of Leucotomy

Abstract Not Provided

A longitudinal perspective of oral contraceptive use on bone mineral content in adolescents and young adulthood

In females, peak bone mineral velocity is attained at approximately 12 years of age, with bone mass accrual plateauing at around age 18 years. Optimizing bone accrual during growth is believed to prevent osteoporosis and related fracture risk later in life. A number of lifestyle factors such as physical activity and diet are known to influence bone accrual. In addition, estrogen plays a key role and is a main component affected by oral contraceptives (OC). OC are becoming commonly prescribed for females from 12 years of age. Currently, research on the impact of OC use at this age on bone development is equivocal. Therefore, the purpose of this study was to use a longitudinal study to compare bone mass between OC users and non-users during adolescence and young adulthood. One hundred and twenty-one female participants were drawn from the University of Saskatchewan’s Bone Mineral Accrual Study (BMAS). Participants were grouped based on the initiation and duration of OC use. Bone mineral content (BMC) and areal bone mineral density (aBMD) were assessed by Dual Energy X-Ray absorpitometry. Questionnaires were used to ascertain OC use. BMC and aBMD were assessed between groups at each biological age (BA) using ANCOVA (covariates: height, lean mass, physical activity, vitamin D and calcium). BA is the years from peak height velocity (PHV). Individuals who had initiated OC use after 18 years of age were shown to have, at 30 years of age, significantly less total body (TB) BMC than those individuals that had never used OC. In contrast, persons who initiated OC use between the years of 12 and 18 did not have significantly different TB BMC, between the ages of 20 to 30 when compared to non-users and users who initiated after 18 years of age. OC usage between 12 to 18 years significantly improved lumbar (LS) spine BMC 7 years post PHV. It was found aBMD was not significantly influenced by duration of OC use. When OC use began during adolescence there did not appear to be a detrimental effect on TB bone accrual at 30 years. However, it was found that LS accrual was enhanced at approximately 19 years of age, a difference that was no longer evident by 30 years

Conversations that count: Advance Care Planning as preventative medicine

Background: Fundamental to the concept of Advance Care Planning (ACP) is empowering individuals and communities to recognise death as an inevitable part of life.Methods: ACP facilitators and clinical champions in the Canterbury region of New Zealand have been very active in engaging the community. This has occurred through consumer presentations, the creation of specific pages on the Canterbury District Health Board (CDHB) consumer information website (HealthInfo) and support of the National ACP awareness campaign ‘Conversations that Count’.Results: ‘Consumer power’ has been invaluable in driving the uptake of ACP in the CDHB. A survey of 49 GPs in 2015 found many were reluctant to start ACP conversations or felt they ‘did not have time’. The turning point was the realisation that patients are not only wanting but are actively asking to have these important conversations and to create Advance Care Plans (ACPlans). 1200 electronic ACPlans have now now been created in Canterbury, with 80% generated in primary care.The ACP pages on HealthInfo are consistently in the top 20 pages viewed each month which indicates that the community is seeking information and wanting to take control. Uptake and demand for consumer presentations and ‘Conversations that Count’ resources also continues to grow year on year.Discussion: Increased awareness and understanding of ACP gives people the opportunity to think and frame their reasoning, so they are better prepared to have well informed discussions with health care professionals. It helps them be clearer in their mind about their own limits and concerns. It is important for people to consider the question - “what is O.K for me and what isn’t?”. In this context, ACP conversations can be seen as preventative medicine.Patients need to be as well equipped as possible to be active participants in healthcare decisions, especially regarding end of life. Through the ACP process, unnecessary suffering, confusion and conflict can be reduced or prevented and unwanted or  burdensome treatment that is not in line with their goals and priorities can be averted.Conclusion: Valuing and honouring a person’s participation in their health care decision-making is important for all healthcare organisations. Prioritising ACP is an effective way of making this happen.

Can Opioid-Free Anaesthesia Be Personalised? : A Narrative Review

Acknowledgments The authors would like to thank Marc De Kock for his contribution to the conceptualization of this work.Peer reviewedPublisher PD

An afferent hippocampal fiber system in the fornix of the monkey

No Abstract.Peer Reviewedhttp://deepblue.lib.umich.edu/bitstream/2027.42/49987/1/901210205_ftp.pd

Two-stage revision for prosthetic joint infection: predictors of outcome and the role of reimplantation microbiology

We describe rates of success for two-stage revision of prosthetic joint infection (PJI), including data on reimplantation microbiology. Methods: We retrospectively collected data from all the cases of PJI that were managed with two-stage revision over a 4 year period. Patients were managed with an antibiotic-free period before reimplantation, in order to confirm, clinically and microbiologically, that infection was successfully treated. Results: One hundred and fifty-two cases were identified. The overall success rate (i.e. retention of the prosthesis over 5.75 years of follow-up) was 83%, but was 89 % for first revisions and 73 % for re-revisions [hazard ratio2.9, 95 % confidence interval (CI) 1.2–7.4, P0.023]. Reimplantation microbiology was frequently positive (14%), but did not predict outcome (hazard ratio1.3, 95 % CI 0.4–3.7, P0.6). Furthermore, most unplanned debridements following the first stage were carried out before antibiotics were stopped (25 versus 2 debridements). Conclusions: We did not identify evidence supporting the use of an antibiotic-free period before reimplantation and routine reimplantation microbiology. Re-revision was associated with a significantly worse outcome

Pelvic position and movement during hip replacement

The orientation of the acetabular component is influenced not only by the orientation at which the surgeon implants the component, but also the orientation of the pelvis at the time of implantation. Hence, the orientation of the pelvis at set-up and its movement during the operation, are important. During 67 hip replacements, using a validated photogrammetric technique, we measured how three surgeons orientated the patient's pelvis, how much the pelvis moved during surgery, and what effect these had on the final orientation of the acetabular component. Pelvic orientation at set-up, varied widely (mean (± 2, standard deviation (sd))): tilt 8° (2sd ± 32), obliquity -4° (2sd ± 12), rotation -8° (2sd ± 14). Significant differences in pelvic positioning were detected between surgeons (p < 0.001). The mean angular movement of the pelvis between set-up and component implantation was 9° (sd 6). Factors influencing pelvic movement included surgeon, approach (posterior > lateral), procedure (hip resurfacing > total hip replacement) and type of support (p < 0.001). Although, on average, surgeons achieved their desired acetabular component orientation, there was considerable variability (2sd ± 16) in component orientation. We conclude that inconsistency in positioning the patient at set-up and movement of the pelvis during the operation account for much of the variation in acetabular component orientation. Improved methods of positioning and holding the pelvis are required

One hundred and twelve infected arthroplasties treated with ‘DAIR’ (debridement, antibiotics and implant retention): antibiotic duration and outcome

OBJECTIVES: We describe treatment failure rates by antibiotic duration for prosthetic joint infection (PJI) managed with debridement, antibiotics and implant retention (DAIR). METHODS: We retrospectively collected data from all the cases of PJI that were managed with DAIR over a 5 year period. Surgical debridement, microbiological sampling, early intravenous antibiotics and prolonged oral follow-on antibiotics were used. RESULTS: One hundred and twelve cases of PJI were identified. Twenty infections (18%) recurred during a mean follow-up of 2.3 years. The mean duration of antibiotic use was 1.5 years. Failure was more common after arthroscopic debridement, for previously revised joints and for Staphylococcus aureus infection. There were 12 failures after stopping antibiotics and 8 while on antibiotics [hazard ratio (HR) = 4.3, 95% confidence interval (CI) 1.4-12.8, P = 0.01]. However, during the first 3 months of follow-up, there were eight failures after stopping antibiotics and two while on antibiotics (HR = 7.0, 95% CI 1.5-33, P = 0.015). The duration of antibiotic therapy prior to stopping did not predict outcome. CONCLUSIONS: PJI may be managed by DAIR. The risk of failure with this strategy rises after stopping oral antibiotics, but lengthening antibiotic therapy may simply postpone, rather than prevent, failure

Pelvic position and movement during hip replacement

The orientation of the acetabular component is influenced not only by the orientation at which the surgeon implants the component, but also the orientation of the pelvis at the time of implantation. Hence, the orientation of the pelvis at set-up and its movement during the operation, are important. During 67 hip replacements, using a validated photogrammetric technique, we measured how three surgeons orientated the patient's pelvis, how much the pelvis moved during surgery, and what effect these had on the final orientation of the acetabular component. Pelvic orientation at set-up, varied widely (mean (± 2, standard deviation (sd))): tilt 8° (2sd ± 32), obliquity -4° (2sd ± 12), rotation -8° (2sd ± 14). Significant differences in pelvic positioning were detected between surgeons (p lateral), procedure (hip resurfacing > total hip replacement) and type of support (p < 0.001). Although, on average, surgeons achieved their desired acetabular component orientation, there was considerable variability (2sd ± 16) in component orientation. We conclude that inconsistency in positioning the patient at set-up and movement of the pelvis during the operation account for much of the variation in acetabular component orientation. Improved methods of positioning and holding the pelvis are required