bluuebunny/crossref_metadata_2025_split huggingface dataset:
Cognitive–behavioural therapy v. usual care in recurrent depression
Authors: Conradi Henk Jan , de Jonge Peter , Ormel Johan 
Published: November 2008

SummaryWe examined in a primary care sample whether acute-phase cognitive–behavioural therapy (CBT) would be more effective than usual care for patients with multiple prior episodes of depression. Depression outcome was based on a 3-monthly administered Beck Depression Inventory (BDI) during a 2-year follow-up. We confirmed that in patients with four or more prior episodes, CBT outperformed usual care by four points on the BDI, but not in patients with three or fewer prior episodes. Subsequent analyses suggested that CBT may be able to tackle cognitive problems related to rumination in patients with recurrent depression.
Early intervention for adolescents with borderline personality disorder using cognitive analytic therapy: randomised controlled trial
Authors: Chanen Andrew M. , Jackson Henry J. , McCutcheon Louise K. , Jovev Martina , Dudgeon Paul , Yuen Hok Pan , Germano Dominic , Nistico Helen , McDougall Emma , Weinstein Caroline , Clarkson Verity , McGorry Patrick D. 
Published: November 2008

BackgroundNo accepted intervention exists for borderline personality disorder presenting in adolescence.AimsTo compare the effectiveness of up to 24 sessions of cognitive analytic therapy (CAT) or manualised good clinical care (GCC) in addition to a comprehensive service model of care.MethodIn a randomised controlled trial, CAT and GCC were compared in out-patients aged 15–18 years who fulfilled two to nine of the DSM–IV criteria for borderline personality disorder. We predicted that, compared with the GCC group, the CAT group would show greater reductions in psychopathology and parasuicidal behaviour and greater improvement in global functioning over 24 months.ResultsEighty-six patients were randomised and 78 (CAT n=41; GCC n=37) provided follow-up data. There was no significant difference between the outcomes of the treatment groups at 24 months on the pre-chosen measures but there was some evidence that patients allocated to CAT improved more rapidly. No adverse effect was shown with either treatment.ConclusionsBoth CAT and GCC are effective in reducing externalising psychopathology in teenagers with sub-syndromal or full-syndrome bipolar personality disorder. Larger studies are required to determine the specific value of CAT in this population.
Pregnancy loss and psychiatric disorders in young women: an Australian birth cohort study
Authors: Dingle Kaeleen , Alati Rosa , Clavarino Alexandra , Najman Jake M. , Williams Gail M. 
Published: November 2008

BackgroundRecent evidence has linked induced abortion with later adverse psychiatric outcomes in young women.AimsTo examine whether abortion or miscarriage are associated with subsequent psychiatric and substance use disorders.MethodA sample (n=1223) of women from a cohort born between 1981 and 1984 in Australia were assessed at 21 years for psychiatric and substance use disorders and lifetime pregnancy histories.ResultsYoung women reporting a pregnancy loss had nearly three times the odds of experiencing a lifetime illicit drug disorder (excluding cannabis): abortion odds ratio (OR)=3.6 (95% CI 2.0–6.7) and miscarriage OR=2.6 (95% CI 1.2–5.4). Abortion was associated with alcohol use disorder (OR=2.1, 95% CI 1.3–3.5) and 12-month depression (OR=1.9, 95% CI 1.1–3.1).ConclusionsThese findings add to the growing body of evidence suggesting that pregnancy loss per se, whether abortion or miscarriage, increases the risk of a range of substance use disorders and affective disorders in young women.
Abortion and mental health disorders: evidence from a 30-year longitudinal study
Authors: Fergusson David M. , Horwood L. John , Boden Joseph M. 
Published: November 2008

BackgroundResearch on the links between abortion and mental health has been limited by design problems and relatively weak evidence.AimsTo examine the links between pregnancy outcomes and mental health outcomes.MethodData were gathered on the pregnancy and mental health history of a birth cohort of over 500 women studied to the age of 30.ResultsAfter adjustment for confounding, abortion was associated with a small increase in the risk of mental disorders; women who had had abortions had rates of mental disorder that were about 30% higher. There were no consistent associations between other pregnancy outcomes and mental health. Estimates of attributable risk indicated that exposure to abortion accounted for 1.5% to 5.5% of the overall rate of mental disorders.ConclusionsThe evidence is consistent with the view that abortion may be associated with a small increase in risk of mental disorders. Other pregnancy outcomes were not related to increased risk of mental health problems.
Invited commentaries on… Abortion and mental health disorders
Authors: Casey Patricia , Oates Margaret , Jones Ian , Cantwell Roch 
Published: November 2008

SummaryThe finding that induced abortion is a risk factor for subsequent psychiatric disorder in some women raises important clinical and training issues for psychiatrists. It also highlights the necessity for developing evidence-based interventions for these women. P.C. / Evidence suggesting a modest increase in mental health problems after abortion does not support the prominence of psychiatric issues in the abortion debate, which is primarily moral and ethical not psychiatric or scientific. M.O. et al.
Disc calibration for digital templating in hip replacement
Authors: Kulkarni A. , Partington P. , Kelly D. , Muller S. 
Published: November 2008

Digital radiography is becoming widespread. Accurate pre-operative templating of digital images of the hip traditionally involves positioning a calibration object at its centre. This can be difficult and cause embarrassment. We have devised a method whereby a planar disc placed on the radiographic cassette accounts for the expected magnification. Initial examination of 50 pelvic CT scans showed a mean hip centre distance of 117 mm (79 to 142) above the gluteal skin. Further calculations predicted that a disc of 37.17 mm diameter, placed on the cassette, would appear identical to a 30 mm sphere placed at the level of the centre of the hip as requested by our templating software. We assessed accuracy and reproducibility by ‘reverse calibration’ of 20 radiographs taken three months after hip replacement using simultaneous sphere and disc methods, and a further 20 with a precision disc of accurate size. Even when variations in patient size were ignored, the disc proved more accurate and reliable than the sphere. The technique is reliable, robust, cost effective and acceptable to patients and radiographers. It can easily be used in any radiography department after a few simple calculations and manufacture of appropriately-sized discs.
Minimally-invasive treatment of three- and four-part fractures of the proximal humerus in elderly patients
Authors: Bogner R. , Hübner C. , Matis N. , Auffarth A. , Lederer S. , Resch H. 
Published: November 2008

The surgical treatment of three- and four-part fractures of the proximal humerus in osteoporotic bone is difficult and there is no consensus as to which technique leads to the best outcome in elderly patients. Between 1998 and 2004 we treated 76 patients aged over 70 years with three- or four-part fractures by percutaneous reduction and internal fixation using the Humerusblock. A displacement of the tuberosity of > 5 mm and an angulation of > 30° of the head fragment were the indications for surgery. Of the patients 50 (51 fractures) were available for follow-up after a mean of 33.8 months (5.8 to 81). The absolute, age-related and side-related Constant scores were recorded. Of the 51 fractures, 46 (90.2%) healed primarily. Re-displacement of fragments or migration of Kirschner wires was seen in five cases. Necrosis of the humeral head developed in four patients. In three patients a secondary arthroplasty had to be performed, in two because of re-displacement and in one for necrosis of the head. There was one case of deep infection which required a further operation and one of delayed healing. The mean Constant score of the patients with a three-part fracture was 61.2 points (35 to 87) which was 84.9% of the score for the non-injured arm. In four-part fractures it was 49.5 points (18 to 87) or 68.5% of the score for the non-injured arm. The Humerusblock technique can provide a comfortable and mobile shoulder in elderly patients and is a satisfactory alternative to replacement and traditional techniques of internal fixation.
European validation of the Vancouver classification of periprosthetic proximal femoral fractures
Authors: Rayan F. , Dodd M. , Haddad F. S. 
Published: November 2008

The Vancouver classification has been shown by its developers to be a valid and reliable method for categorising the configuration of periprosthetic proximal femoral fractures and for planning their management. We have re-validated this classification system independently using the radiographs of 30 patients with periprosthetic fractures. These were reviewed by six experienced consultant orthopaedic surgeons, six trainee surgeons and six medical students in order to assess intra- and interobserver reliability and reproducibility. Each observer read the radiographs on two separate occasions. The results were subjected to weighted kappa statistical analysis. The respective kappa values for interobserver agreement were 0.72 and 0.74 for consultants, 0.68 and 0.70 for trainees on the first and second readings of the radiographs and 0.61 for medical students. The intra-observer agreement for the consultants was 0.64 and 0.67, for the trainees 0.61 and 0.64, and for the medical students 0.59 and 0.60 for the first and second readings, respectively. The validity of the classification was studied by comparing the pre-operative radiological findings within B subgroups with the operative findings. This revealed agreement for 77% of these type-B fractures, with a kappa value of 0.67. Our data confirm the reliability and reproducibility of this classification system in a European setting and for inexperienced staff. This is a reliable system which can be used by non-experts, between centres and across continents.
One stage uncemented revision of infected total hip replacement using cancellous allograft bone impregnated with antibiotics
Authors: Winkler H. , Stoiber A. , Kaudela K. , Winter F. , Menschik F. 
Published: November 2008

Infection of a total hip replacement (THR) requires component removal and thorough local debridement. Usually, long-term antibiotic treatment in conjunction with a two-stage revision is required. This may take several months. One-stage revision using antibiotic-loaded cement has not gained widespread use, although the clinical and economic advantages are obvious. Allograft bone may be impregnated with high levels of antibiotics, and in revision of infected THR, act as a carrier providing a sustained high local concentration. We performed 37 one-stage revision of infected THRs, without the use of cement. There were three hips which required further revision because of recurrent infection, the remaining 34 hips (92%) stayed free from infection and stable at a mean follow-up of 4.4 years (2 to 8). No adverse effects were identified. Incorporation of bone graft was comparable with unimpregnated grafts. Antibiotic-impregnated allograft bone may enable reconstruction of bone stock, insertion of an uncemented implant and control of infection in a single operation in revision THR for infection.
A trabecular metal tibial component in total knee replacement in patients younger than 60 years
Authors: Henricson A. , Linder L. , Nilsson K. G. 
Published: November 2008

We compared the performance of uncemented trabecular metal tibial components in total knee replacement with that of cemented tibial components in patients younger than 60 years over two years using radiostereophotogrammetric analysis (RSA). A total of 22 consecutive patients (mean age 53 years, 33 to 59, 26 knees) received an uncemented NexGen trabecular metal cruciate-retaining monobloc tibial component and 19 (mean 53 years, 44 to 59, 21 knees) a cemented NexGen Option cruciate-retaining modular tibial component. All the trabecular metal components migrated during the initial three months and then stabilised. The exception was external rotation, which did not stabilise until 12 months. Unlike conventional metal-backed implants which displayed a tilting migration comprising subsidence and lift-off from the tibial tray, most of the trabecular metal components showed subsidence only, probably due to the elasticity of the implant. This pattern of subsidence is regarded as being beneficial for uncemented fixation.
The use of a vascularised periosteal patch onlay graft in the management of nonunion of the proximal scaphoid
Authors: Thompson N. W. , Kapoor A. , Thomas J. , Hayton M. J. 
Published: November 2008

We describe the use of a vascularised periosteal patch onlay graft based on the 1,2 intercompartmental supraretinacular artery in the management of 11 patients (ten men, one woman) with chronic nonunion involving the proximal third of the scaphoid. The mean age of the patients was 31 years (21 to 45) with the dominant hand affected in eight. Six of the patients were smokers and three had undergone previous surgery to the scaphoid. All of the proximal fragments were avascular. The presence of union was assessed using longitudinal axis CT. Only three patients progressed to union of the scaphoid and four required a salvage operation for a symptomatic nonunion. The remaining four patients with a persistent nonunion are asymptomatic with low pain scores, good grip strength and a functional range of wrist movement. Although this technique has potential technical advantages over vascularised pedicled bone grafting, the rate of union has been disappointing and we do not recommend it as a method of treatment.
Bone formation in a carbonate-substituted hydroxyapatite implant is inhibited by zoledronate
Authors: Spence G. , Phillips S. , Campion C. , Brooks R. , Rushton N. 
Published: November 2008

Carbonate-substituted hydroxyapatite (CHA) is more osteoconductive and more resorbable than hydroxyapatite (HA), but the underlying mode of its action is unclear. We hypothesised that increased resorption of the ceramic by osteoclasts might subsequently upregulate osteoblasts by a coupling mechanism, and sought to test this in a large animal model. Defects were created in both the lateral femoral condyles of 12 adult sheep. Six were implanted with CHA granules bilaterally, and six with HA. Six of the animals in each group received the bisphosphonate zoledronate (0.05 mg/kg), which inhibits the function of osteoclasts, intra-operatively. After six weeks bony ingrowth was greater in the CHA implants than in HA, but not in the animals given zoledronate. Functional osteoclasts are necessary for the enhanced osteoconduction seen in CHA compared with HA.
Early outcome of hip arthroscopy for femoroacetabular impingement
Authors: Bardakos N. V. , Vasconcelos J. C. , Villar R. N. 
Published: November 2008

There is a known association between femoroacetabular impingement and osteoarthritis of the hip. What is not known is whether arthroscopic excision of an impingement lesion can significantly improve a patient’s symptoms.This study compares the results of hip arthroscopy for cam-type femoracetabular impingement in two groups of patients at one year. The study group comprised 24 patients (24 hips) with cam-type femoroacetabular impingement who underwent arthroscopic debridement with excision of their impingement lesion (osteoplasty). The control group comprised 47 patients (47 hips) who had arthroscopic debridement without excision of the impingement lesion. In both groups, the presence of femoroacetabular impingement was confirmed on pre-operative plain radiographs. The modified Harris hip score was used for evaluation pre-operatively and at one-year. Non-parametric tests were used for statistical analysis.A tendency towards a higher median post-operative modified Harris hip score was observed in the study group compared with the control group (83 vs 77, p = 0.11). There was a significantly higher proportion of patients in the osteoplasty group with excellent/good results compared with the controls (83% vs 60%, p = 0.043). Additional symptomatic improvement may be obtained after hip arthroscopy for femoroacetabular impingement by the inclusion of femoral osteoplasty.
Midterm survival of a contemporary modular total knee replacement
Authors: Dalury D. F. , Barrett W. P. , Mason J. B. , Goldstein W. M. , Murphy J. A. , Roche M. W. 
Published: November 2008

This retrospective study evaluated the midterm clinical and radiographic outcomes of a second-generation total knee replacement system. In a multicentre consecutive series of 1512 patients, 1970 knees were treated with the PFC Sigma knee system (Depuy, Warsaw, Indiana). The patients were reviewed for functional outcome, and underwent independent radiographic evaluation at a mean follow-up of 7.3 years (5 to 10). A total of 40 knees (2%) required revision, 17 (0.9%) for infection. The incidence of osteolysis was 2.2%. The ten-year survival with revision for any cause other than infection as the endpoint was 97.2% (95% CI 95.4 to 99.1). The PFC Sigma knee system appears to provide excellent results in the medium term.
Cemented total hip replacement for primary osteoarthritis in patients aged 55 years or older
Authors: Mäkelä K. , Eskelinen A. , Pulkkinen P. , Paavolainen P. , Remes V. 
Published: November 2008

We have analysed from the Finnish Arthroplasty Register the long-term survivorship of the 12 most commonly-used cemented implants between 1980 and 2005 in patients aged 55 years or older with osteoarthritis. Only two designs of femoral component, the Exeter Universal and the Müller Straight femoral component had a survivorship of over 95% at ten years with revision for aseptic loosening as the endpoint. At 15 years of the femoral and acetabular component combinations, only the Exeter Universal/Exeter All-poly implant had a survival rate of over 90% with revision for aseptic loosening as the endpoint. In the subgroup of patients aged between 55 and 64 years, survivorship overall was less than 90% at ten years. The variation in the long-term rates of survival of different cemented hip implants was considerable in patients aged 55 years or older. In those aged between 55 and 64 years, none of the cemented prostheses studied yielded excellent long-term survival rates (≥ 90% at 15 years).
Health-care quality registers
Authors: Ranstam J. , Wagner P. , Robertsson O. , Lidgren L. 
Published: November 2008

Public disclosure of outcome-orientated ranking of hospitals is becoming increasingly popular and is routinely used by Swedish health-care authorities. Whereas uncertainty about an outcome is usually presented with 95% confidence intervals, ranking’s based on the same outcome are typically presented without any concern for bias or statistical precision. In order to study the effect of incomplete registration of re-operation on hospital ranking we performed a simulation study using published data on the two-year risk of re-operation after total hip replacement. This showed that whereas minor registration incompleteness has little effect on the observed risk of revision, it can lead to major errors in the ranking of hospitals. We doubt whether a level of data entry sufficient to generate a correct ranking can be achieved, and recommend that when ranking hospitals, the uncertainties about data quality and random events should be clearly described as an integral part of the results.
Sustaining self‐regulatory efficacy and psychological outcome expectations for postnatal exercise: Effects of a group‐mediated cognitive behavioural intervention
Authors: Cramp A. G. , Brawley L. R. 
Published: December 2008

Objective. The objective of the current investigation was to examine if the effects of a group‐mediated cognitive behavioural counselling plus exercise intervention were superior to the effects of a standard exercise care condition on postnatal mothers' self‐regulatory efficacy (SRE), outcome expectations (OEs) and self‐directed physical activity (PA).Design. The design of the study consisted of two intervention conditions; group‐mediated cognitive behavioural counselling plus exercise (GMCB) and standard exercise (SE). Each condition consisted of two phases; a 4‐week supervised, centre‐based intensive exercise training phase followed by a 4‐week home‐based phase.Methods. Participants were 57 postnatal women randomly assigned to conditions (SE: N = 31; GMCB: N = 26). Measures of SRE and OEs were assessed prior to and following the centre‐based aspect of the intervention. Physical activity was measured following the intensive exercise training phase as well as the home‐based phase.Results. GMCB participants' SRE and OEs were sustained during the intervention whereas those of SE participants declined. GMCB participants also reported significantly greater time spent engaging in self‐directed PA at the conclusion of the intensive and home‐based phases. Mediation analysis revealed that SRE partially mediated the relationship between intervention condition and post home‐based PA as confirmed by a significant sobel test.Conclusions. These findings suggest that a theory‐based GMCB counselling plus exercise intervention is superior to the SE condition in sustaining SRE and OEs, and in promoting greater self‐directed PA. SRE partially mediated the relationship between intervention condition and post home‐based PA supporting the targeting of that variable for change as part of the intervention.
Fertility effects of abortion and birth control pill access for minors
Authors: Guldi Melanie 
Published: November 2008

AbstractThis article empirically assesses whether age-restricted access to abortion and the birth control pill influence minors’ fertility in the United States. There is not a strong consensus in previous literature regarding the relationship between laws restricting minors’ access to abortion and minors’ birthrates. This is the first study to recognize that state laws in place prior to the 1973 Roe v. Wade decision enabled minors to legally consent to surgical treatment—including abortion—in some states but not in others, and to construct abortion access variables reflecting this. In this article, age-specific policy variables measure either a minor’s legal ability to obtain an abortion or to obtain the birth control pill without parental involvement. I find fairly strong evidence that young women’s birthrates dropped as a result of abortion access as well as evidence that birth control pill access led to a drop in birthrates among whites.