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Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 7 - 7
1 Sep 2012
Mosfeldt M Pedersen O Jorgensen H Ogarrio H Duus B Lauritzen J
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Hip fractures are associated with excess mortality, and several studies have pointed out the burden on society health care costs and the need to optimize cost effectiveness in treatment. The goal of our study was to investigate if patients with a higher risk of death after hip fracture could be identified using routine blood tests taken on admission.

All 530 hip fracture patients admitted to the Department of Orthopedics, Bispebjerg University Hospital from October 2008 till December 2009 were included prospectively. Patients under the age of 60 (n = 39) were excluded. Furthermore, because the purpose was to identify blood tests at the time of admission that could predict outcome, we only included patients that had project blood samples taken at the day of admission resulting in 324 hip fracture patients for further analysis. Follow up data on mortality were obtained from the national civil registry the first of February 2010. Predictors for mortality were determined by logistic and cox regression models. P < 0.05 was regarded as statistically significant. Of the 324 hip fracture patients under study, 66 (20%) died within the study period.

The results of stepwise Cox multivariate regression models for survival during the first three months after admission revealed that age, plasma creatinine and albumin predict mortality. The hazard ratios were 1.04 (95% CI: 1.005–1.09, p = 0.02), 1.01 (per unit increase)(95% CI: 1.01–1.02, p<0.0001), and 0.87 (95% CI: 0.80–0.94, p = 0.002) for age, plasma creatinine and albumin respectively. The 90 day mortality was 13% and 42% in patients with normal and elevated plasma creatinine levels respectively.

Hip fracture patients are known to have a high risk of post- operative mortality. Our findings suggest that it might be possible to identify at- risk patients that could possibly benefit from increased attention the first months following surgery using already available blood samples.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 252 - 252
1 Sep 2012
Madsen C Joergensen H Lind B Ogarrio H Duus B Lauritzen J
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Introduction

The calcium-PTH-vitamin D-axis has long been highlighted for its effects on bone status and much interest has been given to how this relates to the risk of sustaining an osteoporotic fracture. Little attention has on the other hand been given to how disturbances in this axis, as for example secondary hyperparathyroidism (SHPT), relate to mortality among hip fracture patients. We therefore wanted to determine if SHPT could predict mortality in this group of patients.

Methods

The study included 562 hip fracture patients (HF) (age 70 years) admitted to a Danish university hospital. Each hip fracture patient was exactly matched according to age and sex with two controls randomly chosen from a control population of approximately 248000 subjects. The control group (Con) (n=1124) consists of subjects who have had PTH, total calcium (Ca) and 25OH-vitamin D (VitD) measured at the General Practitioners Laboratory of Copenhagen after referral from their general practitioner. Of the HF's 462 had a Ca measurement, 440 had a PTH measurement and 439 had a VitD measurement.

Basic characteristics (values for age, Ca, PTH and VitD are mean (SD)): Sex (females/males) (%): 73.8/26.2. Age (years): 82.9 (5.7). Ca (mmol/l): Con 2.34 (0.13), HF 2.27 (0.13), p<0.0001 (chi-square). PTH (pmol/l): Con 6.4 (5.8), HF 6.6 (5.4), p=0.4 (chi-square). VitD (nmol/l): Con 53.3 (30.1), HF 49.3 (29.6), p=0.02 (chi-square).


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 164 - 164
1 Sep 2012
Riis T Ogarrio H Jorgensen H Lauritzen J Van Der Mark S Duus B
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At Bispebjerg University Hospital in Denmark, an Optimized Hip Fracture Program, (OHP) is the standard of care for all hip fracture patients. Part of OHP is pain treatment with a femoral nerve catheter placed at the emergency room, dosed 4 times a day with Bupivacain until 4 days after surgery, combined with systemic analgesics as needed. In 2008, a database and a bio bank were created at the ward including all hip fracture patients to make a better description of the population and as a tool for further optimisation of the OHP. One of the aims was to identify possible subgroups having specific complications, which could lead to a differentiation of the OHP by markers known at the time of admission. In this analysis, we will focus on postoperative pain that inhibits mobilization by fracture type and type of surgery.

Methods

A consecutive cohort of 898 hip fracture patients hospitalized within two years from September 2008 to July 2010 was used for this study. Patients coming from nursing homes were excluded from the study, since nearly all are discharged 1 or 2 days after surgery to rehabilitation. If the exact type of fracture was not known, or if the patient was admitted for rehabilitation after surgery at another hospital, the patient was also excluded. 508 patients were thus included in the study. Mean age 80.0 years (SD:23.7), 72.1% women and 27.9% men.

Mobilization inhibited by postoperative pain as documented in the patient files was registered in the database. Overall mobilization was inhibited by pain in 26.7% of the 508 patients included.

The following fracture types were studied: Femoral neck Garden 1–2, Femoral neck Garden 3–4, Pertrochanteric Evans 1–2, Pertrochanteric Evans 3–5, Basocervical and Subtrochanteric.

Results

Mobilization inhibited by pain was not significantly associated with type of surgery:

Cannulated Hip Screws 16/80 (20.0%), sliding hip screw 23/94 (24.5%), Intramedullary Nail 63/186 (33.9%), partial hip replacement 33/144 (22.9%), total hip replacement 1/5 (20.0%). P = 0.09 chi square.

On the other hand mobilization inhibited by pain was significantly associated with fracture type:

Femoral neck Garden 1–2: 13/64 (20.3%), Femoral neck Garden 3–4: 38/172 (22.1%), Pertrochanteric Evans 1–2: 18/69 (26.1%), Pertrochanteric Evans 3–5: 46/149 (30.9%), Basocervical: 6/28 (21.4%), Subtrochanteric 15/27(55.6%). P = 0.009 chi square.


Orthopaedic Proceedings
Vol. 94-B, Issue SUPP_XXXVII | Pages 11 - 11
1 Sep 2012
Van Der Mark S Jauffred S Joergensen H Riis T Ogarrio H Duus B
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For some years, there has been vast international interest in creating models for joint efforts between geriatricians and orthopedic surgeons. We present data from two such models.

For the first time in Denmark, the Department of Orthopedics Bispebjerg University Hospital (BUP) recruited two full-time geriatricians in September 2009. They were assigned an independent unit meant for severely ill orthopaedic patients with high comorbidity and polypharmacy. These two geriatricians had, during the previous two years, consulted another orthopaedic department at Gentofte University Hospital (GUH) in a neighbouring community three times a week. The aim of their intervention was then to optimize treatment for comorbidity, to clarify indication of acute fall-assessment, osteoporosis diagnosis and treatment, presence of delirium and dementia.

Methods

A total of 1344 hip fracture patients (age 70 years) divided into three populations were included in this study. Mortality data were collected from the Danish Civil Registry.

Population 1 (P1), n = 645 was included at GUH from January 1, 2006 to December 31, 2007. During the entire period, the patients had access to a senior consultant in geriatric medicine three times a week. In this population, the majority of patients were assessed for dementia (n = 636), delirium (n = 627) and Barthel Index (Barthel100) at admission (n = 394).

Population 2 (P2), n = 381 included at BUH from September 1, 2009 until July 8, 2010 with orthogeriatric access.

Population 3 (P3), n = 318 were included at BUH from September 28, 2008 until August 31, 2009 with no orthogeriatric access.

Age mean (SD): P1 84.7 (6.8), P2 85.5 (7.3), P3 85.3 (14.3) P = 0.1(ANOVA) Sex ratio: females/males: P1 0.73/0.27, P2 0.80/0.20, P3 0.75/0.25 P = 0.09 Chi square).

Results

In-hospital mortality rate: P1 4.8%, P2 6.3%, P3 9.1% P = 0.03 (Chi square).

Three month mortality: In P1 dementia, delirium and Barthel Index (below 50 versus above 50) were all strong predictors: No dementia: 53/383 (13.8%) versus dementia present 68/253 (26.9%) died, P = 0001 (log-rank test).

No delirium 69/456 (15.1%) versus delirium present 47/171 (27.5%) died F = 0.0004 (log-rank test) Barthel Index 50 38/372 (10.2%) versus Barthel<50 7/22 (31.8%) died P = 0.0004