Mortality following hip fracture: trends and geographical variations over the last 40 years

Hip fractures are an ever increasing cause of morbidity and mortality. Treatment of this condition requires an all-encompassing approach from prevention to post-operative care. It is important in such a situation to gather data on the incidence and trends of hip fractures to aid in the future treatment planning of this important condition. A review of all articles published on the outcome after hip fracture over a four decade period (1959-1998) was undertaken to determine any changes that had occurred in the demographics of patients and mortality over this time period. The mean age of patients sustaining hip fractures was found to be steadily increasing over the study period at a rate of 1 year of age for every 5-year time period. The mean age in the 1960s was 73 years to a mean of 79 years in the 1990s. No notable differences were seen in the proportion of male patients over the years but a definite downward trend was noticed with regard to intracapsular fractures. The mortality at 6 and 12 months after injury remained essentially unchanged over the four decades reviewed. Mortality after a hip fracture remains significant, being 11-23% at 6 months and 22-29% at 1 year from injury. Geographical variations exist in the mortality after hip fracture. More detailed international comparisons are required to determine if these differences in outcome are accounted for by the variations in the demographics of patients or due to diversities in treatment methods.     

Mortality following hip fracture surgery in patients with recent myocardial infarction

INTRODUCTION

In an elective setting, surgery is best avoided for at least 6 months following myocardial infarction. However, in the presence of a femoral neck fracture, this would most probably lead to significant complications in relation to prolonged immobilisation. There is no published mortality data for patients undergoing surgery for hip fracture following a recent myocardial infarction. The aim of this retrospective study was to assess the mortality of hip fracture patients with a recent myocardial infarction that have undergone surgery at our institution.

PATIENTS AND METHODS

Between January 2003 and October 2005, 2270 patients were admitted to our unit with a proximal femoral fracture. Of these, 11 patients were found to have a recent myocardial infarction.

RESULTS

Of these 11 patients, 8 were female. The average age was 78.2 years (range, 59–90 years). Average delay from the time of infarction to operation was 11.2 days (range, 3–23 days). Mortality at 1 and 6 months was 45.4% and 63.5%, respectively.

DISCUSSION

This is much higher than the overall reported mortality following proximal femur fracture. This information may be useful when planning future peri-operative care and discussing overall prognosis with patients and their relatives.     

The effect of delay to surgery on morbidity,mortality and length of stay following periprosthetic fracture around the hip

With the increasing prevalence of total hip arthroplasty and the increasing longevity of patients with implants in situ, periprosthetic fractures of the proximal femur are seen with greater frequency. They represent a challenging surgical problem, requiring combined arthroplasty and trauma skills in a potentially compromised surgical bed. We present data from the 82 consecutive patients with periprosthetic fractures around the hip presenting to two NHS Foundation Trusts in the period January 2009 to February 2014.Inpatient mortality across all sites was 11.0%. This increased to 17.1% at 1 year. There was no association between delay to surgery and either inpatient or 1 year mortality. Mean delay to surgery was 4.1 days in those without inpatient mortality, 5.2 days in those with (p = 0.3075). Mean delay to surgery was 4.5 days in those with 1 year mortality, 4.16 days in those without (p = 0.6203). The number of post-operative complications was not significantly positively correlated with increasing delay to surgery (Pearson correlation coefficient −0.04437).It would appear that a delay to order necessary equipment and obtain relevant surgical expertise for the treatment of these complex fractures is safe and not associated with increased mortality or post-operative complications.     

Risk factors for contra-lateral hip fracture in elderly patients with previous hip fracture

Introduction

Contra-lateral hip fractures in elderly patients with a previous hip fracture increase the incidence of complications and socioeconomic burden. The purpose of this study was to identify the risk factors that contribute to the occurrence of contra-lateral hip fracture in elderly patients.

Materials and methods

Among 1093 patients treated for a hip fracture, 47 patients sustained a contra-lateral hip fracture. These patients were compared with 141 patients with a unilateral hip fracture (controls).

Results

The incidence of contra-lateral hip fracture was 4.3% among the 1093 patients treated for a hip fracture at our institute. A contra-lateral hip fracture occurred within 2 years of initial fracture in 66%, and subsequently, the annual incidence rate decreased. A similar fracture pattern was noted in 70% of patients who sustained an intertrochanteric fracture. In terms of preoperative factors, respiratory disease (OR 2.57, P = 0.032) and visual impairment (OR 2.51, P = 0.012) were higher in patients with a contra-lateral hip fracture than in controls, and for postoperative factors, the proportions of patients with postoperative delirium (OR 2.91, P = 0.022), late onset of rehabilitation (OR 1.05, P = 0.023), and poor ambulatory status at 3 months (OR 1.34, P = 0.002) were also significantly higher in patients than in controls.

Conclusions

Postoperative delirium and underlying visual impairment and respiratory disease could be risk factors of contra-lateral fracture in elderly patients. Early and active rehabilitation after surgery is important to prevent the occurrence of contra-lateral hip fracture in the elderly.     

全髋关节置换假体柄周围骨折的治疗

目的 :回顾性研究全髋关节置换假体柄周围骨折的治疗及预防。方法 :将本院近年收治的全髋置换假体柄周围骨折的 8例病例按Vancouver分类方法进行分类 ,其中A1型 3例 ,B1型 3例 ,B2型 1例 ,B3型 1例 ,分别用钢丝环扎固定 ,异体皮质骨板加钢丝环扎 ;骨水泥长柄假体翻修。结果 :术后随访 8～ 18个月 ,骨折愈合 ,假体固定可靠。结论 :全髋关节置换术后假体柄周围骨折用Vancouver分类方法分类 ,简单、适用。采用异体皮质骨板与钢丝环扎固定骨折 ,治疗假体柄周围骨折 ,不仅固定可靠而且能促进骨折愈合、恢复骨量。     

人工髋关节置换术治疗内固定失败的髋部骨折

目的探讨挽救性人工髋关节置换术的疗效。方法1995年1月至2007年12月，对11例髋部骨折内固定治疗失败的患者（股骨颈骨折7例，股骨粗隆问骨折4例）进行回顾性研究，分析其内固定治疗失败的原因，总结这11例患者行人工髋关节置换术的疗效。结果髋部骨折内固定治疗失败的主要原因是复位不良、内固定技术错误。10例患者获平均12个月（2～27个月）随访。无感染、脱位、假体松动下沉及假体周围骨折等并发症发生。10例患者髋关节功能均有改善，Harris评分由术前平均34.5分提高到术后84.2分。结论骨折复位不良、错误的内固定技术是髋部骨折治疗失败的重要原因。进行挽救性的人工髋关节置换手术对恢复患者髋关节功能临床疗效满意。     

Femoral revision for periprosthetic fracture in total hip arthroplasty

Periprosthetic fracture can create significant morbidity in the arthroplasty population. Patients with periprosthetic fracture have been shown to have worse outcomes and higher mortality than patients undergoing elective revision THA. In this review, we will focus on Vancouver B2 and B3 fractures. Both of these fracture types are associated with a loose primary prosthesis and warrant revision surgery. There are many different options for fixation choice of the femoral prosthesis, and preference has been evolving over the last 30 years. Currently, we use monoblock, tapered, fluted, titanium stems for all periprosthetic fracture revision surgeries.     

人工髋关节置换术后假体柄周围股骨骨折的治疗

目的探讨人工髋关节置换术后假体柄周围股骨骨折的治疗计划以及临床效果。方法回顾自1988年1月至2001年6月本组收治的45例患者,依Vancouver分类系统,共有7例A型骨折,24例B1型骨折,7例B2型骨折,4例B3型骨折以及3例C型骨折。分别根据假体稳定度作骨折内固定或人工髋关节翻修手术,应用钢板加钢丝或钢索、Dall—Miles钢板、异体结构骨、异体骨碎片等,翻修手术应用常规骨柄或组合式股骨柄,并分析各类型骨折及各种治疗方式的结果与并发症。结果A型及B1型骨折的愈合率高,但必须注意钢板的长度;B2型骨折要注意翻修手术时的角度,避免术后出现脱臼;至于B3及C型则由于骨折复杂,并发症及失败率极高。因此,本研究提出关于这类损伤的治疗流程,让整个复杂程序更具逻辑性、简单性。结论人工髋关节置换术后假体柄周围股骨骨折是一个较复杂的问题。要获得成功的治疗,必须清楚判断骨折的特性,善用各种骨折治疗材料,以一个逻辑性思考做术前治疗计划,因此适当的分类系统显得特别重要。     

Outcomes following osteosynthesis of periprosthetic hip fractures around cemented tapered polished stems

We retrospectively reviewed outcomes of 79 patients with periprosthetic hip fractures around cemented tapered polished stem (CTPS) implants treated with osteosynthesis between January 1997 and July 2011. All patients underwent open reduction and fixation using a broad dynamic compression plate (DCP).Seventy two (91%) of fractures united. There were seven (9%) non-unions with failure of metal work, three (4%) as a result of infection and four (5%) due to mechanical failure. Significant subsidence (>5 mm) of the implant was seen in seven (9%) of cases. Ten (13%) cases developed post-operative infection. Non-anatomic reduction and infection were identified as predictors of poor outcome.This is the largest series of a very specific group of periprosthetic fractures treated with osteosynthesis. Open reduction internal fixation with a broad dynamic compression plate for patients with periprosthetic hip fractures around the tip of cemented tapered polished stems is a suitable treatment provided there is no bone loss and the fracture can be precisely, anatomically, reduced and adequately fixed.     

Acute renal dysfunction following hip fracture

We investigated the incidence, risk factors and outcome of acute renal dysfunction (ARD) in patients with a fractured neck of femur.170 consecutive patients were prospectively included in the Scottish Hip Fracture Audit database and retrospectively analysed. Historically, lack of consensus definition has hindered accurate reporting of ARD. ARD was defined using the ‘RIFLE’ criteria.27 patients (16%) developed ARD. Risk factors were male sex, vascular disease, hypertension, diabetes, chronic kidney disease and pre-morbid use of nephrotoxic medications (p < 0.01). Inpatient, 30- and 120-day mortality was higher in the ARD group 19%, 22% and 41% respectively, versus 0%, 4% and 13% in the non-ARD group (p < 0.01). Length of hospital stay was significantly longer in the ARD group. Pre- and post-operative complications were 12 and 5 times more frequent respectively in the ARD group (p < 0.01).Awareness of risk factors and serial measurements of renal function allow early identification and focused monitoring of these patients.     

Predictors of 5 year survival following hip fracture

Background

This study aims to assess the mortality associated with hip fracture at 5 years in a geriatric population, and evaluate the influence of age, cognitive state, mobility and residential status on long term survival after hip fracture.

Methods

A prospective audit was carried out of all patients with a hip fracture admitted to a university hospital over a 4 year period. Data from 2640 patients were analysed and multivariate analysis used to indicate the important variables predicting mortality. Patients fulfilling the criteria of age < 80 years, Abbreviated Mental Test Score (AMT) ≥ 7/10, independently mobile and admitted from own home were put into group A (low risk group). Patients not meeting the criteria were placed into group B (high risk group).

Results

2640 patients fitted the inclusion criteria, 482 in group A and 2158 in group B. 850 patients (43.1%) died in their first year following hip fracture. 302 patients (63%) of group A were still alive at 5 years in comparison with only 367 (17%) of group B. Overall, 669 (25%) patients survived for 5 years. Increased survival was shown for the following variables: age < 80 years RR 5.27 (p < 0.01), AMT ≥ 7/10 RR 6.03 (p < 0.01), independent mobility RR 2.63 (p < 0.01) and admitted from own home RR 4.52 (p < 0.01).

Conclusions

These findings will allow for early recognition of those patients with an increased chance of long-term survival following hip fracture. Such patients may be suitable for surgical treatment, such as total hip replacement, which has a good long-term outcome.     

Mortality following combined fractures of the hip and proximal humerus

BACKGROUND Hip fractures and proximal humerus fractures are known to be associated with increased mortality, but the impact on mortality of combining these two common injuries is not well known.AIM To compare mortality, inpatient stay and discharge destination for patients with combined hip and proximal humerus fractures with those sustaining isolated hip fractures.METHODS Using the United Kingdom national hip fracture database, we identified all hip fracture patients over the age of 60 admitted to a single trauma unit from 2010-2016. Patients sustaining a proximal humerus fracture in addition to their hip fracture were identified using hospital coding data. We calculated the 30-d and one-year mortality for both the hip fracture cohort and the combined hip and proximal humerus fracture cohort. Other variables recorded included age, gender and whether the proximal humerus was treated with or without an operation.RESULTS We identified 4131 patients with hip fractures within the study period and out of those 40 had sustained both a hip and a proximal humerus fracture. Mean age in the hip fracture cohort was 80.9 years and in the combined fracture group 80.3 years. Out of the 40 patients in the combined group four were treated operatively. The 30-d mortality for our hip fracture cohort was 7.2% compared to the mortality of our combined cohort of 12.5%(P = 0.163). The one-year mortality for our hip fracture cohort was 26.4% compared to 40% for the combined fracture cohort(P = 0.038). We also found patients with combined injuries were less likely to return to their own home.CONCLUSION The 30-d and one-year mortality is higher for those patients who have sustained a combined hip and proximal humerus fracture when compared to those with a hip fracture alone.     

Perioperative mortality for patients with a hip fracture

IntroductionStudies on mortality following hip fracture surgery have hitherto focused on the 30 day to 1 year period and beyond. This study focuses on the immediate perioperative period. It examines mortality rates, patient characteristics, operative details and post-operative complications.Patients and methodsA retrospective study of a hip fracture database in a large District General Hospital in the United Kingdom, from 1986 to 2015. A dataset of 9393 patients was identified, including patients undergoing surgery for curative and palliative purposes, over fifteen years of age and with no upper age limit imposed. It compared patients who survived the first 48 h from start of surgery with those who died within this perioperative period.Results9393 patients were treated surgically and included within this study, with a mean age of 80.13 and consisting of 7130 female and 2263 male patients. The all cause mortality within 48 h from start of surgery was 0.8% (72 patients). Increased risk of perioperative mortality was associated with increasing age, ASA grade 3 and above, in-hospital falls, impaired mobility prior to the fall and a reduced mental test score on admission. For the patient with a perioperative death, the most common circumstances identified in this study involved being found dead in bed by attending staff within 48 h of surgery.DiscussionThere has been significant attention paid to the optimization of patient management leading up to hip fracture surgery and its attendant impact on medium and longer term survival. The information from this study may be used to identify patients most at risk of death in the 48 h after surgery. The importance of this dataset is that it provides large numbers, which are needed in order to look for associations, given the low 48 h mortality rate found.ConclusionWe are unable to highlight any correctable or alterable factors associated with mortality. Further studies with detailed collection of data on a national scale may be needed to assess the impact of levels of postoperative care for hip fracture patients and perioperative mortality.     

Time to surgery and 30-day morbidity and mortality of periprosthetic hip fractures

Background and aim

The management of femoral periprosthetic fractures following hip replacement surgery is a complex and challenging situation. Whilst the early complications for both primary hip arthroplasty and proximal femoral fracture surgery have been widely documented, there is a paucity of published data regarding early outcomes following periprosthetic fracture surgery.Delay to surgery for native proximal femoral fractures has been clearly documented as a predictor towards adverse outcome. This study therefore aims to correlate the timing of operative intervention with the complication rate following periprosthetic fracture surgery. In addition, the study aims to identify further factors in the perioperative period that positively predict a poor postoperative outcome.

Methods

Sixty patients who were operatively managed for a femoral implant periprosthetic fracture were identified and each case assessed retrospectively.

Results and conclusion

There was an overall complication rate of 45% including a 30-day mortality of 10%. An abbreviated mental test score of 8 out of 10 or less and a delay to surgery of >72 h were found to be significant risk factors for adverse outcome. Both the patient cohort in this study and the predictors for poor postoperative outcome were comparable to those for native proximal femoral fractures.     

Excess mortality following hip fracture: the role of underlying health status

Summary We evaluated the long-term excess mortality associated with hip fracture, using prospectively collected data on pre-fracture health and function from a nationally representative sample of U.S. elders. Although mortality was elevated for the first six months following hip fracture, we found no evidence of long-term excess mortality. Introduction The long-term excess mortality associated with hip fracture remains controversial. Methods To assess the association between hip fracture and mortality, we used prospectively collected data on pre-fracture health and function from a representative sample of U.S. elders in the Medicare Current Beneficiary Survey (MCBS) to perform survival analyses with time-varying covariates. Results Among 25,178 MCBS participants followed for a median duration of 3.8 years, 730 sustained a hip fracture during follow-up. Both early (within 6 months) and subsequent mortality showed significant elevations in models adjusted only for age, sex and race. With additional adjustment for pre-fracture health status, functional impairments, comorbid conditions and socioeconomic status, however, increased mortality was limited to the first six months after fracture (hazard ratio [HR]: 6.28, 95% CI: 4.82, 8.19). No increased mortality was evident during subsequent follow-up (HR: 1.04, 95% CI: 0.88, 1.23). Hip-fracture-attributable population mortality ranged from 0.5% at age 65 among men to 6% at age 85 among women. Conclusions Hip fracture was associated with substantially increased mortality, but much of the short-term risk and all of the long-term risk was explained by the greater frailty of those experiencing hip fracture.     

全髋关节置换术中假体周围骨折的研究进展

全髋关节置换术是一个较为成熟的手术,术中假体周围骨折是其并发症之一,假体周围骨折分为髋臼假体周围骨折和股骨假体周围骨折,危险因素包括微创技术的使用、压配式非骨水泥假体柄的使用、髋关节翻修术和骨质疏松等。本文就全髋关节置换术中假体周围骨折的分型及治疗进展进行综述。     

Mortality and serum urea and electrolytes on admission for hip fracture patients

OBJECTIVE: To assess the relationship between pre-operative serum urea and electrolyte concentrations and mortality in patients with hip fractures requiring surgery. METHODS: A prospective observational study of 2963 consecutive patients admitted to a single trauma unit with a hip fracture, treated operatively. RESULTS: The 30-day mortality for patients with low and normal urea concentrations was 6.9%. The 30-day mortality for patients with raised urea concentrations was almost double (11.5%). A raised admission serum urea concentration was an independent predictor for mortality at 30 days, 90 days, 1 year and 2 years. Mortality was significantly increased in patients admitted with: raised or low serum sodium, raised serum potassium and raised serum creatinine. CONCLUSION: Mortality is high following hip fracture. Patients admitted with a raised serum urea are at increased risk of death at all time intervals analysed up to and including 2 years. This group of patients may require a separate care pathway that provides more intensive management of fluid and electrolyte balance.     

Extracortical plate fixation with new plate inserts and cerclage wires for the treatment of periprosthetic hip fractures

Purpose

Fixation of periprosthetic hip fractures with intracortical anchorage might not be feasible in cases with bulky implants and/or poor bone stock.

Methods

Rotational stability of new plate inserts with extracortical anchorage for cerclage fixation was measured and compared to the stability found using a standard technique in a biomechanical setup using a torsion testing machine. In a synthetic PUR bone model, transverse fractures were fixed distally using screws and proximally by wire cerclages attached to the plates using “new” (extracortical anchorage) or “standard” (intracortical anchorage) plate inserts. Time to fracture consolidation and complications were assessed in a consecutive series of 18 patients (18 female; mean age 81 years, range 55–92) with periprosthetic hip fractures (ten type B1, eight type C-Vancouver) treated with the new device between July 2003 and July 2010.

Results

The “new” device showed a higher rotational stability than the “standard” technique (p < 0.001). Fractures showed radiographic consolidation after 14 ± 5 weeks (mean ± SD) postoperatively in patients. Revision surgery was necessary in four patients, unrelated to the new technique.

Conclusion

In periprosthetic hip fractures in which fixation with intracortical anchorage using conventional means might be difficult due to bulky revision stems and/or poor bone stock, the new device may be an addition to the range of existing implants.