Sliding hip screw versus intramedullary nail for trochanteric hip fractures; a randomised trial of 1000 patients with presentation of results related to fracture stability

AimsTo determine the optimum choice of implant for a patient with a the different types of trochanteric hip fracture.Patients and methods1000 patients with a trochanteric hip fracture were randomised to internal fixation of the fracture with either a Sliding Hip Screw or an intramedullary nail. Fractures were subdivided into two part fractures, comminuted fractures and fractures at the level of the lesser trochanter (reversed/oblique and transverse). Functional assessment for up to one year from injury was undertaken by a research nurse blinded to the treatment allocation.ResultsThe mean age of patients was 82 years and 77% were female. There was a significantly improved regain of mobility for those treated with the intramedullary nail. No statistically significant differences between the two types of fixation methods was observed for mortality, fracture healing complications, re-operations, hospital stay, length of surgery, blood transfusion requirements, medical complications, degree of residual pain or regain of independence. These finding were valid for all fracture types.ConclusionThis study is the first adequately powered randomised trial on this topic and demonstrates that there are no notable differences in either process or functional outcomes between these two treatment methods, other than a tendency to better regain of mobility for those fractures fixed with an intramedullary nail.     

A five-year review comparing 30-day mortality following intramedullary nailing versus sliding hip screw for trochanteric hip fractures

IntroductionRecent literature suggests that fixation of trochanteric hip fractures with intramedullary nailing carries a higher 30-day mortality than with sliding hip screw. The present study aims to verify whether this statement is reflected in our practice.Patients and MethodsSliding hip screw and intramedullary nail fixation of trochanteric hip fractures were analysed over a 5-year period, between April 2011 and March 2016. Three investigators independently analysed 919 patients. Data collected included 30-day mortality, OTA classification of hip fracture and ASA grading. Inclusion and exclusion criteria were applied.Results493 patients (66%) underwent sliding hip screw while 252 patients (34%) underwent intramedullary femoral nailing. AO/OTA classification was strongly associated with treatment group. It was found that 30-day mortality rate was 4.8% following intramedullary nailing compared to 6.1% with sliding hip screw. Multivariate logistic regression analysis found ASA grade, male gender and age to be associated with increased 30-day mortality with statistical significance. There was no statistically significant association between treatment group and 30-day mortality, nor between ASA grade and treatment group.ConclusionsBoth the lower 30-day mortality rate of 4.8% with intramedullary nailing and the higher rate of 6.1% with sliding hip screw fixation compare favourably with the mean 7.9% National 30-day mortality rate following hip fractures. The lower 30-day mortality in the intramedullary nailing group was not attributable to lower ASA grading nor due to simpler fracture configuration. ASA grade, male gender and age were shown to be statistically associated with increased 30-day mortality.ImplicationsPrevious studies may have deterred surgeons from choosing an intramedullary device. However, we hope this study assists surgeons to make an informed decision on the choice of implant particularly when an intramedullary device is required to provide a more stable construct.     

Use of a long distally fixed intramedullary stem to treat a periprosthetic femoral fracture following total hip arthroplasty using a thrust plate hip prosthesis: A case report

IntroductionThe thrust plate hip prosthesis (TPP; Zimmer, Winterthur, Switzerland) is a hip prosthesis that is no longer in production. Few reports have focused on periprosthetic fractures following total hip arthroplasty (THA) with the use of a TPP.Presentation of caseWe report a 57-year-old woman with a periprosthetic femoral fracture 13 years after THA with the use of a TPP. A plain radiograph showed a displaced subtrochanteric fracture of the right femur just below the distal tip of the lateral plate without implant loosening. She underwent revision surgery with a long distally fixed intramedullary stem in conjunction with a plate and cable system. Three months after surgery, bone union was confirmed using radiography and the patient was clinically asymptomatic.DiscussionWe encountered three major problems while planning surgical treatment, these being, discontinuation of the TPP system, loss of proximal femoral cancellous bone, and difficulties with the type of subtrochanteric fracture. After considering these problems, we planned revision surgery using a long distally fixed intramedullary stem in conjunction with a plate and cable system.ConclusionThis case shows that sufficient implant preparation based on precise preoperative planning is necessary to obtain good clinical results for the surgical treatment of periprosthetic femoral fractures following THA with the use of a TPP.     

Are there advances in the treatment of extracapsular hip fractures in the elderly?

While the rate of failure following hip fracture surgery for extracapsular hip fractures in the elderly is low, an incidence of implant cutout from the femoral head remains regardless of whether fixation is by sliding hip screw or intramedullary nail. In general, a well-executed osteosynthesis is the best assurance of a good outcome with few complications, and typically a less than ideal placement of the implant in the femoral head is the reason for cut-out and failure of the operation. It is clear that there is no difference in the incidence of complications or functional outcome between a sliding hip screw and an intramedullary nail for pertrochanteric fractures (AO/OTA 31-A1 and A2), while the implant of choice in the elderly for the true intertrochanteric fracture (AO/OTA 31-A3; reverse intertrochanteric) is a nail. However, what is less clear is whether there are newer ideas and/or implant designs that represent true advances in the treatment of extracapsular fractures in the elderly. The following review focuses on just this issue.     

生物型全髋置换治疗股骨转子间骨折髓内钉固定术后创伤性关节炎的中期疗效

目的:分析生物型全髋关节置换(total hip arthroplasty,THA)治疗股骨转子间骨折髓内钉固定术后创伤性关节的中期疗效。方法:回顾性分析2012年1月至2017年1月治疗的22例转子间骨折髓内钉固定术后继发创伤性关节炎患者,其中男10例,女12例;年龄61~84(72.5±9.8)岁。初次内固定方式:Gamma钉固定14例,PFNA固定8例。内固定术后至THA时间10~68(32.2±21.3)个月。比较术前及术后髋关节Harris评分,通过术后3、6、12个月及末次随访影像学评估假体位置。结果:1例在术后1年死于心衰,2例术后2年死于晚期肿瘤,其余19例患者获得随访,时间36~64(48.5±11.9)个月。末次随访时14例可自由行走,4例需单手杖辅助,1例需助步器辅助。随访期间无关节脱位、假体周围骨折及深静脉血栓形成等严重并发症发生。髋关节Harris评分由术前的(29.2±12.9)分提高到末次随访的(74.2±11.2)分(P<0.05);其中优9例,良7例,可3例。结论:生物型全髋关节置换术治疗股骨转子间骨折髓内钉固定术后创伤性关节炎,可明显改善髋关节功能,有效避免骨水泥植入综合征,中期疗效满意。     

The weekend effect for hip fracture surgery

IntroductionIncreased mortality rates have been reported for emergency admissions during weekends and outside office hours. Research on the weekend effect in hip fracture patients is however limited and demonstrates conflicting results. The aim of this study was to determine the effect of weekend admission and weekend surgery on 30-day and 1-year mortality following hip fracture surgery.Patients and methodsAll patients who underwent hip fracture surgery in our hospital between 2004 and 2015 were included in this retrospective study. Patient characteristics including age, gender, fracture type, American Society of Anesthesiologists (ASA) score, Nottingham Hip Fracture Score (NHFS), Charlson Comorbidity Index (CCI) and length of stay were collected. Information on admission and surgery date and time of day was recorded, as were in-hospital, 30-day and 1-year mortality. Multivariable logistic regression analysis was performed to identify independent predictors of 30-day and 1-year mortality.ResultsA total of 1803 patients were included, 546 patients (30.3%) were admitted during the weekend. Patient characteristics did not differ between weekday and weekend admissions. Surgical delay was less frequent in patients undergoing weekend surgery. Multivariable analysis demonstrated that older age, higher ASA score, higher NHFS and increased surgical delay were independently associated with 30-day mortality. One-year mortality was associated with age, gender, ASA score, CCI and surgical delay. Weekend admission and weekend surgery were not associated with increased 30-day or 1-year mortality.ConclusionsThere was no weekend effect for hip fracture patients in our study. These results indicate an adequate level of perioperative care outside weekday office hours within our health care system.     

Total Hip Arthroplasty in Patients With Osteopetrosis

BackgroundOsteopetrosis is an inherited bone disease associated with high risk of osteoarthritis and fracture non-union, which can lead to total hip arthroplasty (THA). Bone quality and morphology are altered in these patients, and there are limited data on results of THA in these patients. The goals of this study were to describe implant survivorship, clinical outcomes, radiographic results, and complications in patients with osteopetrosis undergoing primary THA.MethodsWe identified 7 patients (9 hips) with osteopetrosis who underwent primary THA between 1970 and 2017 utilizing our total joint registry. The mean age at index THA was 48 years and included two males and five females. The mean follow-up was 8 years.ResultsThe 10-year survivorship free from any revision or implant removal was 89%, with 1 revision and 1 resection arthroplasty secondary to periprosthetic femoral fractures. The 10-year survivorship free from any reoperation was 42%, with 4 additional reoperations (2 ORIFs for periprosthetic femoral fractures, 1 sciatic nerve palsy lysis of adhesions, 1 hematoma evacuation). Harris hip scores significantly increased at 5 years (P = .04). Five hips had an intraoperative acetabular fracture, and 1 had an intraoperative femur fracture. All postoperative femoral fractures occurred in patients with intramedullary diameter less than 5 mm at a level 10 cm distal to the lesser trochanter.ConclusionPrimary THA in patients with osteopetrosis is associated with good 10-year implant survivorship (89%), but a very high reoperation (58%) and periprosthetic femoral fracture rate (44%). Femoral fractures appear associated with smaller intramedullary diameters.     

Internal fixation versus conservative treatment for elderly patients with a trochanteric hip fracture in conjunction with post-stroke hemiplegia

ObjectiveTo retrospectively evaluated Gamma nail internal fixation in the treatment of elderly patients with post-stroke hemiplegia experiencing trochanteric hip fracture.MethodsThe patients were obtained consecutively from January 2005 to December 2010 with inclusion criteria. The total number was 138 and allocated to two groups: treated with the Gamma nail (n = 72,group A) and continuous skin traction (n = 66,group B). Preoperative variables including patient age, gender, duration of cerebrovascular accident, duration of hypertension, ASA risk score, Harris hip score and fracture type were recorded and compared. After treatment, time of patients activity on the bed, ambulation time, Harris hip score, mortality, complications were recorded and used to compare the outcomes.Results(1) Follow-up was undertaken from 3 to 10 years, with an average of 5.8 years. (2) No statistical difference in preoperative variables was found between the 2 groups. (3) two groups had statistical significance (P = 0.000) in the time of patients activity on the bed and ambulation time and group A can activities on the bed and ambulates earlier. (4) There were significant differences between 2 groups in Harris hip score at 1 and 3 years and group A was significantly higher than group B. (5) there were statistically significant differences in mortality of 3 years, 5 years and 10 years and the group B was significantly higher than the group A. (6) There was a statistical significance in complications between 2 groups and group B was higher than group A. Major complications in group A were pain, lag screw cut out, implant infection and distal femoral fractures caused by fall after the surgery.ConclusionOn elderly patients with trochanteric hip fracture on the hemiplegic lower side, Gamma nail internal fixation treatment can achieve better effect, patients can be early activity, fewer complications, and less mortality.     

Expert tibia nail for subtrochanteric femoral fracture to prevent thermal injury

IntroductionSubtrochanteric femoral fractures are relatively uncommon, accounting for 7–15% of all hip fractures and treatment of these fractures are considered challenge for orthopaedic surgeons. Although several treatment options are reported with up to 90% of satisfactory results, the choice of the appropriate implant is still a matter of debate. Some authors reported thermal injury after reaming for intramedullary nail fixation in patients with narrow medullary canal.Presentation of caseA 21-year-old female patient was admitted to our hospital because of right subtrochanteric femoral fracture. The narrowest diameter of medullary canal of her femur was about 7 mm but she refused open reduction and internal fixation with plate due to large scar formation. We used expert tibia nail instead of femoral intramedullary nail to prevent thermal injury.DiscussionSubtrochanteric femoral fractures are difficult to treat because of their biomechanical and anatomical characteristics. Although several implants are reported for the surgical treatment of these fractures, intramedullary nails have been advocated due to their biological and biomechanical advantages. However, under certain circumstances with associated injury or anatomic difference we might consider another treatment options.ConclusionExpert tibia nail may be considered one of the treatment options for subtrochanteric femoral fracture with narrow medullary canal. We also emphasize the importance of preoperative evaluation of the medullary canal size for these risky fractures.     

Nail or plate fixation for A3 trochanteric hip fractures: A systematic review of randomised controlled trials

Continuing controversy exists for the choice of implant for treating A3 trochanteric hip fractures so we undertook a systematic review of randomised controlled trials from the year 2000 onwards that have compared an intramedullary nail with an extramedullary fixation implant for the treatment of these fractures. Data on the occurrence of any fracture healing complications was extracted and the results combined to calculate Peto odd ratio. Nine studies involving 370 fractures were identified. Three studies involving 105 fractures compared an intramedullary nail with a static fixation (condylar, blade or locking plate). Plate fixation was associated with a fivefold increase risk of fracture healing complications (19/52(36.6%) versus 4/53(7.5%), odds ratio 0.14, 95% Confidence intervals 0.04–0.45). Six studies involving 265 fractures compared an intramedullary nail with a sliding hip screw. No statistically significant difference was found in the occurrence of facture healing complications between implants (13/137(9.5%) versus 11/128(8.6%) odds ratio 0.28, 95% Confidence intervals 0.50–2.80). Bases on the evidence to date from randomised trials, the use of fixed nail plates for surgical fixation of this type of fracture cannot be justified. Intramedullary nail fixation and the sliding hip screw have comparable fracture healing complication rates.     

Outcome of intertrochanteric fractures treated by intramedullary nail with two integrated lag screws: A study in Asian population

Background:The incidence of intertrochanteric fracture has increased during recent years as life expectancy has also increased. Currently, orthopedic surgeons use various fixation methods for intertrochanteric fractures like, intramedullary (IM) nailing or dynamic hip screws and plates. The intramedullary (IM) nail with two integrated lag screws has been used recently in intertrochanteric fractures to overcome Z-affect phenomenon. However, no study is available in an Asian population. This prospective study was undertaken to document the clinical and radiologic outcomes of the IM nail with two integrated lag screws and its limitations in Asian patients.Results:Seventy four patients were available for at least 1 year followup examinations. Forty-five patients (60.8%) recovered prefracture status. Mean time to bony union was 18.3 ± 8.6 weeks. Intraoperative technical problems related to an unavoidable superior positioning of the lag screw occurred in five cases. Postoperative complications requiring reoperation occurred in three patients; two cases of varus collapse with cut out and one case of periprosthetic fracture.Conclusions:The IM nail with two integrated lag screws showed favorable outcomes in Asian patients with an intertrochanteric fracture even though several complications that were not previously reported with this nail were found. The proper selection of patients and careful insertion of two lag screws should be mandatory in Asian patients.     

Analysis of factors among 30-day and 1-year mortality rates in patients with borderline stable-unstable intertrochanteric hip fracture

ObjectiveThis study aimed to evaluate the possible effects of surgical procedures on mortality and to identify the possible risk factors for mortality in the management of geriatric hip fractures.MethodsA total of 191 patients (105 women and 86 men; mean age 82.26±9.681 [60–108] years) with AO/OTA 31A2.2 intertrochanteric fractures and treated with sliding hip screw, proximal femoral nail, or hemiarthroplasty were included in this retrospective cohort study. The treatment type was decided by the responsible surgeon according to the patients’ pre-injury activity level, bone quality, and features of the fracture. Age, sex, type of fracture, type of surgery performed, American society of anesthesiology (ASA) grade, type of anesthesia, time to surgery, type of physical therapy, length of hospital stay, and number of comorbidities were documented. We evaluated the 30-day and 1-year mortality of patients treated with sliding hip screw (SHS), proximal femoral nail antirotation (PFN-A), or hemiarthroplasty and identified the possible risk factors for mortality.ResultsA total of 49 patients underwent SHS, 58 underwent PFN-A, and 84 underwent hemiarthroplasty. Of these, 2 patients with SHS, 2 with PFN-A, and 11 with hemiarthroplasty died within 30 days after surgery, whereas 7 patients with SHS, 15 with PFN-A, and 23 with hemiarthroplasty died 1 year after surgery. The 30-day and 1-year overall mortality rates were 7.9% and 23.6%, respectively. Both the 30-day and 1-year mortality risks were higher in patients undergoing hemiarthroplasty than in patients undergoing SHS (p=0.068 versus 0.058). The 30-day mortality was higher in patients receiving general anesthesia than in those receiving combined spinal and epidural anesthesia (p=0.009). The 1-year mortality risk was higher in patients with ASA grade 4 than in those with grade 1 and 2 (p=0.045). Advanced age (p=0.022) and male sex (p=0.007) were also found to be the risk factors for 1-year mortality.ConclusionWe demonstrated that higher ASA grade, male sex, general anesthesia, and hemiarthroplasty procedures are associated with higher mortality rates in elderly patients with hip fractures. Thus, we highly recommend orthopedic surgeons to consider all these factors in the management of intertrochanteric hip fractures in the geriatric population.Level of EvidenceLevel IV, Prognostic Study     

Trends in Irish hip fracture surgery over a 7-year period and international registry comparison

BackgroundHip fractures are a significant cause of morbidity and mortality in elderly patients. Timely surgical fixation and early mobilisation are the cornerstone to successful outcomes. The Irish Hip Fracture Database (IHFD) was established in 2012 and publishes annual reports on hip fracture care. This paper describes the trends in surgical fixation in Ireland during a 7-year period (2013–2019), assesses for compliance with guidelines and compares the most recent published reports from ten international hip fracture registries.MethodsAll published IHFD reports were systematically reviewed and tabulated. Data corresponding to demographics, fracture type, surgical fixation and post-operative management was plotted and analysed. Ten international hip fracture registries were identified and reviewed. Data was extracted corresponding to the IHFD dataset.ResultsA total of 21,684 hip fractures were recorded during this period. The majority of patients were female (70.16%), >80 years old (58.26%), admitted from their own home (82.13%) and ASA grade 3 (53%). The majority of undisplaced and displaced intracapsular fractures were treated with hemiarthroplasty, 62% and 88% respectively. There has been a decline in the use of dynamic hip screw (DHS) for intertrochanteric fractures with intramedullary nails being favoured.ConclusionDespite greater awareness of hip fracture care through the IHFD and the introduction of Best Practice Tariffs (BPT), further improvements are needed. Ireland compares well to international standards but has low rates of compliance to NICE guidelines for surgical fixation.     

芯钻髓内钉治疗股骨干闭合骨折的并发症防治

目的:总结芯钻髓内钉治疗闭合股骨干骨折的并发症,并探讨其处理策略。方法:2014年8月至2018年6月,215例股骨干闭合骨折患者采用闭合复位芯钻髓内钉内固定,男129例,女86例;年龄18～62(44.2±10.6)岁;受伤到手术时间3～21 d。其中102例A型骨折,82例B型骨折,31例C型骨折。记录手术时间、术中出血量、住院时间、骨折愈合时间及末次随访膝关节功能HSS评分。并发症观察包括:术中医源性骨折,芯钻断裂,芯钻打卷,术后感染和骨折不愈合等。结果:患者手术时间为(63.2±15.6) min,术中出血量为(150.0±34.5) ml。手术切口均达甲级愈合,所有患者获得随访,时间(18.5±3.2)个月,住院时间(4.3±1.2) d,骨折愈合时间(5.6±2.3)个月。末次随访时膝关节HSS评分90.3±4.7。发生相关并发症37例,发生率为17.2%。其中芯钻相关并发症13例(6.0%),包括芯钻断裂5例(2.3%),采用远端切开取出断裂芯钻1例,股骨开槽取出4例;芯钻打卷8例(3.7%),远端切开剪断内芯,完整取出,改徒手置钉。常规髓内钉类似的并发症:术中医源性骨折12例(5.6%):骨折端劈裂10例,髓内钉远端周围骨折2例。骨折端发生劈裂患者判断其稳定性良好未行处理,远端周围骨折患者术中辅助钢板固定;术后迟发性感染1例(0.4%),清创更换外固定并进行骨搬移后愈合;骨折不愈合11例(5.1%),其中肥大型骨不连7例(3.3%),采用附加钢板后愈合;萎缩性骨不连4例(1.9%),附加钢板加植骨后愈合。结论:芯钻髓内钉治疗股骨干闭合骨折临床疗效佳,并发症包括芯钻相关的并发症及常规髓内钉类似的并发症,精确术前评估、术中仔细操作及术后尽早对症处理可有效降低相关并发症的发生。     

Occurrence of secondary fracture around intramedullary nails used for trochanteric hip fractures: a systematic review of 13,568 patients

IntroductionA sliding hip screw (SHS) is currently the treatment of choice for trochanteric hip fractures, largely due to the low incidence of complications. An alternative treatment is the use of intramedullary proximal femoral nails. Unfortunately these implants have been associated with a risk of later fracture around the implant. The aim of this study was to see if any improvements have been made to the current intramedullary nails, to reduce the incidence of secondary fracture around the distal tip of the nail.MethodsWe analysed data related to 13,568 patients from 89 studies, focusing on the incidence of post operative secondary femoral shaft fracture following the use of intramedullary nails in the fixation of trochanteric hip fractures.ResultsThe overall reported incidence of secondary fracture around the nail was 1.7%. The incidence of fracture has reduced in the 3rd generation Gamma nails when compared to the older Gamma nail (1.7% versus 2.6%, p value 0.03). However, the incidence of secondary fracture in the 3rd generation Gamma nails is still significantly higher than the other brands of short nail (1.7% versus 0.7%, p value 0.0005). Long nails had a slight tendency towards a lower risk of fracture although the difference was not statistically significant (1.1% versus 1.7%, p value 0.28). There was a significantly lower risk of fracture for those nails with a biaxial fixation as opposed to uniaxial fixation (0.6% versus 1.9%, p value <0.0001).ConclusionSecondary fracture around a proximal femoral nail is one of the most significant of fracture healing complications, and this study suggests that continuing design changes to this method of fixation has reduced the risk of this complication occurring.     

两种髓内钉固定股骨干骨折合并同侧髋部骨折的疗效比较

目的比较防旋型股骨近端髓内钉(proximal femoral nail antirotation,PFNA)与重建钉微创治疗青壮年股骨干骨折合并同侧髋部"囊外型"骨折的疗效。方法回顾性分析2000年1月-2010年8月采用PFNA和重建钉微创治疗的69例青壮年股骨干骨折合并同侧髋部"囊外型"骨折患者临床资料,其中重建钉组44例,PFNA组25例。两组患者性别、年龄、体重、致伤原因、骨折类型及受伤至手术时间比较,差异均无统计学意义(P>0.05),具有可比性。对两组手术时间、术中失血量、骨折愈合时间、并发症及髋、膝关节功能等进行比较。结果 PFNA组手术时间及术中失血量均明显少于重建钉组,差异有统计学意义(P<0.05)。69例均获1年以上随访,PFNA组随访时间12～38个月,平均20个月;重建钉组随访时间12～48个月,平均22个月。两组均无伤口感染、深静脉血栓形成、肺栓塞、内固定断裂、股骨头缺血性坏死及肢体严重旋转与短缩畸形等并发症发生。术中PFNA组植钉困难1例,重建钉组近端锁钉技术困难7例;术中PFNA组医源性股骨干骨折3例,重建钉组6例;术后PFNA组股骨干骨折延迟愈合1例,重建钉组2例;PFNA组和重建钉组并发症发生率分别为20%(5/25)和34%(15/44),比较差异无统计学意义(χ2=1.538,P=0.215)。两组各部位骨折愈合时间比较差异均无统计学意义(P>0.05)。末次随访时,两组髋关节Harris评分和膝关节Evanich评分比较差异均无统计学意义(P>0.05)。结论 PFNA与重建钉固定股骨干骨折合并同侧髋部"囊外型"骨折的临床疗效均满意,但PFNA具有操作简便等优点。     

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.     

Gamma3型髓内钉内固定治疗老年股骨粗隆间骨折76例分析

目的评估Gamma3型髓内钉内固定治疗老年股骨粗隆间骨折的临床效果。方法自2010—01—2012—12采用Gamma3型髓内钉内固定治疗老年（年龄〉65岁）St骨粗隆间骨折76例,并进行随访分析。结果1例于术后40d因呼吸衰竭死亡,余75例均获得随访6—24个月,平均15个月。随访患者骨折均愈合,愈合时间10-18周,平均14周。其中2例分别出现8°、10°髋内翻畸形,1例术后1年因内科疾病死亡。术后疗效根据髋关节功能Harris评分标准评定：优37例,良31例,可5例,差2例,优良率90．7％。结论Gamma3型髓内钉内固定治疗老年股骨粗隆间骨折具有手术创伤小、手术时间短、固定牢固、术后并发症少等优点,是治疗股骨粗隆间骨折的理想内固定物。     

One year after proximal or distal periprosthetic fracture of the femur -two conditions with divergent outcomes?

IntroductionArthroplasty of the hip and knee is 1 of the 20 most frequent operations in Germany. Periprosthetic fracture is one of the most feared complications following primary or revision arthroplasty. Present publication aims to analyse differences between patients with periprosthetic fracture around total knee arthroplasty (PFTKA) and patients with periprosthetic fracture around total hip arthroplasty (PFTHA) concerning demographics, clinical course, complications and return to pre-fracture mobility.MethodsProspective single-centre observation study of periprosthetic femoral fractures with stable implants. Present subgroup analysis includes patients with PFTKA and PFTHA. All patients were treated with polyaxial angular stable plates using two standardized techniques: a minimally invasive percutaneous distal insertion technique and a mini-open technique. Data collection included implant- and operation-related information as well as demographics, clinical course, complications and return to pre-fracture mobility. Data were collected during a 12-month follow-up.ResultsWe were able to analyse the data of 73 patients. The PFTKA group had 37 patients with a mean age of 76 ± 10 years; 88% were female. After 1 year, 3 patients in this cohort had died; 68% of survivors had reached their pre-fracture mobility; 22% had undergone operative revisions for various reasons. The PFTHA cohort included 36 patients with a mean age of 80 ± 13 years, 72% were female. After 1 year, 9 patients had died in this cohort, 42% of survivors had reached their pre-fracture mobility. Non-operative complications occurred for 16% in the PFTKA group and 64% in the PFTHA group (p < 0.001). 11% had undergone operative revisions for various reasons, among them, two cases of nonunion but no primary infection.ConclusionOn average, compared to the PFTHA patients, PFTKA patients were younger, underwent significantly lower rates of non-operative complications, had a tendency towards lower mortality, and returned to pre-fracture mobility at higher rates, although they tended to have more revisions when compared to treatment for PFTHA. Overall, when periprosthetic fractures of the femur were treated using polyaxial locking plate osteosynthesis, patients showed very low rates of nonunion and no primary infection.