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PubMed2006

A multidisciplinary, multifactorial intervention program reduces postoperative falls and injuries after femoral neck fracture.

INTRODUCTION: This study evaluates whether a postoperative multidisciplinary, intervention program, including systematic assessment and treatment of fall risk factors, active prevention, detection, and treatment of postoperative complications, could reduce inpatient falls and fall-related injuries after a femoral neck fracture. METHODS: A randomized, controlled trial at the orthopedic and geriatric departments at Umeå University Hospital, Sweden, included 199 patients with femoral neck fracture, aged >or=70 years. RESULTS: Twelve patients fell 18 times in the intervention group compared with 26 patients suffering 60 falls in the control group. Only one patient with dementia fell in the intervention group compared with 11 in the control group. The crude postoperative fall incidence rate was 6.29/1,000 days in the intervention group vs 16.28/1,000 days in the control group. The incidence rate ratio was 0.38 [95% confidence interval (CI): 0.20 - 0.76, p=0.006] for the total sample and 0.07 (95% CI: 0.01-0.57, p=0.013) among patients with dementia. There were no new fractures in the intervention group but four in the control group. CONCLUSION: A team applying comprehensive geriatric assessment and rehabilitation, including prevention, detection, and treatment of fall risk factors, can successfully prevent inpatient falls and injuries, even in patients with dementia.

Accidental Falls↗
PubMed2003

Responsiveness of the EuroQol (EQ 5-D) and the SF-36 in elderly patients with displaced femoral neck fractures.

OBJECTIVES: To evaluate the responsiveness of the EuroQol (EQ-5D) and Short-Form 36 (SF-36) instruments, i.e. their ability to capture clinically important changes, in elderly patients with a displaced femoral neck fracture. The study was part of a prospective randomised study comparing two different surgical procedures, internal fixation (IF) and total hip replacement (THP). SETTING: University hospital. PATIENTS: A total of 110 patients, mean age 80 years with an acute displaced femoral neck fracture (Garden III and IV). The inclusion criteria were age > or = 70, absence of severe cognitive dysfunction, independent living status and independent walking capability. INTERVENTION: The patients were randomised to IF or to a THR. MAIN OUTCOME MEASUREMENTS: Health-related quality of life according to EQ-5D and SF-36. Responsiveness measured by the ability of the EQ-5D and the SF-36 to detect clinically relevant differences in the study population according to an external criterion (EC) for outcome (good or less good clinical outcome). Responsiveness was measured in terms of change scores, standardised effect size (SES) and standardised response mean (SRM). RESULTS: The rated prefracture EQ-5D(index) scores and SF-36 scores showed good correspondence with the scores of age-matched Swedish reference populations. The relationship between the EC and EQ-5D(index) score and the SF-36 global score showed significant differences in both comparisons (p < 0.001). The responsiveness expressed with the SES and SRM were large for both the EQ-5D (1.37 and 0.90, respectively) and for the SF-36 global score (0.89 and 0.82, respectively). The correlation between the change scores for the SF-36 global score and the EQ-5D was 0.39 (p < 0.001). CONCLUSION: The results showed high responsiveness for both the EQ-5D and the SF-36, indicating that both instruments are suitable for use as outcome measures in clinical trials in elderly hip fracture patients.

Accidental Falls↗
PubMed1998

Unipolar versus bipolar hemiarthroplasty for the treatment of femoral neck fractures in the elderly.

This paper presents the short term results of an ongoing prospective randomized trial comparing a cemented unipolar with a cemented bipolar hemiarthroplasty for the treatment of displaced femoral neck fractures in the elderly. Forty-seven patients with an average age of 77 years completed 6-month followup. Outcomes at 6 weeks, 3 months and 6 months were assessed by completion of a patient oriented hip outcome instrument and by functional tests of walking speed and endurance. No differences in the postoperative complication rates or lengths of hospitalization were seen between the two groups. Patients treated with a bipolar hemiarthroplasty had greater range of hip motion in rotation and abduction and had faster walking speeds. However, no differences in hip rating outcomes were found. These early results suggest that use of the less expensive unipolar prosthesis for hemiarthroplasty after femoral neck fracture may be justified in the elderly.

Aged↗
PubMed2004

The effectiveness of implementing a care pathway for femoral neck fracture in older people: a prospective controlled before and after study.

OBJECTIVES: To investigate whether a care pathway for older hip fracture patients can reduce length of stay while maintaining the quality of clinical care. DESIGN: Prospective study of patients admitted 12 months before and after implementation of a care pathway for the management of femoral neck fracture. Audit data for corresponding time periods from nearby orthopaedic units was used to control for secular trends. SETTING: Teaching hospital. SUBJECTS: Patients aged 65 years and over with a femoral neck fracture. EXCLUSION CRITERIA: multiple fractures, fractures due to malignancy, re-fracture, total hip replacement, previously entered into the study, operation performed elsewhere. Three-hundred and ninety-five (99%) and 369 (97%) case records were available for full analysis. MAIN OUTCOME MEASURES: primary outcome: length of stay on the orthopaedic unit. SECONDARY OUTCOMES: ambulation at discharge, discharge destination, in-hospital complications, 30 day mortality, readmission within 30 days of discharge, post-operative days the patient first sat out of bed and walked. RESULTS: Mean length of stay increased by 6.5 days (95% confidence interval 3.5-9.5 days, P < 0.0005) in the second period with a significant improvement in ambulation on discharge (odds ratio 1.6, 95% confidence interval 1.0-2.6, P = 0.033) and a trend towards reduction in admission to long term care (odds ratio 0.6, 95% confidence interval 0.3-1.0, P = 0.058). CONCLUSIONS: This care pathway was associated with longer hospital stay and improved clinical outcomes. Care pathways for hip fracture patients can be a useful tool for raising care standards but may require additional resources.

Aged↗
PubMed2005

Femoral neck fractures complicating metal-on-metal resurfaced hips: a report of 2 cases.

Metal-on-metal hip resurfacing arthroplasty is increasingly popular for younger patients with advanced hip disease. Intra-operative or immediate postoperative femoral neck fracture after metal-on-metal hip resurfacing is a well-described technical complication, ranging from 0% to 1.5%. We report 2 cases of late femoral neck fracture occurring 8 and 15 months following the index operation, with a review of the literature. We recommend that patient selection should be of prime importance before embarking on metal-on-metal surface hip replacement to avoid such complications.

Accidental Falls↗
PubMed1996

Fixation of intracapsular femoral neck fractures with a one-hole plate dynamic hip screw.

The results of internal fixation of 55 subcapital fractures of the femoral neck with a one-hole plate dynamic hip screw are presented. Two fractures could not be satisfactorily fixed and the procedures were converted to hemi-arthroplasties, but the remainder united within 6 months. The rate of avascular necrosis after union was 3 per cent in undisplaced and 31 per cent in displaced fractures. This method of fixation appears to produce a lower non-union rate than multiple pins in suitable fractures without affecting the incidence of late avascular necrosis.

Adult↗
PubMed1992

Prediction of late complications of femoral neck fractures by scintigraphy.

A prospective study was undertaken to determine the value of scintigraphy in predicting nonunion or necrosis of the femoral head following femoral neck fractures. Scintigraphy was carried out in 49 patients before operation and in 37 one week after operation; in 18 it was done before and after operation. The uptake of isotope was estimated visually as either normal or reduced compared to the opposite side. All the patients were followed up for at least 2 years. The results indicate that pre-operative bone scintigraphy is useful in elderly patients to predict nonunion and necrosis, and therefore is recommended to select those patients who will benefit from primary arthroplasty instead of fixation of the fracture.

Aged↗
PubMed1999

Avascular necrosis of the femoral head after open reduction and internal fixation of femoral neck fractures: an inevitable complication?

Between 1980 and 1989 71 patients with a femoral neck fracture were treated at the University Hospital of Basel by a Dynamic Hip Screw (n = 54) or by three compression screws (n = 17). Fifty out of 71 patients (70%) were reviewed clinically and radiologically after an average of 116 months. 32/50 fractures (64%) had united. In 18/50 (36%) either avascular necrosis (12) or secondary fracture dislocation (6) had resulted in failure after an average of 29 months following injury. Despite these results, the patients assessment had been very good or good in 44 patients (88%) and fair only in six patients (12%). The cause of secondary dislocation proved to be mainly due to a technical failure at surgery. The incidence of avascular necrosis was significantly higher in displaced fractures compared to non-displaced fractures (p < 0.05), regardless of the quality of the reduction achieved (varus or valgus) or the time delay between accident and operation. However it was interesting to note, that more than one third of all avascular necrosis became apparent more than 3 years (4-10 years) after the accident.

Adult↗
PubMed2003

Two or three screws for fixation of femoral neck fractures?

This study compares the stability of 3 cannulated cancellous lag screws with that of 2 cannulated cancellous lag screws for fixation of subcapital femoral neck fractures. Using 10 matched pairs of human cadaveric femurs, subcapital femoral neck osteotomies were created, reduced, and then randomized to 1 of the 2 fixation methods. The constructs were tested with anterior loading to 500 N, incremental axial loading from 100 N to 1000 N, and cyclic loading at 1000 N. The specimens stabilized using 3 screws showed greater resistance to anterior loading, less inferior femoral head displacement, and less superior gapping at the osteotomy site. Although 2 screws may be an acceptable fixation method for this fracture type, the addition of a third screw provides supplemental stability and appears justified.

Absorptiometry, Photon↗
PubMed1992

Prediction of disturbed healing in femoral neck fracture. Radiographic analysis of 149 cases.

To determine factors predictive of early healing disturbances after fixation of femoral neck fracture, the radiographic and clinical data of 149 patients were subjected to a logistic regression analysis comparing them with the results 3 months postoperatively. As in previous studies, fracture reduction distinguished between fractures with or without healing disturbances. The following signs in the preoperative radiographs were predictive of unfavorable outcome: small head fragment, comminution of the calcar femorale, and varus angulation of the head. Fractures with negative predictive signs may be selected for primary arthroplasty.

Age Factors↗
PubMed1990

Mineral density of the os calcis in primary osteoarthritis of the hip and geriatric femoral neck fractures.

The calcaneal bone mineral density (BMD) was measured in 22 female patients operated on for femoral neck fractures on average 4.7 years ago, and 35 patients who had undergone total hip replacement for primary osteoarthritis on average 3.7 years ago, to test the hypothesis of an inverse relationship between bone density and osteoarthritis. After adjustment for the linear correlation between age and BMD, there was no significant difference between the groups with regard to BMD of the os calcis.

Aged↗
PubMed1993

[Anesthetic management of a patient with pemphigoid for prosthetic replacement after femoral neck fracture].

We report an 83 year-old male with pemphigoid who underwent replacement of a femoral neck prosthesis following femoral neck fracture. Problems associated with anesthetic management of patients with vesiculobullous diseases such as pemphigoid include fluid, electrolyte and protein loss, and secondary infection because of the fragility of the skin and mucous membranes. Avoidance of trauma to the skin and mucous membranes is therefore important. Intubation of the trachea may be hazardous because of the possibility of airway obstruction resulting from oropharyngeal and laryngeal bullae. The patient was successfully anesthetized with spinal anesthesia using 2.5 ml of tetracaine in a 0.4% solution of 0.45% NaCl. An evacutable mattress was used to protect the patient from pressure points in the lateral position, and to minimize the hazards from pressure by spreading the weight. Surgery proceeded uneventfully and the postoperative period was uncomplicated.

Aged↗
PubMed2004

Cementless bipolar hemiarthroplasty for displaced femoral neck fractures in the elderly.

Controversy exists regarding the use of cementless femoral fixation for hip arthroplasties in elderly patients. This study reviews the clinical and radiographic outcomes of cementless bipolar hemiarthroplasties in patients older than 65 years of age. From 1998 to 2000, 256 cementless bipolar hemiarthroplasties were performed in 248 patients with displaced femoral neck fractures who had a mean age of 77 years. The mean final follow-up was 3.5 years and Harris hip scores averaged 82 points. Two loose femoral stems were revised and the rest of the implants were radiographically stable and demonstrated evidence of bone ingrowth. Six patients had debilitating groin pain necessitating conversion to total hip arthroplasty. Cementless bipolar hemiarthroplasty can be safely performed in elderly patients and can provide predictable clinical and radiographic results.

Aged↗
PubMed1993

Subcapital femoral neck fracture following open reduction and internal fixation of an intertrochanteric hip fracture using a sliding screw and side plate.

This case report illustrates a subcapital femoral neck fracture following application of a compression screw and side plate to treat an intertrochanteric hip fracture. This is an uncommon complication in the management of intertrochanteric hip fractures. The authors describe steps in this surgical technique that minimize the possibility of this complication.

Aged↗
PubMed2003

Bilateral simultaneous combined intra- and extracapsular femoral neck fracture secondary to nutritional osteomalacia: a case report.

A case of bilateral simultaneous combined extra- and intracapsular femoral neck fractures is presented in an adult Asian male patient suffering from nutritional osteomalacia. The radiological and biochemical findings were classical for osteomalacia with Looser's zones affecting the shoulder and the pelvic girdle. Treatment consisted of bed rest and calcium and vitamin-D replacement. The fractures healed without surgery. A high index of suspicion for nutritional osteomalacia among Asian immigrants especially among the low socio-economic classes is required in the Western community. Early diagnosis and treatment prevents chronic disability and skeletal deformity.

Adult↗
PubMed2005

[Femoral head replacement in intracapsular femoral neck fractures].

Hemiarthroplasty has still its place in the therapeutic algorithm of the treatment of dislocated intracapsular femoral neck fractures. As compared to internal fixation it is accompanied by less complications and allows an immediate postoperative weight bearing. In contrast to total hip arthroplasty, this operation is not so demanding for the patient. However in the long-term perspective it is often associated with erosion of acetabulum. Therefore it is indicated mainly for biologically older patients with less physical activity without osteoarthritis of the hip. In these patients we usually prefer a cemented monoblock hemiarthroplasty. In case of biologically younger patients where it is impossible to use total hip arthroplasty due to general or local condition, modular hemiarthroplasty is indicated with a removable head allowing in case of acetabular erosion an easy conversion to total hip arthroplasty. Hemiarthroplasty must be correctly indicated and technically properly performed. First of all it is necessary to respect the relation between the centre of the prosthetic head and the apex of the greater trochanter, i.e. the head centre should be 1-2 mm below the level of apex of the greater trochanter. Further, it requires a correct anteversion and suture of the articular capsule as a prevention of postoperative dislocation.

Aged↗
PubMed1996

Augmentation of femoral neck fracture fixation with an injectable calcium-phosphate bone mineral cement.

The first goal of this study was to determine if augmentation with an injectable, in situ setting, calcium-phosphate cement that is capable of being remodeled and was designed to mimic bone mineral significantly improved the strength and stiffness of fixation in a cadaveric femoral neck fracture model. The second goal was to determine if greater increases in fixation strength were achieved as the bone density of the specimen decreased. Sixteen pairs of fresh cadaveric human femora with a mean age of 70.9 years (SD = 17.2 years) were utilized. The bone density of the femoral neck was measured with dual-energy x-ray absorptiometry. The femoral head was impacted vertically with the femoral shaft fixed in 12 degrees of adduction using a materials testing machine to create a fully displaced fracture. Following fracture, 30% inferior comminution was created in each specimen. One randomly chosen femur from each pair underwent anatomic reduction and fixation with three cannulated cancellous bone screws, 7 mm in diameter, in an inverted triangle configuration. The contralateral femur underwent the same fixation augmented with calcium-phosphate cement. Specimens were preconditioned followed by 1.000 cycles to one body weight (611.6 N) at 0.5 Hz to simulate single-limb stance loading. The stiffness in the first cycle was observed to be significantly greater in cement-augmented specimens compared with unaugmented controls (p < 0.05). After cycling, each specimen was loaded at 10 mm/min until complete displacement of the fracture surface and failure of fixation occurred. Specimens augmented with bone mineral cement failed at a mean of 4,573 N (SD = 1,243 N); this was significantly greater (p < 0.01) than the mean for controls (3,092 N, SD = 1,258 N). The relative improvement in fixation strength (augmented/control x 100%) was not inversely correlated to femoral neck bone density (p = 0.25, R2 = 0.09), was weakly correlated to the volume of cement injected (p = 0.07, R2 = 0.22), and was inversely related to the fixation failure load of the control specimen (p = 0.001, R2 = 0.54). There was a mean relative improvement in fixation strength of 169.6% (SD = 77.5). These findings suggest that calcium-phosphate cement provides initial beneficial augmentation to fixation of femoral neck fractures.

Adult↗