Benefits Of Total Hip Arthroplasty Research Articles

Effect of lumbosacral transitional vertebra on developmental alterations of the hip: a quantitative investigation of the lumbo-pelvic-hip complex via whole-body computed tomography.

Lumbosacral transitional vertebra (LSTV) is a common spinal variant, with the reported prevalence varying from 8.1% to 36%. LSTV has been shown to alter the lumbo-pelvic parameters and reduce the benefits of total hip arthroplasty, but the specific effects of LSTV on hip development remain unclear. The aim of this study was thus to investigate the impact of LSTV on developmental alterations of the hip. A total of 310 individuals were categorized into three groups according to whole-body computed tomography (CT) imaging: a group with sacralization of 23 presacral vertebrae (PSV) (n=102), a group with lumbarization of 25 PSV (n=108), and a normal control group with 24 PSV (n=100). Quantitative parameters of the lumbo-pelvic-hip complex (LPHC) including lumbar lordosis (LL), pelvic incidence (PI), pelvic tilt (PT), sacral slope (SS), axial and sagittal acetabular anteversion angle (AAA), center-edge (CE) angle, Sharp angle, and femoral neck-shaft angle (FNSA) were measured and analyzed. Statistical analyses were used to compare the differences of these quantitative parameters among the three groups and to assess the relationship between hip and lumbar-pelvic parameters. Significant differences between each pair of three groups and the LSTV subgroups were only found in the sagittal AAA (left side: P=0.008; right side: P<0.001), with no differences found for the other parameters. Compared to the normal group (24 PSV), both the 23 PSV and 25 PSV groups exhibited increased values in the sagittal AAA, especially in the right side of the 23 PSV group. Only the sagittal AAA showed low-to-moderate positive correlations with pelvic parameters of PI (r=0.195-0.429; P=0.001-0.08) and PT (r=0.239-0.605; P=0.001-0.03). Variations of LSTV are correlated with the hip anatomical development via LPHC transmission and may potentially reduce the sagittal acetabular coverage, particularly in the 23 PSV subtype on the right side.

Indication Criteria for Total Hip Arthroplasty in Patients with Hip Osteoarthritis-Recommendations from a German Consensus Initiative.

Background: Osteoarthritis of the hip (hip OA) is a leading cause of pain and disability in elderly people. If non-surgical therapies become ineffective, patients may consider total hip arthroplasty (THA). The biggest challenge in recommending a THA is identifying patients for whom the benefits of this procedure outweigh the potential risks. The aim of this initiative was to develop a clinical practice guideline with accompanying algorithm to guide consultations on THA, supported by a pocket-sized checklist. Methods: The initiative “Evidence- and consensus-based indication criteria for total hip replacement (EKIT-Hip)” used a stepwise approach, starting with an inauguration workshop, where a multidisciplinary German stakeholder panel from various scientific societies agreed on the working process. A Project Coordinating Group (PCG) was formed, and it performed a comprehensive systematic literature search of guidelines and systematic reviews related to the indication criteria for THA, as well as factors influencing outcomes. Based on best-available evidence, preliminary recommendations were formulated by the PCG and discussed with the stakeholder panel during a consensus meeting. In addition, the panel was asked to assess the feasibility of an extracted algorithm and to approve a final checklist. Results: In total, 31 recommendations were approved by 29 representatives of 23 societies. These were used to underpin an algorithm (EKIT-Algorithm), which indicates the minimum requirements for a THA (confirmed diagnosis of hip OA, present and documented individual burden of illness, ineffectiveness of non-surgical therapies, and absence of any contraindications). Once these criteria are fulfilled, further considerations should encompass the medical implications of modifiable risk factors and patients’ individual treatment goals, as discussed during shared decision making. The subsequently developed checklist (EKIT-Checklist) lists relevant criteria for decision making. Conclusions: Adherence to the EKIT-Algorithm, conveniently accessed via the EKIT-Checklist, should improve the standardization of decision making leading to a recommendation for THA. By applying minimum requirements and patient-related risk factors, as well as considering patients’ individual goals, it is possible to identify patients for whom the benefits of THA may exceed the potential risks.

Increased Complications and Cost Associated With Hip Arthroplasty for Femoral Neck Fracture: Evaluation of 576,119 Medicare Patients Treated With Hip Arthroplasty.

The benefit of total hip arthroplasty (THA) for treatment of osteoarthritis (OA) and femoral neck fractures (FNFs) in the geriatric population is well established. We compare perioperative complications and cost of THA for treatment of OA to hemiarthroplasty (HA) and THA for treatment of FNF. Data from the Centers for Medicare & Medicaid Services were used to identify all patients 65 years and older undergoing primary hip arthroplasty between 2013 and 2017. Patients were divided into 3 cohorts: THA for OA (n= 326,313), HA for FNF (n= 223,811), and THA for FNF (n= 25,995). Generalized regressions were used to compare group mortality, 90-day readmission, thromboembolic events, and 90-day episode costs, controlling for age, gender, race, and comorbidities. Compared to patients treated for OA, FNF patients were older and had significantly more comorbidities (all P < .001). Even among the youngest age group (65-69 years) without comorbidities, FNF was associated with a greater risk of mortality at 90 days (THA-FNF odds ratio [OR] 9.3, HA-FNF OR 27.0, P < .001), 1 year (THA-FNF OR 7.8, HA-FNF OR 19.0, P < .001) and 5 years (THA-FNF hazard ratio 4.5, HA-FNF hazard ratio 10.0, P < .001). The average 90-day direct cost was $12,479 and $14,036 greater among THA and HA for FNF respectively compared to THA for OA (all P < .001). Among Centers for Medicare & Medicaid Services hip arthroplasty patients, those with an FNF had significantly higher rates of mortality, thromboembolic events, readmission, and greater direct cost. Reimbursement models for arthroplasty should account for the distinctly different perioperative complication and resource utilization for FNF patients.

Total hip arthroplasty

Primary total hip arthroplasty has become one of the most successful surgical procedures over the past 50 years and is currently performed worldwide with similar techniques and excellent results. Despite variations in technique and implant selection, medium and long term outcome studies have demonstrated over 90% implant survival at 15 to 25 years. Previous problems with implant fixation have now been reduced, and the focus has shifted to the selection of improved bearing surfaces to limit wear, hip replacement options for younger patients, and improved surgical and anesthetic techniques. Current surgical approaches to the hip rely most often on direct lateral or posterolateral exposure. The most commonly utilized bearing surface for both hip replacement and hip resurfacing in Canada is a metal (cobalt-chrome) femoral head combined with a second-generation cross-linked polyethylene, combined with cementless implant fixation. Alternative bearings such as ceramic-on-ceramic and metal-on-metal may be considered for hip replacement in younger patients. Although it has not been determined which surface will prove best for younger patients in the long term, there is no question about the benefits of total hip arthroplasty. With current techniques, the results are favorable, and patient satisfaction, pain relief, and long-term implant survival are excellent.

The Association Between Comorbidity and the Risks and Early Benefits of Total Hip Arthroplasty for Hip Osteoarthritis

BackgroundThe changing demographics of our society will lead to an increasing number of patients presenting for orthopedic surgery with increasing comorbidity. We investigated the association between comorbidity and both the risks (complications) and benefits (improved function) of total hip arthroplasty (THA) for primary hip osteoarthritis, whilst controlling for potential confounders including age. MethodsOne thousand five hundred and eighty-four patients (67.1 ± 10.6 years; 54% men) in our tertiary care orthopedic hospital completed the Oxford Hip Score before and 12 months after THA. Comorbidity was assessed using the American Society of Anesthesiologists (ASA) grade and Charlson Comorbidity Index (CCI). Details regarding perioperative complications (hospital stay plus 18 days after discharge; mean 27 ± 3 days) were extracted from the clinic information system and graded for severity. ResultsFor ASA1, 2, and ≥3, respectively, there were 3.1%, 3.0%, and 6.6% surgical/orthopedic complications; 3.7%, 12.5%, and 27.4% general medical complications; and 6.7%, 14.5%, and 29.8% complications of either type. ASA was associated with complication severity (P < .001). In multiple regression, increasing ASA grade (OR 1.74; 95% CI, 1.33-2.29) and age (OR 1.06; 95% CI, 1.05-1.08), both showed an independent association with increased risk of a complication; CCI explained no further significant variance. CCI, but not age, was associated with the 12-month Oxford Hip Score (beta coefficient, −0.742; 95% CI, −1.130 to −0.355; P = .002) while ASA grade explained no further variance. ConclusionGreater comorbidity was associated with increased odds of a complication and (independently) slightly worse patient-rated outcome 12 months after THA. Comorbidity indices can be easily obtained for all surgical patients and may assist with preoperative counseling regarding individual risks and benefits of THA.

Outcomes of total hip arthroplasty surgery in heart and lung transplant recipients.

Traditionally, arthroplasty in heart and lung transplant patients has been undertaken to manage transplant-related complications. More recently, arthroplasty is increasingly being performed for end-stage osteoarthritis. This study reviewed short-term outcomes and complications of total hip arthroplasty (THA) in heart and lung transplant recipients. A retrospective cohort of heart and lung transplant recipients who underwent THA was identified using ICD-10 coding. Post-operative complications and hospital outcomes were collected using the patient medical record. Thirteen patients underwent 17 primary THA between 2008 and 2017, including five for osteoarthritis and 12 for femoral head avascular necrosis. Of the 13 patients, nine were bilateral sequential lung transplant recipients and four were orthotopic heart transplant recipients. The mean patient age was 61 years, with nine being male. Overall, five patients had one post-operative complication with eight having two or more complications. Surgical complications included three intraoperative fractures, three patients with superficial infection and one with deep infection requiring surgery. Seven patients had significant bleeding requiring blood transfusion. Prosthetic dislocations occurred in two patients, with one patient requiring revision surgery (developing a joint infection). Other complications included one pulmonary embolism, two episodes of pneumonia and six episodes of acute kidney injury, whilst three patients developed post-operative delirium. At 6-week follow-up, five patients had ongoing pain and seven had limitations with mobility. At 12-month follow-up, three patients reported ongoing pain. Complications following THA after transplant are common. The risks and benefits of THA should be carefully considered preoperatively in this cohort.

Indications for joint replacement : Total hip arthroplasty

Total hip arthroplasty (THA) is avery successful and effective orthopedic operation with very good immediate as well as long-term results to alleviate pain and improve health-related quality of life. A THA is indicated in end-stage hip osteoarthritis with a high degree of persistent suffering when conservative treatment has failed and in patients who wish aTHA. This statement is generally valid for patients where the medical history, clinical examination and radiographic findings are conclusive, the pressure of suffering and the expectations are realistic. The timing of THA is based on the patient's discomfort. The treatment of these patients should include an interdisciplinary approach and the main goal is to improve the quality of life. Patients will learn to have reasonable expectations and should be well informed about the risks and benefits of THA. Realistic patient expectations seem to be apredictive factor for agood subjective outcome after THA.

Patient Preferences and Willingness to Pay for Arthroplasty Surgery in Patients With Osteoarthritis of the Hip

Little is known about the economic value patients place on effective treatment of osteoarthritis (OA) of the hip. The purpose of this study was to evaluate the value of total hip arthroplasty (THA) and hip resurfacing arthroplasty (HRA) to patients with advanced hip OA by measuring their preferences and willingness to pay (WTP) for either procedure. Seventy-three patients younger than 65 years with advanced hip OA reviewed information about the risks and benefits of THA and HRA and were asked which procedure they would choose and how much they would be willing to pay for it. Sixty-nine percent of patients chose THA (average WTP, $69 419) and 31% chose HRA (average WTP, $83 195). There was no correlation between WTP and annual income or total assets. However, patients with modest income and assets could have reported that they were willing and able to pay more than they could actually afford, and WTP dropped and correlation with income rose if we excluded high responses from the poorest respondents. These results may have important policy implications as patients are asked to share a greater burden of the cost of their care for chronic conditions such as OA.

Accuracy of Diagnostic Injection in Differentiating Source of Atypical Hip Pain

It is not uncommon to encounter patients with atypical hip or lower extremity pain, ill-defined clinicoradiological features, and concomitant hip and lumbar spine arthritis. The purpose of this study is to present our experience using the response resulting from a combined anesthetic-steroid hip injection for treatment selection in these patients. A retrospective analysis of 204 consecutive diagnostic hip injections was undertaken. Patient charts were scrutinized for outcomes of injection and treatment. Our findings suggest that the relief of symptoms following injection of local anesthetic and steroid into the hip joint has a sensitivity of 91.5%, specificity and positive predictive value of 100%, and negative predictive value of 84.6% for response to total hip arthroplasty. We thereby believe that this is a reliable test with low morbidity and can predict the potential benefit of total hip arthroplasty in this diagnostically challenging group of patients.

Predictors of functional outcome following intracapsular hip fracture in elderly women: A one-year prospective cohort study

To explore potential predictors of functional outcome one year after the injury in elderly women who sustained a displaced intracapsular hip fracture and who were treated with internal fixation, hemiarthroplasty, or total hip arthroplasty. Eighty-four women aged > or =50 years were enrolled on a consecutive basis in this one-year prospective cohort study reflecting standard day-to-day clinical practice. The main outcome measure was the rapid disability rating scale version-2 (RDRS-2) applied at hospital discharge and one year later. At hospital discharge, the total hip arthroplasty group was younger and had a better functional status than the internal fixation or hemiarthroplasty groups. One year later, the best function was still observed in the total arthroplasty group, but the differences were small and failed to achieve the level of statistical significance. During that one-year period, walking ability or mobility did not change significantly after total hip arthroplasty, but a significant proportion of the women developed cognitive impairment, including mental confusion, uncooperativeness, and depression. Overall, the most significant predictors of poor functional status one year after fracture were increasing age, living in an institution at time of injury, and poor functional status at discharge. In elderly women with a displaced intracapsular hip fracture, total hip arthroplasty is associated with a functional benefit within the first months after surgery. However, the extent to which this functional benefit is maintained over time, is less clear. These results support the need for randomised studies to quantify the extent to which, in elderly women, the early functional benefit of total hip arthroplasty is maintained in the long run or compromised by progressive cognitive impairment and other negative determinants of functional outcome.

Total hip arthroplasty with cement for juvenile rheumatoid arthritis. Results at a minimum of ten years in patients less than thirty years old.

We retrospectively reviewed the clinical and radiographic results of total hip arthroplasty with cement in patients with juvenile rheumatoid arthritis who were less than thirty years old at the time of the index procedure. Thirty-nine patients (sixty-six hips) were managed with this procedure at our institution between 1971 and 1983. Six patients (eleven hips) died before a minimum of ten years of follow-up; the remaining thirty-three patients (fifty-five hips) were followed for at least eleven years. Twenty-eight patients (forty-six hips) had at least one original component in situ after an average duration of clinical follow-up of 15.1 years, and twenty-three of these patients (thirty-eight hips) were followed radiographically for an average of 14.7 years. At the time of the latest follow-up examination, all twenty-eight patients were able to walk outside the home; twenty of these patients (thirty-five hips; 76 per cent) had no pain with activity, and eight patients (eleven hips; 24 per cent) had mild-to-moderate pain with activity. Over-all, twelve (18 per cent) of the sixty-six femoral components and twenty-three (35 per cent) of the sixty-six acetabular components were revised after an average of 12.8 and 11.8 years, respectively. The fifteen-year survival rate for the femoral components was 85 per cent with revision or radiographic loosening as the end point. The fifteen-year survival rate for the acetabular components was 70 per cent with revision as the end point and 61 per cent with revision or radiographic loosening as the end point. The benefits of total hip arthroplasty were maintained over the long term in most of our patients who had juvenile rheumatoid arthritis. However, the durability of the components in these young patients remains a concern.