View clinical trials related to Hemiarthroplasty.
Filter by:The aim of this exploratory retrospective study is to gain a better understanding about the occurrence of acetabular erosion in patients after after hip hemiarthroplasty. The main objectives are i) to summarise a selection of basic patient characteristics of all patients of ≤ 75 years of age with a femoral neck fracture who have received either HA or THA, ii) to explore the proportion of patients after HA who developed acetabular erosion in the first years post-surgery and iii) to explore the proportion of patients after HA for whom acetabular erosion was the main reason for conversion surgery from HA to THA. A secondary objective is to assess the observer reliability of, and explore the association between, the Baker classification grading and Köhler line measurements. All participants approached for participation in the main phase of the study will be asked to give their written informed consent to use their patient data. Patients who are willing to participate will also be asked to complete a short paper survey to collect data that is not available from their health records.
This clinical trial investigates the safety and the preliminary clinical benefit of the hemiverse shoulder prosthesis. Implantation of this newly developed hemi-prosthesis is intended for patients who do not qualify for a regular reverse or hemi-prosthesis due to severe medical conditions, poor bone stock or critical status of the rotator cuff. The expected benefit is, that patients will have a minimally invasive surgical procedure, only addressing the humeral shaft, however with the biomechanical advantage of a total reverse shoulder prosthesis, meaning, that with a minimally invasive surgery a comparable result as with a regular total shoulder prosthesis is accomplished. Patients will be closely monitored within the study protocol for 24 months and thereafter in regular interval as with a normal prosthetic follow-up.
Rationale: In the Netherlands the two main surgical approaches for hemiarthroplasty are the posterolateral and the direct lateral approach. Currently there is no conclusive evidence which of these two approaches results in better patient outcomes. Objective: Assessing the patient outcome comparing the posterolateral with the direct lateral approach in patients being treated with cemented hemiarthroplasty after femoral neck fractures. Study design: A randomised controlled multi-center superiority trial and natural experiment with an economic evaluation alongside. Study population: All patients older than 18 years with a femoral neck fracture whereby treatment with cemented hemiarthroplasty is recommended according the national guidelines. Intervention: Treatment with cemented hemiarthroplasty using the posterolateral approach. Standard intervention to be compared to: Treatment with cemented hemiarthroplasty using the direct lateral approach. Main study parameters/endpoints: The primary outcome is the patient-rated quality of life (EQ-5D-5L) at 6 months after surgery. Secondary outcomes are: ADL functionality (KATZ), Balance test (SPPB), Tendency to Fall (FES-I), Pain (NRS), Re-interventions, Mobility, Discharge destination, Complications, and cost-effectiveness. Nature and extent of the burden and risks associated with participation, benefit and group relatedness: The different approaches in the two treatment arms of the randomised controlled trial are widely used techniques in the Netherlands and many of the outcome measures are part of the standard clinical follow-up after hip fracture. Therefore, there is no extra risk or burden for participating patients, except for the time to complete some additional follow-up measurements. The primary outcome measurement and secondary outcomes, will be assessed through questionnaires online, by hardcopy or by phone at baseline, 4 weeks, 3 and 6 months postoperatively. The assessment of the Short Physical Performance Battery (SPPB) balance test, will be performed by one of the study researchers or nurse practitioner to protect continuity and feasibility.
This investigation is a prospective, multi-center clinical investigation. It is anticipated that a total of one hundred (100) subjects will be enrolled at approximately 5-10 sites. The clinical investigation has been designed to follow the surgeon's standard of care for joint arthroplasty patients, which entails clinical evaluation on a regular ongoing basis, or as needed should the patient become symptomatic in the treated joint.
Uncemented Hemiarthroplasty, Radiological Features Comparing Lateral Versus Anterolateral Approach. Comparing leg length discrepancy, femoral offset, valgus/varus position of the stem. Also is there a difference in heterotopic ossification at 12 months.
This clinical trial investigates the safety and the preliminary clinical benefit of the hemiverse shoulder prosthesis. Implantation of this newly developed hemi-prosthesis is intended for patients who do not qualify for a regular reverse or hemi-prosthesis due to severe medical conditions, poor bone stock or critical status of the rotator cuff. The expected benefit is, that patients will have a minimally invasive surgical procedure, only addressing the humeral shaft, however with the biomechanical advantage of a total reverse shoulder prosthesis, meaning, that with a minimally invasive surgery a comparable result as with a regular total shoulder prosthesis is accomplished. Patients will be closely monitored within the study protocol for 18 months and thereafter in regular interval was as with a normal prosthetic followup.
Cortisol is a hormone that increases after trauma or surgery and has circadian rhythm. It has a form that is increased in the morning and decreased in the evening. The investigators expected to be influenced by circadian rhythm according to the time of operation, and compared morning and afternoon surgery.
Substudy and continuation of HEMI-SAB-UUS (NCT00491673) Study on radiostereometric measurements of acetabular wear in bipolar hemiarthroplasties and measurements of periprosthetic bone mineral density in cemented and uncemented hemiarthroplasties in patients with femoral neck fractures. Null hypothesis: No difference in acetabular wear or in bone mineral density changes between cemented and uncemented hemiarthroplasties