Aseptic Loosening of Prosthetic Joint, Joint Instability, Periprosthetic Fractures, Prostheses-related Infections, Prosthesis Failure, Revision Hip Arthroplasty
Conditions
Keywords
Hip Prosthesis, Revision Hip Arthroplasty, Revision Hip Prosthesis, Post-Market Clinical Follow-Up (PMCF), Harris Hip Score (HHS)
Brief summary
This is a multicenter, prospective, observational, post-market clinical follow-up (PMCF) study designed to evaluate the safety and clinical performance of the Tipmed™ Revision Hip Prosthesis System in adult participants undergoing revision hip arthroplasty. The study aims to gather real-world clinical evidence on the 24-month post-operative safety profile, potential complications, and functional outcomes of the device during routine clinical practice.
Detailed description
This prospective, multi-center, observational, Post-Market Clinical Follow-Up (PMCF) study evaluates the short-to-medium-term safety and efficacy data of the Tipmed™ Revision Hip Prosthesis System in adult patients undergoing revision hip arthroplasty (total or partial) across participating clinical centers in Turkey. A total of 35 eligible participants will be enrolled in accordance with the pre-defined inclusion and exclusion criteria. Pre-operative demographic details, comprehensive medical history, previous arthroplasty data, and specific indications for revision surgery (such as aseptic loosening, infection, dislocation, or periprosthetic fractures) will be captured retrospectively from patient medical charts. Following the baseline revision surgical procedure, subjects will undergo a 24-month clinical follow-up period consisting of 6 routine post-operative assessment windows: at 6 weeks, 3 months, 6 months, 12 months, 18 months, and 24 months. At each longitudinal visit, investigators will complete a study-specific Case Report Form (CRF) to document objective clinical and survival indicators. Clinical performance and joint functionality profiles will be quantitatively monitored utilizing the Harris Hip Score (HHS). Safety endpoints will be continuously evaluated by identifying, classifying, and reporting any adverse events (AEs), serious adverse events (SAEs), implant-related complications (including re-revision rates, dislocation, aseptic loosening, infection, or nerve/vascular injuries), and hardware deficiencies. Radiological findings (implant positioning, component orientation, migration, osteointegration, and status of acetabular/femoral bone loss) and laboratory indicators (such as C-Reactive Protein and Sedimentation Rate) will be documented when available as part of standard medical surveillance. Demographic characteristics, baseline clinical parameters, and longitudinal efficacy/safety outcomes will be summarized using descriptive statistics. Stratified analyses will be conducted based on the specific type of revision surgical intervention. Separate subgroup analyses will be executed for study participants who undergo partial revision hip arthroplasty to isolate and evaluate their clinical outcomes independently from the patients treated with total revision hip arthroplasty. Categorical variables across these subgroups will be compared using the Chi-square test or Fisher's exact test, as appropriate.
Interventions
DEVICETıpmed™ Revision Hip Prosthesis System
Post-market evaluation of the commercially available, CE-marked Tıpmed™ Revision Hip Prosthesis System during routine revision orthopedic care. Surgeon-directed device configurations are utilized based on patient-specific bone loss and anatomy, incorporating various mono-block or modular femoral stems, modular femoral body components, and femoral necks. Acetabular reconstruction elements encompass various configurations including acetabular cups, bipolar cups, and titanium metal shells with modular inserts, paired with dedicated bone-anchoring options such as acetabular rings, reinforcement cages, and anatomical rings based on standard clinical routine. In strict adherence to the prospective observational design of this registry, no investigational, experimental, or non-routine surgical interventions are performed.
Sponsors
TIPMED Medical Device Manufacturing Ltd. Co.
Study design
Observational model
OTHER
Time perspective
PROSPECTIVE
Eligibility
Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No
Inclusion criteria
* Individuals aged 18 years and older, * Male or female participants, * Participants who have undergone Revision Hip Arthroplasty (either total revision or partial component revision) for any indication (such as a documented joint failure or prosthesis-related clinical complication), * Participants in whose revision procedure the Tıpmed™ Revision Hip Prosthesis System components were utilized, * Participants who are not legally restricted (e.g., military personnel, convicts, or individuals under legal guardianship), * Participants who have voluntarily signed the written Informed Consent Form (ICF).
Exclusion criteria
* Subjects currently participating in any other interventional clinical trial.
Design outcomes
Primary
| Measure | Time frame | Description |
|---|---|---|
| Functional Joint Performance via Harris Hip Score (HHS) at 24 Months | 24 months post-operatively | The proportion of participants achieving 'Excellent' (≥ 90 points) or 'Good' (80-89 points) clinical performance based on the Harris Hip Score (HHS) will be evaluated to demonstrate device efficacy. The HHS is a clinician-administered tool that quantitatively scores hip function across domains including pain, function, functional activities, absence of deformity, and range of motion (ROM), with a total score ranging from 0 (worst possible outcome) to 100 (best possible outcome). |
| Incidence of Adverse Events (AEs) and Serious Adverse Events (SAEs) | From the signing of informed consent up to 24 months post-operatively. | Continuous monitoring, documentation, and cumulative tracking of the incidence and frequency of all adverse events (AEs) and serious adverse events (SAEs) occurring throughout the study surveillance period, regardless of their causal relationship to the investigational revision medical device or surgical procedure. Events will be systematically classified by intensity/severity (mild, moderate, severe), outcome characteristics, and causality relationship pattern. |
| Incidence of Clinical Complications | From the time of signing the informed consent form up to 24 months post-operatively. | Evaluation of the rate, frequency, and types of all clinical complications recorded throughout the study. This includes intraoperative complications captured retrospectively from surgical medical charts (such as femoral or acetabular perforation/fractures, vascular injuries, and nerve lesions including peroneal or sciatic nerve injuries) as well as longitudinal complications documented during the prospective follow-up phase (such as joint dislocation, aseptic loosening, implant failure/breakage, deep or superficial surgical site infections, and subsequent re-revision/reoperation rates) associated with the routine clinical utilization of the Tıpmed™ Revision Hip Prosthesis System. |
Secondary
| Measure | Time frame | Description |
|---|---|---|
| Longitudinal Changes in Hip Functioning via Harris Hip Score (HHS) | Retrospective pre-operative baseline, and prospective assessments at 6 weeks, 3, 6, 12, 18, and 24 months post-operatively. | Periodic monitoring of absolute HHS tracking metrics and category shifts to determine the prospective trajectory of functional recovery over time. The total HHS ranges from 0 (worst possible outcome) to 100 (best possible outcome) and is categorized as follows: Excellent (90-100); Good (80-89); Fair (70-79); Poor (60-69); and Very Poor (\<60). Transition tables will be generated utilizing these classifications to map longitudinal shifts from the retrospectively captured pre-operative baseline value (extracted from patient medical charts) across all prospective post-operative follow-up intervals. |
Countries
Turkey (Türkiye)
Contacts
CONTACTYasemin Onel, Sponsor Rep
STUDY_DIRECTORAhmet Karakaşlı, Professor
Dokuz Eylul University
Outcome results
None listed