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Prospective Catalystem CT-RSA

7 luglio 2026 aggiornato da: Canadian Radiostereometric Analysis Network

Multi-center, Non-controlled, Prospective CT-based Radiostereometric Analysis of Catalystem Primary Hip System

Multi-Centre Study in patients undergoing Total Hip Arthroplasty with the Smith+Nephew CATALYSTEM™ Primary Hip System. The primary objective is to establish the mean inferior stem migration (subsidence) of the CATALYSTEM™ stem using CT-RSA over the first two postoperative years.

Panoramica dello studio

Stato

Non ancora reclutamento

Condizioni

Intervento / Trattamento

Descrizione dettagliata

This study is designed as a prospective, multi-center, non-controlled study of subjects implanted with the CATALYSTEM™ Primary Hip System for primary Total Hip Arthroplasty (THA). Subjects will be enrolled and followed for 2 years post-operatively.

Radiostereometric analysis (RSA) is a tool to measure implant migration, originally developed in the 1970s. It is now well-established that early migration (micromotion) of implants with respect to bone is a predictor for later aseptic loosening. Traditional RSA used dual x-ray to estimate implant migration and has been standardized. CT-based methods (CT-RSA), which do not require metal reference beads have been developed since, and have been validated with equivalent results. International guidelines have since been updated to reflect this move to CT-RSA.

The primary objective is to establish the mean inferior stem migration (subsidence) of the CATALYSTEM™ stem using CT-RSA over the first two postoperative years.

Tipo di studio

Interventistico

Iscrizione (Stimato)

30

Fase

  • Non applicabile

Contatti e Sedi

Questa sezione fornisce i recapiti di coloro che conducono lo studio e informazioni su dove viene condotto lo studio.

Contatto studio

Backup dei contatti dello studio

Luoghi di studio

    • Manitoba
      • Winnipeg, Manitoba, Canada, R2K 2M9
        • Orthopaedic Innovation Centre
        • Investigatore principale:
          • Thomas Turgeon, MD
        • Sub-investigatore:
          • Eric Bohm, MD
        • Sub-investigatore:
          • Colin Burnell, MD
        • Contatto:
        • Sub-investigatore:
          • Pakpoom Ruangsomboon, MD
        • Sub-investigatore:
          • Bryan Flynn, MD
        • Sub-investigatore:
          • Christopher Graham, MD
        • Sub-investigatore:
          • Elias Saidy, MD

Criteri di partecipazione

I ricercatori cercano persone che corrispondano a una certa descrizione, chiamata criteri di ammissibilità. Alcuni esempi di questi criteri sono le condizioni generali di salute di una persona o trattamenti precedenti.

Criteri di ammissibilità

Età idonea allo studio

  • Adulto
  • Adulto più anziano

Accetta volontari sani

Descrizione

Inclusion Criteria:

  1. Patient requires primary unilateral THA for a severely painful and/or disabled joint from osteoarthritis, traumatic arthritis, rheumatoid arthritis, avascular necrosis, or congenital dysplasia.
  2. Patients is at least 21 years old at the time of informed consent.
  3. Patient is able to read and comprehend the informed patient consent document and willing and able to provide informed patient consent for participation in the study and have authorized the transfer of his/her information for study purposes.
  4. Patient is able and willing to return for follow-up as specified by the study protocol.
  5. Patient is able and willing to complete the required questionnaires and patient-completed portions of the study protocol.

Exclusion Criteria:

  1. Patient requires implants other than the planned components or would not be a candidate for allowable components to be used (see 4) in the judgement of the surgeon.
  2. Patient is planned to have simultaneous bilateral hip arthroplasty
  3. Patient had contralateral hip arthroplasty less than 6 months prior to the day of surgery.
  4. Patient is expected to have contralateral hip arthroplasty in the following 6 months at the time of consent into this study.
  5. Patient has active local or systemic infection.
  6. Patient has amputations in either leg that would impact rehabilitation following surgery.
  7. Patient has loss of musculature, neuromuscular compromise or vascular compromise that would impact rehabilitation following surgery.
  8. Patient has poor bone quality, such as osteoporosis, where in the surgeon's opinion, there could be considerable migration of the prosthesis, or require additional fixation, or a significant chance of periprosthetic fracture, or the lack of adequate bone to support the implant(s).
  9. Patient has Charcot's or Paget's disease.
  10. Patient is pregnant or lactating.
  11. Patient is bedridden.
  12. Patient has participated in a clinical investigation with an investigational product (drug or device) in the last 3 months.
  13. Patient is currently involved in any personal injury litigation, medical-legal or worker's compensation claims.
  14. Patients is, in the opinion of the surgeon, a drug or alcohol abuser or has psychological disorder(s) that could affect their ability to complete patient-reported questionnaires or be compliant with follow-up requirements.
  15. Patient is diagnosed and taking prescription medications to treat a muscular disorder that limits mobility due to severe stiffness and pain such as fibromyalgia or polymyalgia.

Piano di studio

Questa sezione fornisce i dettagli del piano di studio, compreso il modo in cui lo studio è progettato e ciò che lo studio sta misurando.

Come è strutturato lo studio?

Dettagli di progettazione

  • Scopo principale: Trattamento
  • Assegnazione: N / A
  • Modello interventistico: Assegnazione di gruppo singolo
  • Mascheramento: Nessuno (etichetta aperta)

Armi e interventi

Gruppo di partecipanti / Arm
Intervento / Trattamento
Altro: CATALYSTEM
CATALYSTEM Hip Replacement System
Sistema primario dell'anca senza cemento CATALYSTEM per partecipanti con artroplastica totale dell'anca

Cosa sta misurando lo studio?

Misure di risultato primarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Migration - CATALYSTEM Stem
Lasso di tempo: 2 Years
CT-RSA software (V3MA, Leiden, Netherlands) will be used for the analysis of CT images based on extracted 3-dimensional computer models of the Catalystem stem and surrounding bone from the images to represent the respective rigid bodies.
2 Years

Misure di risultato secondarie

Misura del risultato
Misura Descrizione
Lasso di tempo
Subsidence - CATALYSTEM Stem
Lasso di tempo: 6 months and 1 Year
RSA measured subsidence of the CATALYSTEM stem at 6 months and 1 year and to compared to literature values of other stems, using t-test where appropriate.
6 months and 1 Year
Other RSA measurements - CATALYSTEM stem
Lasso di tempo: 6 Weeks, 6 Months, 1 Year and 2 Years
Other RSA measurements of the Emphasys Stem (X and Z translations in mm, X, Y, and Z rotations in degrees, and maximal total point motion in mm) at all time points. These endpoints will be compared to literature values of other stems, using t-test where appropriate.
6 Weeks, 6 Months, 1 Year and 2 Years
Oxford Hip Score
Lasso di tempo: Pre-operative (baseline), 6 Weeks, 6 Months, 1 Year and 2 Years
The Oxford Hip Score (OHS) is a patient self-administered 12-item questionnaire with each question having a Likaert-like response option. Each item is scored from 0 to 4, and the items are summated, with lower total scores indicating poorer performance. The OHS measures pain and general activities of daily living.
Pre-operative (baseline), 6 Weeks, 6 Months, 1 Year and 2 Years
Forgotten Joint Score (FJS-12)
Lasso di tempo: 6 Weeks, 6 Months, 1 Year and 2 Years
Functional and health status will be measured with the Forgotten Joint Score (FJS-12). The FJS total score range is 0-100, higher scores indicating the patient is able to forget the joint daily lower degree of joint awareness.
6 Weeks, 6 Months, 1 Year and 2 Years
European Quality of Life (EQ-5D-5L)
Lasso di tempo: Pre-operative (baseline), 6 Weeks, 6 Months, 1 Year and 2 Years
EQ5D consists of 5 subscales; Mobility, Self-care, Usual activities, Pain/Discomfort and Anxiety / depression. A health state score is obtained based on the responses from 1-5 in each subscale, from which a single index value is calculated representing patients' overall health state. EQ5D includes a so called EQ VAS score which is the patients' self-rated health on a 20 cm vertical, visual analogue scale with endpoints labelled "the best health you can imagine" and "the worst health you can imagine".
Pre-operative (baseline), 6 Weeks, 6 Months, 1 Year and 2 Years
Patient Satisfaction (VAS)
Lasso di tempo: Pre-operative (baseline), 6 Weeks, 6 Months, 1 Year and 2 Years
Evaluate and compare the change from preoperative to 2 years between the timepoints in patient-reported Satisfaction as measured using the visual analogue scale (VAS) from 0 (Unsatisfied) - 100 (Completely satisfied)
Pre-operative (baseline), 6 Weeks, 6 Months, 1 Year and 2 Years
Complication
Lasso di tempo: Pre-operative (baseline), 6 Weeks, 6 Months, 1 Year and 2 Years
Evaluate the type and frequency of the complications/adverse events.
Pre-operative (baseline), 6 Weeks, 6 Months, 1 Year and 2 Years

Collaboratori e investigatori

Qui è dove troverai le persone e le organizzazioni coinvolte in questo studio.

Investigatori

  • Investigatore principale: Thomas Turgeon, MD, University of Manitoba

Studiare le date dei record

Queste date tengono traccia dell'avanzamento della registrazione dello studio e dell'invio dei risultati di sintesi a ClinicalTrials.gov. I record degli studi e i risultati riportati vengono esaminati dalla National Library of Medicine (NLM) per assicurarsi che soddisfino specifici standard di controllo della qualità prima di essere pubblicati sul sito Web pubblico.

Studia le date principali

Inizio studio (Stimato)

1 agosto 2026

Completamento primario (Stimato)

31 dicembre 2028

Completamento dello studio (Stimato)

31 dicembre 2028

Date di iscrizione allo studio

Primo inviato

7 luglio 2026

Primo inviato che soddisfa i criteri di controllo qualità

7 luglio 2026

Primo Inserito (Effettivo)

13 luglio 2026

Aggiornamenti dei record di studio

Ultimo aggiornamento pubblicato (Effettivo)

13 luglio 2026

Ultimo aggiornamento inviato che soddisfa i criteri QC

7 luglio 2026

Ultimo verificato

1 luglio 2026

Maggiori informazioni

Termini relativi a questo studio

Altri numeri di identificazione dello studio

  • #5179

Informazioni su farmaci e dispositivi, documenti di studio

Studia un prodotto farmaceutico regolamentato dalla FDA degli Stati Uniti

No

Studia un dispositivo regolamentato dalla FDA degli Stati Uniti

prodotto fabbricato ed esportato dagli Stati Uniti

Queste informazioni sono state recuperate direttamente dal sito web clinicaltrials.gov senza alcuna modifica. In caso di richieste di modifica, rimozione o aggiornamento dei dettagli dello studio, contattare register@clinicaltrials.gov. Non appena verrà implementata una modifica su clinicaltrials.gov, questa verrà aggiornata automaticamente anche sul nostro sito web .

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