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Long-term Outcomes of Complex Conversion Total Hip Arthroplasty

Long-term Outcomes of Complex Conversion Total Hip Arthroplasty

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ClinicalTrials.gov
Registry ID
NCT06533020
Acronym
LOCC
Enrollment
210
Registered
2024-08-01
Start date
2024-10-06
Completion date
2027-07-31
Last updated
2025-12-09

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Arthroplasty Complications

Brief summary

The purpose of the research study is to examine the long-term outcomes of complex and conversion total hip arthroplasty procedures. By means of both retrospective (chart review) and prospective (in-person clinic visits) radiographs and validated patient-reported outcome scores including the Hip Disability and Osteoarthritis Outcome Score (HOOS) and the Patient-Reported Outcomes Measurement Information System (PROMIS), the research team aims to collect, analyze, and summarize the outcome data. The outcomes of the follow-up appointment will be analyzed in comparison to previous findings over various intervals to assess changes over time, if data is available.

Interventions

None listed

Sponsors

University of North Carolina, Chapel Hill
Lead SponsorOTHER

Study design

Observational model
COHORT
Time perspective
RETROSPECTIVE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Having undergone a conversion total hip arthroplasty (THA) more than five years ago or a complex THA more than ten years ago done by a UNC Health-affiliated physician * Willingness to receive follow-up care from a UNC Health-affiliated physician or provide outcome data regarding this surgical intervention * Able to speak and read English * Able to consent to participation

Exclusion criteria

* Less than 18 years of age * Incarcerated status

Design outcomes

Primary

MeasureTime frameDescription
PROMIS SF v1.1-Pain Interference 8aonce during the 36-month total study duration, preferably during initial recruitment, but open to collection at any time during the study timeframeThe Patient-Reported Outcomes Measurement Information System (PROMIS) SF v1.1-Pain Interference 8a measures the amount of pain interference in daily life. Possible scores range from not at all (1) to very much (5), with higher scores indicating a worse outcome (more pain interference).
PROMIS SF v2.0 - Physical Function 20aonce during the 36-month total study duration, preferably during initial recruitment, but open to collection at any time during the study timeframeThe Patient-Reported Outcomes Measurement Information System (PROMIS) SF v2.0 - Physical Function 20a measures the level of individual physical function in daily life. Possible scores range from without any difficulty (1) to unable to do (5) and not at all (1) to cannot do (5), with higher scores indicating a worse outcome (less physical function ability).
HOOSonce during the 36-month total study duration, preferably during initial recruitment, but open to collection at any time during the study timeframeThe Hip Disability and Osteoarthritis Outcome Score (HOOS) measures an individual's feelings about their hip and how well they are able to do usual activities, based on symptoms, stiffness, pain, daily living function, sports and recreational activities function, and quality of life. Possible scores range from never (1) to always (5) and none (1) to extreme (5), with higher scores indicating a worse outcome.
Radiographic Findingsonce during the 36-month total study duration, preferably during screening for initial recruitment, but open to collection at any time during the study timeframeStandard radiographs of implanted hip to assess device efficacy and other potential anomalies. Collected during in-person clinic visits or from chart review if the patients have had hip radiographs at UNC in the past two years.

Secondary

MeasureTime frameDescription
Number of participants with comorbiditiesUp to 36-months total study durationIndividual health statuses (as diagnosed and present in the electronic medical record (EMR) throughout patient lifespan) thought to complicate the surgical procedure and recovery. Retrospectively collected during chart review including 20 statuses such as Diabetes Mellitus, Autoimmune Disorders, Current Immunosuppression, Current Dialysis/End Stage Renal Disease (ESRD), Chronic Kidney Disease (I-III), Heart Failure, Coronary Artery Disease, etc.
Number of participants with complicationsUp to 36 months total study durationIndividual health events (as present in the EMR throughout patient lifespan) and risk factors complicating the surgical procedure and recovery. Retrospectively collected during chart review including several events such as Iatrogenic fracture, Bleeding (Blood Transfusion), Surgical Site Infection, THA Periprosthetic Fracture, Wound Complication, etc, and risk factors such as Hip surgery prior to THA, age \> 70, Drug/alcohol use, etc.

Countries

United States

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 4, 2026