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Assessment of Functional Outcomes of Custom-made Articulating Spacers in Two Stage Arthroplasty for Treatment of Infected Hip Joint

Assessment of Functional Outcomes of Custom-made Articulating Spacers in Two Stage Arthroplasty for Treatment of Infected Hip Joint

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07453329
Enrollment
25
Registered
2026-03-06
Start date
2022-10-31
Completion date
2024-10-31
Last updated
2026-08-11

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

Conditions

Arthoplasty, Infected Hernioplasty Mesh, PJI

Keywords

Athroplasty, PJI, spacer, CUMARS, two-stage

Brief summary

The goal of this prospective observational study is to evaluate whether the use of a Custom-Made Articulating Spacer (CUMARS) can achieve satisfactory functional outcomes and effective infection control in patients undergoing two-stage revision for infected hip joints. The main questions it aims to answer are: Does the use of CUMARS provide acceptable functional outcomes during the interim period and after definitive reimplantation? Does CUMARS result in effective infection eradication with acceptable perioperative parameters and complication rates? Participants will: Undergo first-stage removal of the infected hip prosthesis and implantation of a Custom-Made Articulating Spacer Receive targeted systemic antibiotic therapy based on culture results Be followed up clinically and radiologically to assess function, complications, and infection status Undergo second-stage definitive hip reimplantation after confirmation of infection eradication

Detailed description

Purpose: This prospective study aimed to evaluate the functional outcomes, perioperative parameters, complication rates, and infection eradication achieved with the use of Custom-Made Articulating Spacer (CUMARS) in two-stage revision of infected hip joints. Methods: This prospective single-arm study was conducted at a tertiary referral center and included 25 patients with chronic hip joint infections . All patients underwent two-stage revision with implantation of a CUMARS construct at the first stage. Functional outcomes were assessed using the Modified Harris Hip Score (mHHS) and Visual Analogue Scale (VAS) for pain. Perioperative parameters, complication rates, and infection eradication were also evaluated during the 2 stage procedure . Minimum follow-up after reimplantation was 24 months.

Interventions

PROCEDUREthe use of Custom-Made Articulating Spacer (CUMARS) in two-stage revision of infected hip joints.

Participants will: Undergo first-stage removal of the infected hip prosthesis and implantation of a Custom-Made Articulating Spacer Receive targeted systemic antibiotic therapy based on culture results Be followed up clinically and radiologically to assess function, complications, and infection status Undergo second-stage definitive hip reimplantation after confirmation of infection eradication

Sponsors

Ain Shams University
Lead SponsorOTHER

Study design

Allocation
NA
Intervention model
SINGLE_GROUP
Primary purpose
TREATMENT
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
20 Years to 80 Years
Healthy volunteers
No

Inclusion criteria

* Age from 20-80 years old * Patients with PJI after hip arthroplasty according to MSIS criteria 2018 OR ICM 2018. * PJI \> 4 weeks post operative * Patients with chronic septic hip arthritis (either native or on top of infected proximal femur implant)

Exclusion criteria

* Age less than 20 years * Early postoperative PJI * Acute Hematogenous PJI * Fungal infection * Acute septic hip * gouty arthritis

Design outcomes

Primary

MeasureTime frameDescription
Functional outcomes of CUMARS during interstage periodboth measured preoperative and 1 month -postoperative first stage for each patientFunctional outcomes were assessed using the Modified Harris Hip Score (mHHS) ( ranges from a minimum of 0 points (worst possible function/highest pain) to a maximum of 100 points (best possible function/no pain).

Secondary

MeasureTime frameDescription
Impact on second stagePerioperative parameters surgery time meaured during 1st stage and 2nd stage proceduresPerioperative parameters surgery time meaured in minutes
Efficiency in controlling infection.infection eradication rate 12 month post 2nd stageInfection eradication rate in percentage (The number of participants experiencing reinfection divided by the total number of participants in the study arm, multiplied by 100".
Complication rate during interstage periodComplication rates during interstage periodComplication rates in percentage ( The number of participants experiencing one or more surgical complications divided by the total number of participants in the study arm, multiplied by 100")

Countries

Egypt

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Aug 12, 2026