Predicting inpatient rehabilitation length after hip or knee replacement

Transforming Rehabilitation: Personalised Care for a Better Quality of Life (PREPARE, Phase 2)

Observational I.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio · NCT07304323

This project will try to use past hospital records to train and test a model that predicts how long adults who had hip or knee replacement for osteoarthritis will need inpatient rehabilitation.

Quick facts

Study typeObservational
Enrollment400 (estimated)
Ages18 Years and up
SexAll
SponsorI.R.C.C.S Ospedale Galeazzi-Sant'Ambrogio Academic / other
Locations1 site (Milan)
Trial IDNCT07304323 on ClinicalTrials.gov

What this trial studies

Researchers will extract retrospective clinical and surgical data from patients who underwent total hip or knee replacement at IRCCS Galeazzi and were discharged to inpatient rehabilitation in 2018. They will analyze demographic, surgical, laboratory, pain, cognitive, and functional measures (including Barthel Index and physiotherapy evaluations) to train and externally validate a predictive model for inpatient rehabilitation length of stay. The primary outcome is rehabilitation length of stay and secondary outcomes include place of discharge, burden of care at discharge, and functional recovery. No new patients will be recruited because the analysis uses existing clinical records stored in the hospital databases.

Who should consider this trial

Good fit: Adults (≥18 years) who had total hip or knee replacement for osteoarthritis at IRCCS Galeazzi in 2018 and were subsequently discharged to inpatient rehabilitation are the focus of this analysis.

Not a fit: Patients under 18, those who had other types of surgery, those treated at other hospitals, or those with incomplete clinical records are not represented and are unlikely to benefit directly from this dataset or model.

Why it matters

Potential benefit: If successful, the model could help clinicians anticipate rehabilitation needs and improve discharge planning to shorten stays and tailor post-operative support.

How similar studies have performed: Similar predictive-model approaches for length of stay after joint replacement have shown promise in prior studies, though robust external validation across centers is still limited.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Patients admitted for THR and TKR at IRCCS Galeazzi Orthopedic Institute in 2018 (any month) and subsequently discharged to inpatient rehabilitation in the same structure.
* Aged ≥18 years.
* International Classification of Disease, Ninth Revision, Clinical Modification (ICD-9CM) Diagnoses: 715.15, 16, 25, 26 (primary and secondary osteoarthritis of the hip and knee).
* ICD-9CM Surgical procedures: 81.51, 81.54 (total joint replacement of the hip and knee).

Exclusion Criteria:

* Age \< 18 years (if any).

Where this trial is running

Milan

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions HIP AND KNEE OSTEOARTHRITIStotal joint arthroplastyosteoarthritistotal joint replacementinpatient rehabilitationpredictive modelrehabilitation outcomes
Last reviewed 2026-06-13 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.