Phase 4
Completed N=100
Posterior Cruciate Retaining (PCR) Versus Posterior Cruciate Substituting (PCS) Total Knee Arthroplasty (TKA)
Arthroplasty, Replacement, Knee · Knee Arthroplasty, Total
Source: ClinicalTrials.gov NCT02429856 ↗
Enrolled (actual)
100
Serious AEs
7.0%
Results posted
May 2019
Primary outcomePrimary: Western Ontario McMaster (WOMAC) Osteoarthritis Index Pain — 84.0; 78.3 units on a scale
◆ Published Evidence
Highly cited
119citations · ~7 / year
Knee range of motion during the first two years after use of posterior cruciate-stabilizing or posterior cruciate-retaining total knee prostheses. A randomized clinical trial.
Summary
This randomized clinical trial (RCT) examined 10 year outcomes comparing SCORPIO™ Posterior Cruciate Substituting (PCS) versus Posterior Cruciate Retaining (PCR) Total Knee Arthroplasty (TKA) as the primary outcome.
Linked Publications
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Knee range of motion during the first two years after use of posterior cruciate-stabilizing or posterior cruciate-retaining total knee prostheses. A randomized clinical trial.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY Western Ontario McMaster (WOMAC) Osteoarthritis Index Pain |
84.0; 78.3 | — |
| PRIMARY WOMAC Osteoarthritis Index Function |
67.9; 72.7 | — |
| SECONDARY RAND -36 Health Survey |
42.4; 50.3 | — |
| SECONDARY Revision Rate |
5; 2 | — |
| SECONDARY Number of Complications |
6; 2 | — |
| SECONDARY Knee Range of Motion |
105.8; 105.9 | — |
Eligibility Criteria
Inclusion Criteria
- scheduled for primary TKA
- non-inflammatory arthritis
- intact Posterior Cruciate Ligament at the time of surgery
Exclusion Criteria
- required bone grafting of either the femur or tibia
- varus or valgus deformity of > 15 degrees
- previous high tibial osteotomy
- unable to understand or comply with the study requirements
- unable to provide signed informed consent
Data sourced from ClinicalTrials.gov (NCT02429856) and the linked publication. Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.