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| ID | Type | Description | Link |
|---|---|---|---|
| 2024-4071 | Other Identifier | Singapore General Hospital |
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This study aims to evaluate patient outcomes following robotic-assisted total knee arthroplasty using the VELYS system. Patients undergoing surgery will receive either kinematic alignment or functional alignment as determined by the operating surgeon as part of routine clinical care. Within each surgical technique group, patients will be randomly assigned to receive different implant insert types (medial stabilised or cruciate retaining) using a REDCap-based randomisation process. Patient-reported outcome measures will be collected before surgery and at follow-up time points after surgery to assess clinical outcomes.
This is a prospective interventional study evaluating outcomes in patients undergoing robotic-assisted total knee arthroplasty using the VELYS system. The study includes patients treated using either kinematic alignment or functional alignment techniques, which are determined by the operating surgeon based on clinical practice and are not randomized as part of the study protocol.
Within each alignment group, participants are randomized to receive one of two implant insert types: medial stabilised (MS) or cruciate retaining (CR). Randomisation is performed using a REDCap-based allocation system.
The primary objective of the study is to assess patient-reported outcomes following surgery. Secondary outcomes may include clinical and functional measures collected at predefined time points, including pre-operative and post-operative follow-up visits.
This study reflects real-world clinical practice while incorporating a randomized component for implant selection. The design allows for evaluation of both implant-related outcomes and comparisons across different alignment techniques, while maintaining clarity regarding which aspects of the intervention are randomized.
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| Kinematic Alignment + Medial Stabilized Insert | Experimental | Patients undergoing kinematic alignment with medial stabilised insert in robotic-assisted total knee arthroplasty. |
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| Kinematic Alignment + Cruciate Retaining Insert | Experimental | Patients undergoing kinematic alignment with cruciate retaining insert in robotic-assisted total knee arthroplasty |
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| Functional Alignment + Medial Stabilized Insert | Experimental | Patients undergoing functional alignment with medial stabilised insert in robotic-assisted total knee arthroplasty. |
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| Functional Alignment + Cruciate Retaining Insert | Experimental | Patients undergoing functional alignment with cruciate retaining insert in robotic-assisted total knee arthroplasty |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| Medial Stabilized Insert | Device | A medial stabilised polyethylene insert used in robotic-assisted total knee arthroplasty to provide enhanced stability during knee motion. |
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| Measure | Description | Time Frame |
|---|---|---|
| Forgotten Joint Score (FJS) | Forgotten Joint Score (FJS) The Forgotten Joint Score (FJS) is a patient-reported outcome measure assessing joint awareness in daily life following total knee arthroplasty. The score ranges from 0 to 100, with higher scores indicating better outcomes (less joint awareness). | Pre-operative, 6 weeks, 6 months, and 2 years post-operatively |
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*Inclusion Criteria:*
**Exclusion Criteria:**
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| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| Singapore General Hospital | Recruiting | Singapore | Singapore |
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Participants receive either kinematic or functional alignment based on the operating surgeon as part of routine clinical care. Within each alignment group, participants are randomized to receive one of two implant insert types (medial stabilised or cruciate retaining) using a REDCap-based allocation process.
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| Cruciate Retaining Insert | Device | A cruciate retaining polyethylene insert used in robotic-assisted total knee arthroplasty that preserves the posterior cruciate ligament. |
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| ID | Term |
|---|---|
| D020370 | Osteoarthritis, Knee |
| ID | Term |
|---|---|
| D010003 | Osteoarthritis |
| D001168 | Arthritis |
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
| D012216 | Rheumatic Diseases |
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