Outcomes of Rotating Platform Versus Mobile Bearing Total Knee Arthroplasty

William Hopkinson

Status: Unknown

Conditions: Total Knee Arthroplasty

Treatments: Device: Rotating platform total knee arthroplasty; Device: Fixed bearing total knee arthroplasty

Study type: Interventional

Funder types: Other

Identifiers

NCT03731676

11119 (Registry Identifier)

Details and patient eligibility

About

Patients were randomly assigned to a fixed bearing or rotating platform of two prostheses. A subsequent study (the one retrospectively registering the original study) asked these patients a series of questions from published questionnaires to assess long term outcomes.

Enrollment: 250 patients

Sex: All

Volunteers: No Healthy Volunteers

Inclusion criteria

1. Osteoarthritis
2. Rheumatoid or other inflammatory arthritis
3. Post-traumatic arthritis
4. Juvenile rheumatoid arthritis
5. Avascular necrosis

Exclusion criteria

1. History of recent/active joint sepsis
2. Charcot neuropathy
3. Psycho-social disorders that would limit rehabilitation
4. Metabolic disorders of calcified tissues, such as Paget's disease
5. Joint replacement due to autoimmune disorders
6. Skeletal immaturity
7. Ligamentous laxity requiring a constrained prosthesis

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Quadruple Blind

---

250 participants in 2 patient groups

Rotating platform total knee arthroplasty

Active Comparator group

Description:

These patients were randomly assigned to receive a rotating platform total knee arthroplasty.

Treatment:

Device: Rotating platform total knee arthroplasty

Fixed bearing total knee arthroplasty

Active Comparator group

Description:

These patients were randomly assigned to receive a fixed bearing total knee arthroplasty.

Treatment:

Device: Fixed bearing total knee arthroplasty