Clinical Study of Patellar Resurfacing and Non-resurfacing in Total Knee Arthroplasty

Liaocheng People's Hospital

Status: Completed

Conditions: Total Knee Arthroplasty

Treatments: Procedure: the patella was resurfaced.

Study type: Interventional

Funder types: Other

Identifiers

NCT03600922

LCHOSPITAL-123456

Details and patient eligibility

About

The literature regarding resurfacing of the patella in total knee arthroplasty has conflicting conclusions. This study assesses medium-term clinical results of total knee arthroplasties performed with and without the patellar resurfacing in patients undergoing single-staged bilateral total knee arthroplasty in a randomized controlled, clinical study at a minimum of 5 years follow-up.

Full description

Sixty-six patients (132 knees) underwent primary single-staged bilateral total knee arthroplasty for osteoarthritis. Patients were randomized to receive resurfacing or retention of the patella. All patients received the Scorpio NRG knee prosthesis. Evaluations were done preoperatively and yearly, up to a minimum of 5 years postoperatively. Knee Society Score and Feller Score outcomes were measured. Anterior knee pain, the clunk of patella, and patient satisfaction questionnaires were completed.

Enrollment: 66 patients

Sex: All

Ages: 50 to 75 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• degenerative OA
• 50-75 years
• All patients with OA were bilateral knee OA

Exclusion criteria

• previous patellectomy
• inflammatory arthritis
• patellar fracture
• patellar instability
• previous extensor mechanism procedures
• high tibial osteotomy,
• severe valgus or varus deformity (> 20°), severe flexion contracture (> 30°)
• previous unicondylar knee replacement
• a history of septic arthritis or osteomyelitis.

Trial design

Primary purpose: Treatment

Allocation: N/A

Interventional model: Single Group Assignment

Masking: None (Open label)

---

66 participants in 1 patient group

Intervention group

Experimental group

Treatment:

Procedure: the patella was resurfaced.