Patellar Resurfacing in Total Knee Arthroplasty

Sykehuset Innlandet HF

Status: Completed

Conditions: Osteoarthritis; Pain

Treatments: Procedure: No patellar component; Procedure: Patellar component

Study type: Interventional

Funder types: Other

Identifiers

NCT00553982

aue1

13-2007 SI (Personvernombudet)

40-07172b 1.2007.952 (REK)

Details and patient eligibility

About

Background:

The best treatment of the patella during total knee arthroplasty (TKA) is controversial. The implantation of a patellar component adds to the operation time and the costs of the operation.There is a huge variation as to whether the patella is resurfaced or not during TKA. Meta-analysis of prospective, randomised trials might indicate that patellar resurfacing reduces the risk of reoperation and anterior knee pain, but drawing firm conclusions is not possible and additional, high quality randomised trials are required.

Purpose:

The aim of this study is to determine whether ther is a difference between the two groups in knee pain, functions, patient satisfaction and quality of life after TKA.

Enrollment: 130 patients

Sex: All

Ages: Under 85 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Patients less than 85 years old with osteoarthritis scheduled for primary knee arthroplasty.

Exclusion criteria

• Patients who are not able to cooperate
• Serious deformity (not suitable for a standard CR prosthesis)
• Patellar thickness less than 18 mm
• Prior operation involving the extensor mechanism
• Rheumatoid arthritis
• Severe medical disability limiting the ability to walk
• Revision surgery
• Knees with predominantly patellofemoral arthrosis

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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130 participants in 2 patient groups

1

Experimental group

Description:

Patellar resurfacing

Treatment:

Procedure: Patellar component

2

Active Comparator group

Description:

Patellar retention

Treatment:

Procedure: No patellar component