Total Fat Pad Excision Leads to Worse Isokinetic Performance in Total Knee Arthroplasty

Aksaray University Training and Research Hospital

Status: Completed

Conditions: Knee Arthritis; Osteoarthritis, Knee

Treatments: Procedure: Partial infrapatellar fat pad excision; Procedure: Total infrapatellar fat pad excision

Study type: Interventional

Funder types: Other

Identifiers

NCT04419142

1464/2017

Details and patient eligibility

About

There are concerns that total infrapatellar fat pad (IPFP) excision in total knee arthroplasty (TKA) results in patellar tendon shortening due to ischemic contracture. But, individual preference of the surgeon is still the main determinant between total or partial excision. The aim of this randomized controlled trial is to compare knee society score (KSS), knee extension and flexion peak torque in patients undergoing TKA with total IPFP excision or partial IPFP excision. The hypothesis of the study is that during TKA, total IPFP excision would lead to worse isokinetic performance and clinical outcome.

A total of 72 patients scheduled to undergo TKA for primary osteoarthritis of the knee by a single surgeon were randomly assigned to either the total or partial excision group. Patients were evaluated preoperatively and at postoperative 1 year, with Knee Society Score (KSS) and isokinetic measurements. Physiatrist doing isokinetic tests and patients were blinded to the study.

Enrollment: 72 patients

Sex: All

Ages: 55 to 80 years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• Age between 55 and 80 years
• Scheduled to undergo unilateral TKA on for primary knee osteoarthritis

Exclusion criteria

• Inflammatory arthritis
• Post-traumatic osteoarthritis
• Previous knee surgery
• Neuromuscular diseases
• Bilateral TKA
• Insufficiency of collateral ligaments

Trial design

Primary purpose: Treatment

Allocation: Randomized

Interventional model: Parallel Assignment

Masking: Double Blind

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72 participants in 2 patient groups

Total infrapatellar fat pad excision group

Experimental group

Description:

Infrapatellar fat pad was totally excised during total knee arthroplasty in patients randomized to this group.

Treatment:

Procedure: Total infrapatellar fat pad excision

Partial infrapatellar fat pad excision group

Experimental group

Description:

Infrapatellar fat pad was partially excised during total knee arthroplasty in patients randomized to this group.

Treatment:

Procedure: Partial infrapatellar fat pad excision