Minimal Versus Conventional Exposure in Unicompartmental Knee Arthroplasty

Region Örebro County

Status

Unknown

Conditions

Knee Osteoarthritis

Treatments

Procedure: Conventional exposure

Procedure: Minimal Invasive Surgery

Study type

Interventional

Funder types

Other

Identifiers

NCT00991445

RAK-Incision

Details and patient eligibility

About

The purpose of this study is to determine whether Minimal Invasive Surgery results in less postoperative pain and better mobilization than conventional technique in Unicompartmental Knee Arthroplasty, provided that both groups receive Local Infiltration Analgesia.

Full description

Postoperative pain is often moderate to severe following unicompartmental knee arthroplasty. In order to reduce postoperative pain and improve mobilization the minimal invasive technique was developed. After a 8-10 cm skin incision, a medial parapatellar capsule incision in made. The rectus tendon or the vastus medialis are not incised and the patella is not everted.

In recent years The Local Infiltration Analgesia (LIA) technique has been developed to reduce postoperative pain. With this LIA-technique, a long-acting local anesthetic (ropivacaine), a nonsteroidal anti-inflammatory drug (ketorolac), and epinephrine are infiltrated intraoperatively and via an intraarticular catheter postoperatively.

The aim of this study is to investigate if Minimal Invasive Surgery results in less postoperative pain and better mobilization than conventional technique in Unicompartmental Knee Arthroplasty, provided that both groups receive Local Infiltration Analgesia.

Enrollment

40 estimated patients

Sex

All

Ages

20 to 80 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

Patients scheduled for unicompartmental knee arthroplasty
Aged 20-80 yrs
ASA physical status I-III and mobility indicating normal postoperative mobilization

Exclusion criteria