Minimal Versus Conventional Exposure in Unicompartmental Knee Arthroplasty
Recruitment status was: Recruiting
|Knee Osteoarthritis||Procedure: Minimal Invasive Surgery Procedure: Conventional exposure|
|Study Design:||Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
|Official Title:||Minimal vs. Conventional Exposure in Unicompartmental Knee Arthroplasty|
- Time to fulfilling discharge criteria [ Time Frame: 0-2 weeks ]
- Pain intensity [ Time Frame: 0-3 months ]
- Hospital stay [ Time Frame: 0-2 weeks ]
- Morphine consumption [ Time Frame: 0-48 hours ]
- Knee function [ Time Frame: 0-3 months ]
- Patient satisfaction [ Time Frame: 0-3 months ]
|Study Start Date:||May 2009|
|Estimated Study Completion Date:||September 2011|
|Estimated Primary Completion Date:||May 2011 (Final data collection date for primary outcome measure)|
Active Comparator: Group MIS
Minimal Invasive Surgery
Procedure: Minimal Invasive Surgery
After a 8-10 cm skin incision, a medial parapatellar capsule incision is made. The vastus medialis muscle or the rectus tendon are not incised, nor is the patella everted. The patella is merely pushed slightly aside when the bone cuts are made and the prostheses are cemented in place. Local Infiltration Analgesia is used.
|Active Comparator: Conventional Exposure||
Procedure: Conventional exposure
After a 15-20 cm midline skin incision is made, a medial parapatellar capsule incision is made. The incision is carried up through the insertion of the vastus medialis and into the rectus tendon. The patella is everted. The bone cuts are made and the prostheses are cemented in place. Local Infiltration Analgesia is used.
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.
Please refer to this study by its ClinicalTrials.gov identifier: NCT00991445
|Dept. of Orthopedic Surgery||Recruiting|
|Orebro, Sweden, SE-70185|
|Contact: Per Essving, MD +46196021000 email@example.com|
|Contact: Kjell Axelsson, Professor +46196021000 firstname.lastname@example.org|
|Principal Investigator: Kjell Axelsson, Professor|
|Principal Investigator:||Kjell Axelsson, Professor||Region Örebro County|