Clinical Trial: A Modified (Retro-Tubercle) Opening Wedge High Tibial Osteotomy Versus the Conventional Technique

Study Status: Completed
Recruit Status: Completed
Study Type: Interventional

Official Title: A Modified (Retro-Tubercle) Opening Wedge High Tibial Osteotomy Versus the Conventional Technique

Brief Summary: The present study was conducted among a group of Iranian patients suffering from varus knee in order to compare advantages and disadvantages of ROWHTO (Retro-Tubercle Opening Wedge High Tibial Osteotomy) technique when compared with previously described approaches of opening-wedge osteotomy.

Detailed Summary: There are various methods for correcting varus deformity; therefore the best surgical method must be individualized. We concluded that in a varus knee where only correction in the coronal plane without patella infra, changes in Q- angle, tibial plateau inclination is all that is needed, a retro- tubercle medial opening- wedge osteotomy is the preferred approach.
Sponsor: Shahid Beheshti University of Medical Sciences

Current Primary Outcome:

• The proportion of patellar length (in mm)to the patellar tendon length (in mm) [ Time Frame: up to 13 months ]
  The length of the patella (in its longest diameter on a lateral x-ray) to the length of the patellar tendon is referred as Insall-Salvati index
• The proportion of patellar articular surface length (in mm)to the patella-tibial plateau distance (in mm) [ Time Frame: up to 13 months ]
  The length of the articular surface of the patella to the distance from the patella to the tibial plateau is referred as Blackburne-Peel index.

Original Primary Outcome:

• The proprotion of patellar length (in mm)to the patellar tendon length (in mm) [ Time Frame: up to 13 months ]
  The length of the patella (in its longest diameter on a lateral x-ray) to the length of the patellar tendon is referred as Insall-Salvati index
• The proportion of patellar articular surface length (in mm)to the patella-tibial plateau distance (in mm) [ Time Frame: up to 13 months ]
  The length of the articular surface of the patella to the distance from the patella to the tibial plateau is referred as Blackburne-Peel index.

Current Secondary Outcome:

• Quadriceps angle in degree [ Time Frame: up to 13 months ]
  The angle between the quadriceps vector and the line of pull of the patellar tendon from the centre of the patella to the tibial tubercle.
• Inclination of proximal tibial plateau in degree [ Time Frame: up to 13 months ]
  The angle between articular surface and lateral longitudinal axis of tibia.

Original Secondary Outcome: Same as current

Information By: Shahid Beheshti University of Medical Sciences

Dates:
Date Received: December 1, 2009
Date Started: January 2006
Date Completion:
Last Updated: May 12, 2010
Last Verified: April 2010