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

Not Applicable

Completed

• Conditions: Genu Varum
• Interventions: Procedure: Retro-Tubercle Opening-Wedge High Tibial Osteotomy

• Registration Number: NCT01122017
• Lead Sponsor: Shahid Beheshti University of Medical Sciences

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 Description

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.

Study Timeline

• Study Start: 2006-01
• Primary Completion: 2008-02
• Study Completion: 2008-11
• Study First Submitted: 2009-12-01
• Status Verified: 2010-04
• Study First Submitted QC: 2010-05-10
• Study First Posted: 2010-05-12
• Last Update Submitted: 2010-05-12
• Last Update Posted: 2010-05-13

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 72

Inclusion Criteria

• symptomatic varus deformity of the knee with 2 or more degrees of anatomical axis varus without ligament injury

Exclusion Criteria

• fractures through compartments of the knee or the patella
• osteoarthritis other than in the medial compartment
• 10 degrees or more extension lag
• tibial malrotation

Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
Medial Opening-Wedge Osteotomy	Retro-Tubercle Opening-Wedge High Tibial Osteotomy	Medial Opening-Wedge Osteotomy (MOWO) is an approach for the correction of malalignment of the knee

Primary Outcome Measures

Name	Time	Method
The proportion of patellar length (in mm)to the patellar tendon length (in mm)	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)	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.

Secondary Outcome Measures

Name	Time	Method
Quadriceps angle in degree	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	up to 13 months	The angle between articular surface and lateral longitudinal axis of tibia.

Trial Locations

Locations (1)

Shahid Beheshti University of Medical Sciences; 🇮🇷 Tehran, Iran, Islamic Republic of