The Effect of Open Wedge High Tibial Osteotomy on the Posterior Tibial Slope In Skeletally Mature Patient

Study Results

Results pending

The study team has not published outcome measurements, participant flow, or safety data for this trial yet. Check back later for updates.

Basic Information

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Recruitment Status

COMPLETED

Total Enrollment

40 participants

Study Classification

OBSERVATIONAL

Study Start Date

2023-01-01

Study Completion Date

2024-01-01

Brief Summary

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High tibial osteotomy has been established as an efficient surgical intervention for young patients with uni-compartmental osteoarthritis of the knee. The principle of this surgery involves the realignment of the lower extremity to shift the load distribution from the medial compartment into the lateral compartment, thus leading to a decrease in symptoms related to medial compartment knee Osteoarthritis However, medial opening wedge high tibial osteotomy is also known to affect the posterior tibial slope angle , and it is reported that posterior tibial slope angle increases after medial opening wedge high tibial osteotomy .

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Detailed Description

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High tibial osteotomy has been established as an efficient surgical intervention for young patients with uni-compartmental osteoarthritis of the knee. Medial opening wedge high tibial osteotomy is a well established surgery for patients with medial compartment knee osteoarthritis its most notable advantages include the precision of intraoperative angular correction, absence of the risk of peroneal nerve palsy in fibular osteotomy, absence of leg shortening, and preservation of bone stock.

The principle of this surgery involves the realignment of the lower extremity to shift the load distribution from the medial compartment into the lateral compartment, thus leading to a decrease in symptoms related to medial compartment knee Osteoarthritis However, medial opening wedge high tibial osteotomy is also known to affect the posterior tibial slope angle , and it is reported that posterior tibial slope angle increases after medial opening wedge high tibial osteotomy .

Satisfactory outcomes after surgery require optimal realignment both in the sagittal and coronal planes; in fact, poor realignment could lead to unsatisfactory clinical outcomes. An unintentional increase in posterior tibial slope angle after medial opening wedge high tibial osteotomy may influence knee kinematics and stability in the sagittal plane, which could lead to anterior translation of the tibial plateau, anterior shift of the tibiofemoral contact area, and subsequent redistribution of pressure into the posterior tibial plateau (particularly in knees with injured anterior cruciate ligaments). These conditions could result in articular cartilage degradation and further knee disability

Conditions

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Genu Varum

Study Design

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Observational Model Type

COHORT

Study Time Perspective

RETROSPECTIVE

Study Groups

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Observations

number of patients, sex, age, Bodi Mass Index , Range of Motion ,type of plate \& Screws used , Degree of deformity .

Digital radiography (General Electric Healthcare ) functional scores software T-tests, One-way analysis of variance.

Observation

Intervention Type OTHER

1. Measure changes in tibial slope after medial opening wedge High tibial osteotomy in Skeletally mature patient with unicompartmental osteoarthitis and genuvarus knee
2. Evaluate the effect of tibial slope angle change on the clinical outcome at 1 year .

Interventions

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Observation

1. Measure changes in tibial slope after medial opening wedge High tibial osteotomy in Skeletally mature patient with unicompartmental osteoarthitis and genuvarus knee
2. Evaluate the effect of tibial slope angle change on the clinical outcome at 1 year .

Intervention Type OTHER