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Prediction of Leg Length Discrepancy After Unilateral Total Knee Replacement in Varus Deformity

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ClinicalTrials.gov Identifier: NCT03502382
Recruitment Status : Unknown
Verified April 2018 by Abanoub Nagaty Wahba, Assiut University.
Recruitment status was:  Active, not recruiting
First Posted : April 18, 2018
Last Update Posted : April 19, 2018
Sponsor:
Information provided by (Responsible Party):
Abanoub Nagaty Wahba, Assiut University

Study Description
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Brief Summary:
To What degree total knee replacement (TKA) affects leg length discrepancy in patients with varus deformity? Varus deformity, the most commonly encountered deformity in patients undergoing TKA is associated with limb alignment and varying degrees of contractures of medial soft tissue structures, laxity of the lateral soft tissue structures, flexion deformity and medial bone erosion at the knee joint .The challenges in performing TKA in a varus arthritic knee include restoration of limb alignment, balancing the medial and lateral soft tissue tension, equalizing flexion and extension gaps and restoring medial bone loss

Condition or disease Intervention/treatment Phase
Total Knee Replacement Diagnostic Test: x-ray Not Applicable

Detailed Description:

Limb length discrepancy (LLD)less than 2cm is usually not noticeable and does not require treatment. LLD over 2cm is usually noticed by the individual affected leading to self compensation by walking on the ball of the foot (toe down) or by tilting the pelvis and curving the spine.Untreated LLD can lead to lower back pain and long leg arthritis of the hip LLD and its effects on patient function have been discussed in depth in the literature with respect to hip arthroplasty but there are few studies that have examined the effect on function of limb length discrepancy following TKA.

Improved surgical techniques and rehabilitation protocols have resulted in excellent knee function and range of motion following TKA.

The investigators are aiming from the study to improve functional outcome in patients with knee osteoarthritis undergoing TKA.

Study Design
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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 50 participants
Allocation: N/A
Intervention Model: Single Group Assignment
Intervention Model Description: Cases of osteoarthritis of the knee with varus deformity undergoing unilateral TKA.
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Prediction of Leg Length Discrepancy After Unilateral Total Knee Replacement in Varus Deformity
Actual Study Start Date : April 1, 2018
Estimated Primary Completion Date : April 30, 2019
Estimated Study Completion Date : April 30, 2019

Resource links provided by the National Library of Medicine

Drug Information available for: X-Rays

Arms and Interventions
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Arm Intervention/treatment
radilogical
Radiological: standing antero-posterior full-length digital images of the lower extremities
 Diagnostic Test: x-ray
Radiological: standing antero-posterior full-length digital images of the lower extremities


Outcome Measures
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Primary Outcome Measures :
  1. Measuring ofleg length discrepancy before and after unilateral totalknee replacement. [ Time Frame: 1 day ]
    Measuring ofleg length discrepancy before and after unilateral totalknee replacement.


Eligibility Criteria
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Information from the National Library of Medicine

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Ages Eligible for Study:   Child, Adult, Older Adult
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes
Criteria

Inclusion Criteria:

- 1-Cases of osteoarthritis of the knee with varus deformity undergoing unilateral TKA.

2-Cases with previous unilateral TKA undergoing TKA of the other side.

Exclusion Criteria:

  • 1-Cases of osteoarthritis of the knee with valgus deformity. 2-Revision total knee replacement cases. 3-Patients with total hip replacement. 4-Extra-articular lower limb deformities. 5-Cases of bilateral TKA done at same setting. 6-Patients with previous knee surgery. 7-Patients with complicated inrta-operative TKA .
Contacts and Locations
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Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its ClinicalTrials.gov identifier (NCT number): NCT03502382


Locations
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Egypt
Assiut University
Assiut, Egypt, 088
Sponsors and Collaborators
Assiut University
Investigators
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Study Chair: Ahmed Abdel-Aal, prof. prof. of orthopaedics
More Information
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Additional Information:

Publications automatically indexed to this study by ClinicalTrials.gov Identifier (NCT Number):

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Responsible Party: Abanoub Nagaty Wahba, dr., Assiut University
ClinicalTrials.gov Identifier: NCT03502382    
Other Study ID Numbers: assiut university medical
First Posted: April 18, 2018    Key Record Dates
Last Update Posted: April 19, 2018
Last Verified: April 2018
Individual Participant Data (IPD) Sharing Statement:
Plan to Share IPD: Undecided
Plan Description: the results

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Studies a U.S. FDA-regulated Drug Product: No
Studies a U.S. FDA-regulated Device Product: No
Additional relevant MeSH terms:
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Leg Length Inequality
Bone Diseases, Developmental
Bone Diseases
Musculoskeletal Diseases
Pathological Conditions, Anatomical