Observation of the Clinical Efficacy of Two Surgical Procedures for Varus Knee Osteoarthritis

NCT ID: NCT05382429

Last Updated: 2022-05-19

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

Clinical Phase

NA

Total Enrollment

160 participants

Study Classification

INTERVENTIONAL

Study Start Date

2019-09-01

Study Completion Date

2021-12-20

Brief Summary

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The purpose of this study is to conduct a prospective randomized controlled trial to compare the effects between two surgical procedures in the treatment of varus knee osteoarthritis.The hypothesis was that there would be no difference in mechanical axis correction between two surgical procedures.

Detailed Description

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This was a single-center, prospective, double-blinded, randomized controlled trial, comparing two surgical procedures in the treatment of varus knee osteoarthritis. Participants were recruited from September 2019 to September 2021. Before initiating the trial, an investigator who was not involved in the study generated a computer-generated randomization list (block length 10, ratio 1:1). Allocation concealment was achieved by using opaque, sealed, sequentially numbered envelopes containing details of group assignment. Assignment occurred after baseline information was recorded. Whereas participants and surgeons were aware of the group assignments, the outcome assessors and data analysts were remained blinded during the study period. Operations were performed by the same team of sports medicine surgeons under general anesthesia.For the open wedge high tibial osteotomy group, Those who were randomly assigned to the OWHTO group, OWHTO Surgical procedure will be performed. For the closing wedge high tibial osteotomy group, hose who were randomly assigned to the CWHTO group, CWHTO Surgical procedure will be performed. The sample size calculation was based on data from previous studies. Accepting an α risk of 0.05 and a β risk of 0.2 in a bilateral contrast, the minimum sample size required for each group was 35. To compensate for an estimated 15% loss to follow up, at least 82 patients would be included.

Conditions

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Knee Osteoarthritis

Study Design

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Allocation Method

RANDOMIZED

Intervention Model

PARALLEL

Before initiating the trial, an investigator who was not involved in the study generated a computer-generated randomization list (block length 10, ratio 1:1). Allocation concealment was achieved by using opaque, sealed, sequentially numbered envelopes containing details of group assignment. Assignment occurred after baseline information was recorded. According to preoperative allocation, the patients were given open wedge high tibial osteotomy or closingwedge high tibial osteotomy.For the open wedge high tibial osteotomy group, Those who were randomly assigned to the OWHTO group, OWHTO Surgical procedure will be performed.For the closing wedge high tibial osteotomy group, hose who were randomly assigned to the CWHTO group, CWHTO Surgical procedure will be performed.
Primary Study Purpose

TREATMENT

Blinding Strategy

SINGLE

Outcome Assessors
Whereas patients and surgeons were aware of the group assignments, the outcome assessors and data analysts were remained blinded during the study period.

Study Groups

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OWHTO

open wedge high tibial osteotomy group For the open wedge high tibial osteotomy group, Those who were randomly assigned to the OWHTO group, OWHTO Surgical procedure will be performed.

Group Type EXPERIMENTAL

OWHTO

Intervention Type PROCEDURE

OWHTO Surgical procedure For the OWHTO Surgical procedure, only medial split biplanar osteotomy performed.

CWHTO

closing wedge high tibial osteotomy group For the closing wedge high tibial osteotomy group, hose who were randomly assigned to the CWHTO group, CWHTO Surgical procedure will be performed

Group Type EXPERIMENTAL

CWHTO

Intervention Type PROCEDURE

CWHTO Surgical procedure For the OWHTO Surgical procedure, only lateral closure osteotomy was performed.

Interventions

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OWHTO

OWHTO Surgical procedure For the OWHTO Surgical procedure, only medial split biplanar osteotomy performed.

Intervention Type PROCEDURE

CWHTO

CWHTO Surgical procedure For the OWHTO Surgical procedure, only lateral closure osteotomy was performed.

Intervention Type PROCEDURE

Eligibility Criteria

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Inclusion Criteria

The eligibility criteria for HTO were spontaneous osteonecrosis of the knee of the medial femoral condyle, medial compartment OA, Ahlbäck grades 1 or 2, femorotibial angle (FTA) of ≤185, flexion contracture of ≤15° , lack of damage to the anterior cruciate ligament (ACL) and posterior cruciate ligament, and no age restrictions .

Exclusion Criteria

Congenital deformity of knee joint, severe rheumatoid arthritis, Charkoff's joint, injury of knee joint (injury of medial and lateral collateral ligament, patella fracture, etc.) or surgical history (meniscectomy, femoral or tibial fracture after surgery), large number of free bodies or soft tissue flexion contracture in the joint \>10º, and range of motion of knee joint \<100º.
Minimum Eligible Age

40 Years

Maximum Eligible Age

70 Years

Eligible Sex

ALL

Accepts Healthy Volunteers

No

Sponsors

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The Affiliated Hospital of Qingdao University

OTHER

Sponsor Role lead

Responsible Party

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Responsibility Role SPONSOR

Locations

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Jinli Chen

Qingdao, Shandong, China

Site Status

Countries

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China

Other Identifiers

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chenjinli

Identifier Type: -

Identifier Source: org_study_id

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