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Early Weight Bearing After Open Wedge High Tibial Osteotomy (OWHTO), Is it Worth?

Early Weight Bearing After Open Wedge High Tibial Osteotomy (OWHTO), Is it Worth?

Status
Active, not recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07583264
Enrollment
72
Registered
2026-05-13
Start date
2024-03-08
Completion date
2026-06-08
Last updated
2026-05-13

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Knee Osteoarthritis

Keywords

deformity correction, High tibial Osteotomy, Knee Arthroscopy, Knee Synovitis

Brief summary

The aim of our study is to evaluate the effect of early weight bearing after OWHTO on pain, function and return to normal lifestyle activity.

Detailed description

The management of medial compartment osteoarthritis of the knee in middle-aged patients is challenging. High tibial osteotomy (HTO) is a joint-preserving procedure that can relieve symptoms and return patients back to an active lifestyle. However, both total and uni-compartmental knee arthroplasty can provide good pain relief, but there is concern about the durability of the components in this younger population. High tibial osteotomy (HTO) is a procedure with proven short-, medium- and long-term efficacy for treating isolated medial tibiofemoral knee osteoarthritis in young subjects with varus knee deformity. Several studies have shown that the HTO lasts on average 10 years. After this, 74% to 96% of patients require total knee arthroplasty (TKA). HTO can delay or sometime even avoid the need for arthroplasty. Better functional results have been seen in younger patients. HTO can also be performed to treat medial femoral condyle osteonecrosis or as part of the treatment of ligament injuries with varus malalignment. The goal of high tibial osteotomy in knees with medial compartment OA is to shift the weight bearing axis from the medial compartment into the lateral compartment. This unloads the damaged medial articular cartilage. To achieve this, two main surgical techniques have been utilized, the lateral closing wedge and the medial opening wedge high tibial osteotomy (MOHTO). The lateral closing wedge HTO has the advantage of early bony healing at the osteotomy site.

Interventions

OTHEREarly weight bearing post operative

this group underwent High tibial osteotomy and started early partial weight bearing post-operative at week 2 using crutches and restricted 20 kg of load for 4 weeks. Quadriceps strengthening exercises, continues flexion and extension of the knee were added also to this protocol of post-operative rehabilitation.

OTHERNon weight bearing Post-operative

the group underwent High tibial osteotomy and started weight bearing post-operative at week 6. Quadriceps strengthening exercises, continues flexion and extension of the knee were added also to this protocol of post-operative rehabilitation.

Sponsors

Assiut University
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
PARALLEL
Primary purpose
TREATMENT
Masking
NONE

Intervention model description

parallel-groups superiority randomized controlled blinded trial

Eligibility

Sex/Gender
ALL
Age
15 Years to 60 Years
Healthy volunteers
Yes

Inclusion criteria

* Age from 15 to 60 years old. * Medial compartmental knee OA. * With or without medial meniscal injury. * With or without Cartilage defect. * Genu varus from 5-15 degrees . * Flexion deformity \< 10 degree .

Exclusion criteria

* Older than 50 years old and younger than 15 years old. * Multiligament injury. * Lateral compartmental knee OA \> GII. * Genu varus \< 5 or \> 15 degree . * Flexion deformity \> 10 degree . * Associated ligamentous reconstruction. * Revision HTO. * Meniscal root repair. * Lateral meniscal injury. * Mal-united Fr. Tibial plateau.

Design outcomes

Primary

MeasureTime frameDescription
Clinical outcomeAll patients of both groups underwent a clinical evaluation at 6-weeks, 3-months and 6-months post-operatively to assess knee range of motion and return to daily activity life.We used The nternational Knee Documentation Committee (IKDC) score as a validated, patient-reported outcome measure designed to quantify functional limitations, symptoms, and sports activity levels across a broad range of knee pathologies. IKDC scores are utilized to objectively assess a patient's ability to perform activities of daily living and to establish data-driven benchmarks for Return-to-Sport (RTS). Furthermore, by providing a longitudinal perspective on recovery, the scale allows us to monitor the progression of clinical improvement and determine the overall efficacy of surgical and rehabilitative interventions. The IKDC utilizes a normalized scale ranging from 0 to 100. A score of 0 represents the lowest possible level of function, indicating severe physical limitations and significant symptomatic distress. Conversely, a score of 100 represents the highest possible outcome, a total absence of symptoms and no limitations in either strenuous sports activities or daily living.

Secondary

MeasureTime frameDescription
Radiological outcomeAssessment of both groups was performed using weight-bearing standing radiographs to evaluate the degree of varus correction and screen for potential complications at 2-weeks (group1), 6-weeks, 3-months and 6-months postoperative.Preoperative radiological evaluation of all patients included conventional radiography. Assessment of group 1 was performed using weight-bearing standing radiographs to evaluate the degree of varus correction and screen for potential complications at 2-weeks, 6-weeks, 3-months and 6-months postoperative. Assessment of group 2 was performed using weight-bearing standing radiographs and long film at 6-weeks, 3-months and 6-months postoperative.

Countries

Egypt

Contacts

STUDY_CHAIRHatem Galal Said, Professor

Professor of orthopaedic and trauma surgery, Assiut University

STUDY_DIRECTORMohamed Abdel Radi, Professor

Professor of orthopaedic and trauma surgery, Assiut University

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: May 14, 2026