Osteoarthritis, Knee Clinical Trial
Official title:
Outcome Comparison of Allogenic Cancellous Bone and a New Synthetic Bone Substitute (geneX®) in Filling the Bone Defect Created With Medial Open Wedge High Tibial Osteotomy
This study is conducted to determine whether a new synthetic bone substitute is better than allogenic bone graft for addressing bone defect in medial open wedge high tibial osteotomy in terms of postoperative pain, postoperative bleeding, operation time and bone healing. The investigators hypothesized the new synthetic bone substitute would bring better outcomes in the outcome variables mentioned above.
Status | Recruiting |
Enrollment | 60 |
Est. completion date | January 2016 |
Est. primary completion date | November 2015 |
Accepts healthy volunteers | No |
Gender | Both |
Age group | N/A and older |
Eligibility |
Inclusion Criteria: - Diagnosis of primary osteoarthritis of the knee which is confined to medial compartment - Scheduled for high tibial osteotomy - Written signed consent available Exclusion Criteria: - Patients who refuse to participate in the study - Previous history of major orthopedic surgery around the operating knee - Congenital anomaly involving proximal tibia - Revision high tibial osteotomy - Patients who is receiving another major knee surgery simultaneously with high tibial osteotomy at the same knee |
Allocation: Randomized, Endpoint Classification: Safety/Efficacy Study, Intervention Model: Parallel Assignment, Masking: Single Blind (Subject), Primary Purpose: Treatment
Country | Name | City | State |
---|---|---|---|
Korea, Republic of | Joint Reconstruction Center, Seoul National University Bundang Hospital | Seongnam-Si | Gyeonggi-do |
Lead Sponsor | Collaborator |
---|---|
Seoul National University Hospital |
Korea, Republic of,
Type | Measure | Description | Time frame | Safety issue |
---|---|---|---|---|
Other | Amount of transfusion | Amount of transfusion during patient's hospital stay, if any, is measured in packs. | from the start of operation until discharge of the patient from hospital (which is anticipated on postoperative day 2 on average) | Yes |
Other | Postoperative complications | When an event of postoperative complication occurs, it is recorded with postoperative date. | from the date of operation to the date of occurence of any complications, assessed up to 12 months after surgery | Yes |
Primary | Temporal change of postoperative pain | Pain on operation site is measured on a 0-to-10 visual analogue scale(VAS) and 5-point Likert scale (0.no pain, 1.slight pain, 2.moderate pain, 3.severe pain, 4.extreme pain). Initial postoperative pain will be recorded on postoperative day 2. After discharge from hospital (on postoperative day 2, on average), patients will visit outpatient department on 2weeks, 6weeks, 3months, 6months, 12months after surgery and pain measurements on each visit will be recorded. |
from 2 days after surgery to 12 months after surgery | No |
Secondary | Pre&postoperative Hemoglobin level | Preoperative hemoglobin level is measured when the patient is admitted to the hospital for surgery and postoperative level is measured on postoperative day 2. The differences between values will be calculated. | on admission (preop.), postoperative day 2 (postop.) | Yes |
Secondary | Total operation time | Total operation time is defined as the time interval between skin incision and deflation of tourniquet (thigh tourniquet used in the operation to provide bloodless surgical field). Measured in minutes. | from skin incision to deflation of tourniquet | No |
Secondary | Temporal change of weight bearing status | As a proxy variable of bone healing status, whether the patient can bear weight on operated knee is measured on a 3 point scale (1.full weight bearing, 2.partial weight bearing, 3.no weight bearing) Patients will visit outpatient department on 2weeks, 6weeks, 3months, 6months, 12months after surgery and weight bearing status on each visit will be recorded. |
from 2 weeks after surgery to 12 months after surgery | No |
Secondary | Temporal change of pain with weight bearing | As a proxy variable of bone healing status, pain with weight bearing is measured on a 0-to-10 visual analogue scale(VAS) and 5-point Likert scale (0.no pain, 1.slight pain, 2.moderate pain, 3.severe pain, 4.extreme pain) Patients will visit outpatient department on 2weeks, 6weeks, 3months, 6months, 12months after surgery and pain with weight bearing on each visit will be recorded. |
from 2 weeks after surgery to 12 months after surgery | No |
Secondary | Amount of drainage | Total amount of drainage (in milliliters) from indwelling drain located in operative site, until its removal. | from the end of surgery until drain removal, which is anticipated on postoperative day 1 or 2 | Yes |
Secondary | Working time for bone defect filling | Time required to fill the bone defect (from the start of processing either allogenic bone graft or synthetic bone substitute to completely finish filling the defect. Measured in seconds. | from the start of processing allograft or synthetic bone substitute to finish filling bone defect | No |
Secondary | Temporal progression of bone healing on X-rays | Two independent investigators assess the progression of bone healing status on X-rays and the agreement between investigators will be measured. Bone healing status is assessed based on 3 point scale. (1. union not achieved yet, 2. partial union achieved, 3. complete union achieved) Patients will visit outpatient department on 2weeks, 6weeks, 3months, 6months, 12months after surgery and bone healing status on X-rays will be recorded on 3months, 6months and 12months after surgery. |
from 3 months after surgery to 12months after surgery | No |
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