The Effect of Combined Surgery in Management of Congenital Pseudarthrosis of Tibia

Sponsor
Hunan Children's Hospital (Other)
Overall Status
Recruiting
CT.gov ID
NCT02640040
Collaborator
Guangzhou Women and Children's Medical Center (Other), Shenzhen Children's Hospital (Other), Tongji Hospital (Other), Wuhan Union Hospital, China (Other), Wuhan Women and Children's Medical Center (Other), Foshan Hospital of Traditional Chinese Medicine (Other), Beijing Children's Hospital (Other), Dalian Children's Hospital (Other), Children's Hospital of Chongqing Medical University (Other), Kunming Children's Hospital (Other)
100
1
1
124
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Study Details

Study Description

Brief Summary

The study aims to evaluate the clinical result of Combined Surgery in Management of Congenital Pseudarthrosis.

Condition or Disease Intervention/Treatment Phase
  • Device: llizarov external fixation device
  • Device: intramedullary rod fixation
  • Procedure: surgery
N/A

Detailed Description

The study aims to evaluate the clinical result of Combined Surgery in Management of Congenital Pseudarthrosis. The combined surgery includes sleeve resection of the pathological soft tissues, retrograde intramedullary rodding, packaged lilac bone autograft,and appliance of llizarov external fixation device. Bone uion rate,average time of healing, Healing index, ankle valgus, limb length discrepancy, tibia axis alignment are recorded and evaluated.

Study Design

Study Type:
Interventional
Anticipated Enrollment :
100 participants
Allocation:
N/A
Intervention Model:
Single Group Assignment
Masking:
None (Open Label)
Primary Purpose:
Treatment
Official Title:
The Effect of Combined Surgery in Management of Congenital Pseudarthrosis of Tibia
Study Start Date :
Aug 1, 2015
Anticipated Primary Completion Date :
Dec 1, 2025
Anticipated Study Completion Date :
Dec 1, 2025

Arms and Interventions

Arm Intervention/Treatment
Experimental: combined surgery

combined surgery for enrolled patients with CPT(Congenital Pseudarthrosis of Tibia): sleeve resection of the pathological soft tissues, intramedullary rod fixation, packaged lilac bone autograft,and llizarov external fixation device installation.

Device: llizarov external fixation device
llizarov external fixation device was applied to fix the tibia.
Other Names:
  • llizarov fixator
  • Device: intramedullary rod fixation
    retrograde intramedullary rod was applied to stabilize the tibia.
    Other Names:
  • intramedullary rodding
  • Procedure: surgery
    combined surgery for enrolled patients with CPT: sleeve resection of the pathological soft tissues, retrograde intramedullary rodding, packaged lilac bone autograft,and llizarov external fixation device installation.
    Other Names:
  • combined surgery
  • Outcome Measures

    Primary Outcome Measures

    1. whether the tibial has obtained union. [6 months post-operation]

      Ohnishi criterion: Degree of union was evaluated by the findings on radiographs and classified into three grades( Ohnishi criterion): union, delayed union, and nonunion. Radiographic union was defined as possessing continuity of bone density between the fragments without obvious radiolucent zone between them and possessing cortex-bridging fragments with sufficient thickness and radiodensity on both anteroposterior and lateral radiographs. Delayed union was defined as a process of healing that was slow but was progressing. Nonunion was defined by the healing process that had completely ceased.

    Secondary Outcome Measures

    1. clinical outcome measurement(Johnston clinical evaluation criterion) [3,6,9,12,18,24 months post-operation]

      Johnston clinical evaluation criterion of Congenital Pseudarthrosis of Tibia (CPT): The outcome was classified as grade 1 when there was unequivocal union with full weight-bearing function and maintenance of alignment requiring no additional surgical treatment; grade 2 when there was equivocal union with useful function, with the limb protected by a brace, and/or valgus or sagittal bowing for which additional surgery was required or anticipated; and grade 3 when there was persistent nonunion or refracture, requiring full-time external support for pain and/or instability.

    2. Refracture of tibia [0.5 , 1,2,3,4,5,6,7,8,9,10 years post-operation]

      The continuity of tibia cortex was disappeared in X ray.

    Other Outcome Measures

    1. Residual Deformity-proximal tibia angulation(range,0°-90°) [pre-operation and 0.5 , 1,2,3,4,5,6,7,8,9,10 years post-operation]

      measurement of the angulation of proximal tibia in anterior and posterior (AP )and lateral X ray

    2. Residual Deformity-Limb length discrepancy [pre-operation and 0.5 , 1,2,3,4,5,6,7,8,9,10 years post-operation]

      measurement of the length difference of both tibia in AP and lateral X ray

    3. Residual Deformity-ankle valgus angulation(range,0°-90°) [pre-operation and 0.5 , 1,2,3,4,5,6,7,8,9,10 years post-operation]

      measurement of the angulation between the distal tibia and ankle joint.

    Eligibility Criteria

    Criteria

    Ages Eligible for Study:
    2 Years to 18 Years
    Sexes Eligible for Study:
    All
    Accepts Healthy Volunteers:
    No
    Inclusion Criteria:
    • The inclusion criteria consists of patients with congenital pseudarthrosis of Tibia
    Exclusion Criteria:
    • Patients are complicated with mental, neurological disorders (such as hypoxic-ischemic encephalopathy, epilepsy and dementia) or significant barriers to growth.

    • Patients with pseudarthrosis of tibia caused by trauma, tumor,infection, etc

    • Children are complicated with dysfunction of liver and kidney , blood disorders, immune deficiency disease and ECG abnormalities.

    • Parents refused further treatment.

    Contacts and Locations

    Locations

    Site City State Country Postal Code
    1 Hunan Children's Hospital Changsha Hunan China 410007

    Sponsors and Collaborators

    • Hunan Children's Hospital
    • Guangzhou Women and Children's Medical Center
    • Shenzhen Children's Hospital
    • Tongji Hospital
    • Wuhan Union Hospital, China
    • Wuhan Women and Children's Medical Center
    • Foshan Hospital of Traditional Chinese Medicine
    • Beijing Children's Hospital
    • Dalian Children's Hospital
    • Children's Hospital of Chongqing Medical University
    • Kunming Children's Hospital

    Investigators

    • Principal Investigator: Xu Yao, Hunan Children's Hospital

    Study Documents (Full-Text)

    None provided.

    More Information

    Publications

    Responsible Party:
    Hunan Children's Hospital
    ClinicalTrials.gov Identifier:
    NCT02640040
    Other Study ID Numbers:
    • HN02
    First Posted:
    Dec 28, 2015
    Last Update Posted:
    Oct 22, 2020
    Last Verified:
    Oct 1, 2020
    Individual Participant Data (IPD) Sharing Statement:
    Undecided
    Plan to Share IPD:
    Undecided
    Additional relevant MeSH terms:

    Study Results

    No Results Posted as of Oct 22, 2020