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Study of the Effect of Weight Bearing Status on Patient Outcomes After Surgery for Osteochondral Defects of the Ankle

The recruitment status of this study is unknown. The completion date has passed and the status has not been verified in more than two years.
Verified July 2011 by Nova Scotia Health Authority.
Recruitment status was:  Not yet recruiting
Information provided by:
Nova Scotia Health Authority Identifier:
First received: July 27, 2011
Last updated: August 11, 2011
Last verified: July 2011

The rationale for this research study is to evaluate the effect on clinical outcomes of weight bearing as tolerated after forage surgery for the treatment of osteochondral defects of the ankle, thus potentially eliminating the need for a period of immobilisation or non-weight bearing after surgery.

The investigators hypothesize that their will be no difference in functional outcomes between weight bearing as tolerated as compared to non-weight bearing for six weeks after forage surgery for OCD of the ankle.

Condition Intervention
Osteochondritis Dissecans of Ankle and Joints of Foot
Other: Weight-Bearing as Tolerated

Study Type: Interventional
Study Design: Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Single Blind (Outcomes Assessor)
Primary Purpose: Treatment
Official Title: A Randomized, Controlled Clinical Trial to Evaluate the Effect on Patient Outcomes of Weight Bearing Status After Forage of Osteochondral Defects of the Ankle

Resource links provided by NLM:

Further study details as provided by Nova Scotia Health Authority:

Primary Outcome Measures:
  • Pain [ Time Frame: 12mo ]
    Pain and function as assessed by SF-36 and Ankle Osteoarthritis Scale patient questionnaires

Secondary Outcome Measures:
  • CT Scan [ Time Frame: 12mo ]
    For assessment of cartilage healing

Estimated Enrollment: 68
Study Start Date: September 2011
Estimated Study Completion Date: September 2013
Estimated Primary Completion Date: September 2013 (Final data collection date for primary outcome measure)
Arms Assigned Interventions
No Intervention: Non-Weight Bearing x 6 weeks
Experimental: Immediate Weight-Bearing as Tolerated Other: Weight-Bearing as Tolerated
WBAT immediately after surgery
Other Name: Weight-bearing status

Detailed Description:

The hypothesis for advantage of the investigational post-operative therapy is based on:

Equivalent clinical outcomes to non-weight bearing; Similar radiographic findings on CT at follow-up visit between the two groups; reduced morbidity and disability to subjects through elimination of a period of non-weight bearing; reduction of cost to patients by eliminating need for adjuvant walking and mobility aids (crutches, taxis) and time off work.


Ages Eligible for Study:   16 Years to 65 Years   (Child, Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

Inclusion Criteria:

  • Patients aged 16-60 years
  • No prior ankle surgery
  • Able and willing to comply with follow-up
  • Capable of provide informed consent
  • Medically fit for surgery
  • Lesions on preoperative CT Scan < 1.5cm
  • Symptomatic (ie:pain, restricted activities, inability to WB, decreased ROM)
  • Single Isolated lesion
  • Failure of conservative treatment (3 months of limited activities and/or weight bearing and/or immobilization)

Exclusion Criteria:

Age less than 16 years or greater than 60 years

  • Inflammatory arthritis
  • Diffuse OA of affected joint
  • Associated fracture
  • Prior ankle surgery for current injury (including arthroscopy)
  • Unable to comply with follow-up
  • Unable to provide informed consent
  • Bernt & Hardy class IV (amenable to ORIF)
  • Multiple OCDs in one ankle or Touching osteochondral lesions of tibia and talus
  • Prior OCD of the affected ankle
  Contacts and Locations
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Please refer to this study by its identifier: NCT01405664

Contact: Trish Francis 902-473-5993
Contact: Mark Glazebrook, MD, FRCSC 902-473-7137

Canada, Nova Scotia
Queen Elizabeth II Health Sciences Centre, Halifax Infirmary Not yet recruiting
Halifax, Nova Scotia, Canada, B3H3A7
Contact: Trish Francis    902-473-5993   
Principal Investigator: Mark Glazebrook, MD, FRCSC         
Sub-Investigator: Caroline A Tougas, MD         
Sponsors and Collaborators
Nova Scotia Health Authority
Principal Investigator: Mark Glazebrook, MD,FRCSC Nova Scotia Health Authority
  More Information

Responsible Party: Dr. Mark Glazebrook, CDHA Identifier: NCT01405664     History of Changes
Other Study ID Numbers: WBOCD
Study First Received: July 27, 2011
Last Updated: August 11, 2011

Additional relevant MeSH terms:
Osteochondritis Dissecans
Bone Diseases
Musculoskeletal Diseases
Cartilage Diseases
Connective Tissue Diseases processed this record on April 26, 2017