the Effect of Weight Bearing Status on Healing and Pain Outcomes After Surgery for Osteochondral Defects of the Ankle

  • End date
    Sep 30, 2023
  • participants needed
  • sponsor
    Nova Scotia Health Authority
Updated on 25 January 2021


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.


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.

Condition Osteochondritis Dissecans of Ankle and Joints of Foot
Treatment Weight-Bearing as Tolerated
Clinical Study IdentifierNCT01405664
SponsorNova Scotia Health Authority
Last Modified on25 January 2021


Yes No Not Sure

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 osteoarthritis 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 osteochondral defects in one ankle or touching osteochondral lesions of tibia and talus
Prior osteochondral defects of the affected ankle
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