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Simple Bone Cysts in Kids

Phase 3
Recruiting
Conditions
Bone Cyst
Interventions
Procedure: Curettage with puncture (C & P)
Device: Curette
Device: Vitoss morsels
Registration Number
NCT02193841
Lead Sponsor
The Hospital for Sick Children
Brief Summary

Simple bone cysts (SBCs) are cysts filled with fluid that occur most frequently in the long bones (arms or legs) of children. There are many ways to treat SBCs but it is unclear if one is better than another. The purpose of this research trial is to compare the effectiveness of two common treatments that are used by surgeons today.

Detailed Description

In general, few randomized clinical trials have been undertaken in paediatric orthopaedics, and only one to date has addressed the problem of simple bone cysts (SBCs). Also known as unicameral bone cysts, they are the commonest bone lesion in children. Despite general opinion, these cysts do not resolve at skeletal maturity.

Many forms of treatment have been recommended but none, including the popular methods of corticosteroid or bone marrow injections, have reliably eradicated SBC. Although the lesions are considered benign (non-cancerous), they cause pain, frequently interfere with function, dramatically restrict play activity, may re-fracture leading to growth arrest and/or deformity, and cause enormous anxiety for children and their families.

With a well-developed network of surgeons and researchers, we will provide evidence comparing the effectiveness of two treatment interventions for SBC. More specifically, our goals for this study are:

1. to compare the rate of radiographic healing between two standard treatments including curettage with puncture alone, and curettage with puncture followed by injection with Vitoss morsels;

2. to identify prognostic radiographic factors associated with simple bone cyst healing and fracture;

3. to determine the impact of simple bone cyst on children/family functioning.

Recruitment & Eligibility

Status
RECRUITING
Sex
All
Target Recruitment
160
Inclusion Criteria
  • Patients with a confirmed simple bone cyst in a long bone (ie. arm or leg) within last 3 months
  • At least 3 weeks must have elapsed since last fracture
  • At least 3 months must have elapsed since last cyst treatment
  • Patients and/or their legal representatives willing to provide written informed consent (and assent, when appropriate)
  • Patients with stabilizing implants in the bone where the cyst is located
Exclusion Criteria
  • Patients with bone disease (ie. osteogenesis imperfecta, cancer, osteoporosis, Paget's disease)
  • Pregnant or breastfeeding female
  • Patients with cysts crossing the growth plate (area where bone grows)

Study & Design

Study Type
INTERVENTIONAL
Study Design
PARALLEL
Arm && Interventions
GroupInterventionDescription
C & P with VitossCuretteA predetermined amount of Vitoss morsels will be injected following the curettage and puncture (C \& P)
C & PCuretteCurettage with puncture (C \& P) will be performed alone
C & PCurettage with puncture (C & P)Curettage with puncture (C \& P) will be performed alone
C & P with VitossCurettage with puncture (C & P)A predetermined amount of Vitoss morsels will be injected following the curettage and puncture (C \& P)
C & P with VitossVitoss morselsA predetermined amount of Vitoss morsels will be injected following the curettage and puncture (C \& P)
Primary Outcome Measures
NameTimeMethod
Cyst healing2 years

Healing will be graded according to a 4-point modified Neer's classification by radiologists

Secondary Outcome Measures
NameTimeMethod
Functional measures (Questionnaire scores)1 and 2 years

Function in participants will be evaluated using self-reported questionnaires for activity level, perception of illness, and pain annually after treatment

Clinical measures (Cyst features)1 and 2 years

Cyst features (ie. appearance, size) will be described or measured from X-rays taken annually after treatment

Trial Locations

Locations (25)

The Hospital for Sick Children

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Toronto, Ontario, Canada

Children's Hospital of Alabama

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Birmingham, Alabama, United States

Loma Linda University

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Loma Linda, California, United States

Nemours/Alfred I. duPont Hospital for Children

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Wilmington, Delaware, United States

The John Hopkins Hospital

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Baltimore, Maryland, United States

The Children's Hospital at Montefiore

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Bronx, New York, United States

Hospital for Joint Diseases

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New York, New York, United States

Hospital for Special Surgery

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New York, New York, United States

University of North Carolina - Chapel Hill

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Chapel Hill, North Carolina, United States

Cincinnati Children's Hospital Medical Center

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Cincinnati, Ohio, United States

The Royal Children's Hospital

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Melbourne, Australia

Texas Children's Hospital

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Houston, Texas, United States

Alberta Children's Hospital

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Calgary, Alberta, Canada

Winnipeg Health Sciences Centre

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Winnipeg, Manitoba, Canada

Children's Hospital at London Health Sciences Centre

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London, Ontario, Canada

Children's Hospital of Eastern Ontario

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Ottawa, Ontario, Canada

Shriners Hospital for Children - Canadian Unit

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Montreal, Quebec, Canada

Alder Hey Children's Hospital

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Liverpool, United Kingdom

Royal Manchester Children's Hospital

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Manchester, United Kingdom

Nuffield Orthopaedic Centre

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Oxford, United Kingdom

Sheffield Children's Hospital

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Sheffield, United Kingdom

Great Ormond Street Hospital for Children

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London, United Kingdom

IWK Health Centre

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Halifax, Nova Scotia, Canada

BC Children's Hospital

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Vancouver, British Columbia, Canada

Ann & Robert H. Lurie Children's Hospital of Chicago

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Chicago, Illinois, United States

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