Quantitative Ultrasound for the Evaluation of Simple Bone Cyst Healing
Quantitative Ultrasound for the Evaluation of Simple Bone Cyst Healing
Simple bone cysts (SBCs), also known as unicameral bone cysts (UBCs), are benign bone
 lesions. Literature to date describes little agreement between clinicians on specific
 prognostic criteria for the prediction of cyst healing, recurrence or fracture. Evidence has
 shown that bone mineral density (BMD) is a reliable indicator of risk to SBC patients given
 its association with the mechanical properties of bone. There has been further exploration
 into the use of quantitative ultrasound to assess bone density by measuring the velocity of
 the ultrasound transmission over the bone. To determine whether the QUS can provide
 prognostic information with respect to cyst healing, recurrence or fracture with a SBC,
 further study is needed.
Arm 1 - Simple Bone Cyst Patients

 Inclusion Criteria

 1. Patients ≥ 2 and ≤ 21 years

 2. Patients with a diagnosis of simple bone cyst located in a long bone confirmed by
 imaging within 3 months prior to registration

 3. All patients and/or their parents or legally authorized representatives must sign a
 written informed consent. Assent, when appropriate, will be obtained according to
 institutional guidelines.

 Exclusion Criteria

 1. Patients with implants to stabilize the bone where the cyst is located.

 2. Patients with bone disease (i.e. osteogenesis imperfecta, cancer, osteoporosis,
 Paget's disease)

 3. Patients who are pregnant or breastfeeding

 4. Patients with a simple bone cyst crossing the growth plate

 Arm 2 - Healthy Controls

 Inclusion Criteria

 1. Patients ≥ 2 and ≤ 21 years

 2. All patients and/or their parents or legally authorized representatives must sign a
 written informed consent. Assent, when appropriate, will be obtained according to
 institutional guidelines.

 Exclusion Criteria

 1. Patients with bone disease (i.e. osteogenesis imperfecta, cancer, osteoporosis,
 Paget's disease)

 2. Patients receiving any bone-modifying agents (i.e. steroids, bisphosphanates, etc.)

 3. Patients who are pregnant or breastfeeding

 Arm 3 - Fracture patients

 Inclusion Criteria

 1. Patients ≥ 2 and ≤ 21 years

 2. Patients who have undergone any type of casting or surgical treatment for their
 fracture

 3. All patients and/or their parents or legally authorized representatives must sign a
 written informed consent. Assent, when appropriate, will be obtained according to
 institutional guidelines.

 Exclusion Criteria

 1. Patients with bone disease (i.e. osteogenesis imperfecta, cancer, osteoporosis,
 Paget's disease)

 2. Patients receiving any bone-modifying agents (i.e. steroids, bisphosphanates, etc.)

 3. Patients who are pregnant or breastfeeding