Evaluation of Orthopedic Knee Measurement Using Lunar iDXA

GE Healthcare36 enrolled

Overview

This study is to compare scans of the knee performed using new software designed specifically to look at the knee joint with those performed using approved software designed for scans of the hip.

Study Type

INTERVENTIONAL

Allocation

Purpose

DIAGNOSTIC

Masking

NONE

Enrollment

Conditions

Hemi Knee Arthroplasty Patello-femoral Osteoarthritis

Interventions

iDXA knee softwareDEVICE

Following surgery, subjects who have undergone knee arthroplasty will have the knee that has undergone arthroplasty (post-operative) scanned at least 8 weeks after surgery. During one visit, each subject will have the post-operative knee scanned 1 time using Lunar orthopedic application, and 3 times with the subject repositioned between scans using the Lunar orthopedic knee application (total of 4 scans). Lunar iDXA measurement procedures will be done

Eligibility

Sex: ALLMin age: 30 Years

Medical Language ↔ Plain English

Inclusion Criteria: 1. Adult (\>30 years) males and females. 2. Have had a hemi knee replacement of one knee at least 8 weeks ago. 3. Patello-femoral osteoarthritis is not a contraindication if person does not have symptoms from the patello-femoral joint. 4. Able to provide informed consent. 5. In good general health. Exclusion Criteria: 1. Neuromuscular or vascular disease in the affected leg. 2. Found to be unsuitable for hemi knee arthroplasty (KA) before or at surgery. 3. Preoperative extensions defect greater than 15 degrees. 4. Preoperative maximal flexion of less than 100 degrees. 5. Symptomatic patello-femoral osteoarthritis. 6. Insufficiency of anterior cruciate ligament (ACL) 7. Fracture sequalae (Intraarticular fracture and all tibial condyle fractures). 8. Previous osteotomy. 9. Previous extensive knee surgery. 10. Metabolic bone disease including osteoporosis with a T score of \<-2.5. 11. Rheumatoid arthritis. 12. Postmenopausal women on systemic hormone replacement therapy (HRT). 13. Long-term treatment with oral corticosteroids and/or bisphosphonates. 14. Inability to consent (such as Alzheimer's Disease). 15. Misuse of drugs or alcohol. 16. Serious psychiatric disease. 17. Disseminated malignant disease and treatment with radiotherapy or chemotherapy.

Locations (1)

CGM Research Trust - Princess Margaret Hospital

Cashmere, Christchurch, New Zealand

Outcomes

Primary Outcomes

Efficacy of Lunar orthopedic knee software.

This study will compare the bone density and bone mass measurements acquired with Lunar orthopedic knee software and for the same scans acquired with Lunar orthopedic software. A determination of precision of bone measurements acquired and analyzed with Lunar orthopedic knee software.

Time frame: 5 months from starting study.

Data from ClinicalTrials.gov

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