The Natural History of Injury-Related Disuse Osteopenia

Completed

• Conditions: Osteopenia

• Registration Number: NCT03868085
• Lead Sponsor: Milton S. Hershey Medical Center

Brief Summary

Determine the severity and time course (natural history) of disuse osteopenia that occurs in the lower extremity(ies) and lumbar spine of patients sustaining lower extremity injuries that require the patient to maintain restricted weight bearing status (12 weeks) following the surgical fixation of the patient's injuries.

The investigators hypothesize that there will be a significant decrease in the bone mineral density in the lower limbs of patients undergoing restricted weight bearing for peri-articular injuries of the lower extremity. This loss of bone mineral density is often prolonged in its duration and may lower subsequent fracture threshold and prolong the time to recovery and return to activities.

Detailed Description

It is well documented that restricted weight bearing even for relatively short periods (12 weeks) associated with the surgical treatment of peri-articular injuries of the lower extremity (ie acetabulum, distal femur, tibial plateau, pilon, talus, calcaneus) can lead to a measurable decrease in bone density in the injured limb. Furthermore, this osteopenia can persist for extended periods of time - much longer than the original period of restricted weight bearing. This relative osteopenia can delay recovery from injury, lower fracture threshold for subsequent injury and potentially delay return to active duty in the case of a wounded warrior. There exists a significant body of research in the modulation of the osteopenia associated with restricted weight bearing as it pertains to long term space flight (microgravity).

Study Timeline

• Study First Submitted: 2017-05-30
• Study Start: 2017-05-31
• Study First Submitted QC: 2019-03-07
• Study First Posted: 2019-03-08
• Primary Completion: 2020-11-04
• Study Completion: 2020-12-10
• Status Verified: 2023-02
• Last Update Submitted: 2023-02-27
• Last Update Posted: 2023-02-28

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 51

Inclusion Criteria

1. Age 18-70 at time of injury
2. Previously normal community ambulator (without ambulatory aid) prior to injury

Exclusion Criteria

1. Presence of a total or hemi hip prosthesis in the injured extremity
2. Presence of lumbar fusion L1-L4
3. Previous ipsilateral lower extremity trauma
4. History of medical treatment for known osteoporosis (Calcium and Vitamin D supplementation alone is NOT an exclusion criteria)
5. Ambulatory dysfunction prior to injury
6. Inability to cooperate with DXA scanning
7. Head injury on admission requiring invasive monitoring or treatment
8. Inability to adhere to weight bearing restrictions
9. Inability to provide consent
10. Non English speaking
11. Pregnancy

Study & Design

• Study Type: OBSERVATIONAL
• Study Design: Not specified

Primary Outcome Measures

Name	Time	Method
Determine the natural history of disuse osteopenia following restricted weight bearing from a lower extremity articular injury	36 months	Hip bone mineral density (DXA) of control and injured limb will be measured following weight bearing restrictions as part of treatment of lower limb articular injury and again following resumption of weight bearing after healing of the injury.

Trial Locations

Locations (1)

Milton S. Hershey Medical Center; 🇺🇸 Hershey, Pennsylvania, United States