THA Kinematics and Sound for Subjects Implanted Using Various Surgical Approaches
| Status: | Completed |
|---|---|
| Conditions: | Hospital |
| Therapuetic Areas: | Other |
| Healthy: | No |
| Age Range: | 40 - 85 |
| Updated: | 11/8/2014 |
| Start Date: | June 2013 |
| End Date: | August 2014 |
| Contact: | Richard D Komistek, Ph D |
| Email: | rkomiste@utk.edu |
| Phone: | 865-974-4159 |
In Vivo Determination of THA Kinematics and Sound for Subject Implanted Using Various Surgical Approaches
In a previous study conducted within the Center for Musculoskeletal Research (CMR) on Total
Hip Arthroplasties (THA), it was determined that the investigators could simultaneously
capture in vivo sound and motion of the femoral head within the acetabular cup during
weight-bearing activities for subjects implanted with either a metal-on-polyethylene (MOP),
metal-on-metal (MOM) or ceramic-on-ceramic (COC) THA. This was the first study to apply
sound analysis as an impulse excitation technique for testing hip conditions and for
measuring femoral head sliding in the acetabular component of human hip joints by acoustic
means. Unfortunately, no studies have been conducted to compare the in vivo kinematics and
sound for subjects implanted using various surgical approaches. It could be hypothesized
that subjects having various surgical approaches could lead to an increase or reduction of
in vivo hip separation. Therefore, the objective of this study is to analyze a total of 30
subjects implanted with either an anterior (10 patients), anterior-lateral (10 patients), or
posterior-lateral (10 patients) surgical approach to determine if any of these surgical
approaches leads to less or more in vivo hip separation. All subjects will be analyzed under
in vivo weight-bearing conditions using video fluoroscopy to determine in vivo motion.
Hip Arthroplasties (THA), it was determined that the investigators could simultaneously
capture in vivo sound and motion of the femoral head within the acetabular cup during
weight-bearing activities for subjects implanted with either a metal-on-polyethylene (MOP),
metal-on-metal (MOM) or ceramic-on-ceramic (COC) THA. This was the first study to apply
sound analysis as an impulse excitation technique for testing hip conditions and for
measuring femoral head sliding in the acetabular component of human hip joints by acoustic
means. Unfortunately, no studies have been conducted to compare the in vivo kinematics and
sound for subjects implanted using various surgical approaches. It could be hypothesized
that subjects having various surgical approaches could lead to an increase or reduction of
in vivo hip separation. Therefore, the objective of this study is to analyze a total of 30
subjects implanted with either an anterior (10 patients), anterior-lateral (10 patients), or
posterior-lateral (10 patients) surgical approach to determine if any of these surgical
approaches leads to less or more in vivo hip separation. All subjects will be analyzed under
in vivo weight-bearing conditions using video fluoroscopy to determine in vivo motion.
Inclusion Criteria:
- Post-operative clinical evaluation judged successful using Harris Hip Scoring (HHS)
system (HHS>90)
- Body weight less than 270 lbs
- No evidence of post-operative hip subluxation or dislocation
- Do not walk with detectable limp
- Be able to actively abduct their operated hip against gravity without difficulty
- Must be willing to sign Informed Consent and Health Insurance Portability and
Accountability (HIPAA) forms
Exclusion Criteria:
- Pregnant, lactating or females not using reliable form of birth control
- Patients that do not meet study requirements
- Patients unwilling to sign Informed Consent or HIPAA forms
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