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| Name | Class |
|---|---|
| Stryker Instruments | INDUSTRY |
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There exists only limited scientific evidence concerning medium- to long-term benefits concerning minimally invasive (MI) total hip arthroplasty (THA). The investigators examined in a randomized study design 157 patients 8 years after THA, which were performed via 3 different surgical approaches.
In contrast to reported short-term advantages of minimally invasive (MI) total hip arthroplasty (THA) there exists only limited scientific evidence concerning medium- to long-term benefits.
The investigators therefore sought to answer the following questions: Is the functional medium-term outcome in THA patients with MI-anterior(MI-A) and MI-anterolateral (MI-AL) approach superior to those treated by direct lateral approach (DLA)? Is the level of life quality increased by MI-THA? Is patient satisfaction higher by MI-THA? Is the revision rate reduced by MI-THA?
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| Label | Type | Description | Intervention Names |
|---|---|---|---|
| anterior (MI-A) surgical approach | Active Comparator | The minimally invasive anterior surgical approach was carried out using a modified Smith-Petersen access as described by Bender et al. (Bender et al. 2009) with the patient in supine position. |
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| anterolateral (MI-AL) surgical approach | Active Comparator | For the minimally invasive anterolateral surgical approach, a modified Watson-Jones approach according to Röttinger (Rottinger et al. 2006) was applied with the patient in supine position. |
|
| direct lateral (DLA) surgical approach | Active Comparator | The direct lateral surgical approach was performed according to the technique described by Hardinge et al. (Hardinge et al. 1982) with the patient positioned supine |
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| Name | Type | Description | Arm Group Labels | Other Names |
|---|---|---|---|---|
| surgical approach | Other |
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| Measure | Description | Time Frame |
|---|---|---|
| Physical function hip - Harris-Hip-Score (HHS) | Harris-Hip-Score (worst=0, best=100) | change from baseline (preoperative) at 8 years after THA |
| Measure | Description | Time Frame |
|---|---|---|
| Physical function hip - WOMAC | WOMAC Total Score (worst=0, best=100) | change from baseline (preoperative) at 8 years after THA |
| Satisfaction Level | Satisfaction scale (worst=0, best=10) |
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Inclusion Criteria:
Exclusion Criteria:
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| Name | Affiliation | Role |
|---|---|---|
| Maik Stiehler, MD | University Center for Orthopaedics and Trauma Surgery, University Hospital Carl Gustav | Principal Investigator |
| Facility | Status | City | State | ZIP | Country | Contacts |
|---|---|---|---|---|---|---|
| University Hospital Dresden, Orthopaedic Department | Dresden | 01307 | Germany |
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| ID | Term |
|---|---|
| D015207 | Osteoarthritis, Hip |
| ID | Term |
|---|---|
| D010003 | Osteoarthritis |
| D001168 | Arthritis |
| D007592 | Joint Diseases |
| D009140 | Musculoskeletal Diseases |
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single-center prospective randomized study design
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| at 8 years after THA |
| health related Quality of life - Index | EuroQol in 5 dimensions (EQ-5D) Index (worst=0, best=1) | change from baseline (preoperative) at 8 years after THA |
| health related Quality of life - VAS | EQ-Visual Analogue Scale (worst=0, best=100) | change from baseline (preoperative) at 8 years after THA |
| Physical Activity | University of California, Los Angeles (UCLA) Activity Scale (worst=1, best=10) | change from baseline (preoperative) at 8 years after THA |
| Revision rate | Revision rate using Kaplan-Meier-Survival Analysis | at 8 years after THA |
| Physical Activity Performance Test: walking | 25-meter walking time | change from baseline (preoperative) at 8 years after THA |
| Physical Activity Performance Test: stair climbing | 5-step walking time | change from baseline (preoperative) at 8 years after THA |
| D012216 |
| Rheumatic Diseases |