AI Article Synopsis
- Revision of metal-on-metal total hip arthroplasty (THA) or hip resurfacing is linked to high complication rates, prompting researchers to explore dual-mobility components as a surgical alternative.
- A study was conducted on 18 patients who underwent revision surgery using dual-mobility components, showing significant improvements in pain and function at an average follow-up of 17.5 months.
- Results indicated that dual-mobility devices effectively reduce the risk of dislocations and other complications, making them a promising option for revising failed MoM THA or hip resurfacing.
Article Abstract
Revision of metal-on-metal (MoM) total hip arthroplasty (THA) or hip resurfacing is associated with high complication rates. The authors propose dual-mobility components as a surgical option and present short- to mid-term results of MoM hips revised with dual-mobility components. Eighteen consecutive hips that underwent revision of MoM THA or hip resurfacing using dual-mobility components were identified. At final follow-up (mean, 17.5 months), the visual analog scale, modified Harris Hip Score, and SF-12 scores had all improved (P<.05, P<.01, and P<.05, respectively). There were no dislocations or other complications. Revision of failed MoM THA or hip resurfacing using a dual-mobility device is an effective strategy.
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| http://dx.doi.org/10.3928/01477447-20150603-04 | DOI Listing |
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Article Synopsis
- Instability after total hip arthroplasty (THA) is a key reason for needing revision surgeries, highlighting the importance of achieving stability through different femoral systems.
- The study used Autodesk Fusion 360 software to simulate and analyze how various head and neck sizes affect the arc of motion (AOM) and jump distances (JDs) in THA and dual mobility systems.
- Results showed that while larger head sizes generally increase AOM, benefits plateau after 36 mm, and using modern polyethylene liners can enhance stability; thus, choosing between THA and dual mobility involves weighing minimal gains in head size against increased stability with larger heads.
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