University of Twente Student Theses
The effect of abduction bracing on preventing movements that pose a risk for hip dislocation : a randomized, crossover, single-center trial in nondisabled individuals
Tzanetis, Periklis (2018) The effect of abduction bracing on preventing movements that pose a risk for hip dislocation : a randomized, crossover, single-center trial in nondisabled individuals.
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| Abstract: | Background: Hip dislocation after total hip arthroplasty (THA) is a major complication which restricts the patient’s mobility and may lead to recurrent displacements. Rigid and non-rigid hip abduction braces are widely used as a non-operative method to prevent movement patterns that can pose a dislocation risk. However, their effectiveness remains controversial, and the patients’ compliance with these braces is not clearly established in the scientific literature. Research question: The primary objective of this study was to examine the effects of rigid and non-rigid braces on spatiotemporal and kinematic parameters in non-disabled individuals while performing different activities of daily living (ADL). The secondary aim of this research work was to evaluate the participants’ perspective of the braces. Methods: In this single-center, randomized, crossover trial, four subjects were analyzed. Three-dimensional gait analysis with a rigid, non-rigid, and without a brace in randomized order was conducted using a biomechanical cluster model consisting of retro-reflective markers and an optoelectronic motion capture system as the subjects performed 4 different ADL tasks; straight walking, figure-eight movement, squatting and picking up an object from the ground, and putting on shoes. Hip flexion, adduction, internal/external rotation angles, and spatiotemporal parameters were calculated. The participants’ perspective of the braces was evaluated through a questionnaire. Results: Analysis of spatiotemporal variables during straight walking revealed no significant differences between the unbraced and braced conditions. Furthermore, no significant kinematic effects of braces provision were found comparing the peak hip angles during the selected ADL tasks. However, noteworthy median peak differences were found on hip flexion with both braces compared to the unbraced condition, and adduction or exorotation between the unbraced and rigid braced condition. From the participants’ perspective of the braces, we conclude that although the rigid brace was more cumbersome compared to the non-rigid brace, it can be more effective in preventing movements that pose a dislocation risk. |
| Item Type: | Essay (Master) |
| Faculty: | EEMCS: Electrical Engineering, Mathematics and Computer Science |
| Subject: | 44 medicine |
| Programme: | Biomedical Engineering MSc (66226) |
| Link to this item: | https://purl.utwente.nl/essays/94977 |
| Export this item as: | BibTeX EndNote HTML Citation Reference Manager |
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