Objective: To analyze mediolateral joint powers at the low back during gait among persons with and without unilateral transfemoral amputation to better understand the functional contributions of tissues in and around the low back to altered lateral trunk movements in this population.
Design: Retrospective analysis of biomechanical gait data.
Setting: Gait laboratory.
Participants: Twenty persons with unilateral transfemoral amputation and 20 uninjured controls (N=40).
Interventions: Not applicable.
Main Outcome Measures: Net joint powers, and total generation (+) and absorption (-) energies, at the low back (L5/S1 spinal level) were analyzed in the frontal plane using inverse dynamics analyses on over-ground gait data collected at self-selected walking speeds (∼1.3m/s).
Results: Compared with uninjured controls, 4 distinctly larger positive phases of mediolateral joint power at L5/S1 were evident in persons with transfemoral amputation, occurring before and after each heel strike. Total generation energies throughout the gait cycle were also larger (P<.001) among persons with transfemoral amputation (4.8±1.4J) than among uninjured controls (1.3±0.7J).
Conclusions: Larger positive phases of joint power at L5/S1 in the frontal plane support previous suggestions that persons with transfemoral amputation use a more active mediolateral trunk movement strategy, although such an active trunk movement strategy with transfemoral amputation may contribute to higher metabolic energy expenditures and low back pain risk.
Download full-text PDF |
Source |
|---|---|
| http://dx.doi.org/10.1016/j.apmr.2014.07.402 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Associations Between Skeletal Alignment and Biomechanical Symmetry Before and After Transfemoral Bone-anchored Limb Implantation.
Clin Orthop Relat Res
December 2024
Department of Orthopedics, University of Colorado School of Medicine, Aurora, CO, USA.
Background: Patients with transfemoral amputation experience socket-related problems and musculoskeletal overuse injuries, both of which are exacerbated by asymmetric joint loading and alignment. Bone-anchored limbs are a promising alternative to treat chronic socket-related problems by directly attaching the prosthesis to the residual limb through an osseointegrated implant; however, it remains unknown how changes in alignment facilitated through a bone-anchored limb relate to loading asymmetry.
Questions/purposes: What is the association between femur-pelvis alignment and hip loading asymmetry during walking before and 12 months after transfemoral bone-anchored limb implantation?
Methods: Between 2019 and 2022, we performed 66 bone-anchored limb implantation surgeries on 63 individuals with chronic socket-related problems.
Bioinspired origami-based soft prosthetic knees.
Nat Commun
December 2024
Department of Advanced Manufacturing and Robotics, College of Engineering, Peking University, Beijing, China.
Prosthetic knees represent a prevalent solution for above-knee amputation rehabilitation. However, satisfying the ambulation requirements of users while achieving their comfort needs in terms of lightweight, bionic, shock-absorbing, and user-centric, remains out of reach. Soft materials seem to provide alternative solutions as their properties are conducive to the comfort aspect.
View Article and Find Full Text PDFDesigning equipment to allow high-level pararowing for a person with bilateral transfemoral amputation: A case report.
Prosthet Orthot Int
December 2024
CNRS, INT UMR 7289, Aix Marseille Université, Marseille, France.
Rowing requires both the upper and lower body to be active for balance, steering, and propulsion, constituting a real challenge for athletes with disabilities. To our knowledge, adapted setups allowing pararowing for people with bilateral transfemoral amputation have not yet been described. This case report describes the adapted setup for Mr S, 24 years old, who underwent bilateral transfemoral amputation in 2019 after a motorcycle accident.
View Article and Find Full Text PDFTotal Hip Arthroplasty, via Direct Anterior Approach, With Contralateral Proximal Femur Amputation.
Arthroplast Today
December 2024
Department of Orthopaedic Surgery, The Queen Elizabeth Hospital, Woodville South, South Australia, Australia.
Lower limb amputation has been well characterized in the literature to cause resultant osteoarthritis in the hip of the contralateral limb. This further amplifies the already significant physical disability and morbidity that come with lower limb amputation. The use of total hip arthroplasty (THA) in patients with lower limb amputations is rare, with available literature subsequently also limited.
View Article and Find Full Text PDFThighplasty for Transfemoral Amputations and Osseointegration: Lower Rate of Complications Than Thighplasty for Body Contouring.
Plast Reconstr Surg Glob Open
December 2024
Department of Orthopaedic Surgery, The University of Pennsylvania Perelman School of Medicine, Philadelphia, PA.
Background: Modern techniques in lower extremity amputation have made significant advances to improve prosthetic control and soft-tissue envelopes through various techniques, including medial thighplasties. These advances are necessary to enhance the fit and functionality of the prosthesis in transfemoral amputations.
Methods: We performed a retrospective review of all thighplasties performed at our institution in patients with ipsilateral transfemoral amputation from November 2017 to December 2021.
Want AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!