Effect of Transtibial Prosthesis Mass Alteration on Metabolic Activity and Outcomes
Conclusions Increasing prosthesis mass did not result in the worsening of metabolic activity and other selected outcomes among people with TTA. (Source: JPO Journal of Prosthetics and Orthotics)
Source: JPO Journal of Prosthetics and Orthotics - December 24, 2021 Category: Orthopaedics Tags: ORIGINAL RESEARCH ARTICLES Source Type: research

A Comparison of the Center of Pressure Trajectory Between Dynamic Response Prosthetic Feet Having Different Ankle Designs
Introduction Commercially available dynamic response (DR) prosthetic feet have unique ankle designs, which provide different degrees of ankle motion. Differences in ankle motion between the prosthetic and anatomical foot creates an asymmetry in the locomotor system and affects its functions of shock absorption, progression, and stabilization. Ankle motion during gait can be assessed by quantifying the center of pressure (CoP) movement during the stance period of gait. Although previous studies have compared gait parameters between DR and non-DR feet, no studies have examined difference in CoP trajectories among common ...
Source: JPO Journal of Prosthetics and Orthotics - December 24, 2021 Category: Orthopaedics Tags: ORIGINAL RESEARCH ARTICLES Source Type: research

Selecting Appropriate 3D Scanning Technologies for Prosthetic Socket Design and Transtibial Residual Limb Shape Characterization
Conclusions This study provides a platform to appraise new clinical shape capture technologies in the context of best practice in manual plaster casting and starts the conversation of which 3D scanning devices are most appropriate for different types of clinical use. The methods and benchmark results may support prosthetists in acquiring and applying their clinical experience, as part of their continuing professional development. (Source: JPO Journal of Prosthetics and Orthotics)
Source: JPO Journal of Prosthetics and Orthotics - December 24, 2021 Category: Orthopaedics Tags: ORIGINAL RESEARCH ARTICLES Source Type: research

The Long-Term Wearing of Foot Orthoses Can Change the Frequency Domain of Ground Reaction Forces in Children with Flexible Flat Feet
Introduction Analyzing the frequency content of ground reaction forces (GRFs) might be helpful when assessing gait abnormalities in children with flexible flatfeet. The aims of this study were therefore to evaluate 1) differences in GRF frequency content between children with and without flatfeet; and 2) whether the long-term wearing of foot orthoses changes the GRF frequency contents in children with flatfeet. Materials and Methods This is a pre-post study design. GRFs were collected at baseline for boys both with and without flatfeet. Boys with flatfeet wore custom-made foot orthoses with unique shoes for 4 mo...
Source: JPO Journal of Prosthetics and Orthotics - December 24, 2021 Category: Orthopaedics Tags: ORIGINAL RESEARCH ARTICLES Source Type: research

Finite Element Simulation of Frontal Plane Adaptation Using Full-Foot, Split-Toe, and Cam-Linkage Designs in Prosthetic Feet
Conclusions This finite element simulation study shows that a frictionless cam-linkage with frontal plane adaptability integrated into a prosthetic foot improved mediolateral forces, displacement, and frontal plane angular rotation of the proximal pylon compared with a locked linkage during the stance phase of gait when in contact with a 15-degree cross-slope. These findings may have implications for people using lower-limb prostheses if future studies demonstrate improved gait over uneven ground, or reduced pain, skin breakdown, and the work of walking. (Source: JPO Journal of Prosthetics and Orthotics)
Source: JPO Journal of Prosthetics and Orthotics - December 24, 2021 Category: Orthopaedics Tags: ORIGINAL RESEARCH ARTICLES Source Type: research

Impact of Level of Pediatric Amputation on Selection of Prosthetic Component Options
Conclusions The choices for optimal high-level prosthetic components are much less limited for transtibial amputation than more distal amputations leading to potentially less high-level prosthetic function. Managing the residual limb length and prosthetic fitting ability is an important element in pediatric amputations if the goal is to fit mature young adults with the highest functioning level prosthetic components. (Source: JPO Journal of Prosthetics and Orthotics)
Source: JPO Journal of Prosthetics and Orthotics - December 24, 2021 Category: Orthopaedics Tags: CME ARTICLES Source Type: research

Is the Story Over? Progression After Bracing in AIS
Introduction Despite successful bracing for adolescent idiopathic scoliosis (AIS), some curves progress after brace cessation. The purpose of this study was to identify the incidence, rate, and risk factors for progression after successful brace management of AIS. Materials and Methods Patients treated with orthoses for AIS were prospectively enrolled at brace initiation, followed through successful brace completion and, on average, for 33 months (range 12–95) after brace cessation. Inclusion criteria were curves 25° to 45° and Risser 0 to II at brace initiation with cessation at Risser IV with curves measur...
Source: JPO Journal of Prosthetics and Orthotics - December 24, 2021 Category: Orthopaedics Tags: CME ARTICLES Source Type: research

Clinical Practice Guidelines for the Prosthetics and Orthotics Profession
No abstract available (Source: JPO Journal of Prosthetics and Orthotics)
Source: JPO Journal of Prosthetics and Orthotics - December 24, 2021 Category: Orthopaedics Tags: EDITORIAL Source Type: research

Comparison of the Efficacy of Two Different Medial Linkage Mechanisms in Knee-Ankle-Foot Orthoses on Walking Ability in Subjects with Spinal Cord Injury
Conclusions This study demonstrated that the use of a KAFO with an MLRGM could provide significant benefits for patients with SCI when compared with a KAFO with a standard SM. (Source: JPO Journal of Prosthetics and Orthotics)
Source: JPO Journal of Prosthetics and Orthotics - September 22, 2021 Category: Orthopaedics Tags: CASE REPORTS Source Type: research

Kinetic and Kinematics Parameters of Hip in Gait for a Congenital Longitudinal Tibial Deficiency with Orthoprosthesis and Transfemoral Prosthesis: A Case Study
Conclusions This case study suggests that the new prosthesis provides removable and adaptable component; further, it delivers a comfortable sitting experience because of its new socket design and knee joint flexion. Clinical Relevance Patient satisfaction is better with TF prosthesis than with orthoprosthesis. TF prosthesis is more cosmetic than orthoprosthesis, provides a symmetrical gait pattern, decreases donning and doffing durations, and there is no uncomfortable protrusion when sitting (due to amputation of the foot and leg part). (Source: JPO Journal of Prosthetics and Orthotics)
Source: JPO Journal of Prosthetics and Orthotics - September 22, 2021 Category: Orthopaedics Tags: CASE REPORTS Source Type: research

Hydraulic- and Microprocessor-Controlled Ankle-Foot Prostheses for Limited Community Ambulators with Unilateral Transtibial Amputation: Pilot Study
Conclusion The results show varying benefits of the microprocessor- and hydraulic-controlled prosthetic components over fixed-ankle ESAR and FK feet, based on both performance-based and patient-reported outcome measures. Further studies are needed to fully evaluate these benefits in larger sample sizes. (Source: JPO Journal of Prosthetics and Orthotics)
Source: JPO Journal of Prosthetics and Orthotics - September 22, 2021 Category: Orthopaedics Tags: CASE REPORTS Source Type: research

Roll-Over Shape–Based Design of Novel Biomimetic Ankle-Foot Prosthesis
This study aimed to design the mechanical properties of ankle-foot prostheses to achieve specific ROSs during gait. Methods The authors developed a mathematical model that, when used in combination with ground reaction force and shank angle experimental data, predicts the ROS created by the novel Compliant and Articulating Prosthetic Ankle (CAPA) foot. The CAPA consists of four articulating components connected by torsion springs. Able-bodied individuals walked wearing a prosthetic simulator with the solid ankle cushioned heel foot, a dynamic response foot (the Renegade AT), and versions of the CAPA with distinctly ...
Source: JPO Journal of Prosthetics and Orthotics - September 22, 2021 Category: Orthopaedics Tags: ORIGINAL RESEARCH ARTICLES Source Type: research

The Effects of Polycentric Knee Design and Alignment on Swing Phase Gait Parameters: A Simulation Approach
Conclusions This study shows that polycentric knees, which generally perform better than single-axis knees with improved stance stability and ease of push-off, can also perform well during swing in terms of knee extension before heel contact and foot clearance throughout swing. The extended moment arm for the weight of the shank and foot due to the superior location of the IC in polycentric knees is the reason for the improved swing performance of polycentric knees. Appropriate placement of the socket adapter, which affects A/P alignment, is crucial so that foot clearance during swing is not compromised. The insights o...
Source: JPO Journal of Prosthetics and Orthotics - September 22, 2021 Category: Orthopaedics Tags: ORIGINAL RESEARCH ARTICLES Source Type: research

Optical Coherence Tomography for the Investigation of Skin Adaptation in Lower-Limb Prosthesis Users
Conclusions This study demonstrated the utility of two novel OCT imaging techniques for investigating skin adaptation in users of lower-limb prostheses. If we are able to confirm these findings on a larger subject population, we will better understand the biology behind mechanically induced skin adaptation. These findings, along with the noninvasive OCT imaging methods introduced here, would have the potential to improve clinical practice by enabling the development of rehabilitation techniques and therapeutics to better strengthen skin, thereby reducing the incidence of harmful skin breakdown. (Source: JPO Journal of ...
Source: JPO Journal of Prosthetics and Orthotics - September 22, 2021 Category: Orthopaedics Tags: ORIGINAL RESEARCH ARTICLES Source Type: research

Do Upper-Limb Loss and Prosthesis Use Affect Lower-Limb Gait Dynamics?
Conclusions Although the sample cohort was small and heterogeneous, the results of this study suggest that persons with unilateral ULL did not display significant limb side asymmetry in lower-limb gait spatiotemporal, kinetic, and kinematic parameters, regardless of ULP use. (Source: JPO Journal of Prosthetics and Orthotics)
Source: JPO Journal of Prosthetics and Orthotics - September 22, 2021 Category: Orthopaedics Tags: CME ARTICLES Source Type: research