Table 1.
Residual limb models characteristics.
Fig 1.
Residual limb scanning and processing procedures.
A) Example of transtibial residual limb with the three anatomical markers; B) Romer scanning conditions; C) Artec Eva scanning conditions; D) Romer (pink) and Artec Eva (blue) 3D models prior to alignment; E) aligned models with the plane 0, defined as the plane passing through the distal border of the three reference points; F) CSAs along the residual limb.
Fig 2.
Top panel: Bland-Altman plots for model volumes calculated with the criterion (Romer scanner) and the practical (Artec Eva scanner) measurement system; Bottom panel: modified Bland-Altman plots displaying the error of volumes measured with the practical (Artec Eva) scanner expressed as a percentage of the Romer scanner volumes (average between trials). The open circles represent transtibial models, while the full circles represent transfemoral models. The dashed lines indicate the upper and lower 95% limits of agreements.
Fig 3.
Example comparison of the same model collected with the 2 different scanners from the same observer for a right-sided trans-femoral models (A) and a left-sided transtibial model (B). RMSE differences are indicated by the coloured scale on the left (red positive mean values indicate that the Artec Eva scanner measured a bigger volume). From left to right: anterior view, lateral view, medial view and posterior view of the residual limb model.
Table 2.
Validity results.
Fig 4.
Residual limb shape validity results.
The graphs represent the bias and limits of agreement for CSAs and PE calculated for each section along the residual limb model, and expressed both in absolute units and as a relative percentage of the Romer scanner’s original measure (0% indicates the first proximal section of the residual limb model).
Table 3.
Reliability results.
Fig 5.
Residual limb shape reliability results.
The graphs represent the TEMs and the lower and upper CL for CSAs and PE calculated for each section along the residual limb model, and expressed in absolute units and as percentage of the Romer scanner’s original measure. Grey lines indicate intra-reliability results. Black lines indicate inter-reliability results (0% indicates the first proximal section of the residual limb model).