Short answer

When designing for facial applications, consider that localized volume augmentation can induce predictable volumetric and positional shifts in surrounding anatomical areas, impacting the overall perceived form.

Field: Classic Design
Source: Aesthetic Surgery Journal (2015)
Method: Quantitative 3D imaging and anatomical verification.
Sample: 16 cadaver hemi-faces
Evidence: Strong effect

Injecting calcium hydroxyapatite into the malar region of the midface can lead to a three-dimensional lifting effect and lateral movement of the nasolabial fold, indicating a shift in facial contours. This classic design research insight is drawn from a 2015 study published in Aesthetic Surgery Journal. Using Quantitative 3d imaging and anatomical verification. with 16 cadaver hemi-faces, researchers explored how this design variable affects real-world outcomes. The key design takeaway: When designing for facial applications, consider that localized volume augmentation can induce predictable volumetric and positional shifts in surrounding anatomical areas, impacting the overall perceived form.

Study

Classic DesignHigh ImpactStrong effect

Malar injections create a measurable lifting effect and lateral displacement of facial features.

Aesthetic Surgery Journal · 2015

Key Findings

01Malar injections resulted in increased projection at the injection site.
02There were associated decreases in projection and volume in infero-medial locations.
03Relative volume increases of 3.16 cc and 4.94 cc were observed after 1.5-cc and 3-cc injections, respectively.
04The nasolabial fold volume decreased by -0.3 cc and -0.4 cc after 1.5-cc and 3-cc injections, respectively.
05Lateral movements of the nasolabial fold/nasolabial crease junction were measured at various facial points.

Application

Design takeaway

How to apply

When designing facial prosthetics or simulation models, incorporate an understanding of how volume displacement in one area can affect the perceived shape and position of adjacent features, such as the nasolabial folds.

Project actions

01Consider how your design might cause unintended changes in surrounding areas.
02Use 3D modelling software to visualize these volumetric shifts.
03Think about the 'domino effect' of design changes.

Method & Evidence

AimTo analyze the three-dimensional volume and positional changes in the midface and nasolabial fold following malar calcium hydroxyapatite injections using a cadaver model.

MethodQuantitative 3D imaging and anatomical verification.

ProcedureCalcium hydroxyapatite was injected into the supraperiosteal plane of cadaver hemi-faces. Sequential 3D images were captured before and after 1.5-cc and 3-cc injections. Volume changes in the midface and nasolabial fold, as well as lateral movement at the nasolabial fold/crease junction, were measured.

Sample16 cadaver hemi-faces

ContextFacial aesthetics and reconstructive surgery.

Variables

IVVolume of calcium hydroxyapatite injected (1.5 cc, 3 cc).

DVThree-dimensional volume changes in the midface and nasolabial fold; lateral movement of the nasolabial fold/nasolabial crease junction.

CVInjection plane (supraperiosteal), surgeon performing injections, imaging system used, anatomical verification.

Strengths & Limitations

Strengths

+Utilized a 3D imaging system for precise volumetric and positional measurements.
+Employed a cadaver model to control for biological variability and allow for anatomical verification.

Limitations

The cadaver model may not fully represent the elasticity and vascularity of living tissue, potentially affecting the accuracy of the observed effects in real-world applications.

Reliability & validity

Reliability is supported by measurements being performed by a single expert. Validity is enhanced by anatomical dissection to verify injection placement.

Think critically

How might the dynamic nature of living tissue, as opposed to a cadaver model, alter the observed volumetric and positional changes?

Design Principles

"Form follows function, and in the context of facial design, 'function' includes the dynamic interplay of anatomical structures and their response to interventions."

Understanding how specific interventions alter facial topography is crucial for designers working in areas such as medical device design, prosthetics, or even character design in digital media. This research provides quantifiable data on the spatial changes that can occur, informing design decisions that aim to replicate or counteract such effects.

What This Means for Your Design

Putting filler in your cheekbones can make your smile lines look smaller and push the sides of your smile lines outwards.

How to use in your project

1.Reference this study when discussing how your design solution addresses or accounts for the spatial and volumetric relationships between different components or features.
2.Use the findings to justify design choices related to form, proportion, or the simulation of anatomical changes.

Add to My Project

Quick Cite

Paragraph starter

This research demonstrates that localized volumetric augmentation in the midface can lead to predictable three-dimensional changes, including increased projection at the injection site and lateral displacement of adjacent features like the nasolabial fold. This highlights the importance of considering the interconnectedness of form and function within complex systems, as design interventions in one area can induce measurable shifts in others, impacting the overall aesthetic and structural integrity.

Source

Aesthetic Surgery Journal

Three-Dimensional Changes in the Midface Following Malar Calcium Hydroxyapatite Injection in a Cadaver Model

journal · 2015

View source

Questions About This Research

What does the research say about malar injections create a measurable lifting effect and lateral displacement of facial features?: When designing for facial applications, consider that localized volume augmentation can induce predictable volumetric and positional shifts in surrounding anatomical areas, impacting the overall perceived form. Evidence: Aesthetic Surgery Journal (2015).
Why does "Malar injections create a measurable lifting effect and lateral displacement of facial features." matter for design?: Understanding how specific interventions alter facial topography is crucial for designers working in areas such as medical device design, prosthetics, or even character design in digital media. This research provides quantifiable data on the spatial changes that can occur, informing design decisions that aim to replicate or counteract such effects.
How can designers apply this research?: When designing for facial applications, consider that localized volume augmentation can induce predictable volumetric and positional shifts in surrounding anatomical areas, impacting the overall perceived form.
What were the main findings?: Malar injections resulted in increased projection at the injection site.. There were associated decreases in projection and volume in infero-medial locations.. Relative volume increases of 3.16 cc and 4.94 cc were observed after 1.5-cc and 3-cc injections, respectively.. The nasolabial fold volume decreased by -0.3 cc and -0.4 cc after 1.5-cc and 3-cc injections, respectively.
What research method was used?: Quantitative 3D imaging and anatomical verification. with 16 cadaver hemi-faces.
How strong is the evidence?: Evidence strength is rated Strong effect, based on a 2015 journal from Aesthetic Surgery Journal.
What should I do differently in my next project?: When designing facial prosthetics or simulation models, incorporate an understanding of how volume displacement in one area can affect the perceived shape and position of adjacent features, such as the nasolabial folds.
What are the limitations?: The study was conducted on cadavers, which may not perfectly replicate the dynamic responses of living tissue. The measurements were performed by a single examiner, introducing potential for individual bias.