Rhinoplasty with Fillers and Fat Grafting

Histology and Long-term Clinical Outcome of Crushed Cartilage with Double-layer Gelatin Sponge Membrane for Dorsum Refinement in Primary Rhinoplasty

This article demonstrates the ability to use autologous crushed cartilage grafts in rhinoplasty with rapid recovery and optimal nasal functionality without any tissue damage and allows its rapid rejuvenation. Eligible patients underwent primary rhinoplasty using autologous crushed cartilage graft followed by microscopy imaging of the grafted tissue after recovery. Tissue and cytological analysis using optical microscopy, transmission electronic microscopy (TEM), and scanning electronic microscopy (SEM) showed complete viability of chondrocytes, formation of new collagen fibers, neo-perichondrium, neo-angiogenesis, and exhibiting optimal aesthetic outcome. The surgical approach is easy to perform, feasible, and less time-consuming, with excellent tissue rejuvenation and rapid recovery.

The Role of Autologous Fat Grafting in Rhinoplasty

Rhinoplasty is one of the most popular aesthetic surgeries worldwide and often includes grafting techniques to achieve optimal results. One of these grafting techniques is autologous fat transfer, which has been used to increase volume, camouflage irregularities, and/or improve the quality of the nasal skin-soft tissue envelope. Moreover, minimally invasive approaches for altering the nasal appearance have recently increased and become known as "liquid" or "nonsurgical rhinoplasty." These nonsurgical approaches include altering the nasal appearance with filler injection to induce volumetric changes in lieu of extensive surgery. The use of fat grafting as a filler is favorable to achieve well-balanced aesthetic results without compromising the nasal skin-soft tissue envelope. This capability is partly because of the regenerative potential of fat grafts, serving to improve the quality of surrounding soft tissues. In contrast, commercial injectable fillers are inert. This article highlights the role of fat grafting in surgical and nonsurgical rhinoplasty to provide surgeons with an overview of the potential of these vastly abundant, biocompatible, and cost-effective grafts.

The longevity of the nonsurgical rhinoplasty: A literature review

INTRODUCTION

Non-surgical rhinoplasty is one of the terms used to describe the technique of injecting fillers into the nasal pyramid region for aesthetic, and sometimes functional, purposes. Although it is now an extremely popular practice, the techniques proposed and the products used are different. This inhomogeneity is also found regarding the treatment longevity.

METHOD

A literature review was conducted in accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines (PRISMA). It was realized to collect information on this disputed topic. Pubmed/MEDLINE database was explored.

RESULTS

A total of 228 articles were extracted from the basic literature search. 81 of these were excluded based on the content of the title and abstract. All 147 remaining articles were submitted for full-reading. 49 of these were excluded because the injection product used by the authors was not a hyaluronic acid based filler; while 82 of these were excluded because they provided no indication regarding the longevity of the treatment. Of the 16 selected studies, according to six authors, the duration of treatment is therefore between 8 and 12 months. For all the others, instead, the results seem to last longer than this period. The longest time interval was 8 years.

DISCUSSION AND CONCLUSION

Establishing with certainty the longevity of non-surgical rhinoplasty seemed to be extremely complex. In the light of this discordant data seems to be essential to deepen the argument. A study using imaging techniques and/or standardized photographic material appears essential to further investigate this controversial topic.

Nanofat: A therapeutic paradigm in regenerative medicine

Adipose tissue is a compact and well-organized tissue containing a heterogeneous cellular population of progenitor cells, including mesenchymal stromal cells. Due to its availability and accessibility, adipose tissue is considered a “stem cell depot.” Adipose tissue products possess anti-inflammatory, anti-fibrotic, anti-apoptotic, and immunomodulatory effects. Nanofat, being a compact bundle of stem cells with regenerative and tissue remodeling potential, has potential in translational and regenerative medicine. Considering the wide range of applicability of its reconstructive and regenerative potential, the applications of nanofat can be used in various disciplines. Nanofat behaves on the line of adipose tissue-derived mesenchymal stromal cells. At the site of injury, these stromal cells initiate a site-specific reparative response comprised of remodeling of the extracellular matrix, enhanced and sustained angiogenesis, and immune system modulation. These properties of stromal cells provide a platform for the usage of regenerative medicine principles in curbing various diseases. Details about nanofat, including various preparation methods, characterization, delivery methods, evidence on practical applications, and ethical concerns are included in this review. However, appropriate guidelines and preparation protocols for its optimal use in a wide range of clinical applications have yet to be standardized.