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Minasian et al. Plast Aesthet Res 2022;9:18  https://dx.doi.org/10.20517/2347-9264.2021.128  Page 7 of 9

               of  respective  donor  and  recipient  lymphatic  vessels  must  be  in  close  proximity  to  achieve
                               [47]
               lymphangiogenesis . Lymphatic vessel free flaps may provide the advantage of decreased risk of donor site
               lymphedema compared to VLNT and carry them skin for soft tissue resurfacing.

               The initial report of LVFF in PTL was a case of upper extremity lymphedema secondary to degloving injury,
               treated with superficial circumflex iliac artery perforator lymphatic vessel (SCIP-LV) flap . There was
                                                                                              [46]
               clinical improvement within two weeks and a 55% reduction of excess limb volume at four months, with
               ICG uptake into the flap. A follow-up study included 11 patients who received SCIP-LV flaps to prevent (n
                                   [4]
               = 6) or treat (n = 5) PTL . In the PTL treatment group, the mean reduction of excess limb volume was 63%,
               and quality of life improved by 51%. No patients in the prevention group developed PTL.

               SUGGESTED DIAGNOSTIC AND TREATMENT PRACTICES
               Reconstructive surgeons should recognize critical lymphatic areas and keep these regions in mind as
               susceptible to lymphatic injury when evaluating trauma patients. Even small insults without massive trauma
               in a critical area should prompt close surveillance, with quick initiation of appropriate workup and
               treatment as needed.

               Workup for PTL should include ICG lymphography. The diagnostic gold standard, lymphoscintigraphy,
               can be normal in the setting of localized or superficial lymphatic dysfunction, which can be seen in PTL.
               ICG lymphography provides real-time visualization of the superficial lymphatics, allowing precise diagnosis
               and optimizing surgical planning.

               PTL treatment should be individualized per patient exam and ICG findings. All patients with PTL should be
               initiated early with conservative measures including compression and CDT. When reconstructing extremity
               defects, one should take into account critical lymphatic areas and choose options which are least disruptive
               to lymphatic function. Additionally, immediate reconstructive approaches can be tailored to include a
               lymphatic component, such as immediate LVA or a flap which contains nodes or lymphatic vessels. For late
               presentations with non-pitting or mixed presentations, liposuction can be added before, after, or
               concomitantly with these physiologic procedures .
                                                        [48]

               CONCLUSION
               Post-traumatic lymphedema is a complex, debilitating, and potentially common disease which has received
               limited attention to date. Awareness of injury to critical anatomic areas may help the reconstructive surgeon
               prevent lymphedema in the acute phase via surgical or nonsurgical techniques. Wider awareness of PTL and
               understanding of appropriate workup may facilitate earlier identification of these patients. Following
               diagnosis, treatment should be tailored to each patient depending on their needs, with a focus on restoring
               lymphatic physiology. Prospective and comparative studies are necessary to determine the incidence of PTL,
               as well as the optimal strategies for prevention and treatment.

               DECLARATIONS
               Authors’ contributions
               Made substantial contributions to conception and design of the study, drafting and revisions, as well as
               performed data acquisition, analysis and interpretation: Minasian RA, Brazio PS
               Made substantial contributions to data acquisition, analysis, and interpretation, as well as drafting of
               manuscript: Samaha Y
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