@article{BernuthVaterFuchsetal.2023,
  author    = {Bernuth, Silvia and Vater, Adrian and Fuchs, Konrad F. and Meffert, Rainer H. and Jakubietz, Rafael G.},
  title     = {Perfusion changes in perforator-based propeller flaps},
  series = {Journal of Reconstructive Microsurgery Open},
  volume    = {8},
  journal   = {Journal of Reconstructive Microsurgery Open},
  number    = {1},
  issn      = {2377-0813},
  doi       = {10.1055/a-2086-4988},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-350491},
  pages     = {e45-e50},
  year      = {2023},
  abstract  = {Background  To cover soft tissue defects, the perforator-based propeller flap offers the option to rotate healthy tissue into complex wounds. By rotating the flap, the perforator is torqued. As a result, perfusion changes are possible. Methods  A retrospective data analysis of patients was done, who received a propeller flap to cover soft tissue defects of the lower extremity as well as a peri- and postoperative perfusion monitoring with a laser-Doppler-spectrophotometry system. Additionally, patient-specific data were collected. Results  Seven patients were identified. Four patients experienced early complications, two epidermolysis of the distal flap areas, three wound healing disorders, and one partial flap necrosis. Intraoperative perfusion monitoring showed a decline of blood flow after incision of the flap, especially at distal flap site. In case of complications, there were prolonged blood flow declines up to the first postoperative day. Conclusion  Torqueing the perforator by rotating the flap can cause an impairment in inflow and outflow. If the impairment is prolonged, perfusion-associated complications are possible. The identification of a viable perforator is particularly important. In addition, a conservative postoperative mobilization is necessary to compensate for the impaired and adapting outflow.},
  language  = {en}
}
@article{EidmannEisertRudertetal.2022,
  author    = {Eidmann, Annette and Eisert, Marius and Rudert, Maximilian and Stratos, Ioannis},
  title     = {Influence of Vitamin D and C on bone marrow edema syndrome — A scoping review of the literature},
  series = {Journal of Clinical Medicine},
  volume    = {11},
  journal   = {Journal of Clinical Medicine},
  number    = {22},
  issn      = {2077-0383},
  doi       = {10.3390/jcm11226820},
  url       = {http://nbn-resolving.de/urn:nbn:de:bvb:20-opus-297356},
  year      = {2022},
  abstract  = {Bone marrow edema syndrome (BMES) is a rare disease with a largely unknown etiology. The aim of this scoping review is to systematically evaluate and combine the available evidence about vitamin D and C and BMES. The analysis of the manuscripts was based on country of origin, number of patients, gender, study type, epidemiology, localization, bone mineral density measurements, vitamin status and therapy. Sixty studies were included. The overall number of patients was 823 with a male-to-female ratio of 1.55:1 and a mean age of 40.9 years. Studies were very heterogeneous and of diverging scientific scope with a weak level of evidence. The hip was the most affected joint, followed by the foot and ankle and the knee; 18.3\% of patients suffered from multifocal BMES. Sixteen studies reported on vitamin D levels, resulting in a high prevalence of vitamin D deficiency (47\%) and insufficiency (17.9\%) among BMES patients. Three BME manuscripts were associated with vitamin C deficiency. Current therapeutic interventions include conservative measures (mainly unloading), various osteoactive drugs and iloprost. In summary, data about BMES in association with vitamin status is limited. A causal relationship between vitamin D or vitamin C status, osteopenia, and BMES cannot be determined from the existing literature.},
  language  = {en}
}