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Sentinel lymph node dissection (SLND) and radical lymph node dissection (RLND) represent standard surgical procedures in skin cancer patients. Complications may arise, with seroma formation being the most prevalent. Although both conservative and surgical approaches have been undertaken in effort to reduce the occurrence of postoperative seroma, none have been able to show a beneficial effect. Therefore, the aim of our study was to examine the rate of complications in RLNDs and SLNDs in respect to the influence of different preventative techniques on potential seroma formation. We performed an evaluation of all SLNDs and RLNDs within a 2-year period at our hospital. The primary focus was seroma formation, with secondary points being infection, wound healing problems (WHP), and lymphedema, as well as the total length of hospital stay and revision surgery. Three hundred eighty-nine patients were recorded, of which 268 patients (69 %) underwent an SLND while 121 patients (31 %) underwent an RLND. Seroma in RLNDs occurred significantly more frequently with 46.3 % compared to SLNDs with only 11.6 %. Pressure and vacuum dressings were associated with a considerably higher chance of seroma formation, namely 3.5 and 2.1 times more than with a normal dressing. Other methods such as ligation, clipping, fibrin glue, or a sartorius flap showed no effects. RLNDs are associated with a higher rate of seroma regardless of surgical or postoperative approach, whereas SLNDs only induce a few side effects. Further infections, wound healing problems, and lymphedema were significantly associated with seroma formation. Level of Evidence: Level IV, risk / prognostic study

Meralgia paraesthetica represents a neuropathy involving pain, burning, tingling, and numbness in the distribution of the lateral femoral cutaneous nerve (LFCN) of the thigh, which is commonly due to nerve entrapment under the inguinal ligament. We report an unusual case of compression of the LFCN at the anterior surface of the sartorius muscle in a professional female soccer player. Intraoperatively, the LCFN was found to pass without major compression under the inguinal ligament, but was strained over a fibrous thickening of the superficial thigh fascia and the anterior medial border of the sartorius muscle 8cm caudal of the inguinal ligament. Excision of the fibrous tissue completely resolved the symptoms. In professional athletes, the LFCN should be explored along its entire course on the anterior thigh during operative decompression to rule out a distal muscular compression site. Level of evidence: Level V, therapeutic study

Background Buttock augmentation is gaining increasing popularity in aesthetic surgery. The relatively high incidence of complications after silicone implant placement lead to the increased use of lipofilling techniques, yielding variable results with respect to graft take rate and long-term stability. Platelet-rich plasma (PRP) has been shown to have beneficial effects on wound healing and angiogenesis in the past. Therefore, we aimed at investigating the long-term results and patient satisfaction after PRP-enriched lipofilling for buttock augmentation. Methods Twenty-four bilateral gluteal augmentations with PRP-enriched autologous fat were performed. Additionally, contour shaping was achieved by liposuction of the adjacent zones. Post-operative results and complications were recorded, and satisfaction with buttock shape was estimated by a patient questionnaire. Results Mean follow-up time was 44 months, and mean amount of transferred fat was 481 cc for both sides. No seroma or hematoma formation, infection or liponecrosis were reported during the post-operative follow-up. Subjective patient satisfaction in general increased from preoperatively to 3 months postoperatively and declined only slightly in the long-term course. Satisfaction levels in general were specific for each patient. Patient recovery was quick, and the majority of patients returned to work within 10 days after surgery. Conclusions PRP-enhanced lipofilling of the buttocks proved to be a safe procedure including a low complication rate and consistent results. However, subjective patient expectations have to be taken into account when choosing the indication. Further large volume studies are needed to elucidate the potential and benefit of PRP in this context. Level of Evidence: Level IV, therapeutic study.