Zusammenfassung
Operationsziel
Defektdeckung mit temporoparietalem Faszienlappen.
Indikationen
Dünner, gut durchbluteter, ein- oder zweischichtiger Faszienlappen. Verwendung als sensible fasziokutane lokale Lappenplastik, als Mehrkomponententransplantat osteofaszial mit und ohne behaarte Kopfhaut sowie als zweischichtiges Sehnengleitlager möglich. Maximal 17 × 14 cm große Weichteildefekte.
Kontraindikationen
Absolut: Vorschädigung des Lappens bzw. Lappenstiels, Arteriitis temporalis, Defekte mit Volumenverlust, Moyamoya-Syndrom.
Relativ: Alopezie im Bereich der Schnittführung.
Operationstechnik
Präoperative dopplersonographische Darstellung der Stielgefäße (A. temporalis superficialis mit Endästen und Begleitvene). Anzeichnen der Schnittführung. Unterspritzung mit verdünnter Adrenalinlösung. Darstellung der temporoparietalen Faszie und Stielgefäße, wobei die Schonung der Haarbälge besonderer Aufmerksamkeit bedarf. Primärverschluss des Hebedefekts. Vollhaut oder Spalthautdeckung des Lappens und Vakuumversiegelung bzw. Anlage eines Überknüpfverbands.
Nachbehandlung
Ruhigstellung bei Defektdeckung an den Extremitäten in Lappenentlastungsposition, Hochlagerung zur Unterstützung des venösen Abflusses. Entfernung der Vakuumversiegelung bzw. des Überknüpfverbands am 5. postoperativen Tag. Beginn des Lappentrainings ab dem 7. postoperativen Tag. Fadenzug/Klammerentfernung an der Lappenentnahmestelle nach 5–7 Tagen, an der Empfängerregion nach 8–10 Tagen. Kompressionsbehandlung durch elastische Verbandsanlage oder Tragen eines Kompressionsüberzugs.
Ergebnisse
Bei 8 Patienten wurde der temporoparietale Faszienlappen zur Rekonstruktion von Weichteildefekten verwendet. In 2 Fällen kam der Lappen gestielt zur Anwendung. Die mittlere Einheilungszeit betrug 16,3 Tage, die mittlere Nachuntersuchungszeit 13,4 Monate. In allen Fällen konnte eine erfolgreiche Rekonstruktion mit gutem funktionellem und ästhetisch ansprechendem Ergebnis erzielt werden. Komplikationen wurden bei 3 Patienten beobachtet. Diese waren in einem Fall die iatrogene Schädigung des R. frontalis n. facialis, das Auftreten einer Alopezie an der Lappenentnahmestelle in einem weiteren Patienten und letztlich die Notwendigkeit der frühzeitigen (erfolgreichen) Revision bei Beeinträchtigung der Lappendurchblutung.
Abstract
Objective
Soft tissue reconstruction with a temporoparietal fascial flap (TPFF).
Indications
Defect coverage with thin, pliable, and well-vascularized tissue. A bilayered TPFF provides a gliding surface in tendon reconstruction. Further options include TPFF harvest with overlying skin or subjacent bone for composite tissue reconstruction or the application as a sensate local fascial flap. Maximum defect dimensions: 17 × 14 cm.
Contraindications
Absolute: prior injury to the flap or flap pedicle, temporal arteritis, Moyamoya syndrome, defects with volume deficit.
Relative: alopecia along the planned incision.
Surgical technique
Pedicle location is outlined using Doppler ultrasound. Injection of the incision line with diluted epinephrine solution. Skin incision with subsequent visualization of the temporoparietal fascia and supplying vessels. Skin flaps are raised carefully paying special attention to the hair follicles (CAVE: postoperative alopecia). Primary closure of the donor site. Defect coverage with pedicled or free TPFF with subsequent full or split-thickness skin grafting. Dressing: Bolster or V.A.C.
Postoperative management
Immobilization/elevation in the setting of extremity reconstruction. Removal of bolster dressing or V.A.C. on postoperative day 5. Dangling protocol instituted on postoperative day 7. Removal of sutures/staples at the donor site on postoperative day 5–7 and at the recipient site on postoperative day 12–14.
Results
The TPFF was utilized for soft tissue reconstruction in 8 patients. A pedicled TPFF was used in 2 patients. Mean time to healing was 16.3 days. Mean follow-up was 13.4 months. Successful reconstructive results with satisfactory functional and aesthetic appearance were obtained in all patients. Complications were encountered in 3 patients and included alopecia at the donor site and iatrogenic injury to the frontal branch of the facial nerve. Vascular compromise was observed in the early postoperative period in a third patient. However, operative revision resulted in successful flap salvage.
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Koulaxouzidis, G., Torio-Padron, N., Momeni, A. et al. Der temporoparietale Faszienlappen zur Rekonstruktion von Weichteildefekten. Oper Orthop Traumatol 24, 32–42 (2012). https://doi.org/10.1007/s00064-011-0097-8
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DOI: https://doi.org/10.1007/s00064-011-0097-8