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Propeller Flap

The propeller flap is an island flap that reaches its recipient site through axial rotation (90–180°) around a single perforator vessel, which serves as the pivot point.[1][2] Per the 2009 Tokyo Consensus, a flap qualifies as a propeller only if it is (1) island-shaped, (2) has an axis that includes the perforator(s), and (3) is rotated around that axis.[1] This design combines the reliability of perforator-based vascularization with the wide arc of rotation of a transposition flap, enabling one-stage reconstruction of complex defects using local tissue with minimal donor-site morbidity — a principle increasingly applied to penoscrotal, perineal, vulvar, and urethral reconstruction.

This page is the foundations-level deep dive on the propeller principle in GU reconstruction. The variant-specific PMTP Propeller Flap page covers the deep-femoral-perforator workhorse in technique-level detail.

Geometric Principle​

The propeller flap is conceptually distinct from the geometric flaps in the rest of this section (Z-plasty, rhomboid (Limberg), bilobed). Rather than relying on a fixed geometric template, the propeller is designed in freestyle fashion around a single identified perforator vessel:[2][3]

StepDetail
Perforator identificationPreoperative handheld Doppler or multidetector-row CT angiography. MDCT provides high-resolution 3D images of the perforator's position and subcutaneous course[4]
Skin-island designElliptical / lenticular island centered on the perforator. The perforator divides the flap into a larger "propeller blade" (directed toward the defect) and a smaller blade (rotates into the donor site or is closed primarily). Blade ratio adjustable to defect size[2][3]
RotationThe flap is elevated as a complete island, the perforator is skeletonized, and the skin paddle is rotated 90–180° around the perforator axis — analogous to a propeller blade spinning on its shaft. A 180° rotation places the larger blade directly into the defect[1][5]

Tokyo Consensus classification[1]​

  • Subcutaneous-pedicled propeller flap — rotates on a subcutaneous tissue pedicle
  • Perforator-pedicled propeller flap — rotates on a skeletonized perforator vessel (most common in GU reconstruction)
  • Supercharged propeller flap — adds a venous anastomosis to augment outflow

Why propeller differs from other local flaps​

The propeller's freedom of design — any perforator in any body region can serve as the pivot — makes it the most versatile local-flap concept. Unlike the rhomboid flap (fixed 60° / 120° geometry) or bilobed flap (fixed dual-lobe template), the propeller adapts its shape entirely to the defect and the available perforator anatomy.[2]

Urologic Applications​

Penoscrotal resurfacing — internal pudendal artery perforator (IPAP) propeller flap​

The most significant urologic application is the IPAP propeller flap from the gluteal fold for extensive penoscrotal reconstruction:[6]

  • 10 consecutive patients with extensive penoscrotal defects (Fournier's gangrene, foreign-body injection, trauma, cancer)
  • The IPAP was identified with handheld Doppler and served as the pivot. The flap was internally rotated > 90° in tension-free fashion, with the long axis centered on the gluteal fold
  • Mean flap dimensions 6.7 × 11.7 cm
  • No major complications over mean 19.7 mo follow-up; one case of partial distal necrosis healed spontaneously
  • All patients satisfied with cosmetic and functional results
  • The gluteal-fold donor site provides a natural-appearing scrotal pouch with a hidden donor scar and optimal skin thickness / pliability

The gluteal-fold skin closely matches scrotal skin in thickness, texture, and color — a critical aesthetic advantage.

Perineoscrotal reconstruction after Fournier's gangrene​

Several propeller configurations have been described:

  • Posteromedial thigh (PMT) propeller flap — Scaglioni 2015: a 9 × 23 cm PMT propeller flap based on two profunda-femoris perforators for a 10 × 12 cm scrotal defect after Fournier's gangrene with complete flap survival.[7]
  • Vertical posteromedial thigh (vPMT) propeller flap — Wishart 2021: 21 pedicled vPMT flaps in 12 patients (3 scrotal, 8 perianal, 5 vulvar). 18/21 rotated in propeller fashion. Flap sizes 5–9 × 18–35 cm. All flaps survived; all donor sites primarily closed.[8]
  • Propeller PMTP flap — Kwon 2021: 8 patients with extensive perineal defects (infection and skin cancer) reconstructed with PMTP propeller flaps rotated 180°. Mean flap 256.5 cm². All flaps survived without major complications over mean 22.4 mo.[9] (See PMTP Propeller Flap for technique-level detail.)

A 2026 SR of 619 patients / 625 flaps for Fournier's reconstruction reported flap loss in only 1.6% of cases, with medial-thigh, pudendal-thigh, ALT, and gracilis flaps most commonly utilized — propeller designs have been increasingly described in this group.[10]

Perineal-urethrostomy revision​

Schulster et al. (2021) described a novel application — a posterior-thigh propeller flap for perineal urethrostomy (PU) revision in complex cases at high risk for stenosis:[11]

  • The stenotic PU was incised, and a propeller flap was designed around the posterior-thigh perforator closest to the defect
  • The flap was elevated and rotated on its pedicle, with the apex placed directly into the urethrotomy defect and partially tubularized to a 30 Fr calibre
  • At 17 months: patent PU, voiding well, low post-void residual

The principle is generalizable: for challenging PU revisions, a distant local propeller flap of healthy tissue outside the zone of injury provides adequate length, thickness, and reliable vascularity while avoiding the scarred operated field.

Urogynecologic Applications​

Vulvar reconstruction — IPAP propeller flap​

The IPAP propeller flap is one of the most extensively studied perforator flaps for vulvar reconstruction:

  • Hashimoto 2014 — largest series: 71 IPAP flaps in 45 patients for vulvar (36), buttock (10), vaginal (9), anal (6), and pelvic-cavity (6) reconstruction. Propeller flaps used in 35 cases, transposition in 3, V-Y in 7. 67/71 flaps survived completely (94.4%); 4 partial necrosis, no total failures.[12]
  • Han 2016 "gull-wing flap" — IPAP-based propeller flap rotated 150–180° internally to reconstruct both labium and external vaginal wall with sufficient volume for 3D vulvovaginal reconstruction after tumor excision.[13]
  • Shin 2022 — compared the perineal perforator propeller flap (PPPF) with a newer perineal perforator switch flap (PPSF) in 16 patients (27 flaps). All flaps survived in both groups, but the PPSF showed significantly better aesthetic scores for symmetry (p = 0.015), labial shape (p = 0.031), and total score (p = 0.017), with shorter operative time and earlier ambulation.[14]

Vulvar reconstruction algorithms — propeller flaps as first-line​

The Toulouse Algorithm (Ricotta et al., 2025) positions perforator flaps — including propeller configurations — as the first-line option for vulvar cancer reconstruction, with musculocutaneous flaps reserved when perforator flaps are not feasible.[15] Multiple perforator sources (IPAP, deep femoral / PAP, medial circumflex femoral, external pudendal) allow versatile flap design based on defect location.

Han 2023 proposed a simplified algorithm based on the vulvo-thigh junctional crease (visual landmark of the inferior pubic ramus): defects medial to the crease → IPAP flaps (66%); defects lateral → profunda artery perforator or transverse upper gracilis (34%). IPAP flaps had significantly fewer wound complications (12.9% vs. 37.5%, p = 0.04).[16]

Huang 2015 reported 27 perforator flaps in 16 patients for vulvar reconstruction (4 IPAP propeller). 100% flap survival, all donor sites primarily closed.[17]

The lotus-petal flap — a propeller variant​

The lotus-petal flap is a gluteal-fold IPA-perforator fasciocutaneous flap that can be configured as a propeller (as well as a transposition or V-Y advancement). The Confalonieri 2017 V-Y-vs-LPF series, the Hellinga 2016 ELAPE series, and the Bodin 2015 supra-fascial-LPF series are covered in depth on the dedicated lotus-petal page; they are noted here only because the LPF in propeller configuration is the most studied IPA-perforator propeller flap used in perineal reconstruction.[18][19][20][21]

Perineal reconstruction after pelvic exenteration​

For large defects after pelvic exenteration, a 1,988-patient SR found that VRAM flaps remain the most commonly used (91% of APR reconstructions) with dehiscence (15–32%) and wound infection (8–16%) as the most common complications. Propeller perforator flaps are increasingly used as alternatives, particularly when the rectus is unavailable or a thinner flap is preferred.[22]

The IPAP propeller was used in 1 of 11 perineal reconstructions after APR by Loreti 2023, alongside 8 rotation flaps and 2 advancement island flaps — all based on the internal pudendal perforator system. All 11 flaps survived without major complications, even in irradiated patients (73%).[23]

Complications and Management​

A literature review of 1,315 propeller flaps in 1,242 patients across all body regions found:[24]

  • Overall complication rate ~22.6%
  • Most frequent: partial flap necrosis and venous congestion
  • Significantly higher complications in patients > 70 years
  • Higher complication rates in the lower limbs (~31.8%) than other regions

Venous congestion — the Achilles heel​

Venous congestion from pedicle torsion is the dominant flap-loss mechanism. Mitigation strategies:[25][26][27][28]

  • Venous supercharging — Chaput 2018 prospectively compared 30 standard propeller flaps vs. 30 venous-supercharged propeller flaps. Venous congestion 36.7% vs. 6.7% (p = 0.010); distal necrosis 30% vs. 3.3% (p = 0.012). Supercharging dramatically reduces vascular complications at the cost of operative time.[26]
  • Local subcutaneous LMWH injection — Pérez 2014: salvage of all 15 venous-congested flaps (6 free, 9 regional) using local subcutaneous heparin, though transfusion requirements were substantial (mean 5 units PRBCs).[27]
  • Optimal flap design (meta-analysis of 402 flaps) — keep flap dimension within 40–80 cm², width > 4.5 cm, and flap-to-defect ratio < ~2:1.[28]

Comparison with Other Flap Techniques​

FeaturePropeller flapRhomboid (Limberg)Bilobed flapV-Y advancementMusculocutaneous (VRAM / gracilis)
VascularizationPerforator-based (axial)Random patternRandom or perforatorSubcutaneous / perforatorNamed vessel (axial)
Arc of rotation90–180°~60°90–100°None (linear)Variable
Tissue bulkThin, adjustableMinimalMinimalModerateSubstantial
Donor-site morbidityMinimal (primary closure)LowLowLowSignificant (abdominal wall, thigh)
Defect-size capacitySmall to largeSmall to moderateSmall to moderateSmall to moderateLarge
Best perineal / genital indicationExtensive penoscrotal, vulvar, perineal defectsSmall posterior vulvar defectsMulti-compartment defectsModerate vulvar / perineal defectsLarge pelvic-floor defects, neovagina
Key advantageFreestyle design; thin, pliable; hidden donor scarSimple geometryTissue relay from lax areaNo rotation neededBulk for dead-space obliteration
Key limitationVenous congestion with rotationSize-limited (random)Complex designLimited reachDonor-site morbidity

When to Reach for the Propeller Flap​

  • Extensive penoscrotal resurfacing where local advancement is insufficient and the gluteal-fold donor matches scrotal skin character (IPAP propeller).[6]
  • Vulvar oncologic reconstruction when a thin, pliable, sensate flap is preferred over musculocutaneous bulk (IPAP propeller, gull-wing, lotus-petal, perineal-perforator switch).[12][13][14][19]
  • Extensive perineal defects after Fournier's, ELAPE, or pelvic exenteration when VRAM is unavailable or undesired (PMTP / vPMT propeller, lotus-petal, IPAP).[7][8][9][20][23]
  • Perineal urethrostomy revision in scarred, multiply-operated fields where a distant local propeller imports healthy tissue outside the injury zone.[11]

Avoid when the recipient bed will require substantial dead-space obliteration (favor VRAM / gracilis), when the donor field is irradiated to the point of perforator unreliability, or when the patient's anatomy or comorbidities make venous congestion likely without supercharging capacity.

Technical Pearls​

  • Map perforators preoperatively with handheld Doppler or MDCT angiography — never plan a propeller flap on intraoperative anatomy alone.[4]
  • Skeletonize conservatively — leave 2–3 cm of perivascular cuff around the perforator to preserve venous drainage during rotation.
  • Rotate in stages, checking Doppler signal between stages — torsional kinking is the most common flap-loss mechanism.
  • Consider supercharging from the outset in high-risk fields (irradiation, large flap, > 70 yr patient, distal lower-limb donor) rather than as salvage.[25][26]
  • Inset under no tension — focal necrosis from tight closure is the most common early complication.
  • Match the donor to the recipient — gluteal fold for scrotum, posteromedial thigh for perineum, perineal perforators for vulva — propeller flaps from the wrong donor site sacrifice the aesthetic advantage of the technique.

See Also​

References​

1. Pignatti M, Ogawa R, Hallock GG, et al. "The 'Tokyo' Consensus on Propeller Flaps." Plast Reconstr Surg. 2011;127(2):716–722. doi:10.1097/PRS.0b013e3181fed6b2

2. D'Arpa S, Toia F, Pirrello R, Moschella F, Cordova A. "Propeller Flaps: A Review of Indications, Technique, and Results." Biomed Res Int. 2014;2014:986829. doi:10.1155/2014/986829

3. Blough JT, Saint-Cyr MH. "Propeller Flaps in Lower Extremity Reconstruction." Clin Plast Surg. 2021;48(2):173–181. doi:10.1016/j.cps.2021.01.002

4. Ono S, Chung KC, Hayashi H, et al. "Application of Multidetector-Row Computed Tomography in Propeller Flap Planning." Plast Reconstr Surg. 2011;127(2):703–711. doi:10.1097/PRS.0b013e318200a99e

5. Ono S, Sebastin SJ, Yazaki N, Hyakusoku H, Chung KC. "Clinical Applications of Perforator-Based Propeller Flaps in Upper Limb Soft Tissue Reconstruction." J Hand Surg Am. 2011;36(5):853–863. doi:10.1016/j.jhsa.2010.12.021

6. Han SE, Kim EJ, Sung HH, Pyon JK. "Aesthetic Penoscrotal Resurfacing: Creating Propeller Flaps From Gluteal Folds." Eur Urol. 2018;73(4):610–617. doi:10.1016/j.eururo.2016.09.033

7. Scaglioni MF, Chen YC, Yang JC. "Posteromedial Thigh (PMT) Propeller Flap for Perineoscrotal Reconstruction: A Case Report." Microsurgery. 2015;35(7):569–572. doi:10.1002/micr.22479

8. Wishart KT, Fritsche E, Scaglioni MF. "Pedicled Vertical Posteromedial Thigh (vPMT) Flap for the Reconstruction of Extensive Perianal-Genital Defects." J Plast Reconstr Aesthet Surg. 2021;74(1):123–129. doi:10.1016/j.bjps.2020.08.001

9. Kwon HJ, Seo JH, Choi JY, et al. "Propeller Posteromedial Thigh Perforator Flaps for Coverage of Extensive Perineal Defects." Microsurgery. 2021;41(4):335–340. doi:10.1002/micr.30726

10. Alammar A, Laing K, Somasundaram J, Wallace DL, Rogers AD. "Flap Reconstruction Following Fournier's Gangrene: A Systematic Review of Techniques and Outcomes." Burns. 2026;52(3):107888. doi:10.1016/j.burns.2026.107888

11. Schulster ML, Dy GW, Vranis NM, et al. "Propeller Flap Perineal Urethrostomy Revision." Urology. 2021;148:302–305. doi:10.1016/j.urology.2020.12.002

12. Hashimoto I, Abe Y, Nakanishi H. "The Internal Pudendal Artery Perforator Flap: Free-Style Pedicle Perforator Flaps for Vulva, Vagina, and Buttock Reconstruction." Plast Reconstr Surg. 2014;133(4):924–933. doi:10.1097/PRS.0000000000000008

13. Han HH, Jun D, Seo BF, et al. "Internal Pudendal Perforator Artery-Based Gull Wing Flap for Vulvovaginal 3D Reconstruction After Tumour Excision: A New Flap." Int Wound J. 2016;13(5):920–926. doi:10.1111/iwj.12410

14. Shin J, Kim SA, Rhie JW. "Perineal Perforator Switch Flap for Three-Dimensional Vulvovaginal Reconstruction." J Plast Reconstr Aesthet Surg. 2022;75(9):3208–3216. doi:10.1016/j.bjps.2022.04.052

15. Ricotta G, Russo SA, Ferron G, Meresse T, Martinez A. "The Toulouse Algorithm: Vulvar Cancer Location-Based Reconstruction." Int J Gynecol Cancer. 2025;35(4):100065. doi:10.1016/j.ijgc.2024.100065

16. Han WY, Kim Y, Han HH. "A Simplified Algorithmic Approach to Vulvar Reconstruction According to Various Types of Vulvar Defects." Ann Plast Surg. 2023;91(2):270–276. doi:10.1097/SAP.0000000000003597

17. Huang JJ, Chang NJ, Chou HH, et al. "Pedicle Perforator Flaps for Vulvar Reconstruction — New Generation of Less Invasive Vulvar Reconstruction With Favorable Results." Gynecol Oncol. 2015;137(1):66–72. doi:10.1016/j.ygyno.2015.01.526

18. Höckel M, Dornhöfer N. "Vulvovaginal Reconstruction for Neoplastic Disease." Lancet Oncol. 2008;9(6):559–568. doi:10.1016/S1470-2045(08)70147-5

19. Confalonieri PL, Gilardi R, Rovati LC, et al. "Comparison of V-Y Advancement Flap Versus Lotus Petal Flap for Plastic Reconstruction After Surgery in Case of Vulvar Malignancies: A Retrospective Single Center Experience." Ann Plast Surg. 2017;79(2):186–191. doi:10.1097/SAP.0000000000001094

20. Hellinga J, Khoe PC, van Etten B, et al. "Fasciocutaneous Lotus Petal Flap for Perineal Wound Reconstruction After Extralevator Abdominoperineal Excision." Ann Surg Oncol. 2016;23(12):4073–4079. doi:10.1245/s10434-016-5332-y

21. Bodin F, Dissaux C, Seigle-Murandi F, et al. "Posterior Perineal Reconstructions With 'Supra-Fascial' Lotus Petal Flaps." J Plast Reconstr Aesthet Surg. 2015;68(1):e7–e12. doi:10.1016/j.bjps.2014.10.028

22. Witte DYS, van Ramshorst GH, Lapid O, Bouman MB, Tuynman JB. "Flap Reconstruction of Perineal Defects After Pelvic Exenteration: A Systematic Description of Four Choices of Surgical Reconstruction Methods." Plast Reconstr Surg. 2021;147(6):1420–1435. doi:10.1097/PRS.0000000000007976

23. Loreti A, Arelli F, Spallone D, Bruno E, Abate O. "The Use of the Internal Pudendal Artery Perforator Flap After Abdominoperineal Reconstruction: A Single Center Study." J Plast Reconstr Aesthet Surg. 2023;84:87–92. doi:10.1016/j.bjps.2023.05.015

24. Sisti A, D'Aniello C, Fortezza L, et al. "Propeller Flaps: A Literature Review." In Vivo. 2016;30(4):351–373.

25. Brunetti B, Salzillo R, De Bernardis R, et al. "Conjoined Thoracodorsal Perforator-Supercharged Dorsal Intercostal Artery Perforator Propeller Flap for Reconstruction of a Complex Upper Back Defect." Microsurgery. 2024;44(1):e31129. doi:10.1002/micr.31129

26. Chaput B, Bertheuil N, Grolleau JL, et al. "Comparison of Propeller Perforator Flap and Venous Supercharged Propeller Perforator Flap in Reconstruction of Lower Limb Soft Tissue Defect: A Prospective Study." Microsurgery. 2018;38(2):177–184. doi:10.1002/micr.30162

27. Pérez M, Sancho J, Ferrer C, García O, Barret JP. "Management of Flap Venous Congestion: The Role of Heparin Local Subcutaneous Injection." J Plast Reconstr Aesthet Surg. 2014;67(1):48–55. doi:10.1016/j.bjps.2013.09.003

28. Huang SC, Yeh YS, Chen WH, et al. "Optimizing Perforator-Based Propeller Flap Design for Distal Leg, Ankle and Hindfoot Reconstruction: A Systematic Review and Meta-Analysis." Plast Reconstr Surg. 2026. doi:10.1097/PRS.0000000000012993