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Medial Thigh Flap Family

The medial thigh is one of the richest pedicled donor regions for perineal, scrotal, vulvar, and vaginal reconstruction. It is supplied by overlapping arterial systems — medial circumflex femoral, profunda femoris perforators, obturator, deep external pudendal, and superficial femoral branches — that together support a family of pedicled flaps spanning fasciocutaneous, septo-fascio-cutaneous, perforator, and myocutaneous designs.[1][2][3]

This page covers the medial-thigh fasciocutaneous and perforator variants. The two medial-thigh flaps with their own dedicated WARWIKI pages — the gracilis myocutaneous flap (the workhorse for deep dead-space obliteration) and the pudendal-thigh / Singapore flap (anatomically distinct, supplied by the internal pudendal system rather than profunda branches) — are referenced here in comparison but covered in depth elsewhere.

Family-page scope

WARWIKI's flap-family pages are deliberately framework-level. Operative detail and outcome series for individual variants live on the dedicated pages (gracilis, Singapore, PMTP propeller). This page is the map of the medial-thigh territory and the deep-dive for variants that do not have their own page (Wang fasciocutaneous, Persichetti septo-fascio-cutaneous, MCFAP, PAP, posteromedial-thigh perforator, adductor).

Vascular Territory of the Medial Thigh​

The medial thigh's reliability comes from overlapping, multi-source perfusion. Every variant in the family is fed by some combination of:

Source vesselTerritoryFlaps it supports
Medial circumflex femoral artery (MCFA) — branch of profunda femorisProximal medial thigh skin and gracilisGracilis (dominant pedicle); MCFA-perforator (MCFAP) flap
Profunda femoris perforators through adductor magnusPosteromedial thigh skinProfunda artery perforator (PAP) flap; posteromedial-thigh perforator (pPMT / vPMT) flap; PMTP propeller
Obturator artery anterior cutaneous branchesUpper medial thighWang fasciocutaneous flap; gracilis minor pedicles; short-gracilis variant
Deep external pudendal artery (DEPA)Upper medial thigh, scrotum, labiaWang fasciocutaneous flap; DEPAP perforator variant
Superficial femoral artery branchesMid-medial thigh fascial plexusWang fasciocutaneous flap; septo-fascio-cutaneous V-Y
Internal pudendal artery (posterior labial / superficial perineal branch)Groin crease, upper medial thighSingapore / pudendal-thigh flap — anatomically distinct from the rest of the family

Because the proximal medial-thigh skin sits at the convergence of five named arterial systems, the region tolerates partial vascular compromise that would doom a single-pedicle flap elsewhere. This redundancy is the basis for the random-pattern Wang flap and for the routine survival of small medial-thigh advancement and V-Y designs even without formal perforator dissection.

Classification of Medial-Thigh Flaps​

VariantTissue compositionPedicleBest forDedicated page
Gracilis myocutaneousMuscle ± skinMCFA dominant + minor obturatorDeep dead-space obliteration; RUF / RVF interposition; perineal bulkYes
Short gracilis myocutaneousProximal gracilis + skinTerminal obturator branchesVulvovaginal reconstruction; less bulk than standard gracilis[4](covered here)
Wang medial-thigh fasciocutaneousSkin + fasciaSuprafascial plexus from SFA / obturator / DEPA branchesVaginal replacement; vulvar / groin / ischial coverage; non-bulky perineal resurfacing[5](covered here)
Persichetti septo-fascio-cutaneous V-Y islandSkin + fascia + intermuscular septumAnterior, medial, and posterior fascial plexusesVulvoperineal V-Y advancement; sensate; simple execution[6](covered here)
MCFA perforator (MCFAP)Skin + subcutaneous tissueMCFA perforatorsPenoscrotal coverage; vulvar reconstruction; scar concealed in gluteal crease[7][8](covered here)
Profunda artery perforator (PAP)Skin + subcutaneous tissueProfunda perforatorsPerineal coverage; vaginal reconstruction; combined pelvic-floor + neovagina[9][10][11](covered here)
Posteromedial-thigh perforator (pPMT / vPMT)Skin + subcutaneous tissueProfunda perforator through adductor magnusExtensive perianal-genital defects; propeller or V-Y design; up to 29 × 8 cm[12][13]Partial — see PMTP propeller
Adductor flap (Angrigiani)FasciocutaneousProximal musculocutaneous perforator of adductor magnus (first medial branch of profunda)Largest medial-thigh skin territory (up to 30 × 23 cm); pedicle 0.8–1.1 mm[3](covered here)
Pudendal-thigh / SingaporeFasciocutaneousPosterior labial branch of internal pudendalSensate neovagina; posterior vaginal reconstruction; obstetric-fistula vaginal stenosisYes

Wang Medial-Thigh Fasciocutaneous Flap​

Wang and colleagues (1987) demonstrated that a 9 × 20 cm fasciocutaneous flap could be reliably elevated from the medial thigh without using gracilis as the vascular carrier, supported by a communicating suprafascial vascular plexus fed by 3–4 nonaxial vessels entering within 5 cm of the perineum.[5] Across 15 flaps in 13 patients, the Wang flap reliably resurfaced vaginal-replacement, post-vulvectomy, groin, and ischial defects.

Advantages over the gracilis myocutaneous flap

  • Less bulky — no muscle component, better tissue match for thin perineal and vulvar skin
  • Potentially sensate when cutaneous innervation is preserved
  • No functional sacrifice of gracilis — the muscle remains available for later staged reconstruction
  • Can be combined with independent gracilis muscle elevation when both bulk (muscle) and skin (Wang) are needed

Design and harvest

  1. Outline the flap parallel to the natural creases of the upper medial thigh, base within 5 cm of the perineum
  2. Incise skin and subcutaneous tissue down to the adductor fascia
  3. Elevate in the fasciocutaneous plane, including the deep fascia to capture the suprafascial plexus
  4. Preserve perforators as they enter the undersurface
  5. Mobilize medially toward the defect; tunnel if interposition is required
  6. Donor site closes primarily for widths ≤ 8–10 cm; wider flaps need STSG

Persichetti Septo-Fascio-Cutaneous V-Y Island Flap​

Persichetti and colleagues (2003) described a medial-thigh septo-fascio-cutaneous island flap raised as a V-Y advancement on the anterior, medial, and posterior fascial plexuses of the thigh.[6] The flap is sensate (preserving cutaneous branches of the obturator and femoral nerves), simple to execute, and especially well-suited for vulvoperineal defects after oncologic vulvectomy.

Key technical points:

  • The "V" is outlined on the medial thigh; the wider end abuts the defect
  • Dissection respects the intermuscular septum between adductor longus and gracilis to preserve the deep fascial plexus
  • Closure as a "Y" advances the flap medially into the defect without rotation
  • Avoids the bulk and donor-site morbidity of myocutaneous alternatives for moderate vulvar defects

This is the medial-thigh analog of the broader V-Y advancement family used elsewhere in vulvoperineal reconstruction.

MCFA Perforator (MCFAP) Flap​

The medial circumflex femoral artery perforator (MCFAP) flap — described by Karsidag and colleagues (2011) for perineoscrotal coverage and used by Huang and colleagues (2015) for vulvar reconstruction — provides a thin, pliable perforator flap from the upper medial thigh with the donor scar concealed in the gluteal crease.[7][8]

Advantages

  • Non-bulky — protects testes after Fournier's debridement without raising scrotal temperature, a recognized concern with myocutaneous alternatives
  • Donor scar in the gluteal crease — superior cosmesis to gracilis or Wang donor sites
  • No muscle sacrifice
  • Pliable — adapts well to scrotal contour and to vulvar three-dimensional reconstruction

In Huang's series of 27 perforator flaps for vulvar reconstruction (8 MCFAP, plus PAP and freestyle perforators), flap survival was 100% with primary donor closure in all cases and superior cosmesis compared with traditional myocutaneous options.[8]

Profunda Artery Perforator (PAP) Flap​

The profunda artery perforator (PAP) flap is increasingly used for perineal and vaginal reconstruction, offering thin pliable tissue from the posteromedial thigh with low donor-site morbidity.

Outcome series

  • Arquette and colleagues (2022): 15 patients underwent PAP flap reconstruction of the perineum; stable soft-tissue coverage in 100%; minor wound dehiscence in 53.3%; low donor-site morbidity overall.[9]
  • Lavie and colleagues (2024): 10 patients with vertical PAP (vPAP) flaps for perineal reconstruction; no complete flap loss; perineal dehiscence in 50% (expected in irradiated fields); mean follow-up 26.1 months.[10]
  • Sharp and colleagues (2021): combined bilateral pedicled gracilis + PAP flaps in 6 patients after pelvic exenteration with neovagina and pelvic-floor reconstruction; all flaps survived.[11] This combination exploits gracilis bulk for dead-space + PAP skin for vaginal lining, illustrating the family's modular design.

Posteromedial-Thigh Perforator (pPMT / vPMT) Flap​

The posteromedial-thigh perforator flap — designed as a propeller (pPMT) or vertical V-Y (vPMT) — is based on profunda femoris perforators piercing adductor magnus.[12][13]

  • Scaglioni and colleagues (2018): 15 pPMT flaps including 3 for perineal/genital defects; 100% flap survival without complications; flap sizes up to 29 × 8 cm.[12]
  • Wishart and colleagues (2021): 21 vPMT flaps in 12 patients for perianal/genital defects (including 5 vulvar); 100% survival without major complications.[13]

The propeller variant rotates up to 180° on an isolated perforator and is described in detail on the PMTP propeller flap page.

Adductor Flap (Angrigiani)​

Angrigiani and colleagues (2001) described the adductor flap, which transfers posterior and medial thigh skin on the first medial branch of the profunda femoris — a proximal musculocutaneous perforator of adductor magnus.[3]

Distinguishing features:

  • Largest medial-thigh skin territory — up to 30 × 23 cm
  • Pedicle diameter 0.8–1.1 mm — usable as a free flap when pedicled reach is insufficient
  • Particularly useful for extensive vulvar / perineal defects where Wang or PAP territory is inadequate
  • Donor closure typically requires STSG given the territory raised

Short Gracilis Myocutaneous Flap​

Soper and colleagues (1989) described the short gracilis myocutaneous flap based on terminal branches of the obturator artery (with the dominant MCFA pedicle deliberately sacrificed) for vulvovaginal reconstruction after pelvic exenteration.[4] In 11 patients, bilateral short gracilis flaps achieved excellent vaginal caliber and depth in 91%.

Why "short" — the proximal gracilis muscle and overlying skin are harvested without the distal muscle belly, yielding a less bulky flap that is better suited to vaginal-canal reconstruction than the standard full-length gracilis. Limitation: should not be used in patients with extensive groin irradiation, which compromises the obturator-branch perfusion the flap depends on.

For full-length gracilis applications (RUF / RVF interposition, deep perineal dead-space obliteration, perineal resurfacing after APR / pelvic exenteration), see the gracilis flap page.

Pedicled Perforator Strategy for Vulvoperineal Reconstruction​

Across the perforator variants, the modern pedicled-perforator strategy for vulvoperineal reconstruction has consistently demonstrated:

  • Flap survival approaching 100% in dedicated series[8][12][13]
  • Low donor-site morbidity — typically primary closure, gluteal-crease scar concealment for MCFAP
  • Superior cosmesis versus traditional myocutaneous flaps
  • Modular combinability — PAP for skin lining + gracilis for muscular bulk in pelvic exenteration[11]

This represents a shift from myocutaneous-as-default toward perforator-as-default for moderate vulvoperineal defects, reserving myocutaneous flaps (gracilis, VRAM, vastus lateralis) for cases where muscular bulk for dead-space obliteration is the operative requirement.

Donor-Site Considerations​

The medial thigh tolerates flap harvest well. Across the family:

  • Primary donor closure is feasible for fasciocutaneous and perforator widths up to ~8–10 cm
  • Wider designs (Wang ≥ 12 cm, adductor) require STSG of the donor thigh
  • Thigh numbness in the saphenous / obturator distribution is common but usually well-tolerated
  • Functional impairment is minimal — gracilis is expendable; fasciocutaneous and perforator harvests preserve all motor function
  • No hernia risk — unlike VRAM
  • Risk factors for donor and recipient complications across perineal-flap series include obesity, active smoking, and neoadjuvant chemoradiation.[14][15]

When to Choose Which Variant​

Operative requirementPreferred medial-thigh variant
Deep dead-space obliteration (RUF, RVF, post-APR pelvis)Gracilis (full-length, myocutaneous)
Sensate posterior vaginal liningSingapore / pudendal-thigh
Non-bulky scrotal / penoscrotal coverage after Fournier'sMCFAP perforator flap
Vulvar oncologic resurfacing — moderate defectPersichetti V-Y; MCFAP; PAP
Vulvar oncologic resurfacing — extensive defectAdductor flap; combined gracilis + PAP
Extensive perineal / perineoscrotal defect requiring 180° rotationPMTP propeller; pPMT
Combined neovagina + pelvic-floor reconstruction after exenterationBilateral gracilis + PAP (Sharp configuration)[11]; bilateral short gracilis[4]
Vaginal stenosis with obstetric fistula in low-resource settingSingapore / pudendal-thigh — minimal supplies, reliable[16]

Limitations Common to the Family​

  • Obesity — heavily adipose thighs make every variant bulkier than ideal for thin perineal tissue
  • Prior vascular or inguinal surgery — may have disrupted key perforators, particularly DEPA and MCFA branches
  • Hair-bearing skin — undesirable adjacent to visible perineal or vulvar skin; consider laser depilation for neovaginal applications
  • Groin irradiation — compromises obturator-branch and DEPA perfusion; favor profunda-perforator–based variants (PAP, pPMT) over short gracilis or DEPAP designs in this setting

See Also​

References​

1. 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

2. Wong DS. Reconstruction of the perineum. Ann Plast Surg. 2014;73 Suppl 1:S74–81. doi:10.1097/SAP.0000000000000237

3. Angrigiani C, Grilli D, Thorne CH. The adductor flap: a new method for transferring posterior and medial thigh skin. Plast Reconstr Surg. 2001;107(7):1725–31. doi:10.1097/00006534-200106000-00013

4. Soper JT, Larson D, Hunter VJ, Berchuck A, Clarke-Pearson DL. Short gracilis myocutaneous flaps for vulvovaginal reconstruction after radical pelvic surgery. Obstet Gynecol. 1989;74(5):823–7.

5. Wang TN, Whetzel T, Mathes SJ, Vasconez LO. A fasciocutaneous flap for vaginal and perineal reconstruction. Plast Reconstr Surg. 1987;80(1):95–103. doi:10.1097/00006534-198707000-00015

6. Persichetti P, Simone P, Berloco M, et al. Vulvo-perineal reconstruction: medial thigh septo-fascio-cutaneous island flap. Ann Plast Surg. 2003;50(1):85–9. doi:10.1097/00000637-200301000-00015

7. Karsidag S, Akcal A, Sirvan SS, Guney S, Ugurlu K. Perineoscrotal reconstruction using a medial circumflex femoral artery perforator flap. Microsurgery. 2011;31(2):116–21. doi:10.1002/micr.20839

8. 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

9. Arquette C, Wan D, Momeni A. Perineal reconstruction with the profunda artery perforator flap. Ann Plast Surg. 2022;88(4):434–9. doi:10.1097/SAP.0000000000002986

10. Lavie JL, Guidry RF, Palines PA, et al. The vertical profunda artery perforator flap for perineal reconstruction. Ann Plast Surg. 2024;93(2):239–45. doi:10.1097/SAP.0000000000004021

11. Sharp O, Kapur S, Shaikh I, Rosich-Medina A, Haywood R. The combined use of pedicled profunda artery perforator and bilateral gracilis flaps for pelvic reconstruction: a cohort study. J Plast Reconstr Aesthet Surg. 2021;74(10):2654–63. doi:10.1016/j.bjps.2021.03.038

12. Scaglioni MF, Franchi A, Giovanoli P. Pedicled posteromedial thigh (pPMT) perforator flap and its application in loco-regional soft tissue reconstructions. J Plast Reconstr Aesthet Surg. 2018;71(2):217–23. doi:10.1016/j.bjps.2017.10.005

13. 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):123–9. doi:10.1016/j.bjps.2020.08.001

14. Singh M, Kinsley S, Huang A, et al. Gracilis flap reconstruction of the perineum: an outcomes analysis. J Am Coll Surg. 2016;223(4):602–10. doi:10.1016/j.jamcollsurg.2016.06.383

15. Eseme EA, Scampa M, Viscardi JA, et al. Surgical outcomes of VRAM vs. gracilis flaps in vulvo-perineal reconstruction following oncologic resection: a proportional meta-analysis. Cancers. 2022;14(17):4300. doi:10.3390/cancers14174300

16. Pope RJ, Brown RH, Chipungu E, Hollier LH, Wilkinson JP. The use of Singapore flaps for vaginal reconstruction in women with vaginal stenosis with obstetric fistula: a surgical technique. BJOG. 2018;125(6):751–6. doi:10.1111/1471-0528.14952