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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]

Two medial-thigh flaps have their own dedicated WARWIKI pages: the gracilis myocutaneous flap (used for deep dead-space obliteration) and the pudendal-thigh / Singapore flap (anatomically distinct, supplied by the internal pudendal system rather than profunda branches).

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).

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) — usually a branch of profunda femoris, but sometimes arising directly from the common femoral artery[20]Proximal medial thigh skin and gracilisGracilis (when supplied by MCFA); MCFA-perforator (MCFAP) flap[7]
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

Flap survival depends on its preserved pedicle, design and donor or recipient bed viability, even where source territories overlap. Wang's fasciocutaneous design relies on its described proximal communicating plexus, while an isolated perforator flap requires its own vascular assessment.[5]

Classification of Medial-Thigh Flaps​

VariantTissue compositionPedicleBest forDedicated page
Gracilis myocutaneousMuscle ± skinDominant pedicle with variable parent vessel (profunda or MCFA in one cadaveric series); distal superficial-femoral pedicles[21]Deep 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 + subcutaneous tissue + underlying muscular fascia; septal perforators sparedAnterior, medial, and posterior fascial plexusesVulvoperineal V-Y advancement; sensate; simple execution[6](covered here)
MCFA/gracilis perforator (MCFAP)Skin + subcutaneous tissueGracilis-pedicle perforator, parent vessel variableSelected penoscrotal coverage and vulvar resurfacing; donor scar varies by design[7][8]Yes; details on dedicated page
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 or medial circumflex femoral perforator (12/15 and 3/15 pPMT flaps, respectively)Extensive perianal-genital defects; propeller or V-Y design; up to 29 × 8 cm across a mixed-site pPMT series[12][13]Partial; see PMTP propeller
Adductor flap (Angrigiani)FasciocutaneousProximal musculocutaneous perforator of adductor magnus (first medial branch of profunda)Skin flaps as large as 30 × 23 cm transferred; cutaneous perforator 0.8–1.1 mm, artery about 2 mm at profunda origin[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, with no muscle component and a 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 closure depends on flap width and thigh laxity; wider flaps may need a skin graft

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] In the authors' series of 26 vulvoperineal reconstructions after vulvar cancer resection, the nerve supply gave acceptable sensation at the reconstructed area, and the technique was described as simple to execute. It is suited to vulvoperineal defects after superficial soft-tissue resections.

Technical points:

  • The "V" is outlined on the medial thigh; the wider end abuts the defect
  • The flap incorporates the underlying muscular fascia and spares the intermuscular septal perforators
  • 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 MCFA (gracilis-perforator) flap has a dedicated anatomy and technique page. Karsidag described perineoscrotal coverage, and Huang's mixed perforator cohort included eight MCFAP flaps.[7][8] Skin territory and scar vary with the chosen design.[7][8]

Advantages

  • Potentially thin coverage. Useful for selected scrotal defects
  • Concealable medial-thigh or groin donor scar. Position and cosmetic tradeoff depend on design; no comparative cosmetic ranking established
  • No muscle sacrifice
  • Pliable. Adapts well to scrotal contour and to vulvar three-dimensional reconstruction

In Huang's mixed 27-flap series in 16 patients, eight were MCFAP; all flaps survived, three patients needed small-wound debridement and closure, and donor sites were closed primarily. Across the mixed cohort, one patient developed temporary peroneal nerve palsy and one underwent flap debulking at three months; neither event was assigned to the MCFAP subset.[8]

Profunda Artery Perforator (PAP) Flap​

The profunda artery perforator (PAP) flap can supply thin, pliable posteromedial-thigh tissue for perineal and vaginal reconstruction. Donor outcomes vary: Arquette et al. reported donor-site dehiscence in 3/15 patients, whereas Lavie et al. reported none in 10 vPAP patients.[9][10]

Outcome series

  • Arquette and colleagues (2022): 15 patients underwent PAP flap reconstruction of the perineum; stable soft-tissue coverage in all; 8/15 (53.3%) had any complication, not 53.3% minor wound dehiscence. Donor and recipient dehiscence occurred in three patients each (two major and eight minor events overall).[9]
  • Lavie and colleagues (2024): 10 patients with vertical PAP (vPAP) flaps for perineal reconstruction; no complete flap loss, but 2 patients (20%) returned to the operating room for venous congestion, 2 (20%) had partial flap failure, 50% had perineal dehiscence, 30% had an abscess requiring percutaneous drainage, 20% had infection requiring antibiotics, and 20% developed fistulas requiring excision. Eight of ten patients had received radiation; mean follow-up was 26.1 months.[10]
  • Sharp and colleagues (2021): 18 pedicled flaps (bilateral gracilis plus PAP) in 6 patients, 4 after extended abdominoperineal resection and 2 after total pelvic exenteration. One patient had 1 cm of PAP flap loss after postoperative bleeding and embolization; all other flaps survived completely. Four patients developed partial perineal wound dehiscence, and median healing time was 4 months (median follow-up 10 months).[11] The combination uses gracilis bulk for the pelvic floor and dead space and PAP skin for vaginal lining.

Design, reach, and inset. Marking the flap while the patient is standing, before lithotomy positioning shifts the landmarks, is described as improving accuracy. A width near 8 cm, checked against pinch testing, helps keep the donor site closable primarily. The skin island is widest medially, where the dominant perforator enters the fascia (often within about 8 cm below the gluteal crease), and tapers laterally.[17] Handheld Doppler or preoperative imaging can help localize the perforator before incision.[18][19] Because the dominant perforator commonly courses away from the perineal defect, choosing a perforator close to the target improves propeller reach; if advancement or propeller rotation cannot cover the defect, dissection can continue proximally to the profunda source vessel for a pedicled PAP with greater arc of rotation. A contralateral PAP, IGAP, gracilis or V-Y flap can supplement coverage when a single PAP is insufficient. For a deep pelvic component, partially de-epithelializing the distal third or half of the flap and anchoring it to the pelvic wall with absorbable sutures can add internal fill and support.[17]

Posteromedial-Thigh Perforator (pPMT / vPMT) Flap​

Posteromedial-thigh perforator flaps can be advanced as V-Y islands, interpolated, or pivoted as propellers; the pPMT and vPMT labels do not specify transfer motion. Their profunda or medial circumflex femoral perforators may pass through adductor magnus or follow a septocutaneous course. In Scaglioni’s 15 pPMT flaps, 12 pedicles arose from profunda femoris and 3 from the medial circumflex femoral artery; Wishart transferred 18 of 21 vPMT flaps as propellers and 3 by V-Y advancement.[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 can rotate on an isolated perforator and is described in detail on the PMTP propeller flap page; allowable rotation depends on the actual perforator and venous outflow.

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:

  • Large skin territory. Flaps as large as 30 × 23 cm were transferred (25 patients: 23 complete survival, 1 partial, 1 loss; 14 pedicled and 11 free)
  • Cutaneous perforator diameter 0.8–1.1 mm in cadavers; proximal dissection through adductor magnus yielded an approximately 8-cm pedicle with an artery approximately 2 mm at the profunda origin for free transfer[3]
  • This proximal profunda perforator design recruits a large posteromedial-thigh skin paddle and was later described as a precursor of the PAP flap.[3][25]
  • With a territory this large, donor closure may need a skin graft

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 gracilis pedicle deliberately sacrificed) for vulvovaginal reconstruction after radical pelvic surgery.[4] Among 11 patients, 21 flaps were used (bilateral in ten); 10/11 had excellent vaginal caliber and depth at 1–22 months, but one patient with prior vulvar/groin irradiation and chemotherapy had bilateral necrosis, and five had lesser necrosis or suture-line separation.[4]

Why "short." The flap depends on terminal obturator branches, and the authors present it as an alternative to the bulkier standard gracilis flap for vulvovaginal reconstruction. The authors advise against use after extensive groin irradiation; their one bilateral necrosis occurred after vulvar and groin irradiation with chemotherapy. In a later 46-patient retrospective comparison, major flap loss occurred in 4/24 short-flap recipients versus 3/22 long-flap recipients; it occurred in 4/8 patients after exenteration with rectosigmoid anastomosis versus 3/38 after other procedures.[26]

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​

Selected small perforator-flap series report:

  • High survival in selected reports, including Huang's mixed 27 flaps[8][12][13]
  • Donor-site outcomes. Typically primary closure, a concealable medial-groin or gluteal-crease scar for MCFAP, depending on design
  • Potential cosmetic advantages in selected thin resurfacing defects, without a matched comparative outcome established here
  • Modular combinability. PAP for skin lining and gracilis for muscular bulk in pelvic exenteration[11]

Selection between perforator and myocutaneous designs depends on surface replacement, dead space, prior treatment, perforator quality and recipient vessels. A 2024 meta-analysis of 49 studies of female vulvoperineal reconstruction after oncologic resection (1,840 patients) did not detect a statistically significant difference in overall short-term complication rates between perforator (n = 276) and non-perforator (n = 1,564) reconstructions; quality-of-life data were scarce.[22] Muscle-bearing gracilis, VRAM or vastus lateralis remains relevant when vascularized bulk is needed. For neovaginal reconstruction after vaginal-cancer surgery, the 2023 ESTRO/ESGO/SIOPe guideline recommends discussing age, performance status, sexual activity, and patient wishes and arranging postoperative support to keep the neovaginal cavity open with dilators or intercourse (both recommendations: level IV evidence, grade A).[27]

Donor-Site Considerations​

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

  • Primary donor closure may be feasible for appropriately sized fasciocutaneous or perforator flaps, depending on tissue laxity and donor-site tension; no universal 8–10-cm cutoff is established here
  • Wider designs may need a graft or another donor-closure strategy
  • Sensory change and donor-site symptoms need technique- and patient-specific counseling
  • Motor function depends on tissue harvested and nerves preserved; muscle-bearing gracilis is distinct from muscle-sparing perforator harvest
  • No abdominal-wall donor defect. Medial-thigh harvest avoids the abdominal donor-site hernia mechanism associated with VRAM.[15]
  • In Singh's 40-patient gracilis series, obesity and active smoking were associated with minor complications and neoadjuvant chemoradiation with any complication.[14] In a proportional meta-analysis of mostly noncomparative, heterogeneous cohorts after oncologic vulvoperineal resection, pooled overall donor-site complication proportions were 57.6% for VRAM and 16.0% for gracilis; pooled overall recipient-site complications did not differ significantly (33.9% versus 26.8%), although recipient-site dehiscence was higher in gracilis cohorts (27.6% versus 15.8%).[15]

When to Choose Which Variant​

Operative requirementPreferred medial-thigh variant
Deep dead-space obliteration (RUF, RVF, post-APR pelvis)Gracilis muscle (full-length) for fistula interposition; a skin paddle or separate skin-bearing flap may also be needed for surface coverage or vaginal lining.[11][23][24]
Sensate posterior vaginal liningSingapore / pudendal-thigh
Selected non-bulky scrotal / penoscrotal coverage after Fournier'sConsider MCFAP, groin or other local flaps by pedicle and defect; no comparative winner established
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 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. Assess donor and recipient fields and perfusion; a profunda-based alternative may be considered outside compromised territory, but no universal flap hierarchy is established

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

17. Kosutic D. Profunda Artery Perforator Flap for Perineal Reconstruction. In: Kosutic D, ed. Perineal Reconstruction: Principles and Practice. Springer; 2023:101–110. doi:10.1007/978-3-030-97691-0_10

18. Haddock NT, Greaney P, Otterburn D, Levine S, Allen RJ. Predicting perforator location on preoperative imaging for the profunda artery perforator flap. Microsurgery. 2012;32(7):507–11. doi:10.1002/micr.21980

19. Kehrer A, Hsu MY, Chen YT, Sachanandani NS, Tsao CK. Simplified profunda artery perforator (PAP) flap design using power Doppler ultrasonography (PDU): a prospective study. Microsurgery. 2018;38(5):512–23. doi:10.1002/micr.30266

20. Tomaszewski KA, Henry BM, Vikse J, et al. "The origin of the medial circumflex femoral artery: a meta-analysis and proposal of a new classification system." PeerJ. 2016;4:e1726. doi:10.7717/peerj.1726

21. Magden O, Tayfur V, Edizer M, Atabey A. "Anatomy of gracilis muscle flap." J Craniofac Surg. 2010;21(6):1948–1950. doi:10.1097/SCS.0b013e3181f4ed81

22. Wendelspiess S, Kouba L, Stoffel J, et al. "Perforator versus non-perforator flap-based vulvoperineal reconstruction: a systematic review and meta-analysis." Cancers (Basel). 2024;16(12):2213. doi:10.3390/cancers16122213

23. Vanni AJ, Buckley JC, Zinman LN. "Management of surgical and radiation induced rectourethral fistulas with an interposition muscle flap and selective buccal mucosal onlay graft." J Urol. 2010;184(6):2400–2404. doi:10.1016/j.juro.2010.08.004

24. Maspero M, Otero Piñeiro A, Steele SR, Hull TL. "Gracilis muscle interposition for the treatment of rectovaginal fistula: a systematic review and pooled analysis." Dis Colon Rectum. 2023;66(5):631–645. doi:10.1097/DCR.0000000000002739

25. Lu J, Zhang KK, Graziano FD, Nelson JA, Allen RJ Jr. "Alternative donor sites in autologous breast reconstruction: a clinical practice review of the PAP flap." Gland Surg. 2023;12(4):516–526. doi:10.21037/gs-22-603

26. Soper JT, Rodriguez G, Berchuck A, Clarke-Pearson DL. "Long and short gracilis myocutaneous flaps for vulvovaginal reconstruction after radical pelvic surgery: comparison of flap-specific complications." Gynecol Oncol. 1995;56(2):271–275. doi:10.1006/gyno.1995.1045

27. Nout RA, Calaminus G, Planchamp F, et al. "ESTRO/ESGO/SIOPe guidelines for the management of patients with vaginal cancer." Radiother Oncol. 2023;186:109662. doi:10.1016/j.radonc.2023.109662