Excision With Flap Reconstruction for Genital Lymphedema
Excision with flap reconstruction is the second most common surgical approach for penoscrotal lymphedema (39.1% in the Guiotto SR), but it carries the highest overall complication rate (54.2%) — vs 10% for excision + primary closure / graft and 9% for microsurgical LVA. Despite this, flap reconstruction is indispensable when primary closure is not feasible and grafting alone is inadequate — particularly with exposed vital structures or a desire for functional lymphatic restoration.[1][2][3]
For the simpler primary-closure variant see Debulking Scrotoplasty; for the radical excisional approach see Modified Charles Procedure; for the clinical condition see Giant Penoscrotal Lymphedema. For the broader scrotal-flap inventory see Scrotal Flap Reconstruction.
Indications
- Extensive scrotal skin loss (> 50%) precluding primary closure.[2][4]
- Exposed testes / spermatic cord / urethra requiring vascularized coverage rather than a poorly vascularized graft bed.[3]
- Failed prior primary closure or STSG (e.g., 2/4 pediatric local-flap failures requiring conversion to grafting).[5]
- Need for functional lymphatic restoration (lymphatic-flap approaches).[6][7]
- Complex 3-D defects involving perineum + penis + scrotum simultaneously.[8][9]
- Desire for superior cosmesis / sensation / thermoregulation.[8][10]
Flap Categories
1. Local and perineal flaps
| Flap | Detail |
|---|---|
| Anterior + posterior perineal flaps (Halperin) | Posteriorly based perineal flaps may preserve perirectal lymphatics that provide collateral drainage — theoretical advantage over thigh flaps; both patients satisfied with QoL improvement.[2] |
| Suprapubic U-shaped + posterior scrotal (Yormuk) | Denuded penis transposed through a buttonhole in the anterior flap; testicles in pouches between anterior and posterior flaps; acceptable testicular function and sexual activity.[11] |
| Bilateral pedicled scrotal flaps (for penile coverage) | Anterior-scrotal-artery-based; alternative to STSG for penile shaft when scrotal skin is healthy; Mendel n = 22 — dehiscence 31.8%, infection 13.6%, hematoma 4.6%, late retraction 27.3%, testicular ascension 22.7%; median global satisfaction 8/10; erection hardness preserved.[12][13] |
2. Regional pedicled flaps (thigh-based)
| Flap | Detail |
|---|---|
| Pudendal-thigh (Singapore) | Posterior labial / scrotal artery (internal pudendal); Mopuri n = 5 robust, reliable, resilient neoscrotum with natural appearance and protective sensation; Karaçal n = 10 satisfactory results with sensibility.[10][14] |
| Anterolateral thigh (ALT) | LCFA descending branch; most versatile pedicled option. Yu n = 7 — 100% flap survival in perineoscrotal defects (3 minor dehiscences from fecal contamination); Lin n = 10 penoscrotal — all satisfactory; Spyropoulou n = 11 — stable closure, no donor complications; Guiotto composite ALT + vascularized fascia lata — first reported PSL reconstruction. Limitations — thicker than scrotal skin; alters thermoregulation; potential infertility.[2][9][15][16][17] |
| Gracilis myocutaneous / myofasciocutaneous | MCFA; bilateral pedicled options. Kayikçioğlu short gracilis uses muscle-origin vascularity for greater mobility / no dog ears / favorable atrophy; Hsu n = 8 — unilateral advancement, 1 hematoma + 1 late abscess; Daigeler bilateral gracilis + STSG overlay — satisfying outcomes. Bulky; conventional skin paddle historically unreliable.[18][19][20] |
| MCFAP (Coskunfirat) | Perforator-based — preserves gracilis muscle; n = 7 — stable coverage, acceptable contour, direct donor closure in a single procedure.[21] |
| Tensor fascia lata (TFL) musculocutaneous | Chitale n = 12 (tubercular + filarial) — TFL absorbs lymph, reducing postoperative lymphorrhea; can act as a lymphatic bridge between lymphedematous and normal-drainage areas. Bulky; limited reach.[22] |
| IPAP propeller / gluteal-fold (Han) | Internal pudendal artery perforator; ≥ 90° internal rotation, long axis in the gluteal fold; n = 10 — mean flap 6.7 × 11.7 cm; 1 partial distal necrosis (healed spontaneously); natural-looking scrotal pouch, hidden donor scar, preserved sexual activity.[8] |
3. Lymphatic flaps (next-generation)
| Procedure | Detail |
|---|---|
| SCIP lymphatic flap transfer (Abdelfattah 2023) | n = 26 advanced scrotal / penoscrotal lymphedema; SCIP flap with preserved functional lymphatics; 100% flap survival; cellulitis dramatically reduced (p < 0.001).[6] |
| 3R — Radical Reduction + Reconstruction (Yamamoto 2022) | n = 7 elephantiasis; pedicled SCIP-LFT for scrotum + SCIP pure-skin-perforator for penis; mean resected 1,511 g; 0% complications, 0% recurrence at 22.7 mo; GLS 6.7 → 0.3; no postoperative compression required.[7] |
Lymphatic flaps deliver soft-tissue coverage and functional lymphatic drainage — moving genital-lymphedema reconstruction from palliative debulking toward potentially curative treatment.
Comparative Outcomes
| Flap | Complication rate | Flap loss | Key advantage | Key limitation |
|---|---|---|---|---|
| Local / perineal | Low (small series) | Rare | Preserves perirectal lymphatics; thin, pliable | Limited tissue for large defects[2] |
| Pudendal thigh | Low | Rare | Sensate; natural appearance; primary donor closure | Limited arc of rotation[10][14] |
| ALT | Low (minor dehiscence common) | 0% in reported series | Versatile; large paddle; long pedicle | Thick; alters thermoregulation; potential infertility[15][16][17] |
| Gracilis | Moderate | Low | Muscle bulk for dead space; reliable pedicle | Bulky; unreliable skin paddle (conventional)[18][19][20] |
| MCFAP | Low | 0% (n = 7) | Thin; muscle-sparing; single stage | Limited experience[21] |
| TFL | Low | Low | May absorb lymph; lymphatic bridge potential | Bulky; limited scrotal reach[22] |
| IPAP propeller | Very low | 0% (n = 10) | Natural appearance; hidden gluteal-fold scar; sensate | Limited experience; small flap size[8] |
| SCIP lymphatic flap | Very low | 0% (combined n ≥ 33) | Restores lymphatic drainage; curative potential; no compression | Microsurgical expertise required[6][7] |
| Overall flap-reconstruction group | 54.2% (Guiotto SR) | 1.6% (Fournier's data) | — | Highest complication rate among GL approaches; selection bias[1][3] |
Why the High Complication Rate?
- Selection bias — flap reconstruction is reserved for the most severe / largest / most comorbid cases.[1]
- Operative complexity — longer OR, more dissection, more blood loss.
- Wound environment — perineum is contaminated; fecal / urinary soiling drives dehiscence and infection.[15]
- Flap-specific issues — thigh-flap bulk mismatch; muscle atrophy; donor-site morbidity.[2][19]
- Thermoregulation disruption — thigh-based flaps lack the dartos's cooling function, potentially impairing spermatogenesis.[2]
Flap Selection Algorithm
- Small-moderate defect with sufficient healthy scrotal skin → Primary closure (debulking scrotoplasty).
- Moderate defect without sufficient scrotal skin but adequate bed → STSG (modified Charles).
- Large defect with exposed testes / vital structures → regional pedicled flap (pudendal-thigh or ALT preferred).[8][10][15]
- Need debulking + lymphatic restoration → SCIP-lymphatic flap (3R / CHASCIP) — emerging standard.[6][7]
- Massive perineal involvement → combined approaches (bilateral gracilis + STSG, ALT + medial thigh).[9][19][20]
The trajectory is clearly toward combined excisional + physiologic approaches using lymphatic flaps — addressing the fundamental limitation of all traditional flap reconstructions (failure to restore lymphatic drainage). SCIP-LFT has demonstrated 0% recurrence across multiple series.[6][7]
See Also
- Debulking Scrotoplasty
- Modified Charles Procedure
- Scrotal Flap Reconstruction (consolidated overview)
- Giant Penoscrotal Lymphedema
- Genital Lymphedema
- Foundations SCIP flap
References
1. Guiotto M, Bramhall RJ, Campisi C, Raffoul W, di Summa PG. A systematic review of outcomes after genital lymphedema surgery. Ann Plast Surg. 2019;83(6):e85–e91. doi:10.1097/SAP.0000000000001875
2. Halperin TJ, Slavin SA, Olumi AF, Borud LJ. Surgical management of scrotal lymphedema using local flaps. Ann Plast Surg. 2007;59(1):67–72. doi:10.1097/01.sap.0000258448.17867.20
3. Alammar A, Laing K, Somasundaram J, Wallace DL, Rogers AD. Flap reconstruction following Fournier's gangrene. Burns. 2026;52(3):107888. doi:10.1016/j.burns.2026.107888
4. Schifano N, Castiglione F, Cakir OO, Montorsi F, Garaffa G. Reconstructive surgery of the scrotum. Int J Impot Res. 2022;34(4):359–368. doi:10.1038/s41443-021-00468-x
5. Ross JH, Kay R, Yetman RJ, Angermeier K. Primary lymphedema of the genitalia in children and adolescents. J Urol. 1998;160(4):1485–1489.
6. Abdelfattah U, Elbanoby T, Hamza F, et al. Treatment of advanced male genital lymphedema with a complete functional lymphatic-system pedicled transfer. Urology. 2023;175:190–195. doi:10.1016/j.urology.2023.02.006
7. Yamamoto T, Daniel BW, Rodriguez JR, et al. Radical reduction and reconstruction for male genital elephantiasis (3R SCIP-LFT). J Plast Reconstr Aesthet Surg. 2022;75(2):870–880. doi:10.1016/j.bjps.2021.08.011
8. 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
9. Guiotto M, Watfa W, Raffoul W, di Summa PG. ALT flap with vascularized fascia lata associated with thigh flaps. Ann Plast Surg. 2020;85(6):e44–e47. doi:10.1097/SAP.0000000000002533
10. Mopuri N, O'Connor EF, Iwuagwu FC. Scrotal reconstruction with modified pudendal-thigh flaps. J Plast Reconstr Aesthet Surg. 2016;69(2):278–283. doi:10.1016/j.bjps.2015.10.039
11. Yormuk E, Sevin K, Emiroglu M, Türker M. A new surgical approach in genital lymphedema. Plast Reconstr Surg. 1990;86(6):1194–1197. doi:10.1097/00006534-199012000-00027
12. Yao H, Zheng D, Xie M, et al. A modified bilateral scrotal flap for penile skin defect repair. J Vis Exp. 2022;(189). doi:10.3791/64017
13. Mendel L, Neuville P, Allepot K, et al. Bilateral pedicled scrotal flaps as an alternative to skin graft in penile shaft defects repair. Urology. 2023;176:206–212. doi:10.1016/j.urology.2023.03.025
14. Karaçal N, Livaoglu M, Kutlu N, Arvas L. Scrotum reconstruction with neurovascular pedicled pudendal-thigh flaps. Urology. 2007;70(1):170–172. doi:10.1016/j.urology.2007.03.049
15. Yu P, Sanger JR, Matloub HS, Gosain A, Larson D. ALT fasciocutaneous island flaps in perineoscrotal reconstruction. Plast Reconstr Surg. 2002;109(2):610–616. doi:10.1097/00006534-200202000-00030
16. Spyropoulou GA, Jeng SF, Demiri E, Dionyssopoulos A, Feng KM. Reconstruction of perineoscrotal and vaginal defects with pedicled ALT flap. Urology. 2013;82(2):461–465. doi:10.1016/j.urology.2013.04.044
17. Lin CT, Wang CH, Ou KW, et al. Clinical applications of the pedicled ALT flap in reconstruction. ANZ J Surg. 2017;87(6):499–504. doi:10.1111/ans.12973
18. Kayikçioğlu A. A new technique in scrotal reconstruction: short gracilis flap. Urology. 2003;61(6):1254–1256. doi:10.1016/s0090-4295(03)00158-4
19. Hsu H, Lin CM, Sun TB, Cheng LF, Chien SH. Unilateral gracilis myofasciocutaneous advancement flap for single-stage reconstruction of scrotal and perineal defects. J Plast Reconstr Aesthet Surg. 2007;60(9):1055–1059. doi:10.1016/j.bjps.2006.09.005
20. Daigeler A, Behr B, Mikhail BD, Lehnhardt M, Wallner C. Bilateral pedicled gracilis flap for scrotal reconstruction. J Plast Reconstr Aesthet Surg. 2016;69(9):e195–e196. doi:10.1016/j.bjps.2016.05.024
21. Coskunfirat OK, Uslu A, Cinpolat A, Bektas G. Superiority of medial circumflex femoral artery perforator flap in scrotal reconstruction. Ann Plast Surg. 2011;67(5):526–530. doi:10.1097/SAP.0b013e318208ff00
22. Chitale VR. Role of tensor fascia lata musculocutaneous flap in lymphedema of the lower extremity and external genitalia. Ann Plast Surg. 1989;23(4):297–304.