Sagittal synostosis after excision of congenital pigmented nevus of the scalp: a possible complication of the tissue expansion technique

Abstract The tissue expansion technique is the most suitable procedure for Chinese patients with microtia. However, it is difficult to determine whether the expanded flap is sufficient, and there are no clear or objective guidelines for determining the volume of the expander for different sizes of auricles. One hundred patients with unilateral microtia who visited our department in 2021 were randomly selected for auricular data collection using 3D scanning. The auricle length, width, projection, perimeter, and surface area were measured. Eight different volumes of expanders underwent CT and the surface areas of these expanders were measured. The surface areas of the auricles and expanders were compared and the correlation between them was explored. The average auricle parameters were calculated. The scatter plot showed a linear relationship between auricle length and auricle surface area (R2 = 0.9913), which demonstrated that the auricle area was approximately equal to the auricle length multiplied by 76.921. Additionally, the surface area of the expanders was measured and made into a table for selection against the surface area of the auricles. Using our equation, the auricle surface could be estimated by simply measuring the non-defective auricle length; therefore, the suitable volume of the expander could be determined.

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A case of proliferative nodule arising within a giant congenital pigmented nevus

Skin Cancer ◽

10.5227/skincancer.28.264 ◽

2014 ◽

Vol 28 (3) ◽

pp. 264-267

Author(s):

Kazunori URBE ◽

Yumiko KAKU ◽

Fumitaka OHNO ◽

Naoko WADA ◽

Kayo HARADA ◽

...

Keyword(s):

Congenital Pigmented Nevus ◽

Pigmented Nevus

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Treatment of a Congenital Melanocytic Nevus on the Forehead with Immediate Tissue Expansion Technique: A Three-Year Follow-Up

Pediatric Dermatology ◽

10.1111/j.1525-1470.2011.01554.x ◽

2012 ◽

Vol 29 (5) ◽

pp. 621-624 ◽

Cited By ~ 3

Author(s):

M. Erol Demirseren ◽

Candemir Ceran ◽

D. Deniz Demirseren

Keyword(s):

Tissue Expansion ◽

Melanocytic Nevus ◽

Congenital Melanocytic Nevus ◽

Expansion Technique

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PO-0919 Tissue Expansion Technique For Treatment Of Congenital Hand Syndactyly

Archives of Disease in Childhood ◽

10.1136/archdischild-2014-307384.1540 ◽

2014 ◽

Vol 99 (Suppl 2) ◽

pp. A550.2-A550

Author(s):

D Kravljanac ◽

R Simic

Keyword(s):

Tissue Expansion ◽

Expansion Technique

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A simple external tissue expansion technique based on viscoelastic properties of skin to attain direct closure of a large scalp defect: A case report

Indian Journal of Plastic Surgery ◽

10.4103/0970-0358.173137 ◽

2015 ◽

Vol 48 (03) ◽

pp. 309-312

Author(s):

Bandikatla Venkata Ratnam

Keyword(s):

Case Report ◽

Viscoelastic Properties ◽

Tissue Expansion ◽

Defect Coverage ◽

Mechanical Device ◽

Direct Closure ◽

Patient Profile ◽

Scalp Defects ◽

Expansion Technique ◽

Scalp Defect

ABSTRACT Background: Direct closure of large scalp defects is not an easy task. Complicated flap designs or staged surgeries over a period of 6 months are often required. A case of a large scalp defect that was closed directly in 3 months by applying a simple external tissue expansion technique is presented in this report. Patient Profile: A 28-year-old male patient presented with a painful swelling of about 13 cm × 14 cm, on frontoparietal scalp. A biopsy done elsewhere reported it to be a neurofibroma. He sought tumour excision and scalp defect coverage by hair-bearing scalp in a period of less than 5 months. Materials and Methods: The tumour was excised and the adjacent scalp was gradually expanded with the help of an external fixator. The patient had immediate pain relief after excision. The goal of repairing scalp defect and replacing it with hairy scalp was achieved in 3 months. Conclusion: The mechanical device required for this technique is relatively easily accessible. It is not difficult to achieve desirable outcomes, and the same can be applied to large wounds on other areas.

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