MINORS MANUAL
Langer’s lines, also known as skin tension lines, are natural patterns of collagen fibre orientation in the dermis. These lines follow the direction in which the skin has the greatest elasticity and resistance to stretching. They are important in surgery and wound management, as incisions made parallel to these lines tend to heal better, with a lower risk of visible scarring and deformities.
Diagnosis
Understanding Langer’s lines does not require a clinical diagnosis but is essential for surgical and aesthetic wound management. By observing the distribution of the skin, the direction of these lines can be estimated, which varies depending on the body region. Generally, they are longitudinal on the limbs and circular on the face, around the eyes and mouth.
Differential Diagnosis
Related Term | Key Characteristics |
|---|---|
Skin relaxation lines | Patterns similar to Langer’s lines, but based on skin relaxation |
Skin folds | Natural skin folds, such as nasolabial grooves, which do not always align with Langer’s lines |
Emergency Management
Assess the wound direction: In cases of lacerations or cuts, identify whether the wound follows Langer’s lines, as this will influence healing and scar formation.
Suturing: Whenever possible, sutures should be made parallel to Langer’s lines to reduce tension on the wound and improve the aesthetic outcome.
Wound care: Wounds perpendicular to Langer’s lines, which tend to heal with more tension, require extra attention during closure to minimise scarring.
Definitive Treatment
In elective or reconstructive surgical procedures, incisions are planned following Langer’s lines to optimise healing. Wounds that do not follow these patterns should be managed with careful closure techniques to reduce tension, improve scar appearance, and promote better healing.
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