External fixation is one of the oldest and most recognizable techniques used in bone lengthening. For many years, it was the primary tool for correcting limb shortening and deformities. Today, it continues to play an important role in reconstructive orthopedics; however, in the context of cosmetic bone lengthening, its use requires very careful patient selection.

The biological basis of this method is distraction osteogenesis. After a controlled bone cut (osteotomy) is made, the bone segments are gradually pulled apart. The body fills the resulting space with new bone tissue, and the muscles, tendons, fascia, and blood vessels also lengthen along with it.

In the case of an external camera, stabilization is achieved using metal pins that pass through:

• skin,
• subcutaneous tissue,
• muscles,
• bone.

The pins connect to an external frame that allows for gradual limb lengthening. Mechanically, this is an effective and precise solution.

External cameras are particularly useful for:

• severe congenital limb defects,
• significant axial and rotational deformations,
• significant shortening requiring a multi-step correction,
• in situations where the use of an internal implant is not possible.

The problem arises when surgically increasing height in healthy patients. Each point where a pin penetrates the skin is a potential entry point for infection. In clinical practice, minor infections at pin sites are very common. Intensive physical therapy—essential in the leg-lengthening process—causes tissue to shift relative to the pins, which can lead to microtrauma and increase the risk of inflammation.

In addition, scars from external braces are not limited to the skin. They can affect deep soft tissue structures, which in some cases leads to limited knee joint mobility and requires further treatment.

In reconstructive orthopedics, the external fixator remains an extremely valuable tool. However, in cosmetic bone lengthening, there is a growing trend toward methods that carry a lower risk of infection and offer greater comfort for the patient.

Summary – External Camera

• is based on the phenomenon of distraction osteogenesis,
• allows for the correction of significant deformities and shortening,
• requires pins that pass through the skin and soft tissue,
• is associated with a significant risk of infection at the pin sites,
• may cause deep scarring and limited mobility,
• In cosmetic bone lengthening, it is mainly used when there is no alternative.