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Z "-shaped osteotomy combined with locking plate internal fixation: A precise surgical technique for shoulder narrowing in transgender women.

This retrospective study demonstrates that a "Z"-shaped osteotomy combined with locking plate internal fixation is a safe and effective surgical technique for significantly reducing shoulder width and enhancing patient satisfaction in transgender women while preserving full shoulder joint function.

Original authors: liming liu, dongxu zou, jingang liu, qian gao, xianhe li

Published 2026-07-17
📖 3 min read☕ Coffee break read

Original authors: liming liu, dongxu zou, jingang liu, qian gao, xianhe li

Original paper licensed under CC BY 4.0 (https://creativecommons.org/licenses/by/4.0/). This is an AI-generated explanation of the paper below. It is not written or endorsed by the authors. For technical accuracy, refer to the original paper. Read full disclaimer

Imagine your body as a house you've lived in since you were born. For most people, the blueprint matches how they feel inside, but for some transgender women, the "roofline" of their house—the width of their shoulders—doesn't match their identity. This mismatch can cause deep emotional distress, known as gender dysphoria. While medicine has gotten very good at helping people change their skin, hair, and hormones, there's a tricky part: once you hit adulthood, your bones stop growing. Hormones can't shrink a wide shoulder; it's like trying to shrink a brick wall by painting it a different color. To actually change the size of the wall, you have to physically take some bricks out. This is where a new kind of surgery comes in, aiming to carefully shorten the collarbone (clavicle) to make the shoulders look narrower and more feminine, without breaking the "house" or making it wobbly.

This study, led by a team of surgeons in China, tested a specific, high-precision recipe for doing exactly that. They looked at 46 transgender women who underwent a special operation to shorten their collarbones. Instead of just sawing the bone straight across like a simple chop, the surgeons used a "Z-shaped" cut. Think of it like cutting a piece of wood into a zigzag pattern and then sliding the two pieces together; this creates a much larger surface area for the bone to heal against, making it stronger and less likely to slip. To hold everything in place while it healed, they used a locking metal plate and screws, acting like a very strong, internal cast.

The results were quite promising. After the surgery, the patients' shoulders got noticeably narrower. On average, the width dropped from about 39.90 cm before the operation to 37.01 cm after, a reduction of nearly 3 cm. That might not sound like a lot, but the math showed it was a real, significant change. Even better, the "Z" shape and the metal plate worked perfectly: every single patient's bone healed completely, and no one suffered serious problems like infection, nerve damage, or the bone failing to knit back together. The patients felt great about the results, giving the surgery an average satisfaction score of 9.09 out of 10, and their shoulder movement remained almost perfect, scoring 95.5 out of 100 on a standard function test.

The paper also looked at the "scars" left behind. Because the surgeons were careful to close the skin in layers and use fine stitches, the scars were minimal, scoring just 1 point on a scale that measures how bad a scar looks. The study suggests that this specific technique—using the zigzag cut and a locking plate—is a safe and effective way to change shoulder width. It confirms that you can physically reshape the skeleton to match a person's identity without sacrificing their ability to move their arms. However, the authors are careful to note that this was a single study with a specific group of people, so they are planning bigger, longer studies to make sure these good results last for years and to see if the technique works for everyone. For now, it offers a new, reliable option for those looking to align their physical shoulders with their inner selves.

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