Hand surgery is a ‘blunt tool’
“The primary problem, of course, is the dermal fibrosis that we see that creates scarring and secondary problems,” said Gill Smith, a plastic surgery consultant who works with Ms. Miller at the hospital.
“In an ideal world, you would bandage up [the children] so that they could never injure their hands, but then they couldn’t use them, they couldn’t grow properly, and they could not develop,” Ms. Smith said in an oral presentation about hand surgery in children with RDEB. “You do not want them to get to the secondary stage, because the secondary stage is a real problem – you get all these impairments of hand function – pseudosyndactyly, finger contraction, and first web contracture, and ending up in a ‘mitten’ hand.”
Surgery is a very “crude” and “blunt tool,” Ms. Smith emphasized. Prevention is key, and perhaps in the future gene therapy, mesenchymal stem cells, and the like will mean that there is less need for hand surgery, she intimated. Until then, there are some things that can be done surgically – such as wrapping the hands, using gloves to protect the skin, stretching out the web spaces of the palm, and using splints. “All of these things we are trying to improve all the time, and come up with new ideas.”
The question is when to intervene? Ms. Smith said that in any other type of hand surgery, particularly in children where growth and function might be affected, the aim would be to “go in early.” In children with RDEB, however, the timing is not so clear: “Should we be going in early, before secondary joint changes, before we get secondary tendon shortening?” Perhaps this would result in less complex surgery, she suggested, but “it is a really huge deal for families and for children. For the moment we are still only really doing it when there [are] quite significant functional difficulties.”
When it comes to the type of surgery done to release the hands, “everyone has variants on the release technique,” but none are known to be better than any other, Ms. Smith said. Surgical release deals with consequences of dermal fibrosis but also creates more fibrosis, she cautioned.