Can Artificial Tendons Restore Function in a Deformed Thumb? - Orthopedics

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Are there artificial tendons for fingers?


My left thumb has been missing a tendon since childhood.
I'm not sure if it was congenital or if it was severed later, but it causes my thumb to be unable to extend properly and to bend.
I would like to know if there are artificial tendons available.
If so, how difficult is the reconstruction? Are there any potential complications, such as impacts on grip strength? Thank you.

Niming, 20~29 year old female. Ask Date: 2019/10/02

Dr. You Dianqi reply Orthopedics


Hello: The phenomenon you described strongly suggests that medical evaluation in a clinical setting is necessary to accurately identify your underlying issues.
It is essential to first determine the true problem in order to find a reasonable solution.
If your condition is indeed due to a deficiency in extensor tendons (whether congenital or acquired), there are corresponding methods to address it, but identifying the correct etiology remains the primary prerequisite.
Regarding the sequelae, there are specific management strategies that correspond to the potential aftereffects, which will ultimately depend on the collaborative decision-making between you and your healthcare team regarding the treatment approach.
Wishing you a speedy recovery.

Reply Date: 2019/10/02

More Info


The question of whether artificial tendons can restore function in a deformed thumb, particularly in cases where there is a congenital absence or an acquired injury, is a complex one that involves multiple factors, including the nature of the deformity, the specific surgical techniques employed, and the rehabilitation process following surgery.

Artificial tendons, often made from synthetic materials or biological grafts, have been developed to replace or augment damaged or absent tendons in various parts of the body, including the hand. In the case of a deformed thumb, particularly one that has limited mobility due to a lack of tendon function, surgical intervention may be considered. This could involve the use of artificial tendons to restore the ability to extend the thumb or improve grip strength.

The surgical procedure to implant artificial tendons can be quite intricate. It typically requires a skilled hand surgeon who specializes in tendon repair and reconstruction. The complexity of the surgery will depend on several factors, including the extent of the deformity, the condition of the surrounding tissues, and whether there are any other underlying issues that need to be addressed. For instance, if the thumb has been deformed for a long time, the surrounding muscles and ligaments may also be affected, which could complicate the surgery.

Regarding the potential for complications or side effects, there are several considerations. After surgery, patients may experience pain, swelling, and limited mobility as they begin the rehabilitation process. Physical therapy is often a crucial component of recovery, as it helps to strengthen the muscles around the thumb and improve overall function. The success of the surgery and the effectiveness of the artificial tendon in restoring function will largely depend on the patient's adherence to the rehabilitation program.

As for long-term outcomes, while many patients experience significant improvements in thumb function and grip strength after surgery, there is always a risk of complications. These can include tendon rupture, infection, or the development of scar tissue that may limit mobility. Additionally, some patients may experience changes in sensation or strength in the affected thumb, which can impact their ability to perform certain tasks.

In summary, while artificial tendons can potentially restore function in a deformed thumb, the success of such procedures depends on various factors, including the surgical technique, the patient's overall health, and their commitment to rehabilitation. It is essential to have a thorough discussion with a qualified hand surgeon who can assess the specific situation and provide tailored advice based on the individual's needs. They can also explain the risks and benefits associated with the use of artificial tendons and help set realistic expectations for recovery and function post-surgery.

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