Fox Fingers | Extensor Digitorum Communis/Indicis Proprius Tendinopathy
Fox fingers is a condition that affects one or multiple tendons stemming from two muscles in your forearm, wrist, and fingers. Tendons are like little ropes that connect your muscles to your bones, and they help you move specific joints. When you play video games or use your wrist and fingers a lot, these tendons can get irritated and swollen, causing pain. These tendons in particular are what allows each person to lift their fingers which is necessary to click/push buttons or screens.
This diagnosis is termed “Fox fingers” due to the frequent occurrence in melee players who main Fox. This can also be present in PC gamers who play high actions per minute (APM) games/characters (think Invoker in Dota 2, or rhythm games like Osu!) gamers. In these games players are required to perform frequent actions for prolonged periods of time which can lead to overuse of the finger extensor muscles/tendons. Through improper positioning, poor conditioning, or inadequate rest these tendons will take the brunt of this and elicit pain. This name “Fox fingers” is also interchangeable with Extensor digitorum communis (EDC) / Indicis proprius tendinopathy (EIP). This diagnosis is vastly different from carpal tunnel syndrome as carpal tunnel from gaming is much less common than many know and believe. Discussed below are just a few simple, but effective ways to fix wrist pain from gaming.
Gamers are likely to begin experiencing pain and discomfort while playing and a sore, achey, or stiff feeling after in the area indicated to the right. Weakness is also likely to be present with lifting and moving the mouse as well as lifting the finger off the screen/mouse. This is likely to decrease performance and alter the gameplay of the individual where movements may be slowed or less precise. Pain may be worse with activities such as playing the piano, picking up cards or game pieces, using scissors to open a new package, or throwing a curveball while playing Pokemon Go.
The following information is provided for general educational purposes only and should not be considered medical advice. It is not intended to replace consultation with a qualified healthcare professional. If you have specific concerns or questions about your health or medical condition, please seek the guidance of a licensed physician or another qualified medical practitioner. Any reliance you place on the information provided is solely at your own risk. In no event will the author or 1HP be liable for any loss or damage arising from using this information. Always consult with a healthcare professional before starting or changing any medical treatment or regimen.
Gamers use their fingers a lot! Gamers are at risk because of the long durations we play. Oftentimes this means we are taking less rest breaks when we are in the zone because we don’t always think to put our body first. Pain is something that can be reduced from distractions and gaming is a good distractor which makes it hard for gamers to know when to stop due to pain. Gamers are also at risk because of the specific motions required when playing. Gamers playing high APM games are at an increased risk because of the repetitive strain in lifting up (extending) the finger. Each time the mouse is clicked, these muscles/tendons are being used. For other games like Smash, players may notice discomfort after frequently playing melee which utilizes the fingers at high rates of speed and often does not allow for rest breaks mid game to limit the overall use.
Returning from this injury takes a concerted effort, but can be done without much time away from the game. Below are a few steps that individuals need to understand and take when pain in this area occurs.
Diagnosis specific tip: Consider utilizing voice to text if performing school or work duties for long periods of time as this will save the muscles/tendons from an additional workload. Spring loaded scissors may also be indicated if at a job or in school which requires a lot of cutting.
*Surgery is very rarely required in order to effectively treat
The diagnosis was explained in short above, but for those wanting to know and learn more this is for you.
Specifically, this diagnosis is looking at two muscles which end up diverging into 5 total tendons (connect muscle to bone) which are responsible for lifting (extending) the fingers. These tendons can feel irritated at various points such as the wrist crease as they run from near the elbow into the tips of the fingers. Through repetitive use, inadequate amounts of rest, or forceful clicking the tendon can experience inflammation which if ignored may lead to structural damage over time. This overuse leads to a pain response to warn the body of damage so that individuals will stop the aggravating activity.
Tendons responsible:
*Both muscles also help in extending the wrist
Ganglion Cyst-A fluid filled sac that grows from the lining of our joints, often times needs to be removed. This is important to seek medical advice from a doctor regarding treatment.
Intersection Syndrome-Intersection Syndrome mimics Gamers Thumb (De Quervain’s Tenosynovitis) as well as Fox Fingers as it is within close proximity to the pain location. Instead with Intersection syndrome, it will present (Proximal to the dorsal wrist crease) higher up on the back of the forearm roughly 4-6 cm from the wrist crease. This is a form of tenosynovitis between 2 sets of tendons intersecting and near the wrist causing friction and pain.
There are several approaches to take in order to prevent this injury from occurring or coming back. There are 3 main factors to first focus on and address, but it is also important to keep in mind other secondary factors which can be helpful to address.
Additional
Pain Pattern: Frozen Fingers/Fox Fingers One of the most common pain patterns I see as a physical therapist in esports is this: sharp or achy pain and stiffness across the back of the hand, usually along the lines of the fingers, sometimes extending into the…
Written By: Brett Becker, OTR/L, MS, ACE-CPT