Published by Carabin Shaw – San Antonio Personal Injury Lawyers
Repetitive Stress and Carpal Tunnel Injuries: Proving a “Slow-Developing” Work Injury
Not every serious work injury announces itself with a crash or a fall. Repetitive stress injuries, including carpal tunnel syndrome, develop quietly over months or years of performing the same motions day after day. By the time a San Antonio worker realizes the pain in their hands, wrists, or shoulders is not going away, they may already be dealing with nerve damage, chronic inflammation, or a condition requiring surgery. These workers have every right to file a workers’ compensation claim — but proving a repetitive stress injury is more complex than reporting a single accident. That is why injured workers in San Antonio seek out experienced work injury lawyers who know how to build these cases.
The Bureau of Labor Statistics classifies repetitive motion injuries as a major source of lost-time work injuries in the United States. Assembly line workers, data entry employees, cashiers, meat processing workers, warehouse employees, and healthcare workers are among the most frequently affected. In Texas, repetitive stress injuries are recognized under workers’ compensation law as occupational diseases, meaning workers are entitled to benefits when their job duties caused or substantially contributed to the condition. Workers’ compensation attorneys who handle these cases know how critical it is to establish that connection early and document it thoroughly.
Insurance companies look for any reason to deny repetitive stress and carpal tunnel claims. They may argue the condition is not work-related, existed before employment, or is caused by activities outside work. A San Antonio workers’ comp lawyer who regularly handles these cases knows exactly how to counter those arguments and ensure that injured workers receive the medical treatment and income benefits they are entitled to under Texas law.
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What Are Repetitive Stress Injuries?
Repetitive stress injuries (RSIs), sometimes called cumulative trauma disorders or overuse injuries, result from sustained, repeated strain on specific muscles, tendons, nerves, and joints. They differ from acute injuries in that there is rarely a single identifiable event. Instead, microtrauma accumulates over time until the tissue can no longer recover between work shifts.
Carpal Tunnel Syndrome
Carpal tunnel syndrome (CTS) is the most well-known repetitive stress injury. It occurs when the median nerve — which runs through a narrow passageway in the wrist called the carpal tunnel — becomes compressed due to swelling of surrounding tendons and tissue. Symptoms include numbness, tingling, and burning in the thumb, index, and middle fingers; grip weakness; and sharp wrist pain, especially at night. Jobs that involve sustained keyboard use, assembly work, tool operation, and vibrating equipment are closely associated with CTS. The National Institute for Occupational Safety and Health (NIOSH) recognizes repetitive hand and wrist motions as a primary risk factor.
Tendinitis and Tenosynovitis
Tendinitis is inflammation of a tendon, often caused by repetitive strain. Common work-related forms include rotator cuff tendinitis in the shoulder, lateral epicondylitis (tennis elbow) from repetitive gripping and forearm rotation, and De Quervain’s tenosynovitis in the wrist from repetitive thumb motions. These conditions are painful and often require extended rest, physical therapy, or steroid injections. Severe cases may require surgery.
Bursitis
Bursae are fluid-filled sacs that cushion joints. Repetitive motions can inflame these sacs, causing bursitis — most commonly in the shoulder, elbow, hip, and knee. Workers who kneel frequently, perform overhead work, or repeat the same arm motion throughout the workday are at elevated risk.
Trigger Finger
Repetitive gripping or pinching can cause inflammation of the tendon sheaths in the fingers, leading to trigger finger — a condition where the finger locks or catches when bent. Mechanics, assembly workers, and workers who use hand tools are commonly affected.
Thoracic Outlet Syndrome
Compression of nerves and blood vessels between the collarbone and first rib can result from repetitive overhead work or sustained awkward posture. This condition causes pain, numbness, and tingling in the neck, shoulder, arm, and hand.
Proving a Repetitive Stress Workers’ Comp Claim in Texas
Establishing the Work Connection
Texas workers’ comp law covers occupational diseases, which includes repetitive stress injuries caused by the nature of the work. To prevail on a claim, a worker must show that the repetitive nature of their job duties contributed to or caused the condition. Medical records, job descriptions, and expert testimony from occupational medicine doctors or specialists all play a role in establishing this connection.
When Did the Injury “Occur”?
For repetitive stress claims, Texas law has specific rules about when the injury is deemed to have occurred — generally, when the worker knew or should have known that the condition was work-related. This can affect deadlines for reporting and filing. Consulting a workers’ comp attorney as soon as you suspect a repetitive stress injury helps you meet all applicable timelines.
Medical Documentation Is Everything
Tell your treating physician in detail about your job duties — what motions you perform, how often, how many hours per day, and for how many years. The physician’s notes connecting your diagnosis to occupational exposure are the foundation of your claim. An EMG or nerve conduction study may be required to confirm carpal tunnel syndrome. MRIs and other imaging may be needed for other RSI diagnoses.
Dealing with Pre-Existing Condition Arguments
Insurance carriers frequently argue that an RSI is a pre-existing condition unrelated to work. Under Texas workers’ comp law, if your job duties aggravated or accelerated a pre-existing condition, you may still be entitled to benefits for that aggravation. Work injury lawyers in San Antonio can help you fight back when insurers use your medical history against you.
Impairment Ratings for RSIs
When you reach Maximum Medical Improvement, an impairment rating reflects any permanent limitations caused by the RSI. Carpal tunnel syndrome that results in persistent numbness, weakness, or the need for surgery can produce impairment ratings that entitle you to impairment income benefits. If the assigned rating seems too low given your symptoms and functional limitations, it can be disputed through the Texas DWC process.
Return-to-Work Issues
Workers who develop serious RSIs often cannot return to the same type of job. If you are told to return to the same repetitive duties that caused your injury before you have fully recovered, your attorney can challenge that determination and seek modified work assignments or extended income benefits while you rehabilitate.
Repetitive stress injuries and carpal tunnel syndrome deserve to be taken as seriously as any acute work injury. San Antonio workers who suffer these conditions — often after years of loyal service in demanding jobs — deserve legal representation that fights for the full spectrum of workers’ comp benefits. If your job duties caused or contributed to a chronic work injury, talking to a workers’ comp lawyer in San Antonio is one of the most valuable steps you can take.
