Repetitive Motion / Continuous Trauma
Attorney in California

Compression of the median nerve at the wrist from repetitive hand/wrist motion. Common in assembly workers, data entry, sign language interpreters, sewers, and warehouse packers. Diagnosis confirmed by nerve conduction studies; surgical release often required.

Years of lifting, bending, twisting in warehouse, construction, healthcare, or manufacturing. Often produces lumbar disc herniation, chronic radiculopathy, and surgical candidacy. Frequently disputed under apportionment defenses.

Inflammation of tendons from repetitive motion. Common in shoulders (rotator cuff), elbows (lateral and medial epicondylitis), and wrists (De Quervain's). Treatment ranges from rest and PT to surgical intervention.

Progressive hearing loss from sustained workplace noise exposure. Verified by audiograms compared to OSHA-required baseline tests. Compensable under California workers' comp with PD ratings and lifetime hearing aid benefits.

Meniscal tears, chondromalacia, and degenerative knee changes from years of standing on hard surfaces, climbing, or repetitive kneeling. Common in construction, healthcare, restaurant work, and law enforcement.

Sustained workplace stress, harassment, or trauma exposure producing PTSD, anxiety, or depression. Held to § 3208.3 'actual events of employment' standard; compensable when work events are the predominant cause.

For cumulative trauma and occupational illness, the statute of limitations starts when the worker first knew (or reasonably should have known) the injury was work-related — typically the date a doctor first connected symptoms to job duties. This often makes late-filing denials defeatable.

Workers must notify the employer within 30 days of awareness of a cumulative injury. Late notice doesn't always bar the claim, but creates a strong carrier defense. File the DWC-1 promptly even if past 30 days.

DWC-1 must be filed within 1 year of the date of injury — for cumulative trauma, that's the § 5412 date of knowledge, not the date of first exposure. Many workers think they're outside the statute when they're not.

For cumulative injuries spanning multiple employers, liability is apportioned among them based on contribution. Workers can pursue any liable employer for full benefits, with the carriers fighting apportionment among themselves.

Carriers can reduce PD awards by the percentage attributable to non-work causes — but only with substantial medical evidence. Vague 'age-related changes' arguments fail; specific symptomatic prior conditions are required.

Cumulative injuries are rated under the same PDRS as specific injuries. Whole-person impairment is determined from AMA Guides 5th Edition, adjusted by FEC rank, age, and occupation.

Resolves with splints, ergonomic adjustment, and PT. PD ratings typically 5-10% for residual symptoms.

Single-side release. PD typically 12-18%. Includes treatment, TD during recovery, and lifetime medical care for the operated side.

Both sides operated. Combined PD ratings higher due to occupation factor. Often combined with adjacent diagnoses (elbow, neck).

Disc bulges and herniations without surgery. PD ratings 13-20%. Lifetime medical care for chronic pain management.

Lumbar or cervical fusion. PD ratings 25-40%+. Often combined with SJDB voucher and State Return-to-Work Fund supplements.

Bilateral noise-induced hearing loss. Includes hearing aids, fittings, and lifetime audiology care. PD ratings vary by severity.

Stress-induced PTSD, anxiety, or depression. Held to higher § 3208.3 standard. Combined with vocational rehab when restrictions prevent prior occupation.

§ 5412 date-of-knowledge rule overrides simple 1-year-from-exposure analysis. The statute runs from when a doctor first connected symptoms to work, not from the first day of exposure. Many late-filing defenses fail under proper § 5412 analysis.

Apportionment to non-work causes requires substantial medical evidence — specific symptomatic prior conditions or specific non-work activities. Vague 'lifestyle factors' or 'normal aging' arguments fail at the WCAB.

Counter with treating physician opinions and panel QME selection focused on occupational medicine specialists. Carrier-aligned QMEs often produce defense-friendly reports that don't survive cross-examination.

Cumulative injuries can be filed against former employers when within § 5412 date-of-knowledge window. Former-employer claims are routine in cumulative practice.

Cumulative trauma by definition lacks a specific date — § 5412 codifies the rule. Carriers raising this argument are misstating the statute; we defeat it consistently.

Many cumulative injuries affect multiple body parts (neck + arms, back + knees, hands + elbows). Combined ratings under the Combined Values Chart can substantially increase awards. We document every affected body part.