Knee Injury Workers' Compensation in California

The knee bears the body's weight with every step. In jobs that require kneeling, climbing stairs, carrying loads, or standing for hours, the joint takes constant stress. A fall, a bad twist, or years of repetitive work can damage it in life-changing ways.

If you suffered a knee injury at work in California, Zapata Legal Group, APC can help you obtain the treatment and compensation you are owed. We represent injured workers only — never employers or insurers.

Torn meniscus — The menisci are cartilage discs that cushion the knee. Tears frequently occur from sudden twisting, falls, or years of squatting or kneeling at work. The meniscus does not repair itself — most tears require surgical treatment (meniscectomy or arthroscopic repair).

Anterior cruciate ligament (ACL) tear — The ACL is one of the main ligaments stabilizing the knee. Tears occur primarily from abrupt changes in direction, falls, or direct impacts. These are serious injuries requiring surgical reconstruction and months of rehabilitation.

Patellar (kneecap) fracture — The patella can fracture from direct falls onto the knees (very common in flooring, tile, and construction workers), vehicle accidents, or impacts from objects. Some fractures require surgery; others are treated with immobilization.

Patellar tendinitis (jumper's knee) — Inflammation of the patellar tendon, which connects the kneecap to the tibia. Develops from repetitive flexion and extension — climbing and descending stairs, squatting, carrying loads.

Knee bursitis (housemaid's knee) — Inflammation of the bursa, usually caused by kneeling for extended periods. Common in flooring installers, landscapers, and construction workers.

Medial collateral ligament (MCL) tear — Occurs in workplace accidents with lateral blows to the knee or angled falls.

Patellofemoral syndrome — Pain beneath or around the kneecap, frequently caused by repetitive work activities such as stair-climbing or squatting.

Does Workers' Compensation Cover Knee Injuries?

Yes. California workers' compensation covers knee injuries caused or aggravated by work, without any need to prove your employer did something wrong (no-fault system).

Knee injuries can be: - Acute — A specific accident: a fall, an impact, a twist. The injury date is the day of the accident. - Cumulative trauma — The injury develops gradually from years of squatting, kneeling, stair-climbing, or carrying loads. The injury date is calculated differently (see deadlines below). - Aggravation of a pre-existing condition — If you already had a knee problem and work made it worse, that aggravation is compensable.

Benefits You May Be Entitled To

Full Medical Treatment

The insurer must pay for all reasonably necessary treatment for your knee injury: - Orthopedic or knee surgeon evaluation - MRI and other diagnostic studies - Physical therapy - Injections (cortisone, hyaluronic acid) - Arthroscopic surgery (meniscus repair, ACL reconstruction) - Post-surgical rehabilitation - Future medical care in case of permanent disability

Temporary Disability (TD)

If the knee injury prevents you from working during recovery, you are entitled to approximately two-thirds of your average weekly wages up to statutory maximums.

Permanent Disability (PD)

Knee injuries requiring surgery or leaving permanent functional restrictions generally produce some level of permanent disability. The percentage is determined by medical evaluation and converts to additional compensation.

Supplemental Job Displacement Voucher

If you cannot return to your previous work because of permanent knee restrictions, and your employer has no modified work available, you may be entitled to a $6,000 training voucher.

Construction — Flooring and tile installers, carpenters, workers constantly climbing and descending ladders and stairs.
Warehouses and distribution — Order pickers who cover long distances and lift boxes repeatedly.
Healthcare — Staff who stand through long shifts or assist with patient transfers.
Agriculture — Workers who kneel to harvest strawberries, lettuce, and other ground-level crops.
Manufacturing — Assembly line operators who squat or kneel during the production process.
Cleaning and maintenance — Frequent kneeling to clean floors, install equipment.
Security and guard services — Long hours standing on hard surfaces, frequent stair use.

How an Attorney Protects Your Knee Injury Case

Treatment authorization. The insurer can deny or delay knee surgery or an MRI through Utilization Review. An attorney can challenge those decisions so you receive the care your doctor recommends.

Proving the work connection. In cumulative trauma cases, the insurer may dispute that the injury is work-related. An attorney can gather evidence of your work history, job physical requirements, and the relationship to your injury.

Medical evaluation (QME/AME). The medical evaluator determines the level of permanent disability. Preparation for that examination and selection of the evaluator are critical moments.

Negotiation and litigation. If the insurer does not offer a fair settlement, we take the case to a WCAB hearing.

Key Deadlines

30 days to report the injury to your employer.
1 year from the date of the acute injury, or from the last day of work contributing to cumulative trauma (or from when you knew the condition was work-related), to file a claim with the WCAB.

Contact Us

Zapata Legal Group, APC 6320 Commodore Sloat Drive, Los Angeles, CA 90048 Intake@ZapataLegalGroup.com Phone: (800) 555-0142

Kane Liberman, Esq. | CA Bar No. 342405

Related pages: - Back injury at work — The most frequent work injury in California - Shoulder injury at work — Another frequently affected joint - Cumulative trauma — Injuries from repetitive motion - California workers' compensation — Your full rights

Frequently Asked Questions

Does workers' comp cover meniscus surgery caused by repetitive work?

Yes. Meniscus tears caused by work squatting or kneeling are compensable as cumulative trauma under California Labor Code §3208.1. The insurer must pay for treatment, including surgery, if reasonably necessary.

Can I file a claim if I already had knee arthritis before my injury?

Yes. If work aggravated your arthritis, that aggravation is compensable. Medical evaluation will determine what portion of your current condition is attributable to work through an apportionment analysis.

How long does ACL reconstruction recovery take in a workers' comp case?

ACL reconstruction typically requires six to twelve months for full functional recovery. You are entitled to temporary disability benefits during that period. Workers with intensive physical job demands may take longer.

Can I receive compensation for knee bursitis from kneeling at work?

Yes. Bursitis caused by prolonged kneeling is cumulative trauma and is compensable under California law.

What if there is disagreement between doctors about whether I need knee surgery?

You have the right to an independent Qualified Medical Evaluator (QME) to resolve the dispute. An attorney can guide you through that process so your position is properly evaluated.