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Knee Injuries After Motor Accidents in NSW: What Changed Since the 2017 CTP Reforms?

Knee injuries from motor accidents in NSW are now governed by the 2017 CTP reforms, which prioritise medical evidence, rehabilitation planning, and impairment assessment. These changes affect eligibility for damages, treatment benefits, and weekly payments. Claimants must act promptly, provide detailed medical reports, and engage with approved rehabilitation providers to comply with the new framework.

Current as at 6 October 2026

How the 2017 CTP Reforms Changed Knee Injury Claims in NSW

A knee injury sustained in a motor accident in Bankstown, NSW, is now governed by the Motor Accident Injuries Act 2017, which introduced significant changes to how compensation is assessed and paid. The reforms shifted focus from fault-based claims to a more structured, needs-based system that prioritises early rehabilitation and medical management. For knee injuries, this means that entitlement to treatment and care benefits, weekly income payments, and potential damages now depends on whether the injury meets specific thresholds under the law. The reforms also introduced new requirements for medical evidence and rehabilitation planning, which affect how claimants must engage with the CTP scheme.

What the 2017 Reforms Changed for Knee Injury Claims

The 2017 reforms replaced the previous fault-based system with a statutory framework that separates entitlements into statutory benefits and common law damages. For knee injuries, the key changes are:

  • The introduction of the 'threshold injury' concept, which determines whether a claimant can access damages. A knee injury may qualify as a threshold injury if it results in a permanent impairment of 10% or more of the whole person, or if it is a soft tissue injury with specific neurological signs.
  • The requirement for a medical practitioner to assess and report on the nature and extent of the knee injury using the Motor Accident Guidelines. This includes documenting any ligament damage, meniscal tears, or joint instability that persists beyond 52 weeks.
  • A new emphasis on rehabilitation planning. Claimants must now work with a rehabilitation provider to develop a plan that includes targeted physiotherapy, functional assessments, and return-to-work support, particularly if the injury affects mobility or work capacity.

These changes mean that not every knee injury will result in a damages claim. The law now limits entitlement to damages if the only injuries are threshold injuries, and weekly benefits and treatment payments are generally capped after 52 weeks in such cases.

What Claimants Must Do to Comply with Post-2017 Requirements

To access benefits under the 2017 reforms, claimants must take several practical steps:

  • Seek medical treatment within a reasonable time after the accident. Delaying treatment may affect the insurer’s assessment of causation.
  • Provide a detailed medical report from a treating practitioner that includes a description of the injury, diagnostic imaging results (such as MRI or X-ray), and a functional assessment of the knee’s stability and range of motion.
  • Engage with a rehabilitation provider approved under the CTP scheme. This provider will assess the claimant’s capacity to return to work and recommend a rehabilitation plan.
  • Keep all records of medical appointments, physiotherapy sessions, and correspondence with the CTP insurer. These documents are essential for proving ongoing impact and for any future dispute.

Failure to follow these steps may result in delays or denial of benefits, even if the injury is genuine and caused by the accident.

How SIRA’s Guidance on Knee Injuries Differs After 2017

The State Insurance Regulatory Authority (SIRA) now provides detailed guidance on how to assess knee injuries under the Motor Accident Guidelines. Key differences from pre-2017 practice include:

  • A stronger emphasis on objective clinical evidence. For example, a diagnosis of a torn ACL must be supported by MRI findings and a clinical examination showing joint instability.
  • The requirement to assess whether a knee injury has caused a permanent impairment. This involves using the Whole Person Impairment (WPI) assessment, which is conducted by a qualified medical assessor.
  • A focus on functional outcomes. SIRA’s guidance states that a claimant must demonstrate how the knee injury affects daily activities, work performance, or mobility to qualify for ongoing benefits.

SIRA also clarifies that a knee injury involving a spinal nerve-root injury (such as sciatica affecting the knee) may still qualify as a soft tissue injury under the Act, but only if it produces neurological signs other than radiculopathy. This distinction is critical and must be clearly documented by medical practitioners.

Practical Example: A Knee Injury Claim in Bankstown

A 38-year-old driver in Bankstown was involved in a rear-end collision in February 2025. The impact caused a tear to the anterior cruciate ligament (ACL) and damage to the medial meniscus, confirmed by MRI. The claimant reported ongoing pain, instability, and difficulty walking after six months. The treating orthopaedic surgeon submitted a report under the Motor Accident Guidelines, confirming a 12% whole person impairment and recommending a 12-month rehabilitation plan. Because the injury was not a minor soft tissue injury and caused a permanent impairment above 10%, the claimant was eligible to claim damages. The CTP insurer paid treatment and care benefits, weekly income payments, and later settled a damages claim based on the medical evidence and functional impact.

Time Limits and When to Seek Advice

There are time limits that apply to motor accident claims in NSW. A claim for damages must generally be started within three years of the accident date. For statutory benefits, such as treatment and care, the claim must be made within 12 months of the accident. These deadlines are strict and cannot be extended unless a court orders otherwise.

If a claimant believes their benefits have been denied or reduced unfairly, they may request a review from the insurer or apply to the NSW Civil and Administrative Tribunal (NCAT) for a determination. Disputes often arise over the assessment of impairment or the adequacy of rehabilitation plans.

Every claim depends on its own facts. To request contact about your circumstances, complete the quick, no obligation enquiry form.

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