Overview for NSW injured workers
Start with the dispute, not just the diagnosis
May be relevant when
Benefits to check
Legal help is useful when
How this affects your claim in practice
In a hand crush injury claim, the diagnosis is only the starting point. The records should connect hospital and surgical records and incident investigation, photographs where appropriate and witness details with the worker's practical limits, including grip strength, keyboarding, tool use, overhead work and lifting tolerance and dominant-hand limits and two-handed tasks. If the insurer disputes whether all injuries and consequential conditions are accepted, the response should address that reason directly.
Assessment source
- NSW Guidelines for the Evaluation of Permanent Impairment, paras 1.8-1.12: NSW Guidelines control the assessment method and AMA5 is used only where adopted and not modified.
- NSW Guidelines para 1.12: AMA5 Chapter 18 pain is excluded; chronic pain is assessed through the underlying diagnosed condition, while CRPS is assessed under the relevant NSW method.
- NSW Guidelines para 1.15: assessment should usually wait until maximum medical improvement, meaning the condition is stable and unlikely to change substantially in the next year.
- NSW Guidelines para 1.24: the effect on activities of daily living must not be used to increase or reduce an upper-extremity impairment calculated under the applicable upper-limb method.
- NSW Guidelines paras 1.26 and 2.8: values are rounded at each conversion stage; digit impairment converts to hand impairment, hand and other regional values convert to upper-extremity impairment, and AMA5 Table 16-3 converts upper-extremity impairment to WPI.
- NSW Guidelines paras 2.5 and 2.20: active movement is measured with a goniometer or inclinometer, passive movement is recorded for clinical comparison only, unreliable readings should be repeated, and the uninjured opposite limb may provide the worker's normal baseline.
- NSW Guidelines paras 2.8-2.13: values within one joint are added, same-limb regional values must be expressed in a common unit before combination, a deficit caused solely by a peripheral nerve lesion is not also rated as abnormal movement, and strength is used only in rare permitted cases.
- NSW Guidelines paras 2.14-2.20 modify the shoulder, biceps, impingement, joint-surface fracture and epicondylitis methods in AMA5 Chapter 16; para 2.21 directs upper-limb CRPS to the NSW Chapter 17 method rather than an AMA5 Chapter 16 or Chapter 18 pain rating.
- NSW Guidelines para 2.4: maximum upper extremity impairment is 60% WPI, equivalent to amputation through the shoulder.
What injuries or conditions may be assessed?
A hand crush injury may produce metacarpal or finger fractures, tendon rupture or adhesion, joint stiffness, digital or proximal nerve damage, vascular loss, amputation, scarring or CRPS.
- The mechanism is not the rating. Each permanent bone, joint, tendon, digit, nerve or amputation consequence must be assessed without counting the same loss twice.
Symptoms and findings that matter
The examiner measures each affected digit joint, maps sensory loss by digital or named nerve, records tendon function and confirms any amputation level or CRPS criteria.
Hand-therapy measurements, operative findings and repeatable two-point discrimination can be more informative than a broad report of poor grip.
What investigations are usually relevant
Investigations for hand crush injury may include contemporaneous GP, specialist, physiotherapy or hand-therapy records identifying the exact diagnosis and progression to maximum medical improvement and ultrasound, MRI, X-ray, CT, operation reports or arthroplasty records where they explain tendon, labral, joint, fracture or surgical findings. Each result should answer a defined clinical question and be read with the examination, diagnosis and history.
- Nerve conduction studies or EMG where clinically relevant, interpreted with the sensory and motor examination rather than used alone.
- Repeat active movement measurements and a clear note of whether pain, guarding or inconsistency affected the examination.
- Duties evidence describing overhead reaching, lifting, pushing, pulling, gripping, keyboard work, tool use and forearm rotation where relevant.
How WPI is assessed for this body part
Digit movement or amputation values are converted to hand impairment, then upper-extremity impairment and WPI. Separate digital nerve loss uses its sensory method before the required conversions.
A named proximal nerve or CRPS method may apply instead. Grip strength and nerve-caused movement are not added to duplicate the same crush-injury loss.
Table and value examples
Maximum upper extremity impairment
60% WPIThis is the upper extremity maximum, not the expected rating for ordinary shoulder, elbow, wrist or hand claims.
Source: NSW Guidelines para 2.4
Worked assessment illustrations
These examples paraphrase the assessment reasoning in the source material. They explain method only and are not predicted outcomes.
Illustration 1
Crush injury affecting two fingers
Assumed facts: Assume two fingers have different stable movement deficits after fracture and tendon treatment, with no separate digital sensory loss on examination.
Method: Each digit is calculated first, converted to hand impairment, and the hand result is converted through upper-extremity impairment to WPI with NSW rounding at each stage.
Illustrative outcome: The two digit percentages are not treated as WPI or casually added at the end. Exact measurements and conversion tables control the result.
Source: NSW Guidelines paras 1.26 and 2.5-2.13; AMA5 Chapter 16 digit and hand conversion tables
What usually does not increase WPI
Pain, tenderness, weakness complaints or an imaging label without a stable measurable impairment.
Passive movement loss used as though it were active movement impairment.
Grip or other strength loss used to duplicate pain, restricted movement, deformity or nerve loss.
An activities-of-daily-living adjustment added to or subtracted from the calculated upper-extremity value.
The same functional loss counted once under a nerve method and again as restricted movement.
Evidence checklist
The records for hand crush injury should include the accepted injury description and any dispute notice identifying the body part and diagnosis and repeat active range-of-motion measurements and opposite-side comparison where appropriate. They are most useful when the diagnosis, examination and practical restrictions are consistent.
- Imaging, operative reports and treatment records for the actual tendon, joint, fracture or arthroplasty condition.
- Sensory mapping, motor testing, static two-point discrimination or electrodiagnostic evidence where a nerve lesion is alleged.
- Work-duties and therapy records explaining the practical movement or nerve function affected.
How this injury commonly happens at work
Work-related hand crush injury can arise through high-force incident, fall, machinery, forklift, vehicle, crush, burn or sharp-object event and emergency treatment followed by rehabilitation or surgery. The chronology should identify the actual task or event and when symptoms or function changed.
Common insurer disputes
For hand crush injury, an insurer may dispute whether all injuries and consequential conditions are accepted and whether further surgery, prosthetics, scar treatment or rehabilitation is reasonably necessary. The written decision should be answered with evidence directed to those reasons.
Further disputes about hand crush injury may concern whether work capacity and impairment have been assessed too narrowly. The decision notice should identify which issue is relied on and the evidence said to support it.
Treatment and surgery issues
Depending on the diagnosis and treating opinion, management of hand crush injury may involve surgery, wound care, rehabilitation, prosthetic planning, pain management or specialist review where supported. The request should explain the expected functional benefit and its connection to the accepted injury.
Weekly payments and work capacity
Capacity evidence for hand crush injury should address grip strength, keyboarding, tool use, overhead work and lifting tolerance and dominant-hand limits and two-handed tasks. Proposed duties must be sustainable for the proposed hours, not merely possible once.
For hand crush injury, capacity evidence should address safe duties that avoid repetition or forceful use and weekly payments where partial capacity is disputed. The question is whether those activities can be performed safely, reliably and for the proposed hours—not whether a task can be attempted once.
How NSW Work Injury Claim can help
For hand crush injury, a claim review can help to separate diagnosis, work exposure and capacity evidence and test suitable duties against actual hand, wrist, elbow or shoulder demands. The purpose is to identify the precise decision and the evidence needed for the next available step, not to promise an outcome.
For hand crush injury, a claim review can help to review treatment denial reasons and IME assumptions and plan WPI or dispute steps where appropriate. The purpose is to identify the precise decision and the evidence needed for the next available step, not to promise an outcome.
Common questions about hand crush injury claims
How can work cause or aggravate hand crush injury?
For hand crush injury, the relevant work history may include high-force incident, fall, machinery, forklift, vehicle, crush, burn or sharp-object event and emergency treatment followed by rehabilitation or surgery. A claim still depends on the actual chronology and medical evidence. The records should identify what changed, when symptoms began or worsened, and how the diagnosed condition affects the worker's duties.
How is WPI assessed for hand crush injury?
For hand crush injury, digit movement or amputation values are converted to hand impairment, then upper-extremity impairment and WPI. Separate digital nerve loss uses its sensory method before the required conversions. The examiner measures each affected digit joint, maps sensory loss by digital or named nerve, records tendon function and confirms any amputation level or CRPS criteria. The assessor must apply the NSW Guidelines to the accepted, stable condition; the diagnosis or an operation does not by itself determine a percentage.
Which records are most useful for a hand crush injury assessment?
A hand crush injury assessment commonly needs the accepted injury description and any dispute notice identifying the body part and diagnosis, repeat active range-of-motion measurements and opposite-side comparison where appropriate, imaging, operative reports and treatment records for the actual tendon, joint, fracture or arthroplasty condition, and sensory mapping, motor testing, static two-point discrimination or electrodiagnostic evidence where a nerve lesion is alleged. Those records are most useful when they describe the same diagnosis, examination findings, treatment history and practical work restrictions.
What does an insurer commonly dispute about hand crush injury?
For hand crush injury, common issues include whether all injuries and consequential conditions are accepted, whether further surgery, prosthetics, scar treatment or rehabilitation is reasonably necessary, and whether work capacity and impairment have been assessed too narrowly. The response should address the insurer's stated reason with the relevant chronology, clinical findings, investigations and duties evidence rather than relying on the diagnosis alone.
How can hand crush injury affect weekly payments and suitable duties?
Capacity evidence for hand crush injury may need to address grip strength, keyboarding, tool use, overhead work and lifting tolerance, dominant-hand limits and two-handed tasks, and safe duties that avoid repetition or forceful use. A certificate should describe what the worker can do safely and sustainably. Proposed duties should then be checked against those restrictions and the real demands of the job.
What does not establish WPI for hand crush injury by itself?
For hand crush injury, pain, tenderness, weakness complaints or an imaging label without a stable measurable impairment. WPI depends on the accepted injury, objective findings and the method required by the NSW Guidelines after the condition has stabilised.
Request a calm claim position review
If you have received an insurer decision or you are unsure how your injury evidence fits together, we can help you identify the issue, organise the documents and consider the next step. Where ILARS funding is approved, eligible legal costs and necessary disbursements may be covered.