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Nolan Horner, MD

Causation and necessity

Causation and Surgical Necessity Review

Two questions decide many orthopedic claims: did the event cause the condition, and was the surgery necessary. Both are answered from the documented evidence, with the limits of that evidence stated plainly.

Definition

Causation and surgical necessity review is an evidence-based analysis of whether a reported mechanism accounts for the orthopedic findings, and whether the treatment performed or proposed is medically reasonable and necessary given those findings.

At a glance

Format
Records-based; examination optional
Scope
Shoulder, knee, hip, sports injuries, trauma
Geography
Illinois and out-of-state matters
Turnaround
Typically 3–7 business days

How causation is analyzed

Causation analysis begins with the reported mechanism and asks whether the forces described are capable of producing the documented injury pattern. It then examines the symptom timeline, the initial clinical documentation, the imaging findings and any evidence of the pre-incident baseline.

Where a pre-existing degenerative condition is present, the analysis separates the condition itself from any aggravation attributable to the event, and states whether that aggravation is temporary or permanent.

  • Biomechanical plausibility of the reported mechanism
  • Timing and consistency of documented symptoms
  • Acute imaging findings versus chronic degenerative change
  • Pre-incident records establishing baseline function
  • Alternative explanations supported by the record

How surgical necessity is assessed

A surgical necessity review evaluates whether the indication for the procedure is documented: symptoms and functional limitation, corroborating examination findings, imaging that matches the clinical picture, and an adequate trial of appropriate non-operative treatment where that is the standard approach.

It also addresses whether the specific procedure performed or proposed matches the pathology identified, and whether the operative findings are consistent with the pre-operative rationale.

  • Documented failure of appropriate conservative care
  • Concordance of symptoms, examination and imaging
  • Whether the procedure addresses the identified pathology
  • Consistency of operative findings with pre-operative indications
  • Whether additional procedures performed were independently indicated

Who requests these opinions

Carriers and administrators evaluating treatment authorization or exposure, defense and plaintiff counsel testing the medical basis of a claim, and employers in work-injury matters where an acute event competes with a degenerative explanation.

Work product

A written report stating the materials reviewed, the analysis, and a clearly framed opinion on each question, including an express statement where the record is insufficient to support a conclusion. Deposition testimony is available on opinions rendered.

Common questions

What is an orthopedic causation opinion?

An opinion, stated to a reasonable degree of medical certainty, on whether a described event caused, aggravated or is unrelated to the orthopedic condition documented in the medical record.

What is a surgical necessity review?

An assessment of whether a performed or proposed orthopedic procedure is supported by the documented symptoms, examination findings, imaging and response to conservative treatment.

Can these reviews be done without an examination?

Yes. Causation and surgical necessity questions are usually answerable from the records, imaging and operative documentation.

Are standard-of-care opinions offered?

Standard-of-care opinions are considered where the care at issue falls within Dr. Horner's areas of orthopedic training and active practice. Matters outside that scope are declined.

Request a case review

Submit preliminary case information and the requested service. Reports are typically returned within 3–7 business days of receiving complete materials; unusually large record sets may take longer.

Submitting an inquiry does not create an attorney-client relationship, a physician-patient relationship, or an expert engagement. Independent medical examinations and record reviews are performed for the requesting party and do not constitute medical treatment. Do not transmit confidential medical records or protected health information through an unsecured form or email; records are exchanged after engagement through an appropriate secure process.

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