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When do you need a scan for a muscle or joint problem?

Written by · Clinical Director and Sports Therapist

Person holding an anatomical model of the spine

When pain persists, it is understandable to want a picture of what is happening. Imaging can answer important questions, but the useful question is not simply whether a scan is available. It is what the result would help a clinician decide.

This guide explains questions to ask, not rules for deciding independently that you do or do not need imaging.

What can an assessment establish first?
Your history and examination provide context for symptoms and function. Tell the clinician about an injury, health changes, neurological symptoms and the activities affected. Those findings help determine whether imaging, another investigation or a different referral is appropriate.Bring previous reports if you have them, including when and why the investigation was performed. A scan from an earlier episode does not automatically explain a new problem.

Does every painful joint need a scan?

No general rule applies to every condition. For example, NICE advises against routine imaging for low back pain in a non-specialist setting, and recommends specialist imaging when the result is likely to change management. That specific guidance should not be turned into a rule that scans are never needed.

What question would the scan answer?
Ask what the clinician is investigating and how a result could affect the next step. This might involve checking a suspected injury or clarifying an uncertain diagnosis. The appropriate test depends on the question; different types of imaging are not interchangeable.

Can a scan explain every symptom?
A report needs interpretation alongside your symptoms and examination. Ask which findings are relevant to the problem being treated and what remains uncertain. Avoid making activity decisions from an isolated phrase in a report without discussing what it means.

What if symptoms change while I am waiting?

Ask who to contact and what changes need urgent attention. A significant new injury, new weakness or loss of feeling, or severe and rapidly worsening symptoms may need prompt reassessment rather than waiting for a routine appointment.

For back pain, new bladder or bowel changes, loss of feeling around the genitals or anus, or symptoms in both legs require emergency assessment. A scan request already being in progress is not a reason to delay urgent help.

Prepare your questions

  • What are we trying to find out?
  • Would the result change the plan?
  • What should I do while waiting?
  • Who will explain the report and next steps?

For a non-urgent musculoskeletal enquiry, contact The Recovery Room. Decisions about investigations and referral follow assessment; this article does not promise a particular scan or direct access to one.

Sources and further reading

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