If you've injured your knee playing footy, developed persistent shoulder pain while trimming your hedges, or experienced a sudden episode of back pain, one of your first questions might be: do I need a scan?
Medical imaging, including X-rays, ultrasound, CT scans and MRI scans, can play an important role in diagnosing musculoskeletal injuries. However, imaging isn't always necessary, and having a scan doesn't automatically mean you'll receive a more accurate diagnosis or recover faster.
At Physio Co. Ballarat, we believe the best approach is to assess your injury thoroughly, identify what may be causing your symptoms, and determine whether imaging is likely to change your treatment or management.
When Is Imaging Appropriate?
When is imaging appropriate?
In physiotherapy, imaging is useful in situations when:
- Significant ligament or tendon injury is suspected.
These can include:
- Anterior cruciate ligament rupture
- Achilles tendon rupture
- Acute rotator cuff tear
- Hamstring tendon tear
- A fracture is suspected.
Common examples we see in clinic are:
- Acute ankle injury where there is an inability to weight bear
- Fall onto outstretched hand followed by significant wrist pain, swelling and tenderness
- Direct blow to bone during contact sport
- When symptoms are not improving as expected
Most uncomplicated musculoskeletal conditions resolve with a combination of appropriate loading and treatment as indicated.
However, if pain persists, function deteriorates or progress is significantly slower than expected. Imaging may be indicated to rule out any other pathologies that could be causing your pain.
- When the result is expected to alter clinical management
It is important to consider this when thinking about having a scan. At this point, having a scan can potentially mean that a potentially invasive intervention – for example, an injection or surgery – is being looked at as the next step. Is this something that you are open to proceeding with?
Can Imaging Sometimes Be Misleading?
Imaging is a valuable diagnostic tool, but it can only identify structural changes in the area of interest. It cannot identify pain.
A scan can identify structural changes that are unrelated to your current symptoms. Conversely, some injuries may not be clearly visible on an initial X-ray or may require a different imaging method to investigate adequately.
For example, an MRI might identify a disc bulge in someone experiencing back pain. However, that alone cannot establish that the disc bulge is causing your pain.
Many people without back pain have disc bulges, degenerative changes or other findings on imaging– research suggests that up to 30% of people aged 20 years old and up to 69% of people aged 60 years old that have no back pain whatsoever will have a disc bulge on imaging.
Your symptoms, examination findings, medical history, and response to treatment all contribute to understanding the clinical significance of an imaging result.
This is why a scan should support a clinical assessment rather than replace it.
Unnecessary imaging can also lead to additional costs, further investigations and concern about findings that may not be clinically important.
How Does a Physiotherapist Decide Whether You Need Imaging?
At Physio Co. Ballarat, the decision to recommend further investigation should be guided by your individual presentation.
A comprehensive musculoskeletal assessment typically involves several steps.
- Understanding your injury
We discuss how the injury occurred, when your symptoms began, what aggravates or relieves them, and how they affect your everyday activities or sporting performance.
- Performing a physical examination
Depending on your symptoms, this may include assessing movement, strength, tenderness to palpation, joint range of motion and/or neurological examination.
- Identifying potential warning signs
We consider whether your symptoms suggest a fracture, significant tissue injury, neurological signs or another systemic condition requiring further medical investigation.
- Determining whether imaging will change your care
If a scan is unlikely to alter the diagnosis, treatment, or rehabilitation plan, it may not be necessary. If imaging could clarify an important diagnosis or guide further management, we can discuss the appropriate next step.
What If I Already Had a Scan?
If you've already undergone an X-ray, ultrasound or MRI, the findings can form part of your physiotherapy assessment.
Your physiotherapist can discuss how the reported findings relate to your symptoms, movement, and functional limitations, and how they may influence your rehabilitation.
An imaging report should always be interpreted in the context of your clinical presentation. Not every abnormality requires treatment, and not every injury requires surgery.
In many cases, a structured rehabilitation program focusing on appropriate loading, strength, mobility, and gradual return to activity remains central to recovery.
Do You Need an X-ray or MRI For Your Injury?
The answer depends on the nature of your injury, your symptoms and what we find during assessment.
Imaging can be extremely valuable when used for the right reasons. However, for many common muscle, joint and spinal conditions, a thorough clinical assessment provides enough information for a successful treatment plan.
At Physio Co. Ballarat, our focus is on thorough assessment, individualised rehabilitation and helping you return to the activities that matter to you.
If you're unsure whether your injury requires imaging, contact Physio Co. Ballarat to discuss an appropriate assessment and management plan.
