Claim For a Ligament Tear Misdiagnosed as a Sprain

Written by Tanya Waterworth, Digital Content Writer

About Our Legal Expert: This content is produced with oversight by Michael Jefferies, Managing Director who has over 30 years’ legal experience.

When a ‘Sprain’ Becomes Orthopaedic Negligence

A sprain and a ligament tear may feel similar in the early stages, but there is a significant difference and if you’ve been misdiagnosed, you may be entitled to claim for a ligament tear misdiagnosed as a sprain. Both are joint injuries and cause pain and swelling, but if a misdiagnosis causes avoidable harm, it may form the basis for an orthopaedic medical negligence claim.

Essentially a misdiagnosis is regarded as clinical negligence if the actions of the medical professional fell below the standard expected of a reasonably competent practitioner which result in further harm to the patient. So not every misdiagnosis will lead to claim.

What’s the Difference: Sprain vs Ligament Tear?

A ligament is a tough band of connective tissue that stabilises a joint by connecting one bone to another. When that ligament is injured, the severity is usually classified into either a sprain, partial tear or a full tear or rupture.

Basically, a sprain is a mild injury. On the other hand, a ligament tear, whether partial or full, is regarded as a more serious structural problem that often requires targeted treatment, imaging, and sometimes surgery.

Why the Distinction Matters Clinically

A sprain typically heals with rest, ice, compression, elevation, and physiotherapy. But a ligament tear may require:

• MRI imaging to assess severity
• Specialist orthopaedic review
• Bracing or immobilisation
• Structured rehabilitation
• Surgical repair in some cases

If a clinician labels a tear as a sprain, the patient may be advised to “walk it off,” return to sport too early, or rely on self‑care that is inadequate for the injury. In our experience, this is generally where problems begin.

How Ligament Tears May Be Misdiagnosed as Sprains

Misdiagnosis can often stem from an overlap in symptoms. This is because pain, swelling, bruising, and reduced movement appear in both injuries. But several clinical pitfalls may contribute to errors:

1. Failure to Take a Detailed History

A high‑impact twist, a popping sound, or immediate instability are red flags for a tear. If these details aren’t fully investigated, the clinician may underestimate the injury.

2. Inadequate Physical Examination

Ligament stability tests require skill and time. So, a rushed assessment can miss subtle signs of instability.

3. Over‑Reliance on X‑Rays

X‑rays show bones, not ligaments. Therefore, a normal X‑ray does not rule out a tear, yet some patients are discharged without further imaging.

4. Failure to Refer for MRI or Specialist Review

MRI is the gold standard for diagnosing ligament tears. When a clinician fails to escalate appropriately, the injury may remain hidden.

5. Assumptions Based on Age or Activity Level

Younger patients, athletes, or active adults may be assumed to have “simple sprains,” while older patients may be assumed to have degenerative issues. These assumptions can affect clinical judgement.

Consequences of Misdiagnosing a Ligament Tear

A misdiagnosis is not just a simple error as it can change the trajectory of recovery. Here we look at possible impact of a misdiagnosis:

Delayed Healing

A ligament tear left untreated may heal poorly or not at all.

Chronic Joint Instability

Patients often describe the joint “giving way,” especially in ankles and knees.

Increased Risk of Re‑Injury

A weakened ligament makes future injuries more likely.

Development of Arthritis

Long‑term instability can accelerate joint wear and tear.

More Invasive Treatment Later

A tear that could have been managed conservatively early on may later require reconstructive surgery.

These consequences are not inevitable, but if they happen because a clinician failed to diagnose the injury properly, you may have grounds for a negligence claim.

Would This Fall Under Orthopaedic Medical Negligence?

In the UK, a misdiagnosis can amount to medical negligence if the following key factors are present:

1. The clinician breached their duty of care: This means their actions fell below the standard expected of a reasonably competent practitioner. Examples include failing to examine the joint properly, failing to order appropriate imaging, or dismissing symptoms prematurely.

2. The breach caused avoidable harm: Not every misdiagnosis leads to a claim. The key question is whether the patient suffered harm that could have been avoided with correct diagnosis and treatment.

3. There is a clear link between the misdiagnosis and the harm: Here are some examples of further harm:

The ligament tear worsened due to lack of immobilisation

The patient developed chronic instability

Surgery became necessary because early treatment was missed

The patient lost mobility, work opportunities, or quality of life

Real‑life Example of a Tear Misdiagnosed as a Sprain

A 42‑year‑old woman twists her knee while stepping off a curb. She attends her local A&E, where the joint is swollen and painful. The examining clinician performs a brief assessment and concludes it is a simple sprain. She is advised to go home and rest, apply ice and take over‑the‑counter pain relief. No further imaging is arranged.

Over the next few weeks, her knee continues to give way and she struggles to walk without discomfort. When she eventually sees her GP, she is referred for an MRI scan. The scan reveals a tear that should have been identified earlier. Because of the delay, the tear has worsened and now requires surgery, followed by a lengthy period of physiotherapy. She is left with ongoing stiffness and reduced mobility that could potentially have been avoided with an earlier diagnosis.

In a situation like this, the failure to properly assess the injury or arrange appropriate imaging could amount to orthopaedic medical negligence, as the patient suffered avoidable harm due to the misdiagnosis.

What a Compensation Typically Covers

A successful claim may include compensation for pain and suffering, as well as financial losses such as lost wages.

The aim of compensation is to put the patient back, as far as possible, in the position they would have been in had the misdiagnosis not occurred.

FAQs: Negligence Claim for a Ligament Tear Misdiagnosed as a Sprain

Is every misdiagnosis automatically negligence?

No. A misdiagnosis is only regarded as negligence when the clinician’s actions fall below an acceptable standard and cause avoidable harm.

Do I need an MRI to prove a ligament tear was missed?

Not necessarily, but imaging often strengthens the evidence. Medical experts can also assess clinical notes, symptoms, and treatment history. Your solicitor will help you to gather this evidence.

How long do I have to bring a claim?

In most cases, you have three years from the date of injury or the date you first realised negligence may have occurred.

Can I claim if I returned to sport too early because of the misdiagnosis?

Yes, if the incorrect advice directly contributed to worsening the injury.

What if the clinician told me it was “just a sprain” but the pain never went away?

Persistent symptoms are a common sign of an undiagnosed tear. If the delay in diagnosis caused harm, contact a solicitor as early as possible to have your case assessed.

Take The Next Step

A ligament tear misdiagnosed can potentially derail recovery, limit mobility, and affect your long‑term joint health. If that misdiagnosis was a result of inadequate assessment or failure to follow clinical guidelines, it may amount to orthopaedic medical negligence.

We can guide you through the process of how to claim compensation and will give you the support and understanding you need at this difficult time. 

Call us at 0333 358 3034 for a free no-obligation chat or visit our Contact Us Page.

This blog is for informational purposes only and does not constitute legal or medical advice. Always consult with a medical professional and a qualified solicitor to understand your specific circumstances.