A Deltoid Ligament Complex Sprain or Strain is an injury to the strong band of tissues on the inner side of the ankle that helps stabilise the joint. Unlike the more common lateral ankle sprains (on the outside of the ankle), deltoid ligament injuries are less frequent but often more serious, as the ligament complex is stronger and resists excessive inward (eversion) movement of the ankle.
Types of Deltoid Ligament Complex Sprains and Strains
Deltoid ligament injuries are usually classified based on severity:
Grade I (Mild): Small stretch or microscopic tearing of the ligament fibres, causing mild pain and swelling.
Grade II (Moderate): Partial tear of the ligament with more noticeable swelling, bruising, and difficulty walking.
Grade III (Severe): There is a complete rupture of the ligament, often associated with significant instability and sometimes fractures of the medial malleolus (inside ankle bone).
Mechanism of Injury
The mechanism of injury for most Deltoid Ligament Complex Sprains and Strains involves:
Eversion injury – the foot rolls outward while the leg turns inward.
Direct trauma – a force applied to the outside of the ankle can overstretch the inner ligament.
Sports-related stress – sudden changes in direction, jumping, or high-impact landings.
Because the deltoid ligament is strong, these injuries often occur alongside other ankle injuries, such as fractures or syndesmosis injuries.
Symptoms and Diagnosis
Common symptoms of deltoid ligament sprains include:
- Pain and tenderness along the inside of the ankle.
- Swelling and bruising on the medial (inner) ankle.
- Difficulty bearing weight or walking.
- A feeling of instability in more severe cases.
Diagnosis is made through:
Physical examination: Medical staff skilled in orthopaedics will assess swelling, tenderness, and ankle stability and take a full history of the injury and previous injuries.
Imaging: X-rays are used to check for fractures, and in more severe cases, MRI is used to assess the extent of ligament damage.
Treatment Approaches
Treatment for Deltoid Ligament Complex Sprains and Strains depends on severity:
- Mild sprains: Rest, ice, compression, elevation (RICE), short-term use of supportive bracing or taping, and gradual return to activity with physiotherapy.
- Moderate sprains: They may require a supportive boot or brace to protect healing tissues and a structured rehabilitation program.
- Severe sprains/tears: These sometimes require surgical repair or reconstruction, especially if they are associated with fractures or chronic ankle instability.
If surgery is required, the Access Ortho team will help arrange this.
The Access Ortho fracture clinic team will advise on the best treatment for your injury.
Prognosis
Most Deltoid Ligament Complex Sprains and Strains heal with appropriate care, but due to the strength and function of the ligament, recovery can take longer than for lateral ankle sprains.
- Mild injuries may recover in a few weeks.
- Moderate to severe injuries may require several months, especially if surgery is involved.
Early diagnosis and treatment help minimise and reduce the risk of chronic ankle instability or recurrent injuries.
Role of Access Ortho
At Access Ortho, we provide rapid assessment and treatment for ankle injuries, including deltoid ligament complex sprains and strains. Our team of Nurse Practitioners and Orthopaedic Surgeons will:
- Diagnose your injury promptly with access to local radiology for X-rays and scans.
- Provide tailored treatment plans including bracing, referral for physiotherapy, or surgical review when required.
- Ensure early recovery and safe return to sport or daily activity.
If you have sustained an ankle injury and are experiencing pain on the inside of your ankle, book an appointment at Access Ortho today for expert, affordable care.
Access Ortho has urgent care fracture clinics in Brisbane and Ipswich.