Knee ligament injuries are common in football, basketball, and other sports that involve pivoting, landing, and sudden changes of direction. They also occur after falls and road traffic accidents. The main structures involved are the anterior cruciate ligament (ACL), the posterior cruciate ligament (PCL), the collateral ligaments (MCL and LCL), and the meniscus.
The ACL controls forward movement and rotation of the shin bone. It is typically injured in a non-contact twisting or landing movement; many patients feel or hear a pop, followed by swelling within hours. Later, the knee may give way when turning or changing direction.
The PCL is often injured by a direct blow to the front of the shin — for example a dashboard injury in a car accident or a fall onto a bent knee. Symptoms can be subtler than with an ACL tear, but combined PCL injuries can significantly affect knee stability.
The MCL on the inner side and the LCL on the outer side resist side-to-side forces. Many isolated MCL injuries heal well with bracing and rehabilitation; LCL and posterolateral corner injuries are less forgiving and are more often assessed for surgery, particularly when combined with cruciate tears.
The meniscus is the C-shaped cartilage cushion between the thigh and shin bones. Tears may cause pain along the joint line, swelling, catching, or locking. A knee that is locked and cannot fully straighten after an injury needs prompt assessment, because a displaced meniscus tear may need early treatment.
Seek assessment if you have swelling after a twisting injury, episodes of the knee giving way, inability to fully straighten or bend the knee, pain that prevents return to sport, or a knee that feels loose. When several ligaments are injured together — multiligament injuries — urgent consultant assessment is needed.
At OSclinic in Amman, Dr Ala' Hawa — fellowship-trained in knee sports medicine at Mater Hospital, University of Sydney — examines ligament stability with specific tests, checks the meniscus, and compares with the other knee. MRI is often requested to confirm the injury pattern and look for associated cartilage or meniscus damage.
Not every ligament injury needs surgery. The decision depends on which structures are injured, how stable the knee is, your age, your activity level, and your goals. Some patients with an ACL tear who do not play pivoting sports cope well with structured rehabilitation; others experience recurrent instability that risks further damage to the meniscus and cartilage.
When surgery is appropriate, ACL reconstruction replaces the torn ligament with a graft and is usually performed arthroscopically. Graft choice, timing, and whether the meniscus can be repaired rather than trimmed are discussed in advance. Preserving the meniscus where possible is an important goal for long-term knee health.
Prehabilitation — reducing swelling, restoring full straightening, and building quadriceps strength before surgery — often makes recovery smoother. After surgery, rehabilitation progresses through phases: protecting the reconstruction, restoring movement, strengthening, and then running, agility, and sport-specific training.
Return to sport is based on criteria rather than the calendar alone: strength, control, confidence, and functional testing. Returning too early increases the risk of re-injury, so milestones are agreed between the surgeon, the physiotherapist, and the patient.
If you have had a twisting knee injury, swelling, or episodes of giving way, an early assessment helps protect the knee and plan your return to activity. Contact OSclinic Amman by phone or WhatsApp, or use the contact form, to book a sports knee consultation, and bring any MRI or X-rays you have.
Educational information only — not a diagnosis or treatment plan. Decisions depend on examination and imaging. For emergencies, go to hospital urgently.