A torn ACL (anterior cruciate ligament) is one of the most common knee injuries, particularly for athletes and active individuals. Whether you sustained a torn ligament during a football tackle or twisted your knee stepping off a curb, receiving immediate medical attention is crucial.
If you’re experiencing knee pain and looking for Dallas based care for ACL injuries, board-certified orthopedic specialist Dr. Steven J. Thornton provides advanced treatment options. With subspecialty training in sports medicine and expertise in minimally invasive surgical procedures, Dr. Thornton is a trusted Dallas knee surgeon for ACL tear treatment and ACL reconstruction surgery.
Understanding ACL Injuries and Knee Anatomy
The anterior cruciate ligament ACL is one of the four primary ligaments that help stabilize the knee joint. It connects the thigh bone (femur) to the shin bone (tibia), preventing excessive forward movement of the tibia and providing rotational stability.
The ACL works with the posterior cruciate, medial collateral, and lateral collateral ligaments. These are the four ligaments essential to proper knee anatomy. These four major ligaments support healthy knee function during movement and load-bearing activities.
When an ACL tear occurs, it often results in knee instability and may be accompanied by injury to other knee structures, such as the articular cartilage or meniscus.
Causes and Symptoms of ACL Injuries
ACL injuries, commonly referred to as sports injuries, can also affect non-athletes. Most ACL injuries happen during:
- Sudden stops, cutting, or changing direction
- Pivoting on a planted foot
- Awkward landings from jumps
Female athletes are particularly at risk due to differences in neuromuscular control and knee anatomy.
Common signs of an ACL injury include:
- A loud popping sound or sensation at the time of injury
- Immediate swelling within a few hours
- Knee pain and difficulty bearing weight
- A feeling of the knee “giving out”
- Loss of range of motion
If you’re experiencing these symptoms, you may have sustained a complete tear or partial tear. Immediate medical attention is vital for accurate diagnosis.
Diagnosis of ACL Injuries
Dr. Thornton uses a thorough physical examination to assess the injured knee. Key orthopedic tests like the Lachman test and pivot shift test are performed to check for knee instability. To confirm the diagnosis and evaluate injury to other ligaments or knee structures, imaging studies may include:
- MRI scans to detect soft tissue injuries like a torn ACL or damage to articular cartilage
- X-rays to rule out bone involvement in the knee
- Diagnostic arthroscopy is needed to evaluate internal knee anatomy directly
A proper diagnosis done by a Dallas knee surgeon helps determine whether non-surgical or surgical treatments best suit the patient’s condition.
Treatment Options for ACL Injuries
Depending on the extent of the ACL tear and a patient’s goals, Dr. Thornton offers several treatment options:
Non-Surgical Management
Some anterior cruciate ligament injuries do not require surgery. For a partial tear or less active individuals, a shoulder doctor may offer conservative options, such as:
- Bracing and physical therapy to rebuild knee strength and muscular strength
- Decrease swelling through medication and guided rehabilitation
- Physical conditioning and neuromuscular control training to support long-term stability
ACL Reconstruction Surgery
For patients with a complete tear or those who want to return to an active lifestyle, ACL reconstruction is often recommended.
Dr. Thornton specializes in minimally invasive ACL reconstruction using small incisions and techniques that protect surrounding tissues. Depending on the patient’s needs, he may use grafts from the patellar tendon, hamstring tendon, or donor tissue. ACL surgery can also address damage to other ligaments and support structures if needed.
His expertise in ACL reconstruction surgery ensures optimal outcomes with reduced downtime and faster recovery.
Why Choose Dr. Steven J. Thornton for Dallas-Based Care for ACL Injuries

Dr. Thornton brings together extensive experience, patient-focused care, and state-of-the-art techniques. Here’s why patients across Dallas trust him for ACL tear treatment:
- Board-certified orthopedic surgeon with subspecialty certification in sports medicine
- Leader in minimally invasive surgical procedure techniques
- Member of the American Academy of Orthopaedic Surgeons and the American Orthopaedic Society of Sports Medicine
- Expert in managing anterior cruciate ligament injuries and other common knee injuries
- Focused on returning patients to a healthy knee and active lifestyle through comprehensive care
From diagnosis to recovery, Dr. Thornton offers personalized care that outpaces other orthopedic specialists in the Dallas area.
Local, Expert Care in Dallas
Dr. Thornton’s clinic provides Dallas-based care for ACL injuries that prioritizes efficiency, quality, and comfort. From high school athletes to adults looking to preserve joint health, his team delivers seamless support from evaluation through rehabilitation.
If you’re suffering from an injured knee or suspect a ligament injury, schedule a consultation to receive an accurate diagnosis and individualized treatment. Let Dr. Thornton help you restore strength, stability, and confidence in your knee joint.
