Anterior Cruciate Ligament (ACL) Tear Physical Therapy
OneEssential offers professional rehabilitation training for patients with anterior cruciate ligament tears and sprains. It is important to undergo examination and treatment as soon as possible after injury and surgery. This approach not only alleviates symptoms and accelerates healing but also helps prevent the worsening of injuries due to premature participation in high-intensity activities, and even re-injury. We also have extensive experience in preoperative physical therapy and non-surgical treatments. Feel free to contact us for inquiries.
What is the Anterior Cruciate Ligament (ACL)? What Are the Effects of a Tear?
The Anterior Cruciate Ligament (ACL) is a strong collagen ligament within the knee that connects the femur (thigh bone) to the tibia (shin bone). It is one of the main ligaments of the knee joint. The ACL is composed of two bundles of fibers that control forward and backward movements as well as rotational movements, maintaining the stability and flexibility of the knee during complex actions such as sprinting, sudden stops and turns, and jumping. Many sports frequently involve these types of movements, thereby increasing the risk of injury. For example, in basketball, studies have shown that 6.4% of sports-related knee injury cases involve ACL tears.
An ACL tear can lead to knee joint inflammation, presenting symptoms such as redness, swelling, and pain. Compared to individuals with general knee pain, those with an ACL injury may experience more pronounced symptoms, such as knee instability. This can manifest as a feeling of weakness when walking or climbing stairs, and even re-injuring the knee during simple daily activities.
However, not all cases present with obvious symptoms, and not everyone requires ACL reconstruction surgery. Factors such as age, athletic habits, and the severity of symptoms need to be considered. It is recommended to discuss these factors in detail with a doctor and physical therapist.
Causes of Anterior Cruciate Ligament (ACL) Tears
Seventy percent of ACL tear cases are non-contact injuries, such as:
- Rapid Changes in Direction During Sports: Quickly altering direction while playing can strain the ACL.
- Decelerating During a Sprint: Slowing down abruptly while sprinting puts stress on the ligament.
- Overextending the Lower Limbs After Jumping or Landing Abruptly: Excessive extension or awkward landings can lead to twisting injuries upon landing.
- Performing Rotational Forceful Movements: Actions like shot putting that involve rotational force can increase the risk of tearing the ACL.
Other Risk Factors and Causes:
- Intense Collisions During Sports: High-impact collisions can directly damage the ACL.
- Previous ACL Injuries Within Two Years: A history of ACL injuries increases the likelihood of subsequent tears.
- Athletes in Poor Condition Due to Fatigue, Insufficient Rest, or Lack of Warm-Up: Fatigue and inadequate preparation can compromise ligament stability.
- Accidental Impacts Such as Car Accidents and Slips or Falls: Traumatic events outside of sports activities can result in ACL tears.
- Weaker Neuromuscular Control: Poor coordination and muscle strength can make the ACL more susceptible to injury.
- Environmental Factors Such as the Quality of the Playing Surface: Uneven or poor-quality surfaces can contribute to instability and injury.
- Female Athletes: Women have a higher risk of ACL injuries than men due to differences in body structure and hormonal influences.
Common Symptoms of Anterior Cruciate Ligament (ACL) Tears
- A Sudden “Pop” Sound in the Knee at the Moment of Injury: Many individuals hear or feel a distinct popping sensation when the ACL is torn.
- Severe Pain: Intense pain typically occurs immediately following the injury.
- Rapid Swelling: The knee may swell quickly within a short period after the injury.
- Limited Mobility: Difficulty in fully bending or straightening the knee, restricting normal movement.
- Instability While Moving: A feeling of the knee giving way or weakness in the leg during movement.
- Decreased Muscle Strength and Coordination: Reduced muscle power and impaired coordination around the injured knee.
Rehabilitation Process After Anterior Cruciate Ligament (ACL) Reconstruction Surgery
The rehabilitation plan following Anterior Cruciate Ligament (ACL) Reconstruction surgery varies depending on the severity of the injury, the surgical technique used, the individual’s recovery speed, and their desired athletic goals. At OneEssential, our professional physical therapists provide personalized one-on-one treatment and training tailored to your specific needs. This approach effectively enhances post-surgical mobility while reducing the risk of re-injury. We aim to share some clinical insights here to build your trust in our professional expertise.
Initial Post-Surgery Phase (0-6 Weeks):
During the wound healing period, rest and symptom management are the primary goals.
- Pain Management: Implement treatments to alleviate pain.
- Reduction of Swelling and Inflammatory Response: Utilize methods to decrease swelling and inflammation.
- Gradual Restoration of Knee Joint Range of Motion: Slowly increase the knee's range of motion, aiming to fully straighten the knee as soon as possible.
- Early Restoration of Quadriceps Control: Regain control of the quadriceps muscles promptly.
- Gait Training: Train to improve walking patterns and ensure stable movement.
Intermediate Rehabilitation Training (6-12 Weeks):
During this phase, treatment and symptom management continue, with an emphasis on strengthening muscles and restoring joint stability.
- Pain Management: Continue treatments to alleviate pain.
- Reduction of Swelling and Inflammatory Response: Utilize methods to decrease swelling and inflammation.
- Stretching the Joint to Achieve Full Flexion and Extension: Work on increasing the knee's range of motion to fully bend and straighten.
- Strengthening the Quadriceps and Hamstring Muscles: Focus on building strength in the front thigh (quadriceps) and back thigh (hamstrings) muscles.
- Balance and Coordination Training: Engage in exercises that improve balance and coordination.
- Increased Single-Leg Stability Training: Perform more single-leg exercises to enhance knee stability and support.
Advanced Rehabilitation Training (3-6 Months):
In this phase, the training intensity and complexity are gradually increased based on the patient's activity performance and symptoms such as pain and swelling. Advanced functional training is incorporated with the goal of regaining athletic abilities.
- Lower Limb Strength Training: Focus on strengthening the muscles in the legs to support knee stability and overall lower body strength.
- Running: Begin running exercises to improve endurance, mobility, and cardiovascular fitness.
- Jumping: Engage in jumping activities to enhance power, agility, and explosive strength.
- Landing Techniques: Practice proper landing techniques to minimize impact and reduce the risk of re-injury.
- Explosive Power Training: Develop explosive strength through exercises that enhance quick, powerful movements essential for athletic performance.
Return to Play Training (After 6 Months):
In this phase, we design training programs tailored to the patient's specific sports activities and goals, ensuring a safe return to the playing field. Functional assessments and performance evaluations are used to monitor the athlete's recovery progress, establish appropriate exercise intensities and guidelines, and guide patients to gradually participate in team training and individual practice.
At this stage, athletes are generally able to complete most sports training, but they still need to wait at least nine months post-surgery before truly participating in competitions. It is also recommended to carefully schedule competitions and maintain regular training habits during the first two high-risk years after surgery to avoid re-injuring the joint.
Client's Reviews
在 OneEssential 進行了為期 10 週的前十字韌帶(ACL)回歸運動訓練。他非常專業,根據我的身體弱點量身制定了訓練課程。在課程結束後,他還為我制定了一個詳細且更新的訓練計劃,我一直按照計劃進行訓練。我強烈推薦 OneEssential 給運動愛好者以及任何需要物理治療的人! (翻譯評論)

左膝手術後做做物理治療 治療師詳細分析康復進度及需鍛鍊的部份 有效針對部位盡早康復及如以往一樣做運動

在 OneEssential 進行了為期 10 週的前十字韌帶(ACL)回歸運動訓練。他非常專業,根據我的身體弱點量身制定了訓練課程。在課程結束後,他還為我制定了一個詳細且更新的訓練計劃,我一直按照計劃進行訓練。我強烈推薦 OneEssential 給運動愛好者以及任何需要物理治療的人! (翻譯評論)

左膝手術後做做物理治療 治療師詳細分析康復進度及需鍛鍊的部份 有效針對部位盡早康復及如以往一樣做運動

呢度啲物理治療師好有耐性去聽你遇到既問題,而且好樂意去解答你既提問。
之前患左jumper knee(跳躍膝),呢度既物理治療師不論由最開頭急性處理,再到復康運動,再到用正確嘅心態去處理傷患都非常專業。
當時患jumper knee,臏骨下既韌帶撕裂,開頭物理治療同我做急性處理;消炎,放鬆肌肉。後黎就開始煅練返下肢既基本肌力。到最後加入一啲return to sport既運動。全個階段都跟得好足,好專業。
感謝我既物理治療師💯
墨水唔多,不過絕對推介有傷患既朋友黎OneEssential!!!
On the recommendation of my coach, legendary trail-runner Stone Tsang, I went to Alan for my ankle and knee injuries. In our very first consultation, he quickly and accurately identified the causes of my pain: Achilles tendinitis in my left ankle and a ruptured Baker’s cyst in my right knee.
The combination of acupuncture and shockwave therapy was highly effective, and the exercises Alan prescribed were extremely helpful. Thanks to his treatment and guidance, more than 90% of my pain disappeared after only 3 sessions. I was able to start regular trail training with Stone sir 1.5 months later. Despite inadequate (less-than-2-months) training due to my earlier injuries, I still managed to complete a 100km ultra trail-running race (TNF100) just 3.5 months after finishing my physio sessions with Alan.
講解清楚 專業分析邊個位置出現問題
之後會針對問題做治療
做完治療仲有一系列嘅exercise示範 可以返屋企自己練習
試過幾次都好滿意
已介紹家人朋友!
Diagnosing Anterior Cruciate Ligament (ACL) Tears
The gold standard for diagnosing an anterior cruciate ligament tear is undergoing a Magnetic Resonance Imaging (MRI) scan. If you’ve been injured and wish to understand the extent of your injury, you can consult with a doctor and a physical therapist. After a clinical examination and medical history review, the doctor can refer the patient for further imaging tests to confirm the severity of the ACL injury.
One-on-One Consultation
Anterior cruciate ligament tears are among the common sports-related knee injuries. Physical therapists will assess the movements and scenarios during which the injury occurred to determine the possible structures involved. They will also analyze the potential causes of the injury with you, such as a congested competition schedule leading to muscle fatigue and inability to support rapid directional changes during sports. Understanding these factors can significantly aid in rehabilitation and injury prevention.
Clinical Examination
In addition to medical tests, clinical examinations are an effective method for assessing ACL injuries. Physical therapists will perform various movement and area tests, observing the location of pain to determine your condition. These may include:
- Specific Tests such as the Lachman Test: A maneuver used to evaluate the integrity of the ACL.
- Knee Joint Range of Motion Assessment: Measuring the extent to which the knee can bend and straighten.
- Muscle Strength Testing: Evaluating the strength of the muscles surrounding the knee.
- Palpation: Physically feeling the knee to identify areas of tenderness or abnormality.
- Peripheral Joint and Fascia Assessment: Checking the surrounding joints and fascia for additional issues.
Medical Testing
Magnetic Resonance Imaging (MRI) is the most commonly used and reliable imaging tool for differentiating injured structures and assessing the severity of the injury. Typically, an MRI is scheduled after the consultation and clinical examination to provide a detailed view of the ACL and surrounding tissues.
Why Choose OneEssential's Anterior Cruciate Ligament (ACL) Physical Therapy?
One-on-One Treatment for ACL Tears
We develop personalized physical therapy and rehabilitation plans based on your athletic level and goals, accompanied by professional physical therapists throughout the entire treatment process. We are dedicated to addressing the underlying causes of ACL tears, helping you restore your optimal performance.
One-Stop Prevention of ACL Tears
Whether it's pre- and post-surgery rehabilitation training or opting for conservative treatment, OneEssential's experienced team of physical therapists provides comprehensive support. During the acute phase, we help alleviate your symptoms, guide you back to the playing field, and teach you how to prevent future injuries.
Professional and Reliable
Leveraging medical knowledge and clinical experience, we offer reliable rehabilitation guidance. By referencing the latest literature, we establish objective benchmarks for your post-surgery rehabilitation training, ensuring you can safely undergo the recovery process without worrying about re-injuring yourself during treatment.
How Does OneEssential Treat Your Anterior Cruciate Ligament (ACL) Injuries?

Focused Shockwave Therapy
Using “electroacoustic shockwave” technology, stable high-energy shockwaves are directed into the area affected by the ACL tear. This treatment alleviates joint discomfort and penetrates deep into the injured structures, stimulating cellular self-repair and reducing pain.

High-Energy Laser Therapy
High-intensity laser therapy employs optical principles to stimulate local blood circulation while accelerating lymphatic return in the injured knee joint. This method effectively reduces swelling and inflammatory responses, making it particularly suitable for the initial stages post-injury and post-surgery.

Neuromuscular Electrical Stimulation
Neuromuscular electrical stimulation uses mild electrical currents to stimulate neurons within the muscles, causing passive muscle contractions. In the early stages following ACL reconstruction surgery, this therapy helps activate the quadriceps muscles, improving gait and overall mobility.

Rehabilitation Training
Rehabilitation training is the most crucial treatment method following an ACL injury. Restoring the normal function of the joints and muscles is essential for a complete recovery from the injury. Physical therapists adjust the training intensity and movements based on your capabilities at different stages post-surgery, assisting you in regaining your athletic performance.
Cure ACL Tears with the Best Physical Therapy
The rehabilitation process following Anterior Cruciate Ligament (ACL) reconstruction surgery is quite lengthy. Effective physical therapy can help patients restore knee joint function more quickly and reduce the risk of re-injury. OneEssential can plan the entire treatment process with you before surgery, allowing for a seamless transition into rehabilitation therapy post-surgery, thereby avoiding any complications.
If you wish to have a preliminary consultation, please fill out the form below. Our physical therapists will assess your current condition and provide you with the most professional advice.
Frequently Asked Questions about Cruciate Ligament Tears
Traditionally, the medical community has widely believed that the anterior cruciate ligament (ACL) has a low capacity for self-repair, making reconstruction surgery the most common treatment option. However, in recent years, numerous studies and clinical reports have challenged this theory, indicating that many patients undergoing non-surgical treatments show evidence of successful healing on MRI scans three to six months after injury.
Moreover, the posterior cruciate ligament (PCL) has an even higher chance of healing compared to the ACL, and tears in the PCL have less impact on joint function. Therefore, reconstruction surgery is generally not chosen for PCL tears.
After a cruciate ligament tear, there is an acute inflammatory phase lasting approximately two weeks. During this period, daily activities such as walking and climbing stairs are significantly affected. However, as the swelling and pain gradually subside, patients are able to walk normally.
Nonetheless, some patients may experience knee instability and an inability to exercise properly. Even slow jogging carries a risk of re-injury. Such patients should remain patient, undergo physical therapy first, and only resume exercise afterwards to avoid worsening the injury.
It is recommended to wear a knee brace during the initial period after injury and surgery to reduce joint load and decrease the risk of re-injury. Wearing a brace generally makes it easier to apply force, alleviates swelling and pain caused by the cruciate ligament tear, and addresses joint instability issues. The type of knee brace will depend on the severity of the injury and the patient's symptoms, which should be determined after an evaluation by a physical therapist.
According to research, the probability of a cruciate ligament re-injury within two years after reconstruction surgery is approximately 6%, and about 12% within five years.
Therefore, it is essential to understand the underlying issues that may lead to injury, such as muscle strength, balance, neuromuscular control, or inadequate techniques for sudden changes in direction and stopping. By addressing these factors through targeted training, the risk of injury can be reduced. Additionally, establishing good training habits and improving specific areas based on the sport and individual weaknesses are crucial for long-term joint health protection.
Frequently Asked Questions about Physical Therapy for Cruciate Ligament Tears
This is a very common question in clinical settings. In fact, the choice of treatment method depends on various factors:
- Age: Older patients or those with slower physical recovery may not be suitable candidates for surgical treatment.
- Level of Activity: Patients who do not regularly participate in contact or high-intensity sports may not require ligament reconstruction.
- Sports Habits and Time Commitment
- Whether the Injury Involves Other Structural Damages, Such as the Meniscus
- Joint Stability and Function After Injury
We recommend that patients discuss their long-term goals and other considerations in detail with their doctors and physical therapists before deciding on the final treatment method. Current literature indicates that patients do not necessarily need to undergo reconstruction surgery immediately after an injury. Instead, they should wait for the joint to reduce swelling and regain mobility, allowing them to observe their symptoms before deciding on the next step in treatment. Our physical therapists can provide professional advice at different stages of the recovery process.
As long as you receive comprehensive physical therapy services, progressing step-by-step from early injury treatment to later-stage athletic training, patients can fully restore their normal activity levels.
However, athletic performance involves other factors such as psychological stress and activity level. In reality, patients need to diligently work on their rehabilitation and patiently allow their bodies to gradually adapt to the intensity of competition. Otherwise, re-injury and a decline in athletic performance are easily possible. It is recommended to communicate with your physical therapist to specifically address obstacles encountered during sports participation, solve problems one by one, and gradually regain your athletic condition.
OneEssential's pre- and post-surgery physical therapy consultation fee is $1,400 for 60 minutes. This fee includes all examinations and treatments, and the service is fully managed by registered physical therapists. We offer one-on-one treatment and training, enabling you to address symptoms and improve athletic performance in a one-stop manner, gradually restoring your athletic abilities.


