Understanding ACL Tears
The knee is one of the most important joints for stability, movement, and athletic performance. Within the knee, four major ligaments help maintain proper alignment and prevent excessive motion. One of the most essential is the Anterior Cruciate Ligament (ACL).
The ACL:
- Prevents the shinbone (tibia) from sliding forward
- Controls rotational stability
- Helps maintain proper knee alignment during cutting, pivoting, and landing movements
When the ACL is stretched or torn, knee stability is compromised, often leading to pain, difficulty with sports movements, and a feeling that the knee may “give way.”
At Powell Orthopedics, we specialize in precise diagnosis, comprehensive non-surgical management, and collaborative care, helping patients restore knee function safely and effectively.
(We do not perform total knee replacements.)
How ACL Tears Occur
ACL tears can occur:
- During sports involving cutting or pivoting
- When landing awkwardly from a jump
- Due to sudden deceleration
- From direct contact or collision
- From twisting while the foot is planted
Most ACL injuries occur without contact.
Common sports associated with ACL injury include:
- Basketball
- Soccer
- Football
- Volleyball
- Skiing
- Gymnastics
ACL tears can affect athletes, active adults, workers, and even adolescents involved in physical activity.
Types of ACL Injuries
ACL injuries vary in severity:
Grade 1 — Mild Sprain
The ligament is stretched but not torn.
Symptoms are mild, and most patients recover with conservative care.
Grade 2 — Partial Tear
The ACL is damaged but not completely torn.
This is less common but may still cause instability.
Grade 3 — Complete Tear
The ligament is torn entirely.
This is the most common ACL injury and often requires structured rehabilitation and careful evaluation for stability needs.
Symptoms of an ACL Tear
Patients often describe:
At the moment of injury:
- A “pop” sound or sensation
- Sudden pain
- Knee giving out
- Immediate swelling (within hours)
After injury:
- Difficulty weight-bearing
- Instability when pivoting or turning
- Pain along the joint line
- Loss of full knee motion
- Feeling that the knee is “loose”
Not all ACL tears cause extreme pain — many patients notice instability more than soreness.
ACL Tear Diagnosis
Accurate diagnosis is critical for determining whether non-surgical or surgical care is appropriate.
1. Medical History Review
We assess:
- How the injury happened
- Immediate symptoms after injury
- Prior knee injuries
- Activity level and sport participation
2. Physical Examination
ACL-specific tests include:
- Lachman test
- Anterior drawer test
- Pivot-shift test
These maneuvers evaluate both the integrity of the ACL and overall knee stability.
3. Imaging Studies
- X-ray → Rules out fractures or bone injury
- MRI → Confirms ACL tearing, meniscus involvement, cartilage injury, or ligament damage
MRI is the gold standard for diagnosing ACL tears.
Non-Surgical Treatment for ACL Tears
Not all ACL tears require surgery.
Many patients — especially those who are not involved in pivot-heavy sports — can recover strength and knee function through comprehensive non-surgical management, which is the focus at Powell Orthopedics.
Non-surgical treatment may be right for you if:
- Your knee does not give way during normal activities
- You participate in low-impact sports
- You are older or less active
- You have a partial ACL tear
- You want to avoid surgery
- You can commit to structured physical therapy
Non-Surgical Treatment Components
1. Swelling Reduction & Early Mobilization
Immediately after injury:
- Ice
- Compression
- Elevation
- Guided early motion
These steps help protect knee cartilage and maintain mobility.
2. Physical Therapy (Core of Non-Surgical ACL Care)
Therapy focuses on:
- Regaining full knee motion
- Strengthening quadriceps, hamstrings, and hips
- Improving balance and neuromuscular control
- Correcting gait mechanics
- Restoring stability for daily and athletic movement
Phases of ACL Rehabilitation:
Phase 1: Reduce Pain & Swelling
- Gentle motion
- Swelling control
- Early activation of quadriceps
Phase 2: Restore Motion & Strength
- Progressive strengthening
- Balance training
- Flexibility work
Phase 3: Neuromuscular Control
- Single-leg training
- Landing mechanics
- Real-world functional movement
Phase 4: Advanced Strengthening
- Agility training
- Plyometrics (when appropriate)
- Interval jogging or low-impact sports
Phase 5: Return-to-Activity (Non-pivoting)
- Hiking
- Biking
- Swimming
- Strength training
- Controlled activity progression
3. Bracing Support
Athletic or activity-based bracing may:
- Improve knee stability
- Reduce “giving way” episodes
- Protect healing structures
Bracing is tailored individually.
4. Injection Therapy
In some cases:
- Corticosteroid injections reduce inflammation
- PRP (Platelet-Rich Plasma) supports tissue healing
These options depend on the extent of injury and surrounding tissue involvement.
When ACL Surgery Is Considered (General Overview)
Although Powell Orthopedics focuses on non-surgical ACL management, some patients may be referred for surgical consideration if they experience:
- Recurrent instability
- Difficulty performing daily movements
- Involvement in high-level pivoting sports
- Combined injuries (meniscus tears with mechanical locking)
- Failure of structured rehabilitation
Surgery reconstructs the torn ACL using a graft and aims to restore stability for high-demand activities.
If surgery becomes necessary, Powell Orthopedics guides patients through prehab, referral, and post-operative rehabilitation coordination.
Living With an ACL Tear: What to Expect
With proper rehab, many patients return to:
- Work
- Walking
- Hiking
- Cycling
- Strength training
- Recreational activity
Activities that may remain limited without surgery include:
- Competitive soccer
- Basketball
- Football
- Volleyball
- High-impact pivoting/cutting sports
Your activity goals determine your management plan.
Complications of Untreated Instability
If knee instability continues, patients may experience:
- Meniscus tears
- Cartilage wear
- Recurrent swelling
- Chronic pain
- Reduced athletic capacity
- Difficulty trusting the knee
Addressing instability early protects long-term joint health.
When to Seek Immediate Care
Seek prompt evaluation if you experience:
- Inability to bear weight
- Knee locking or stuck in one position
- Rapid worsening of swelling
- Numbness or tingling
- Redness or warmth suggesting infection (rare)
- Knee buckling during normal walking
Patient-Friendly Q&A
Can an ACL tear heal on its own?
The ACL does not typically “heal” by reconnecting — but many patients function well through strengthening and stability retraining.
How do I know if I need surgery?
You may need surgical evaluation if you have recurrent instability or plan to return to pivot-heavy sports.
Is walking with an ACL tear safe?
Yes — once swelling is controlled and motion is restored, most patients walk normally.
How long is recovery with non-surgical treatment?
3–6+ months depending on goals and participation in therapy.
Will my knee ever feel normal again?
Many patients regain excellent function with proper rehab.
Can strengthening muscles replace the ACL?
Strong muscles and neuromuscular control can compensate for ACL instability in many non-athletes.
Take the First Step Toward Knee Stability and Recovery
If you suspect an ACL tear, early evaluation prevents further damage and helps determine whether non-surgical management can restore full knee function.
Powell Orthopedics
1450 East Zion Rd., Suites 6 & 10
Fayetteville, AR 72703
Phone: (479) 582-4647
Website: powellorthopedics.com
Schedule Online: https://powellorthopedics.com/appointments/