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Understanding SLAP Injuries
- 1 day ago
- 5 min read
Shoulder injuries can be confusing—especially when imaging reports mention terms like a SLAP tear. This injury involves a structure called the labrum, a ring of cartilage that helps stabilize the shoulder joint.
If you’ve recently been diagnosed with a SLAP injury, this blog will help explain what it means, how it happens, and what recovery typically looks like.
What Is a SLAP Injury?
A SLAP injury is a tear in the top part of the labrum in the shoulder. The shoulder is a ball-and-socket joint, where the ball at the top of the arm bone sits in a shallow socket on the shoulder blade. Around the rim of that socket is a ring of cartilage called the labrum, which helps deepen the socket and improve the stability of the joint.
A SLAP tear occurs when the top portion of this cartilage ring tears from front to back. The term SLAP stands for Superior Labrum Anterior to Posterior, which simply describes the location and direction of the tear across the top of the shoulder socket.
This area is also where the biceps tendon attaches to the shoulder, which is why people with a SLAP injury may experience pain in the front of the shoulder or upper arm in addition to deeper shoulder discomfort.
People with a SLAP tear may experience a variety of symptoms. These can vary depending on the severity of the injury, but commonly include:
Deep shoulder pain
Pain with overhead movements
Clicking, catching, or popping sensations in the shoulder
Reduced strength during lifting or throwing
Difficulty with overhead sports or activities
Some people also describe a general feeling that the shoulder is weaker or less stable than it used to be.
How Often Do SLAP Injuries Occur?
SLAP tears are a relatively common type of shoulder injury, particularly in individuals who regularly perform overhead movements in sport or work. Studies looking at shoulder surgeries have found that SLAP tears are present in roughly 5–38% of shoulder arthroscopy procedures, and they account for approximately 6–20% of all labral injuries.
However, it’s important to understand that not all SLAP tears cause symptoms. Some tears develop gradually with age and repeated use of the shoulder. These degenerative SLAP tears can sometimes appear on imaging scans even in people who have little to no shoulder pain.
Because of this, healthcare providers consider both clinical symptoms and imaging findings when determining whether a SLAP tear is truly the source of someone’s shoulder pain.
What Causes SLAP Tears?
SLAP tears can occur either from a single traumatic event or from repetitive stress placed on the shoulder over time. In many cases, the injury develops gradually due to repeated loading of the shoulder in overhead positions.
Traumatic injuries often involve a sudden force applied to the arm or shoulder. For example, falling onto an outstretched arm or trying to catch a heavy object can create a pulling force on the biceps tendon that stresses the labrum. In other cases, the injury may occur during sports or activities that involve powerful overhead movements.
Some of the most common mechanisms include:
Falling onto an outstretched arm
Catching or lifting a heavy object suddenly
A sudden pulling force on the arm
Direct impact to the shoulder
Repetitive stress is another major cause, especially in athletes or individuals whose work involves frequent overhead motion. Activities that repeatedly load the shoulder can gradually irritate and weaken the labrum.
Common activities associated with SLAP injuries include:
Throwing sports such as baseball or softball
Swimming
Tennis or volleyball
Overhead weightlifting
Jobs that require repetitive overhead work
Over time, repeated strain on the shoulder combined with small mechanical imbalances or muscle weakness can contribute to the development of a SLAP tear.
Treatment Options
Treatment for a SLAP tear depends on several factors, including the severity of symptoms, the individual’s activity level, and the specific type of tear identified. In many cases, treatment begins with conservative (non-surgical) management, as many people improve with structured rehabilitation.
Conservative treatment typically focuses on reducing irritation in the shoulder while improving strength and control around the joint. This may include modifying activities that aggravate the shoulder, particularly repetitive overhead movements or heavy lifting in the early stages of recovery.
In addition to physiotherapy, some individuals may benefit from other supportive treatments such as short-term anti-inflammatory medication or, in certain cases, a corticosteroid injection to help manage pain and inflammation.
Conservative treatment strategies often include:
Temporary modification of painful activities
Targeted physiotherapy exercises
Anti-inflammatory medications when recommended by a physician
Occasionally, a corticosteroid injection
If symptoms persist despite several months of rehabilitation, surgery may be considered. The most common surgical approach is arthroscopic SLAP repair, where the torn portion of the labrum is reattached to the socket using small anchors. In some cases, surgeons may instead perform a biceps tenodesis, which involves repositioning the attachment of the biceps tendon to reduce stress on the labrum. These procedures are typically performed using minimally invasive arthroscopic techniques.
Recovery and Healing Timeline
Recovery timelines for SLAP injuries vary depending on whether the injury is treated conservatively or surgically, as well as the individual’s activity level and overall shoulder health.
With conservative treatment, the early stages of rehabilitation focus on reducing pain and restoring comfortable movement. Gentle mobility exercises and gradual strengthening of the shoulder stabilizing muscles are typically introduced during the first several weeks.
As symptoms improve, rehabilitation progresses toward improving shoulder strength, control, and tolerance to load. Many people begin returning to most daily activities within 8–12 weeks, and may regain near-full function within 3–4 months, depending on the demands placed on the shoulder.
Recovery following surgery takes longer because the repaired tissue needs time to heal before the shoulder can be fully loaded again. Early rehabilitation usually involves protecting the repair with a sling and gradually restoring gentle motion.
A typical post-surgical progression may look like:
0–4–6 weeks: Sling protection and gentle passive movement
6–12 weeks: Gradual restoration of range of motion and early strengthening
3–4 months: Progressive strengthening and functional exercises
4–6 months: Return to most recreational activities
Athletes or individuals returning to high-level overhead activities may require 6–9 months of rehabilitation before fully returning to sport.
How Physiotherapy Can Help
Physiotherapy plays an important role in both non-surgical management and post-surgical rehabilitation of SLAP injuries. The goal of treatment is to reduce pain, improve shoulder stability, and restore efficient movement patterns so that the shoulder can tolerate daily activities and sport again.
Rehabilitation often focuses on strengthening the muscles that support and stabilize the shoulder, particularly the rotator cuff and the muscles that control the shoulder blade. These muscles play an important role in keeping the ball of the shoulder centered in the socket during movement.
Physiotherapy programs may include:
Strengthening exercises for the rotator cuff and shoulder blade muscles
Mobility exercises to restore comfortable range of motion
Movement retraining to improve shoulder mechanics
Gradual progression back to work, sport, or overhead activities
By improving strength, coordination, and movement control, physiotherapy can help reduce stress on the labrum and improve the overall function of the shoulder.
At Royal City Physio, our physiotherapists work with people experiencing a wide range of shoulder injuries, including SLAP tears. Whether your goal is to return to sport, get back to the gym, or simply move through daily activities without pain, a personalized physiotherapy program can help guide your recovery safely and effectively.
If you’re experiencing shoulder pain or have recently been diagnosed with a SLAP injury, our team is here to help. Book an appointment with Royal City Physio to have your shoulder assessed and start a treatment plan tailored to your goals.
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