Pectoralis Major Tendon Repair Surgery
The pectoralis major is the large, fan-shaped muscle of the chest wall that powers movements essential for pushing, lifting, and rotating the arm inward — functions that are critical for bench pressing, throwing, tackling, grappling, and virtually every upper body athletic movement. The pectoralis major tendon attaches the muscle to the humerus (upper arm bone), and when this tendon ruptures — most commonly during a heavy bench press when the arms are in the vulnerable bottom position under maximal eccentric load — the result is sudden, severe pain, visible bruising across the chest and upper arm, an immediate loss of pushing strength, and often a visible change in the contour of the chest where the muscle has retracted. Pectoralis major ruptures occur almost exclusively in men, with the vast majority occurring during weightlifting. Other causes include football, wrestling, mixed martial arts, hockey, and high-energy traumatic injuries of the shoulder.
Dr. Jonathan Glashow is a board-certified orthopedic surgeon and Clinical Associate Professor of Orthopedic Surgery at NYU Grossman School of Medicine, with over 30 years of sports medicine experience treating tendon ruptures in competitive athletes and active individuals. Pectoralis major tendon repair is a technically demanding procedure — the torn tendon must be identified, mobilized from surrounding scar tissue, and reattached to its anatomic footprint on the humerus with strong fixation that can withstand the powerful forces the pectoralis generates — and the best outcomes are achieved when surgery is performed within the first few weeks of injury, before the tendon retracts and scar tissue makes repair significantly more difficult. As Chief Medical Officer for the New Jersey Devils and Philadelphia 76ers, Dr. Glashow manages acute tendon ruptures in professional athletes where restoring full strength for return to competition is the standard of care. Named a Castle Connolly Top Doctor every year since 2000, he performs pectoralis major tendon repair at his Upper East Side practice in New York City.
Types of Pectoralis Major Ruptures
Pectoralis major ruptures are classified by the location of the tear, which determines the surgical approach and prognosis:
- Type 1 — Humeral Insertion: The tendon tears away from its attachment on the humerus. This is the most common type and the most amenable to surgical repair, because the tendon can be reattached directly to the bone using suture anchors or drill holes.
- Type 2 — Musculotendinous Junction: The tear occurs at the transition between the muscle and the tendon. These can be more challenging to repair because the tissue at this junction is less robust than pure tendon.
- Type 3 — Muscle Belly: The tear occurs within the muscle itself. Muscle belly tears are typically treated non-operatively, because the muscle tissue does not hold sutures well enough for reliable surgical repair.
- Type 4 — Sternal Origin: The muscle tears away from the sternum (breastbone). This pattern is extremely rare.
An MRI or ultrasound is used to confirm the diagnosis, determine the exact location of the tear, assess the degree of tendon retraction, and guide surgical planning.
Symptoms of a Pectoralis Major Rupture
- Sudden, intense pain in the chest and upper arm — often described as a tearing or ripping sensation
- An audible pop or snap at the time of injury
- Rapid bruising across the chest, anterior shoulder, and upper arm
- A visible defect, pocket, or dimpling in the chest wall near the front of the armpit where the muscle has retracted
- Weakness in pushing the arms forward, across the body, or inward (adduction and internal rotation)
- Asymmetry of the chest wall compared to the uninjured side
Surgical Repair and Recovery
Complete tendon tears at the humeral insertion (Type 1) and many musculotendinous junction tears (Type 2) are treated with surgical repair — reattaching the torn tendon to its anatomic footprint on the humerus through an incision at the front of the shoulder and upper arm. The tendon is secured using suture anchors, cortical buttons, or sutures passed through bone tunnels, and the repair is reinforced to withstand the high forces the pectoralis generates during pushing and lifting activities. The procedure is performed on an outpatient basis.
After surgery, the arm is immobilized in a sling for four to six weeks to protect the repair. Gentle range-of-motion exercises begin within the first few weeks, with progressive strengthening introduced over the following months. Most patients return to daily activities within six to eight weeks and to full weightlifting and contact sports between four and six months after surgery. Dr. Glashow coordinates rehabilitation closely with physical therapists and uses strength testing to determine when each patient is ready to return to heavy upper body loading.
Partial tears and muscle belly tears (Type 3) are typically managed non-operatively with rest, anti-inflammatory medications, and a structured physical therapy program — though patients should be aware that some degree of strength and cosmetic asymmetry may persist.
Pectoralis Tendon Repair in New York City
If you have experienced a sudden tearing sensation in your chest during a bench press or contact sport, noticed bruising across the chest and upper arm, or have visible asymmetry in the chest wall, you may have ruptured your pectoralis major tendon — and early surgical repair produces the best outcomes. Dr. Glashow offers urgent evaluation with same-day MRI at his Upper East Side practice. Contact our office to schedule your consultation.
Frequently Asked Questions About Pectoralis Major Tendon Repair
What causes a pectoralis major tendon rupture?
The most common cause is heavy bench pressing — more than 75 percent of pectoralis ruptures occur during this exercise, typically at the bottom of the movement when the arms are extended and the muscle-tendon unit is under maximum eccentric stretch. The injury can also occur during football tackles, wrestling, mixed martial arts, hockey body checks, and other high-energy impacts or falls. Anabolic steroid use is a recognized risk factor, as it increases muscle strength faster than tendon strength can adapt — creating a mismatch that makes the tendon more vulnerable to rupture.
How do I know if I tore my pec or just strained it?
A complete pectoralis tendon rupture typically produces a sudden, dramatic event — an audible pop, immediate severe pain, rapid bruising that spreads across the chest and arm within hours, visible asymmetry of the chest wall, and significant weakness in pushing movements. A muscle strain produces pain and soreness but generally allows some continued function, does not produce the characteristic dimpling or retraction, and bruising — if present — develops more gradually. An MRI is the definitive way to distinguish between a partial tear, a complete rupture, and a muscle strain, and Dr. Glashow recommends imaging for any significant chest or shoulder injury sustained during heavy lifting.
How soon after a pec tear should surgery be performed?
Early repair — ideally within the first two to four weeks — produces the best results. As time passes, the torn tendon retracts away from its attachment point and scar tissue fills the gap, making it progressively more difficult to mobilize the tendon and reattach it with adequate tension. Chronic pec tears (more than six to eight weeks old) can still be repaired, but may require tendon graft augmentation and generally have less predictable outcomes than acute repairs. This is why Dr. Glashow recommends urgent evaluation for any suspected pectoralis rupture.
Do all pec tears require surgery?
No. Partial tears, muscle belly tears (Type 3), and sternal origin tears (Type 4) are typically managed without surgery using rest, anti-inflammatory medications, and physical therapy. Surgery is recommended for complete tendon ruptures at the humeral insertion (Type 1) and most musculotendinous junction tears (Type 2) — particularly in active individuals and athletes who need full pushing strength. Older, sedentary patients with complete tears may choose non-operative management, though they should expect some permanent loss of strength and chest wall symmetry.
How long until I can bench press again after surgery?
Most patients are cleared to begin light upper body strengthening around three months after surgery, with progressive loading introduced over the following weeks. Return to heavy bench pressing and full-intensity upper body training generally occurs between five and six months after surgery — once the repaired tendon has incorporated fully and the muscle has regained adequate strength. Dr. Glashow uses objective strength testing rather than a fixed calendar to determine when each patient is ready to resume maximum loading.
Will my chest look normal after surgery?
Surgical repair of a complete pectoralis tendon rupture typically restores the normal contour and symmetry of the chest wall — the retracted muscle is advanced back to its anatomic position and reattached, which eliminates the dimpling and asymmetry that the rupture created. Some patients may notice mild asymmetry compared to the uninjured side, particularly if there was a delay in repair or if the muscle had retracted significantly before surgery. Cosmetic restoration is generally excellent when the repair is performed early.
