The pectoral tendon attaches the pec major muscle to your humerus or arm bone. The pec major is a very powerful muscle. Pectoral tendons are usually ruptured or torn in weight lifters during bench pressing. Traumatic injuries in sports can also result in a pec tendon tear. Surgery is often needed to repair complete pec tears. The recovery after surgery often means that this is a season-ending injury.
A torn pectoral tendon is usually an easy diagnosis to make. Your story usually goes something like this… You were bench pressing, you heard a series of pops and the bar came back down to your chest rapidly. If that sounds familiar, you have likely torn a pectoral tendon or have pectoralis major rupture. Over the next few days, you will notice heavy bruising and swelling. As the swelling starts to subside, you will see a deformity of your pectoralis major. If you tighten your chest muscles you will see the pec ball up over your chest. A torn pectoral should be repaired (if it is repairable) as soon as possible. If you suspect a pec tendon injury you should see a shoulder doc sooner rather than later.
A torn pectoral tendon tends to occur in “younger” active weight lifters. However, because 50 somethings are lifting more often and more weight we are seeing pec tears in this age group as well. This is an injury we usually see rapidly in our clinic since the injury is quite striking, the deformity is easy to notice and the story you give is always consistent. There is usually significant bruising present and there is usually an obvious deformity noted as your pec major bunches up in your chest.
Like J.J Watt, a torn pec tendon can occur in any collision sport as well. This will be a season-ending injury for Watt. What is the decision making and recovery time frame going forward for J.J Watt and others who have torn their pec tendon?
The pectoralis major is a large muscle connecting from your sternum (chest) and clavicle to your humerus or upper arm bone. The pec major has two large subdivisions, the sternal head, and the clavicular head. Injuries to the pec major can involve just the deeper sternal head (partial rupture), or both heads (complete rupture).
Types Of Torn Pectoral Tendons?
Tears of the pectoralis major can be partial (just one head) or complete.
In type 1 torn pectoral, the tendon of the pectoralis major tears directly off of the humerus – the easiest to fix.
In type 2 torn pectoral the tear occurred where the muscle starts transitioning into a tendon – the muscle-tendon junction- harder to fix, but still possible.
In type 3 pec ruptures, the tear is completely within the muscle itself. May not be repairable.
In type 4 pec ruptures, the muscle tears off of the sternum.
A Type 1 or Type 2 pec tear is far more common than type 3 or 4.
How Do You Treat A Torn Pectoral Tendon?
Most pec major tendon ruptures occur in very active people. Without surgery, pectoralis major tears will cause weakness and an obvious deformity. Because of that, most people with a pec tear will choose to have them repaired. The pec major is not an absolutely essential muscle, and many of these pec tears are partial tears, so if the loss of strength and the deformity do not bother you then you can be treated without surgery.
How Do You Repair A Torn Pectoral Tendon?
If you choose to have surgery to repair your pec tendon tear then you should understand the following principles.
Type 1 tears where the tendon ripped off the bone are the most straightforward to repair. The surgery is open, and the incision is placed in your axilla. During the surgery, we will use a suture anchor device to place sutures into the bone and then we will use those sutures to repair the tendon back to the bone. You will be in a sling for a while and then start strengthening exercises after enough healing has occurred.
Type 2 tears are more difficult. These tears occur at the “muscle-tendon” junction of the pec major. Muscle tendon junction tears can be very difficult to fix because you can not sew or repair muscle. Often times we wait a little while for some early repair scar tissue to form on the pec muscle which will make the repair easier. Sometimes we might need to augment or strengthen the repair with a cadaver tendon.
Type 3 tears are purely within the muscle. They are very rare and very hard to repair. We must wait a few weeks for scar tissue to form so we have something we can attempt to repair.
Most tears are Type 1 or 2, so most tears are easily repairable. The results of surgery are generally good, and most of you will be pleased with the appearance of the pectoralis and your performance in the gym after you have recovered.
How Long Does Is Recovery From A Torn Pectoral Tendon?
Pectoralis tears generally heal very well. It can take at least 6 months until you are back in the gym and back to your normal routine. It can take a year or more until you have normal strength, although that might occur earlier in many of you.
What Are The Risks Of A Pec Tendon Repair?
No surgery is without risk. The risks include the risks of anesthesia, infection, weakness, stiffness, a recurrent pectoral rupture, an abnormal appearance, nerve or blood vessel injuries.
The overall risks of surgery are very low. Below is a video detailing how a pectoral tendon tear is repaired.
Moe F says
Had right Pectoralis shoulder surgery June 24 I start physical therapy when can I start going to the gym working out body parts minus the chest area like back biceps shoulders legs and triceps if I have full range of motion
Howard J. Luks, MD says
I wouldn’t start doing those until your surgeon says it is ok. Otherwise, you could tear the tendon again.
Jeff Fernandez says
Hi Dr Luks, I injured my Pectoralis major on 9/24/2019. I had an MRI a few days ago, waiting on insurance prior auth to see surgeon this week, MRI says “ Full Thickness tear of the distal myotendinous junction of the right Pectoralis muscle , with 3.7cm of retraction of the torn fibers. Associated right Pectoralis muscle strain.”.
I was wondering if u could decipher that in layman’s terms and tell me what type tear I have ..?
Howard J. Luks, MD says
You have a muscle-tendon junction tear. Many of those can be repaired. good luck!
Jose valencia says
Good evening Dr. Luks, I ruptured my pec tendon early this year in May 2019. Dr. Says 90% of the pec tendon tore off the humerus and about 90% at the junction tore as well, along with some pec muscle damage. Needless to say I was benching 355lbs wide grip on bench press.. A week after the injury I had surgery and the surgery was a success. Today I have good symmetry, full mobility and SLOWLY gaining my strength back ( can now bench 105). November 15 will be the 6 month point and till this day I still have this pain at the anchoring site. When I firmly apply pressure to it. I can palpate an approx. 1cm ball (mass) right in the anchoring site and that is what hurts. No pain when engaged in rang of motion nor while at work or physical activity. Any insight on what this might be . Scar tissue? Is pain normal at the 6 month mark? Any feedback would be greatly appreciated! Best regards!
Phil says
Hi Dr Luks,
Great site, thanks for all the info. Is it possible to have a very minor pec tear? A few weeks ago I was doing bench and felt a bit of pain on the medial part of my humerus right below my armpit during the concentric push. There was also a little pain around the middle/upper two inches of the lateral part of my pec.(no bruising or deformity that I could/can notice) I have avoided push movements since and the only movement that really bugs the humerus area is being fully extended and passively hanging in the supine chin up position.
I understand it is tough to say without seeing for yourself but do you think rest and eventual light stretching/rolling of the area is the best course of action moving forward?
Thanks,
Phil
Howard J. Luks, MD says
Yes, you can have partial pec tears. Some partial tears are tiny, some include 1/2 the pec muscle. It is best if you are examined and an actual diagnosis is confirmed. if it is a partial tear you do not want to risk it becoming a full tear if you return too soon
Phil says
Sounds good, I will get it checked out.
Thanks for the reply,
Phil
Robert Cooper says
Hi Dr Luks,
Would the sternal fibres of the pectoralis major ball up and deform in the chest when contracted if the posterior lamina of the tendon were torn (partial tear)? This is what is happening to me. It is clear the clavicular fibres are still attached, but there is certainly a thinning of the axillary fold when I push my hands together in front of my chest to contract the pectoral. I believe I have a full-width, partial-thickness tears of the posterior (sternal) portion. I was bench pressing 5 weeks ago and I felt a pop and pull, then a lot of pain and lost all strength. There was immediate swelling, but very little bruising. I am booking in to see a private specialist as a previous consultant was not interested in seeing anything less than a complete rupture, but I would appreciate your opinion.
Kind regards,
Rob
Howard J. Luks, MD says
HI Rob…
Yes… a partial tear of the sternal head will create that deformity.
Robert Cooper says
Thank you for replying. I thought as much, but have not found any sources to support this.