A Problem more common than you might think
By Dr. Michael Hisey After watching Texas Rangers first baseman Prince Fielder, and pitcher Matt Harrison both end their seasons because of spinal issues, sports fans again saw another top player go down to a back injury – Neymar Jr from host Brazil. It happened in the World Cup quarterfinal in Fortaleza with the entire world watching. Neymar Jr had helped his side all but secure victory over Colombia when he was struck from behind by a rash challenge from Colombia’s Juan Zuniga. After the impact, Neymar was in obvious discomfort and was stretchered off of the field for evaluation. As a spine surgeon at Texas Back Institute, several questions occurred to me. More on these later.There are Many Questions
Early reports were that the player would miss 4-6 weeks to allow healing of his fracture. Images of his radiographs (a CT scan reconstruction) have been widely circulated and described as a “clean break”. But is that really the case? This image is one slice of what would typically be a several hundred slice study, so any diagnosis based on a single slice is quite limited. It is not even clear that this is truly an image of Neymar’s back or that the level is L3 – in fact, it appears lower.What is Spondylolysis and How is it Treated?
Anatomically, spondylolysis is a defect in the ring portion of the vertebra, at what is known as the pars interarticularis. Each vertebra has joints connecting to the vertebra above and below. These defects occur between these joints (hence the name “interarticularis”). There are several theories about just what causes these defects, but common elements to the theories is repetitive stress to this portion of the bone. The stress may be due to loading in extension – similar to what football linemen experience when they are blocking or impacts gymnasts bear when landing. This stress is amplified by the presence of the joint above acting like a fulcrum at the weak area of the bone. If all of this happens in the teenage years, when this portion of the bone is trying to solidify, then a stress fracture can develop. This can happen with or without symptoms of back pain. This problem is quite common and is a leading cause of back pain in teen athletes. If caught early enough, spondylolysis can be successfully treated with activity modification. Often, though, these defects don’t cause symptoms or the symptoms resolve without the bone fully healing, leaving a “pars defect”. This is such a common problem that most of us probably know several people with it even if they don’t know about it.What About Neymar?
Q: What is spondylolysis?
Spondylolysis is a defect in the ring portion of a vertebra, at what is known as the pars interarticularis. Dr. Hisey explains that each vertebra has joints connecting it to the vertebrae above and below, and these defects occur between those joints. Several theories exist about the cause, but a common element across them is repetitive stress to this portion of the bone.
Q: How is spondylolysis different from an acute fracture?
Spondylolysis is a pre-existing defect rather than a new break. In Neymar’s case, the imaging showed healed bone on the surfaces of the fracture, which Dr. Hisey uses to explain why this was not an acute injury. An acute fracture would carry a very different prognosis and a different recovery timeline than an aggravated pre-existing pars defect.
Q: Can athletes continue to compete with spondylolysis?
Yes, according to the article. Dr. Hisey notes that there are literally thousands of athletes performing at a very high level with spondylolysis or pars defects, and many more recreational athletes with the same condition. Bone healing is not always necessary to return to activity. The goal in Neymar’s case was to rehabilitate him to a point of being pain-free rather than waiting for the bone to heal.
Q: If the defect was pre-existing, what caused Neymar's symptoms to appear?
Spondylolysis often causes no symptoms, or symptoms resolve without the bone fully healing, leaving what is called a pars defect. This defect leaves a weakness in the back that can make it more vulnerable to injury from an impact that might not otherwise cause problems. The article suggests Neymar’s pre-existing defect was aggravated by a direct blow to his back during the quarterfinal match.
Q: What does treatment for this condition typically look like?
If caught early enough, spondylolysis can be successfully treated with activity modification. Dr. Hisey notes that in Neymar’s situation, the treatment goal would be to rehabilitate him to the point of being pain-free, which may be achievable more quickly than waiting for bone healing. Only a very small percentage of pars defects eventually require surgery.
Q: When should a back injury sustained during sport be evaluated by a specialist?
The article presents Neymar’s case as a reminder that spinal injuries in athletes warrant proper evaluation, particularly when initial imaging does not provide a complete picture. A back injury serious enough to require a stretcher during competition, or one that ends a player’s tournament, should be thoroughly assessed by a spine specialist rather than attributed to routine soreness.
Medically Reviewed By

Michael S. Hisey, MD
Board-Certified Orthopedic Spine Surgeon
Specialty: Orthopedic Spine Surgery
Texas Back Institute | Denton, TX · Flower Mound, TX
Last Reviewed: April 2026
This content is intended for educational purposes only and does not constitute individualized medical advice. Consult a qualified healthcare provider for diagnosis and treatment.

