En español | You probably know someone who’s traded a worn-out hip bone for ceramic or cobalt chrome. Some 370,000 Americans undergo hip-replacement surgery each year (the average age for this is 65). But the operation isn’t a cure-all: At least 1 in 10 hip-replacement recipients will need a second procedure to repair a dislocation, mechanical failure or infection. And hip pain, with or without surgery, can be a struggle. Chronic hip pain was a factor in the accidental opioid overdoses that claimed the lives of musicians Tom Petty, 66, and Prince, 57.

The hip joint is designed to withstand a fair amount of wear and tear, but it’s not indestructible. For example, when you walk, a cushion of cartilage helps prevent friction as the hip bone moves in its socket. With age and use, this cartilage can wear down or become damaged, or the hip bone itself can be fractured during a fall. In fact, more than 300,000 adults over 65 are hospitalized for hip fractures each year, according to the Agency for Healthcare Research and Quality.


People routinely have no pain despite the presence of obvious arthritic degeneration, herniated discs, and other seemingly serious structural problems like stenosis and spondylolistheses. This surprising contradiction has been made clear by a wide variety of research over the years, but the most notable in recent history is Brinjikji 2015. There are painful spinal problems, of course — which was also shown by Brinjikji et al in a companion paper — but they are mostly more rare and unpredictable than most people suspect, and there are many fascinating examples of people who “should” be in pain but are not, and vice versa. Spinal problems are only one of many ingredients in back pain. BACK TO TEXT

The hip joint is designed to withstand a fair amount of wear and tear, but it’s not indestructible. For example, when you walk, a cushion of cartilage helps prevent friction as the hip bone moves in its socket. With age and use, this cartilage can wear down or become damaged, or the hip bone itself can be fractured during a fall. In fact, more than 300,000 adults over 65 are hospitalized for hip fractures each year, according to the Agency for Healthcare Research and Quality.
^ Chou R, Loeser JD, Owens DK, Rosenquist RW, Atlas SJ, Baisden J, Carragee EJ, Grabois M, Murphy DR, Resnick DK, Stanos SP, Shaffer WO, Wall EM, American Pain Society Low Back Pain Guideline Panel (2009). "Interventional therapies, surgery, and interdisciplinary rehabilitation for low back pain: An evidence-based clinical practice guideline from the American Pain Society". Spine. 34 (10): 1066–77. doi:10.1097/BRS.0b013e3181a1390d. PMID 19363457.
If low back pain occurs after a recent injury — such as a car accident, a fall or sports injury — call your primary-care physician immediately. If there are any neurological symptoms, seek medical care immediately. If there are no neurological problems (i.e. numbness, weakness, bowel and bladder dysfunction), the patient may benefit by beginning conservative treatment at home for two to three days. The patient may take anti-inflammatory medications such as aspirin or ibuprofen and restrict strenuous activities for a few days.
The hip flexors play an important role in everyday mobility and exercise. Involved in pulling the knee toward the hip, most movements either directly or indirectly use the hip flexors. That’s why even the slightest injury can cause great discomfort. Learn how you can recover from a hip flexor injury, and what precautions can be taken to avoid them.
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