Treating Fractures in Older Patients: Beyond the Broken Bone

While half the fracture-prevention battle is getting people diagnosed with low bone density, nearly 80% of older Americans who suffer bone breaks are not tested or treated for osteoporosis. Fractures associated with aging and diminished bone mineral density exact an enormous toll on patients' lives and cost the health care system billions of dollars annually according to Bone Health and Osteoporosis: A Report of the Surgeon General. But current gaps in patient education and bone density screening are huge.

"It's concerning that older patients at risk for fracture are often not screened to determine their risk factors contributing to osteoporosis and patients are not educated about fracture prevention," said Meryl S. LeBoff, MD, an endocrinologist at Brigham and Women's Hospital, and chief of calcium and bone section, and professor of medicine, at Harvard Medical School, Boston. "Furthermore, the majority of highest-risk women and men who do have fractures are not screened and they do not receive effective, [Food and Drug Administration]–approved therapies."

Recent guidelines

Screening with dual-energy x-ray absorptiometry (DEXA) is recommended for all women at age 65 and all men at age 70. But the occasion of a fracture in an older person who has not yet met these age thresholds should prompt a bone density assessment.

"Doctors need to stress that one in two women and one in four men over age 50 will have a fracture in their remaining lifetimes," Dr. LeBoff said. "Primary care doctors play a critical role in ordering timely bone densitometry for both sexes.

If an older patient has been treated for a fracture, the main goal going forward is to prevent another one, for which the risk is highest in the 2 years after the incident fracture."

According to Kendall F. Moseley, MD, clinical director of the division of endocrinology, diabetes & metabolism at Johns Hopkins Medicine in Baltimore, "Elderly patients need to understand that a fracture at their age is like a heart attack of the bone," she said, adding that just as cardiovascular risk factors such as high blood pressure and blood lipids are silent before a stroke or infarction, the bone thinning of old age is also silent.

Endocrinologist Jennifer J. Kelly, DO, director of the metabolic bone program and an associate professor at the University of Vermont Medical Center in Burlington, said a fracture in anyone over age 50 that appears not to have resulted from a traumatic blow, is a compelling reason to order a DEXA exam.

Nahid J. Rianon, MBBS/MD, DrPH, assistant professor of the division of geriatric medicine at the UTHealth McGovern Medical School, Houston, goes further: "Any fracture in someone age 50 and older warrants screening for osteoporosis. And if the fracture is nontraumatic, that is by definition a clinical diagnosis of osteoporosis regardless of normal results on bone density tests and they should be treated medically. There are aspects of bone that we still can't measure in the clinical setting."

If DEXA is not accessible, fracture risk over the next 10 years can be evaluated based on multiple patient characteristics and medical history using the online FRAX calculator.

Just a 3% risk of hip fracture on FRAX is considered an indication to begin medical osteoporosis treatment in the United States regardless of bone density test results, Dr. Rianon said.

Fracture management

Whether a senior suffers a traumatic fracture or an osteoporosis-related fragility fracture, older age can impede the healing process in some. Senescence may also increase systemic proinflammatory status, according to Clark and colleagues, writing in Current Osteoporosis Reports.

They called for research to develop more directed treatment options for the elderly population.

Dr. Rianon noted that healing may also be affected by a decrease in muscle mass, which plays a role in holding the bone in place. "But it is still controversial how changing metabolic factors affect bone healing in the elderly."

However, countered Dr. Kelly, fractures in elderly patients are not necessarily less likely to mend – if osteoporosis is not present. "Many heal very well – it really depends more upon their overall health and medical history. Whether or not a person requires surgery depends more upon the extent of the fracture and if the bone is able to align and heal appropriately without surgery."

Fracture sites

Spine. According to the American Academy of Orthopedic Surgeons the earliest and most frequent site of fragility fractures in the elderly is the spine. Most vertebral fracture pain improves within 3 months without specific treatment. A short period of rest, limited analgesic use, and possible back bracing may help as the fractures heal on their own. But if pain is severe and persistent, vertebral augmentation with percutaneous kyphoplasty or vertebroplasty may be an option. These procedures, however, can destabilize surrounding discs because of the greater thickness of the injected cement.

Hip. The most dangerous fractures occur in the hip. These carry at least a 20% risk of death in the first postoperative year and must be treated surgically. Those in the proximal femur, the head, or the femoral neck will usually need hip replacement, but if the break is farther down, it may be repaired with cement, screws, plates, and rods.

Distal radius. Outcomes of wrist fractures may be positive without surgical intervention, according to a recent retrospective analysis from Turkey by Yalin and colleagues. In a comparison of clinical outcomes in seniors aged 70-89 and assigned to cast immobilization or various surgical treatments for distal radius fractures, no statistically significant difference was found in patient-reported disability scores and range of motion values between casting and surgery in the first postoperative year.

Other sites. Fractures in the elderly are not uncommon in the shoulder, distal radius, cubitus, proximal humerus, and humerus. These fractures are often treated without surgery, but nevertheless signal a high risk for additional fractures.

Bone-enhancing medications

Even in the absence of diagnosed low bone density or osteoporosis, anabolic agents such as the synthetic human parathyroid hormones abaloparatide (Tymlos) and teriparatide (Forteo) may be used to help in some cases with a bad healing prognosis and may also be used for people undergoing surgeries such as a spinal fusion, but there are not clinical guidelines. "We receive referrals regularly for this treatment from our orthopedics colleagues, but it is considered an off-label use," Dr. Kelly said.

The anabolics teriparatide and romosozumab (Evenity) have proved effective in lowering fractures in high-risk older women.

Post fracture

After recovering from a fracture, elderly people are strongly advised to make lifestyle changes to boost bone health and reduce risk of further fractures, said Willy M. Valencia, MD, a geriatrician-endocrinologist at the Cleveland Clinic. Apart from active daily living, he recommends several types of formal exercise to promote bone formation; increase muscle mass, strength, and flexibility; and improve endurance, balance, and gait. The National Institute on Aging outlines suitable exercise programs for seniors.

"These exercises will help reduce the risk of falling and to avoid more fractures," he said. "Whether a patient has been exercising before the fracture or not, they may feel some reticence or reluctance to take up exercise afterwards because they're afraid of having another fracture, but they should understand that their fracture risk increases if they remain sedentary. They should start slowly but they can't be sitting all day."

Even before it's possible to exercise at the healing fracture site, added Dr. Rianon, its advisable to work other areas of the body. "Overall mobility is important, and exercising other parts of the body can stimulate strength and help prevent falling."

In other postsurgical measures, a bone-friendly diet rich in calcium and vitamin D, as well as supplementation with these vital nutrients, is essential to lower the risk of falling.

Fall prevention is paramount, said Dr. Valencia. While exercise can improve, gait, balance, and endurance, logistical measures may also be necessary. Seniors may have to move to a one-floor domicile with no stairs to negotiate. At the very least, they need to fall-proof their daily lives by upgrading their eyeglasses and home lighting, eliminating obstacles and loose carpets, fixing bannisters, and installing bathroom handrails. Some may need assistive devices for walking, especially outdoors in slippery conditions.

At the end of the day, the role of the primary physician in screening for bone problems before fracture and postsurgical care is key. "Risk factors for osteoporosis and fracture risk must be added to the patient's chart," said Dr. Rianon. Added Dr. Moseley. "No matter how busy they are, my hope is that primary care physicians will not put patients' bone health at the bottom of the clinical agenda."

This article originally appeared on MDedge.com, part of the Medscape Professional Network.

Credits:
Lead image: Lacheev/Dreamstime
Image 1: Brigham and Women's Hospital
Image 2: Johns Hopkins Medicine
Image 3: University of Vermont Medicine
Image 4: UTHealth McGovern Medical School
Image 5: Cleveland Clinic

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Cite this: Treating Fractures in Older Patients: Beyond the Broken Bone - Medscape - Sep 06, 2023.