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The ankle is the cause of many musculoskeletal injuries. Knowledge of ankle anatomy and physiology can provide an initial framework to help clinicians formulate a differential diagnosis. A thorough history should be obtained, with a focus on mechanism of injury and symptom duration to hone the differential diagnosis and physical examination. Specific diagnostic maneuvers allow for evaluation of individual structures and assessment of ankle stability. The Ottawa Ankle Rules can assess the need for x-rays and help rule out underlying fracture. Lateral and medial ankle sprains and Achilles tendinopathy are among the most common ankle conditions in the primary care setting. These sprains are managed with ankle protection with a splint, brace, or other device; the rest, ice, compression, and elevation (RICE) protocol; and a short course of nonsteroidal anti-inflammatory drugs (NSAIDs). Management of Achilles tendon conditions typically consists of the RICE protocol, activity reduction, physical therapy or clinician-directed exercises, NSAIDs, and, in severe cases, short-term immobilization. For patients with stable ankle fractures, various orthoses can be used for immobilization. Orthopedic consultation should be sought for patients with unstable ankle fractures.

For patients with elbow pain, a comprehensive history and physical examination can identify the mechanism of injury and specific tests can help determine the underlying pathology. When imaging is indicated, x-ray typically is the initial modality. Indications for ultrasonography include the need for static, dynamic, and stress visualization of elbow cartilage, tendons, ligaments, and osseous structures. Magnetic resonance imaging study is preferred for assessment of chronic elbow pain because of its ability to detect bone marrow edema, tendinopathy, nerve entrapment, and joint effusion. In children, common elbow conditions and injuries include supracondylar fracture, posterior elbow dislocation, medial epicondyle apophysitis (Little Leaguers elbow), ulnar collateral ligament injury, and chronic lateral elbow pain. Primary and secondary bony ossification centers and the presence of growth plates affect management of these conditions in children. In adults, common conditions and injuries are radial head fractures, lateral epicondylitis, medial epicondylitis, and ulnar nerve compression. Radial head fractures are categorized according to the Modified Mason Classification. Patients with type III and IV fractures should be referred for surgical management. Lateral and medial epicondylitis are overuse injuries diagnosed based on signs and symptoms. Surgical management should be considered for patients who do not improve with conservative management.

The incidence of neck pain in US primary care settings ranges from 10% to 21% per year. A key component in evaluation of patients with neck pain is identification of red flag signs or symptoms that indicate the need for urgent evaluation for possible serious conditions. These include fever, unexplained weight loss, trauma, vision changes, new or severe headache, and altered mental status, among others. Patients with acute onset or worsening chronic neck pain without trauma or red flag signs or symptoms should be assessed initially with x-ray. Magnetic resonance imaging study is recommended for patients with progressive neurologic symptoms, neurologic compromise, suspected infection, or other red flag signs or symptoms. Common conditions and injuries associated with neck pain in the primary care setting include cervical strains and sprains, cervical spondylosis, cervical discogenic pain, cervical radiculopathy and myelopathy, whiplash, cervical fracture, and postural pain. Most patients with neck pain without red flag signs or symptoms recover with conservative management, however, there is little evidence to support these treatments. Pharmacotherapy includes nonsteroidal anti-inflammatory drugs, acetaminophen, and muscle relaxants. Small benefits have been shown for combination exercise programs, mind-body programs, and acupuncture. Referral for surgical management is indicated for patients with progressive neurologic deficits.

Common wrist conditions include fractures and other injuries, osteoarthritis, radial epiphysitis, joint instability, de Quervain tenosynovitis, carpal tunnel syndrome, ganglion cyst, and ulnar neuropathy. The initial history and physical examination, with particular focus on the anatomic structures of the wrist, can narrow the differential diagnosis. Magnetic resonance imaging study can be used to identify soft tissue masses and occult osseous processes, particularly with scaphoid fractures. Computed tomography scan is useful in cases of bony abnormalities, high clinical suspicion of occult fracture, and surgical planning. Musculoskeletal ultrasonography can help identify soft tissue injuries, synovitis, or edema. It also can assess for nerve pathology, such as increased median nerve surface area in carpal tunnel syndrome. Management of common wrist fractures, such as distal radius, carpal, and scaphoid fractures, includes nonsurgical and surgical options, immobilization, and referral for further management or surgical consultation. Other wrist conditions, including overuse conditions such as carpometacarpal osteoarthritis or radial epiphysitis, can be managed conservatively initially. Ganglion cysts can be managed with immobility and rest initially, or aspiration or surgical excision. Ulnar neuropathy is the result of local compression of the ulnar nerve at the level of the carpal bones. It typically is managed with activity modification and splinting.

Physicians who care for patients with dementia also must provide support for patient caregivers and family members. Caregiver burden requires attention from the health care team because most caregivers of patients with dementia report high levels of emotional stress. This burden is more severe when patients have comorbid conditions, behavioral and psychological symptoms of dementia, and more severe functional impairments. A functional assessment of activities of daily living can be done using standardized screening tools. Driving is a specific instrumental activity of daily living that can become dangerous in dementia; decisions about stopping driving often are complicated by patient resistance and loss of independence. Clinicians will be faced with questions regarding patient decision-making capacity, which is the ability to comprehend information and use reason to communicate an informed choice. As complex decision-making capacity is likely to diminish with dementia progression, discussing advance directives and designation of a surrogate decision-maker early in the disease course is paramount. Dementia remains an incurable progressive disease; therefore, management often is directed toward maintaining quality of life, managing symptoms, and palliating suffering. Patients with dementia may become eligible for hospice when they lose speech, locomotion, or consciousness.

Early and accurate diagnosis are crucial to appropriate care, ensuring timely intervention, and planning for future needs of patients with dementia. Dementia is a clinical diagnosis and should include comprehensive evaluation of patient cognitive and functional abilities, diagnostic laboratory evaluation, and brain imaging. A comprehensive evaluation for dementia includes a thorough medical history and physical examination, which may reveal important clues about the potential underlying causes of cognitive decline. A detailed medical history, physical examination, laboratory tests, and imaging studies can help identify any contributing factors. In addition, validated cognitive assessment tools can help clinicians identify the extent and nature of cognitive deficits, and track disease progression over time. Advances in the field of dementia research, such as serum biomarkers, are showing promise in facilitating an earlier and more accurate diagnosis. With the rise of telemedicine, new opportunities for virtual diagnosis have emerged, which can expand access to care for individuals in remote or underserved areas. The use of telemedicine for dementia diagnosis is still in its infancy, but research suggests that it has the potential to be an effective and convenient tool for evaluating patients with suspected dementia.

Dementia, also called major neurocognitive disorder, is characterized by a chronic progressive loss of cognitive function in the absence of fluctuating consciousness. It represents a primarily geriatric syndrome that may be caused by one of several underlying conditions. There is insufficient evidence to support universal screening for cognitive impairment in older adults; however, clinicians should be alert to patient and caregiver concerns about cognitive changes and investigate such concerns with validated cognitive assessment tools. Alzheimer disease is the leading cause and prototypical form of dementia, presenting insidiously and causing progressive cognitive impairment with increasing severity over a period of years. Vascular dementia is the second most common form of dementia and often co-occurs with other progressive cognitive disorders. Lewy body dementias encompass Parkinson disease dementia and dementia with Lewy bodies, which have similar features and are differentiated primarily by the order of motor and cognitive symptom onset. Frontotemporal dementias occur earlier than other forms of dementia, progress rapidly, and often have a genetic component. An understanding of the conditions that cause dementia will assist clinicians in making an accurate diagnosis and providing appropriate treatment recommendations and counseling regarding the diagnosis and prognosis.

Dementia management requires individualized patient encounters that focus on education and realistic expectations. Numerous vitamins and supplements are promoted for memory enhancement, but they lack evidence to support their use. Nonpharmacotherapy should be used through all stages of dementia. Common initial pharmacotherapy includes cholinesterase inhibitors and memantine, with use guided by dementia type, tolerability, patient goals, and disease stage. Assessment of benefit should incorporate caregiver input, functional improvements, behavioral symptoms, and tolerability. Management length is individualized. When a drug is discontinued, physicians should evaluate the patient for early worsening of cognitive or functional symptoms. Newer treatments, such as aducanumab, can reduce beta-amyloid plaques, but evidence for cognitive improvements is lacking; these treatments also are expensive and patient access is limited, resulting in barriers to widespread use. As dementia progresses, patients often develop behavioral and psychological symptoms, which are challenging for patients and caregivers. Nonpharmacotherapy is the first-line treatment for behavioral and psychological symptoms of dementia. Use of antipsychotics and benzodiazepines should be limited unless symptoms are placing the patient or others in imminent danger. Pharmacotherapy for these symptoms should be individualized, often requiring trials of various therapeutic options.