Understanding Knee Pain and Knee Injuries
4/1/2026
Featuring Cody Hartshorn, M.D., and Corey Mark, M.D., orthopedic surgeons at Lakeside Physicians
Knee pain is one of the most common reasons people visit an orthopedic surgeon. From athletes to retirees, from weekend gardeners to ranchers, knee problems can affect nearly anyone at any age. Whether the issue is a sudden injury or slow, gradual arthritis, knee pain can limit mobility, interrupt sleep and keep people from enjoying activities they love.
At Lakeside Physicians, orthopedic surgeons Cody Hartshorn, M.D., and Corey Mark, M.D., care for patients across a spectrum of knee conditions, from mild sprains to advanced arthritis that may require knee replacement.
Common Causes of Knee Pain
- Osteoarthritis of the knee
The most common cause in older adults. The smooth cartilage that cushions the joint wears down over time, leading to stiffness, swelling and pain with activity.
- Sports or work-related injuries
Younger and more active adults often experience meniscus tears, ACL or MCL injuries, ligament sprains, tendon injuries or kneecap instability.
- Overuse and tendonitis
Repetitive activities like running, climbing stairs or kneeling can inflame tendons and soft tissues around the joint.
- Bursitis
Fluid filled sacs that cushion the knee can become irritated and swollen.
- Fractures
Falls and high impact injuries can cause fractures around the knee that require urgent treatment.
When to Seek an Evaluation
Consider seeing an orthopedic surgeon if you experience:
- Persistent pain lasting more than a few weeks
- Swelling that does not improve
- Difficulty walking or bearing weight
- Pain that disrupts sleep
- Clicking, locking, or catching in the knee
- Feeling like the knee gives out
“Patients are often surprised how quickly knee problems improve once we get the right diagnosis,” says Dr. Hartshorn.
How Knee Pain Is Treated
Most patients begin with conservative treatments:
- Physical therapy
- Anti inflammatory medication
- Bracing or support sleeves
- Weight management
- Cortisone injections
- Activity modification
- Viscosupplementation in select cases
“These treatments can dramatically reduce pain and improve function,” Dr. Mark explains. “Many people return to normal activity without ever needing surgery.”
When Surgery Becomes the Right Option
Depending on the severity of the condition:
- Arthroscopic surgery can repair cartilage or remove loose fragments.
- Ligament reconstruction may be needed for ACL or other ligament injuries.
- Partial or total knee replacement may be recommended for severe arthritis.
“Knee replacement is one of the most successful procedures in all of medicine,” says Dr. Hartshorn. “We see patients who could barely walk before surgery return to living full, active lives.”
Dr. Mark adds, “Our goal is always to match the right treatment to the patient. When knee replacement is the best option, it can be life-changing.”
Doctors Cody Hartshorn, M.D., and Corey Mark, M.D., at Lakeside Physicians provide knee evaluation and treatment for patients of all ages.
To schedule an appointment, call Lakeside Physicians Orthopedics:
(817) 579-2020
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