Latest / The Total Knee Success Podcast: Your Essential Resource for Navigating Total Knee Replacement / Episode 106: Why Balance Can Still Feel Off After Knee Replacement (What Strength Alone Does Not Fix)
Transcript
- 0:00the researchers concluded that cortical involvement
- 0:02in balance regulation increases with aging. In
- 0:07ordinary language, your brain may have to pay
- 0:10more attention to keep you steady than it did
- 0:12when you were 20 or 30. Are you ready to get
- 0:16back to what you love after knee replacement?
- 0:19The Total Knee Success podcast is your trusted
- 0:21guide with practical tips, evidence -based strategies,
- 0:24and no fluff. It's not personal medical advice,
- 0:28just solid education to help you manage pain,
- 0:31regain mobility, and get back to living the life
- 0:33you love. Let's dive in. Welcome back to the
- 0:39Total Knee Success podcast. I'm Michelle. Your
- 0:42operated leg may be getting stronger. You may
- 0:45be walking farther, getting out of a chair more
- 0:47easily, and handling stairs with more confidence.
- 0:51Then you turn quickly, walk across the yard,
- 0:53or get up during the night and suddenly feel
- 0:56unsteady. Strength is improving, so why hasn't
- 0:59your balance quite caught up? This is the second
- 1:03episode in our four -part series on falls, balance,
- 1:06and everyday independence. Episode 105 covered
- 1:09what to do after a fall. Today we're focusing
- 1:13on why balance can still feel off after knee
- 1:16replacement. By the end of this episode, you'll
- 1:18understand why your balance may not feel 100
- 1:21% dependable, even though your strength has improved.
- 1:24You'll also know what to notice and what information
- 1:27to share with your healthcare provider or physical
- 1:30therapist. James was several months past his
- 1:33knee replacement and making good progress. He
- 1:36was stronger, walking farther and doing better
- 1:38on stairs. His balance had improved too, although
- 1:42certain situations continued to require more
- 1:44care. Turning in the kitchen, crossing the grass,
- 1:48and walking through the house at night were still
- 1:50more challenging. He wanted to understand why
- 1:53those situations had not improved as quickly
- 1:56as his strength. James is not a real person.
- 2:00His story reflects situations people commonly
- 2:02experience after knee replacement. This episode
- 2:06focuses on balance challenges that have continued
- 2:09while strength and walking improve. A new or
- 2:12sudden change in your balance should be evaluated
- 2:14by a health care professional. The CDC advises
- 2:18calling 911 right away for sudden dizziness or
- 2:21trouble walking, loss of balance or coordination,
- 2:24one -sided facial or limb weakness, trouble speaking,
- 2:28sudden trouble seeing, or a sudden severe headache.
- 2:31If you're outside the United States, call your
- 2:33local emergency number. Fainting or chest pain
- 2:36also require emergency medical care. Now, let's
- 2:41return to the ongoing balance challenges James
- 2:43noticed. It helps to separate them into three
- 2:47parts. First, your body has to know where it
- 2:50is. Then, it has to respond to turns and uneven
- 2:53ground. Vision and lighting change how much information
- 2:57is available. We'll take those one at a time,
- 2:59then look at fatigue and symptoms that should
- 3:02be discussed with a healthcare professional.
- 3:05James noticed a big difference between walking
- 3:08straight across the kitchen and changing direction,
- 3:11especially when he did it quickly. Walking straight
- 3:14felt comfortable because each step followed the
- 3:17one before it. When he turned, the movement changed
- 3:20quickly. He had to slow his forward motion, shift
- 3:22his weight, move one foot, and begin traveling
- 3:25in a new direction. His strength helped him support
- 3:28his weight. Staying steady through the turn also
- 3:32depended on timing, coordination, and knowing
- 3:34where his feet were. His brain gathered information
- 3:37from his eyes, inner ears, muscles, and joints,
- 3:41then used that information to organize the next
- 3:44step. That entire process usually happens fairly
- 3:48automatically, or at least you don't have to
- 3:50think about it very much. After a new replacement,
- 3:53James was still getting comfortable shifting
- 3:55onto his operated leg and moving the other foot
- 3:58around it. When he tried to turn too quickly,
- 4:01his feet did not always keep the pace with the
- 4:03rest of his body. He began slowing down and stepping
- 4:07through the turn instead of pivoting on one planted
- 4:10foot. Several small steps helped him keep his
- 4:13feet underneath him and reduced twisting through
- 4:15his operated knee. As he got stronger and more
- 4:18of his coordination returned, his steps became
- 4:21larger and his turn felt smoother. Walking in
- 4:25the yard challenged James differently. A sidewalk
- 4:28gives you a fairly consistent place to land from
- 4:31one step to the next, as long as the sidewalk
- 4:34is fairly level. Grass can cover small dips,
- 4:37raised areas, and patches of softer ground that
- 4:40you might not be able to see. James could see
- 4:43the lawn, but he could not always see exactly
- 4:45how his foot would land. Each time the ground's
- 4:49angle or firmness changed, his feet and ankles
- 4:51had to adjust. His knees and hips then had to
- 4:54help keep his weight moving in the direction
- 4:56he wanted to go. usually forward. Some of those
- 4:59adjustments happened while most of his weight
- 5:01was supported by his operated leg. Now, James
- 5:04had the strength to walk across the yard. The
- 5:07uneven surface also required him to notice changes
- 5:10under his foot and respond before taking the
- 5:13next step. And that timing was still improving,
- 5:16so he slowed down and watched where he placed
- 5:18his feet. Looking down gave him more visual information
- 5:22while the surface was still changing. As he practiced
- 5:25on the grass and became more comfortable, gradually
- 5:27looked farther ahead. He could scan for dips
- 5:30and changes in the ground while relying more
- 5:32on what he felt through his feet and legs. Vision
- 5:36gives your brain reference points for balance.
- 5:39You use the edge of the rug, the outline of the
- 5:42doorway, and changes in the floor to judge where
- 5:44you are and where your next step will land. Most
- 5:47of that happens fairly automatically during the
- 5:49day. Your eyes also change as you get older.
- 5:53Your pupils gradually become smaller so less
- 5:56light reaches your retina. That makes it harder
- 5:58to see objects, edges, and changes in the floor
- 6:01when the room is dim. Your eyes also take longer
- 6:05to adjust when you move from a bright room into
- 6:07a darker one. These changes happen gradually
- 6:10throughout adulthood. By your 40s and 50s you
- 6:13may begin to notice that you need more light
- 6:15to see the floor clearly or more time for your
- 6:18eyes to adjust at night. Dim lighting gives your
- 6:22brain fewer visual reference points. Your body
- 6:25then depends more on information from your inner
- 6:27ears and the sensory receptors in your feet,
- 6:30ankles, knees and hips. If your awareness of
- 6:33your operated leg or your stepping response is
- 6:35still improving, walking in lower light may feel
- 6:38less steady, even as your strength improves.
- 6:43There's another age -related change happening
- 6:44at the same time. Balance often requires more
- 6:48thought and attention as we get older. A 2026
- 6:51study measured brain activity while younger and
- 6:54older adults performed balance tasks. The researchers
- 6:57concluded that cortical involvement in balance
- 7:00regulation increases with aging. In ordinary
- 7:05language, your brain may have to pay more attention
- 7:08to keep you steady than it did when you were
- 7:0920 or 30. You may think more about where you
- 7:12place your feet, how you turn, or what the ground
- 7:15feels like under you. That extra attention becomes
- 7:19especially important when the lighting is poor,
- 7:21the surface is uneven, or you're trying to do
- 7:24something else while you walk. That helped explain
- 7:27why James felt more cautious walking to the bathroom
- 7:30at night. He could manage the same route easily
- 7:33during the day. At night he had fewer visual
- 7:36reference points, his eyes needed more time to
- 7:39adjust, and his balance required more attention.
- 7:42Better lighting helped him see the floor, doorway
- 7:44and edges of the rugs along the entire route.
- 7:48Vision changes can also affect how you judge
- 7:51steps and curves. An outdated prescription, an
- 7:54eye condition, or the way you look through bifocals
- 7:56or progressive lenses may change what you see
- 7:59when you glance downward. If you repeatedly misjudge
- 8:02a step or curb, discuss that with your eye care
- 8:05professional or your doctor. James also noticed
- 8:09that turning and walking across uneven ground
- 8:11required more concentration later in the day.
- 8:15In the morning, his steps felt more controlled.
- 8:17By evening, his operated leg tired sooner. His
- 8:21steps became a little shorter and he took more
- 8:23time changing direction. Balance depends on how
- 8:27quickly your muscles and nervous system respond
- 8:29when your weight shifts. As your leg becomes
- 8:32tired, those responses may become slower or less
- 8:35precise. You may also rely more heavily on your
- 8:38other leg or spend less time standing on that
- 8:41operated leg. Each change may be small. although
- 8:45several small changes happening at the same time
- 8:48can make you feel less steady. He started paying
- 8:52attention to when the change occurred and what
- 8:54he had been doing beforehand. At his next physical
- 8:57therapy visit, he described turning in the kitchen,
- 8:59walking across the grass, moving through the
- 9:02house at night and feeling less controlled later
- 9:05in the day. Those details helped his physical
- 9:07therapist determine whether he needed to work
- 9:09more on endurance, weight shifting, stepping
- 9:12response, coordination, or body position awareness,
- 9:16or some combination of those activities. You
- 9:19can do the same thing. Tell your physical therapist
- 9:22which movement challenges you, where it happens,
- 9:24what time of day it occurs, and what you feel.
- 9:27A cane may be useful temporarily in a more challenging
- 9:30setting, such as uneven ground or a crowded event.
- 9:34Ask your physical therapist whether one is appropriate
- 9:37for that type of situation and how to adjust
- 9:39it. and use it correctly. Ongoing or recurrent
- 9:43spinning or lightheadedness should be reported
- 9:45to your health care provider. If your balance
- 9:47changed after you started a medication or your
- 9:50dose changed, contact the prescribing clinician
- 9:52or pharmacist for assistance with your medications.
- 9:56James could now explain when he felt unsteady
- 9:59and what he was doing at the time. His balance
- 10:01had already improved and he understood why a
- 10:04quick turn, uneven grass, and a dark hallway
- 10:07continued to require more care. He and his physical
- 10:10therapist could use those details and decide
- 10:12what to practice. As those skills improved, he
- 10:15could take longer steps through a turn, look
- 10:17further ahead on the grass, and move through
- 10:19his home at night with more confidence. And I
- 10:24think he probably needed some more light as well.
- 10:27If pain, stiffness, or swelling changes how you
- 10:29walk, turn, or trust your operated knee, it may
- 10:32also change how steady you feel. My 2026 update
- 10:36of Making Sense of Pain After Knee Replacement
- 10:39explains how activity, swelling, sleep, stress,
- 10:43and other things may interact and help you recognize
- 10:47symptom patterns across several days. The updated
- 10:50edition is a little longer and goes a little
- 10:52further in depth, and I'm excited for you to
- 10:54check it out. You'll find the link in the episode
- 10:57description and at TotalKneeSuccess .com. You
- 11:01can also join the Totally Success Insider Newsletter
- 11:03for new episodes, articles, and knee replacement
- 11:06education delivered by email. The sign -up link
- 11:09is in the episode description and on the website.
- 11:13In episode 107, we'll build on this by looking
- 11:16at the parts of a fall prevention plan. I'll
- 11:19explain what people do to review their homes,
- 11:21routines, and activities so you can use that
- 11:24information to create your own plan and decide
- 11:26where guidance from a healthcare professional
- 11:28may help. Thanks for joining me. I'm Michelle
- 11:32and this has been the Total Me Success podcast.
- 11:38This podcast is for educational purposes only.
- 11:42Discover more at TotalMeSuccess .com and be sure
- 11:45to subscribe and share because every step forward
- 11:48takes you closer to living the life you love.