Knee & Thigh Pain · Walnut Creek
Move Past Knee Pain. Get Back to Performing.
Conservative, non-surgical care in Walnut Creek for knee and thigh pain — runner's knee, meniscus tears, ACL and MCL injuries, osteoarthritis, and hamstring and quad strains — for athletes, lifters, runners, and active adults who want to keep moving.
Dr. Douglas Cancel brings 30+ years of sports chiropractic experience to a professional sports model of care: precise diagnosis, hands-on treatment, movement retraining, and supervised strength rehabilitation.
Knee pain affects all aspects of your life
Going down stairs. Getting out of the car. Squatting to lift something. The first mile of a run, or the last set of the workout. The knee is the body's largest joint, and it carries you through nearly everything. When knee pain arises, it simply cannot be ignored.
At Performance Sport Care in Walnut Creek, Dr. Douglas Cancel has spent more than thirty years providing non-surgical solutions to athletes and active adults seeking relief from knee and thigh pain. Most of the people we help have already tried something — in some cases many things — that didn't work for them. Our first job is to find out why. Sometimes the cause is simple. Other times, the reasons are complex and represent multiple factors — a spike in training load, weak or underused muscles around the hip and knee, movement habits that overload the joint, restricted mobility above or below it, an old injury that was never fully rehabilitated, or gaps in recovery strategy or nutrition. In some cases, it is influenced by carrying a body weight that exceeds your natural design specifications. Consideration of these factors enables us to establish an accurate diagnosis, a clear, frank understanding of your situation and a plan for recovery. That is the foundation of what we do. By taking the time to really listen and carefully examine patients, we often find the missing link or links that have kept pain relief so frustratingly elusive for them. We then target those links and follow it with a plan to rebuild your strength and fortify your improvement. Focused evaluation. Definitive diagnosis. Targeted treatment and supervised strength rehabilitation, not spinal adjustments alone.
Personalized treatment for knee & thigh pain
At Performance Sport Care, we understand that no two knees are alike. Dr. Cancel builds each recovery plan around your specific diagnosis, your sport, and your goals. His treatment protocols are drawn from the methods used in professional sports — and informed by his own decades as a National-level competitive bodybuilder and lifelong strength-training athlete, which shape how he understands the way training loads the knee, hip, and thigh.
Because the knee rarely works in isolation, his assessment also considers the hip and ankle that can contribute to a knee problem, so the plan often addresses the entire kinetic chain, not just the knee in isolation. This is the same multi-factor thinking that is utilized in professional sports and informs our approach to every patient we treat.
Knee & thigh conditions we treat
Dr. Cancel provides non-surgical care for a wide range of knee and thigh conditions. Understanding what each one is — and what tends to bring it on — is the first step toward resolving it.
The Knee
Patellofemoral Pain (Runner's Knee)
An aching pain around or behind the kneecap that worsens with stairs, squatting, running, and long sitting. It commonly develops after a sudden increase in training and is often tied to weakness in the hip and gluteal muscles, limited mobility, and mechanics that overload the front of the knee.
Iliotibial (IT) Band Syndrome
A sharp pain on the outer side of the knee, common in runners and cyclists, that appears at a predictable point in a run or ride. It is typically brought on by rapid mileage increases, downhill or cambered surfaces, and weakness of the hip abductor and gluteal muscles.
Meniscus Tears
Catching, clicking, swelling, or pain with twisting and deep bending. Gradual, wear-related tears are common after the mid-thirties; traumatic tears may follow a twist or a loaded squat. Many respond well to non-surgical care — a landmark 10-year study recently confirmed why — though a knee that locks usually warrants a surgeon's opinion.
ACL & MCL Injuries
Ligament injuries that often follow a twist, awkward landing, or direct blow, producing instability or a sense of giving way. With surgeon approval, Dr. Cancel provides pre-hab and continuing post-surgical supervised exercise. Many isolated MCL injuries are managed without surgery.
Knee Osteoarthritis
Stiffness and a deep, aching pain, often worse after inactivity or after overdoing an activity. It develops over years from accumulated joint load, prior injury, and — frequently — added body weight bearing on the joint.
Patellar & Quadriceps Tendinopathy
Pain at the front of the knee, common in jumping and lifting athletes, that often eases during activity and re-intensifies afterward. It usually arises from high training volume, deep knee-dominant loading, and insufficient recovery.
The Thigh & Upper Leg
Hamstring Strains
A sudden, sharp pain at the back of the thigh, often mid-stride during sprinting or acceleration. Risk rises when high-speed conditioning lags behind training demands — part of why these cluster in preseason.
Quadriceps & Rectus Femoris Strains
Pain at the front of the thigh tied to kicking, sprinting, and explosive movements that combine hip extension with knee effort.
Adductor & Groin Strains
Pain along the inner thigh provoked by cutting, changes of direction, and wide leg movements — common in field, court, and skating sports.
Proximal Hamstring Tendinopathy
A deep, nagging ache at the sit-bone that worsens with prolonged sitting and uphill running, typically from repetitive loading without adequate progression.
Patients we help
Knee and thigh pain looks different in a lifter than it does in a runner or an active grandparent. These are a few of the people we see most often.
The strength athlete with anterior knee pain
After a stretch of high-volume leg work and too few deloads, a deep ache settles in at the front of the knee on every descent. Dr. Cancel identifies the load-and-mechanics pattern behind it and adjusts the training so progress continues.
The runner whose knee flared up
As the mileage climbed and hills were added during what had been a pain-free build, pain appeared around or just outside the kneecap — the familiar pattern of runner's knee or IT band syndrome, which usually resolves with targeted hip and gluteal work and a smarter return to running.
The active adult told they need a scope
An MRI shows a degenerative meniscus tear and surgery is raised. For wear-related tears in this age group, current evidence suggests supervised rehabilitation frequently matches surgical outcomes, and Dr. Cancel offers an honest assessment of which path makes sense.
The athlete who keeps re-pulling a hamstring
The injury returns each season because proper strength-training protocols were never taught or followed, nor were sprint progressions ever finished. Implementing those protocols is what finally breaks the cycle.
The person slowing down from arthritis
Stairs are avoided and activities are quietly given up. Muscles weaken, joint support diminishes, and arthritis progresses regardless of rest. Arthritic knees respond to the right exercise better than most people expect — rebuilding strength and confidence is the heart of the plan.
How we treat knee & thigh pain
We combine proven techniques into a single, coordinated plan — and we lead with what the evidence shows works best.
Accurate Diagnosis
Every plan begins with a careful history and physical examination to formulate an accurate diagnosis and to rule out musculoskeletal pathology, instability, or other clinical circumstances that might warrant a specialty medical referral. We act upon such circumstances with appropriate urgency. Imaging is ordered to confirm suspicions from the exam or to affirm clinical decision-making.
Supervised Strength & Neuromuscular Training
Rebuilding the strength of the quadriceps, hamstrings, adductors, glutes, and calves — together with balance and control work — is the most strongly evidence-supported treatment across nearly every knee and thigh condition. For knee osteoarthritis, exercise is the first-line recommendation in clinical guidelines; for runner's knee, combined hip and knee strengthening reliably reduces pain; for hamstring injuries, progressive eccentric strengthening lowers re-injury risk. Much of this work takes place in our on-site rehabilitation gym, where it is supervised for correct technique, appropriate load, and steady progression.
Manual Therapy & Chiropractic Care
Hands-on soft-tissue techniques, joint mobilization, and judicious adjustments relieve pain and restore mobility through the hip, knee, and ankle — making the strengthening work more comfortable and more effective.
Movement & Load Retraining
We refine the squatting, landing, running, and cutting patterns that often contribute to injury, so the joint is loaded in the way it is built to tolerate.
Nutritional Guidance
Where excess body weight is loading an arthritic knee, or where recovery and protein intake are limiting tissue repair, targeted nutritional strategies support healing and improve outcomes.
The great majority of knee and thigh pain we see responds well to this kind of skilled, progressive, non-surgical treatment — and that is what we do best.
Evidence & further reading
Our approach reflects current peer-reviewed evidence in sports medicine and rehabilitation. Representative sources:
- Messier SP, et al. Effect of diet and exercise on knee pain in patients with osteoarthritis and overweight or obesity. JAMA. 2022;328(22):2242–2255. View study
- Barton CJ, et al. The “Best Practice Guide to Conservative Management of Patellofemoral Pain.” Br J Sports Med. 2015;49(14):923–934. View study
- Bolgla LA, et al. National Athletic Trainers’ Association position statement: management of individuals with patellofemoral pain. J Athl Train. 2018;53(9):820–836. View study
- Goode AP, et al. Eccentric training for prevention of hamstring injuries may depend on intervention compliance: a systematic review and meta-analysis. Br J Sports Med. 2015;49(6):349–356. View study
- Svantesson J, et al. Rehabilitation of medial collateral ligament injuries: a systematic review. BMJ Open Sport Exerc Med. 2024;10(2):e001750. View study
Take the first step toward pain-free movement
If knee or thigh pain is limiting your training, your work, or simply your day, there's no need to keep living with it. Schedule an evaluation with Dr. Douglas Cancel and get an honest plan built around your knee, your sport, and your goals.
Request an Appointment or call (925) 945-1155Can a chiropractor actually help with knee pain?
Yes — and often more effectively than people expect. With more than 30 years of sports chiropractic experience, Dr. Cancel first relieves the pain with hands-on manual therapy, then rebuilds the strength and retrains the movement patterns behind it. Because he also assesses the hip and ankle that can contribute to a knee problem, results tend to hold rather than relapse. Most knee pain responds well to this kind of skilled, progressive, non-surgical care.
What’s the best treatment for runner’s knee (patellofemoral pain)?
Combined hip and knee strengthening, paired with a smarter return to running, is the best-supported approach in the research. Self-treatment with foam rolling and rest can ease symptoms, but manual therapy with Dr. Cancel is superior. Lasting relief comes from strengthening the glutes and quads and correcting your stride. Most runners keep running — at a modified volume — throughout treatment.
Why does my knee hurt when I squat or do leg presses?
Pain at the front of the knee during heavy knee-dominant training is common in lifters and CrossFit athletes. It usually reflects training-load spikes, skipped deloads, and a lot of knee-extension volume without comparable posterior-chain, hip, and calf work. Dr. Cancel — a former competitive bodybuilder — identifies the specific load and mechanics driving it and adjusts your training rather than simply telling you to stop.
Can a meniscus tear heal without surgery?
Many can. Degenerative tears — particularly the gradual, wear-related ones common after 35 — often respond as well to supervised rehabilitation as to surgery. A traumatic tear that locks the knee is different and may need an orthopedic opinion. Dr. Cancel gives you an honest assessment of which category your tear falls into.
Do you treat thigh injuries like hamstring, quad, and groin strains?
Yes — they’re central to what we do. Rehabilitation progresses from gentle isometrics to progressive and eccentric loading, then to sprinting, cutting, and sport-specific work. For hamstrings in particular, completing that progression is what prevents the common re-tear on the first hard sprint back.
Does strengthening really help knee osteoarthritis?
Yes — it’s one of the best-supported findings in musculoskeletal medicine. Progressive quadriceps and hip strengthening reduces pain and improves function, and exercise is the first-line recommendation in clinical guidelines for knee osteoarthritis. Where extra body weight is loading the joint, combining exercise with nutrition support improves results even further.
Can I keep training or running while my knee is treated?
In most cases, yes — modified. Complete rest often delays recovery and deconditions you. Dr. Cancel identifies what’s safe to keep doing and how to adjust your load, so you maintain fitness while the injury heals.
Do I need an MRI before starting treatment?
Not necessarily. Dr. Cancel performs a thorough orthopedic exam and orders imaging only when it will change the clinical decision. Many knee and thigh conditions can be accurately diagnosed and effectively treated without an immediate MRI.
When does knee or thigh pain need a surgeon instead?
A knee that locks and won’t fully straighten, a complete ACL tear with giving-way, a suspected multi-ligament injury, a full tendon rupture, or red flags such as inability to bear weight, deformity, numbness, or a cold foot all warrant prompt orthopedic evaluation. We screen for these at your first visit, refer quickly when needed, and handle your rehabilitation afterward.
How long does knee or thigh rehabilitation take?
It varies by condition and severity. Mild to moderate problems often improve significantly in 6–10 weeks. Muscle strains depend on grade and sport demands, and post-surgical ACL rehabilitation typically takes 6–9 months. Dr. Cancel gives you a realistic, milestone-based timeline at your first visit.
Where is Performance Sport Care located?
We’re at 1776 Ygnacio Valley Road, Suite 106, Walnut Creek, CA 94598. We serve patients from Walnut Creek, Concord, Pleasant Hill, Lafayette, Danville, Alamo, and surrounding Contra Costa County communities.
Don’t let knee pain hold you back from the activities you love.
Call (925) 945-1155 or click the ‘Request An Appointment’ link to schedule your consultation today. Let Dr. Cancel and his team guide you toward a pain-free, active life.