Skip to main content

Quadriceps Tendon Tear

A torn tendon above the kneecap

A quadriceps tendon tear is a partial or complete rupture of the tendon above the kneecap, most often in adults over 40, typically after a sudden load like stumbling forward. Same-day or next-week evaluations across eight LA-area offices.

Los Angeles orthopedic specialist evaluating a patient for quadriceps tendon tear: LAOSS board-certified care across eight LA offices

See a specialist this week

Board-certified surgeons and podiatrists across eight Los Angeles area neighborhoods.

Book a visitOr call (323) 264-7600

Common knee concerns we treat

  • Pain that limits walking, lifting, or sleep
  • Stiffness, swelling, or reduced range of motion
  • Sports injuries: acute or overuse
  • Arthritis or post-traumatic joint changes
  • Conditions other doctors couldn't resolve

What sets LAOSS apart

  • Same- or next-day appointments at eight Los Angeles-area offices
  • On-site imaging; PT coordinated with your in-network provider
  • Conservative-first care, surgery only when needed
  • Board-certified specialists, not generalists

Key takeaways

  • A quadriceps tendon tear is one of many knee conditions our specialists evaluate every day.
  • Complete quadriceps tendon tears need surgical repair, and the repair works best when done soon after the injury. Small partial tears can heal in a brace.
  • When a procedure is the right call, we explain every option, recovery timeline, and return-to-activity milestone.
  • On-site imaging at most offices and same-day appointments across eight Los Angeles-area locations.

What is a quadriceps tendon tear?

A quadriceps tendon tear is a partial or complete rupture of the tendon above the kneecap, most often in adults over 40, typically after a sudden load like stumbling forward. Because a complete tear leaves the knee unable to straighten, prompt evaluation matters.

Treatment depends on how much of the tendon is torn. Partial tears, where the knee can still straighten on its own, are usually treated in a brace that keeps the knee straight, followed by physical therapy. Complete tears need surgery to reattach the tendon to the kneecap, and results are best when the repair is done soon after the injury.

Below, we walk through the anatomy involved, the symptoms and causes we most often see, how we diagnose a quadriceps tendon tear, and the full range of treatment options, from the simplest to the most involved.

Watch: Quadriceps Tendon Tear

This condition is a tear of the tendon that connects the patella to the quadriceps muscles of the thigh. The quadriceps muscle is used to straighten the leg from the bent position. A complete rupture of the quadriceps tendon is a disabling injury.

Animations licensed from ViewMedica · Swarm Interactive
Anatomical illustration of the knee showing the femur, tibia, patella, meniscus, and cruciate ligaments
Anatomy of the knee: femur, tibia, patella, meniscus, and the ACL/PCL ligaments.

Inside the knee.

The knee is the body's largest hinge joint: it bears your weight, absorbs impact, and lets you walk, run, and pivot. Cartilage and meniscus cushion the joint, while ligaments (ACL, PCL, MCL, LCL) keep it stable. Most knee problems come from wear of those cushioning surfaces or from twisting injuries that damage a ligament or meniscus.

Symptoms and causes of a quadriceps tendon tear

Common symptoms

  • A pop or tearing sensation at the front of the knee
  • Inability to straighten the leg or perform a straight-leg raise
  • Swelling above the kneecap
  • A low-riding kneecap in complete tears

Common causes

  • Sudden eccentric load (stumble, missed step)
  • Chronic quadriceps tendinopathy
  • Steroid use or systemic disease
  • Prior knee surgery

How we diagnose a quadriceps tendon tear

You want answers, fast, and we're built to give them. Most patients leave their first LAOSS visit with a clear diagnosis and a written plan, not another referral chain.

Here's what your initial visit for a quadriceps tendon tear typically looks like:

  • Detailed history: when it started, what makes it better or worse, what you've already tried
  • Focused exam of the knee: range of motion, stability, strength, specific provocation tests
  • On-site imaging at most offices: X-ray for bone, ultrasound or MRI when soft-tissue detail is needed
  • A written plan with options ranging from conservative care to surgical procedures, in plain English

Schedule your evaluation at the LAOSS office nearest you.

How we treat a quadriceps tendon tear at LAOSS

Once we've confirmed the diagnosis, the next step is matching the treatment to the size of the tear and how well the knee can straighten.

Non-surgical care
Partial tears

Non-surgical care for partial tears

For partial tears when you can still straighten the knee on your own.

  • Knee immobilizer or hinged brace locked straight for several weeks
  • Crutches, with weight-bearing as your surgeon allows
  • Physical therapy to restore motion, then strength
  • Ice and anti-inflammatory medication for pain and swelling
  • Repeat exams to confirm the tendon is healing
Surgical care
Complete tears

Surgical repair for complete tears

Minimally invasive and reconstructive procedures performed by board-certified orthopedic surgeons.

  • Repair of the tendon back to the kneecap with sutures or anchors
  • Reconstruction with a tendon graft for older (chronic) tears
  • Brace and protected weight-bearing after surgery
  • Staged physical therapy to regain motion and strength

Why experience matters.

Why experience matters

Knee care is highly technique-dependent. Volume, training, and judgment together determine the outcome you actually feel six months later.

  • Precise diagnosis from imaging and exam
  • Conservative-first care that avoids unnecessary surgery
  • Surgical technique refined over thousands of cases
  • On-site imaging + coordinated PT through your in-network provider

The LAOSS approach

Our knee specialists move stepwise: start with the least-invasive option that fits your situation, escalate only when it doesn't.

  • Same-day imaging at most offices
  • PT coordinated in your insurance network
  • Board-certified surgeons performing the procedures themselves
  • Direct access to your specialist between visits

Am I a candidate?

If most of these match your situation, an evaluation with a knee specialist is the next step.

You may be

You may be a candidate if

These signs typically point toward an in-person evaluation with a knee specialist.

  • Pain or stiffness in the knee that lasts more than a few days
  • Swelling, instability, or noticeable change in function
  • Symptoms that limit walking, lifting, sleep, or work
  • Previous treatment that didn't fully resolve the problem
  • Imaging or exam findings that suggest an underlying issue
Evaluation

What evaluation includes

Your first visit is built to give you an answer the same day, not just another referral.

  • Detailed history: onset, mechanism, what makes it better or worse
  • Hands-on exam focused on the affected joint or region
  • On-site imaging at most offices (X-ray, ultrasound)
  • Clear plan with options ranging from conservative to surgical
  • Same-day or next-day scheduling for any follow-up tests

ImportantSeek urgent evaluation for sudden severe pain, numbness, progressive weakness, or any sign of infection (fever, increasing redness or swelling).

Your knee recovery roadmap.

Recovery is rarely a straight line, but a clear plan with measurable milestones makes the path predictable.

  1. Days 0 to 14

    Right after care

    In the first two weeks we focus on protecting the tendon, with the knee held straight in a brace, and on controlling pain and swelling.

    • Activity modification with clear do/don't guidance
    • Ice, elevation, and pain control as needed
    • Knee kept straight in a brace, bending only as your surgeon allows
    • Follow-up scheduled to track healing
  2. Weeks 2 to 8

    Rehabilitation

    Physical therapy restores knee bending step by step while the tendon heals, and strengthening is added gradually.

    • Gradual, guided increase in knee bending
    • Manual therapy and soft-tissue treatment
    • Brace and weight-bearing advanced as your surgeon directs
    • Coordinated PT through your in-network provider
  3. Months 2+

    Long-term care

    Strengthening continues for several months, and return to sport or heavy work happens only when your surgeon clears it.

    • Return-to-activity plan with measured benchmarks
    • Home program tailored to your sport or job
    • Maintenance visits or imaging if symptoms change
    • Direct line back to your specialist if needed
Risks & considerations

What to weigh before you decide.

We talk through the risks and benefits with every patient. Informed consent is a conversation, not a form.

General

General considerations

Every orthopedic intervention carries a small set of standard risks. We screen, prepare, and monitor for these on every patient.

  • Infection (rare with modern technique and prophylaxis)
  • Bleeding or bruising at the treatment site
  • Reaction to anesthesia or medications
  • Need for additional procedures in some cases
Specific

Knee considerations

Some risks are tied to the structures we're treating in the knee. We discuss these in detail at your visit so you can weigh them against the benefits.

  • Temporary stiffness or weakness during recovery
  • Incomplete pain relief in a small percentage of cases
  • Nerve or vessel irritation near the treatment area
  • Need for follow-up therapy to fully restore function

Meet our knee doctors in the Greater Los Angeles area

At LAOSS, our knee specialists are board-certified and treat these problems every day. From minimally invasive arthroscopic techniques to joint replacement and arthritis management, our physicians bring decades of experience to every case. We have cared for Los Angeles patients since 2007, with one goal for each: less pain, better movement, and a return to the activities you love.

Meet your knee specialists.

View all providers
Compare up to 34 providers
  • Accepting new patients

    Matthew Longacre, MD

    Sports Medicine · Knee

    • Glendale
    • Encino
    • Valencia
    • +1 more
  • Accepting new patients

    Hayk Stepanyan, MD

    Total Joint & Sports Medicine

    • Glendale
    • Santa Fe Springs
    • East Los Angeles
  • Accepting new patients

    Jayson Lian, MD

    Sports Medicine Surgeon

    • Encino
    • Valencia
    • Tarzana
  • Accepting new patients

    Leah Cyran, MD

    Sports Medicine Surgeon

    • Glendale
    • Wilshire
    • East Los Angeles

Care for a quadriceps tendon tear starts here

Don't let a quadriceps tendon tear be something you just power through. With same- or next-day appointments at multiple Los Angeles locations, you'll never wait weeks or months for answers. The same team handles your diagnosis, treatment, and recovery. Whether you need a brace and physical therapy or surgical repair, we plan it with you and coordinate each step.

Call or schedule online today to see a knee specialist in Los Angeles.

Find care by body area.

Jump to a nearby condition page and compare treatment paths across the body.

Common quadriceps tendon tear questions

  • We start with a focused orthopedic exam and detailed history. X-rays are usually done in-office; MRI or ultrasound is ordered when soft-tissue detail is needed. Most patients leave the first visit with a clear diagnosis and a written plan.

Don't wait on pain.

Book a visit with a knee specialist at any of our eight Los Angeles-area offices.

Booking now
21 specialists · 8 offices
Greater Los Angeles
On-site X-raySame visit
Most insurers acceptedIn-network
Triage chat · AI assisted

Los Angeles Orthopedic Surgery Specialists

You are chatting with an AI assistant, not a doctor or nurse. Messages are processed by Microsoft Azure and sent to our care team by email, so share only what you are comfortable sharing. To talk with a person, call (323) 264-7600. Privacy policy

Assistant: Hi, I'm an AI assistant for Los Angeles Orthopedic Surgery Specialists. I'm not a doctor and can't give medical advice. If this is an emergency, call 911 or go to the nearest ER. Anything you share will go to a LAOSS team member who'll reach out to schedule your visit. What's bothering you today?
The assistant is answering. You can keep typing.

Book a visit

Pick a time online, or leave your details and a team member will call you within 1 business day.

Pick a time online

Opens Zocdoc in a new tab

A phone number or an email is enough.

Or call (323) 264-7600