top of page
KNEE CONDITIONS

Evidence-based guides on the most common knee conditions seen in Dr. Peng's Campbell, CA sports medicine clinic. Each guide covers causes, symptoms, diagnosis, and the full range of non-surgical treatment options — with a downloadable PDF handout.

knee pixel art.jpg

Select a condition to read the full evidence-based guide, learn about treatment options, and download a printable PDF handout.

knee osteoarthritis.jpg

Knee
Osteoarthritis

Progressive cartilage loss causing pain, stiffness, and swelling. Learn how PRP, shockwave therapy, and targeted exercise can slow progression and reduce symptoms.

Full Guide

PDF

Video

patellar tendinopathy.jpg

Patellar
Tendinopathy

Chronic pain below the kneecap from tendon overload — common in jumping athletes. Covers eccentric loading programs, shockwave therapy, and PRP options.

Full Guide

PDF

Video

it band syndrome.jpg

IT Band
Syndrome

Lateral knee pain common in runners and cyclists caused by friction of the iliotibial band. Covers biomechanical corrections and progressive rehab.

Full Guide

PDF

Video

mcl sprain.jpg

MCL
Sprain

Medial collateral ligament injury from a blow or twist causing pain and instability on the inner part of the knee. Most heal without surgery.​​

Full Guide

PDF

Video

osgood schlatter.jpg

Osgood-Schlatter Disease

Painful bump below the knee in active adolescents. Understand the growth plate mechanism, activity modification, and when to expect resolution.

Full Guide

PDF

Video

pes anserine bursitis.jpg

Pes Anserine  Bursitis

Pain and tenderness on the inner knee just below the joint line, common in runners and patients with knee osteoarthritis.

​

Full Guide

PDF

Video

meniscus tear.jpg

Meniscus
Tear

Torn cartilage cushion causing catching, locking, or giving way. Understand tear types, when surgery is truly needed, and effective non-operative rehab strategies.

Full Guide

PDF

Video

patellofemoral pain syndrome.jpg

Patellofemoral
Pain Syndrome

Anterior knee pain worsened by stairs, squatting, and prolonged sitting. Learn how hip and quad strengthening can address the root cause.

Full Guide

PDF

Video

pcl sprain.png

PCL Sprain / Tear

Posterior cruciate ligament injury typically from a direct blow to the front of the shin. Most heal without surgery.

​

Full Guide

PDF

Video

lcl sprain.png

LCL
Sprain

Lateral collateral ligament injury causing pain and instability on the outer side of the knee. Most heal without surgery.

​

Full Guide

PDF

Video

patellar subluxation.jpg

Patella
Subluxation

Partial dislocation of the kneecap out of its groove, often from a twist or direct impact. Learn about risk factors and the strengthening program to reduce re-injury.

Full Guide

PDF

Video

prepatellar bursitis.jpg

Pre Patellar  Bursitis

Swelling and inflammation over the front of the kneecap from repetitive kneeling or direct trauma. Learn when aspiration is needed and what to watch out for.

Full Guide

PDF

Video

bottom of page