RSM-TPT-005
Written by Hironori Ikeda, MSc Sports Medicine
RSM International Academy · Chiang Mai, Thailand
What Should You Assess When Pain Is on the Inside of the Knee?
Pain on the inside of the knee can involve the pes anserine region, medial joint line, MCL or referred contributors. Stairs, squatting, twisting and resisted knee flexion load the region differently. Locate the familiar pain in relation to the joint line and pes tendons before choosing a massage target; local tenderness alone does not establish bursitis.
A painful pes region and pain referred toward the medial knee require different comparisons. I ask whether hip motion or a lumbar movement reproduces the same knee complaint while the knee itself is unloaded, then consider that alongside local knee loading and examination. A proximal response can justify a broader assessment without identifying the source by itself. Local tenderness should not keep the whole session fixed on the knee when the familiar pain behaves differently.
In this article, you will learn how to assess medial knee pain, compare pes anserine versus joint-line, MCL or referred contributors, palpate the region accurately, choose a treatment target and re-test the same stair, squat or knee-loading symptom.
In This Article
- What Should You Assess When Pain Is on the Inside of the Knee?
- In This Article
- 1. Inner Knee Pain Assessment: Pes Anserine, MCL or Medial Joint Line Pain
- 2. Pes Anserine Pain Tests: Stairs, Knee Flexion, Squat & Step-Down Assessment
- Medial knee pain: compare the pes region with joint and referred findings
- 3. Pes Anserine Palpation: Sartorius, Gracilis, Semitendinosus & Medial Knee Landmarks
- 4. Pes Anserine Pain: Choose Muscle Contact or Broaden Assessment
- 5. Pes Anserine Pain Re-Test: Repeat the Same Stair, Squat or Step-Down
- Related RSM Clinical Blogs
- Study Trigger Point Therapy at RSM
1. Inner Knee Pain Assessment: Pes Anserine, MCL or Medial Joint Line Pain
The pes anserinus comprises the sartorius, gracilis and semitendinosus tendons at the anteromedial proximal tibia. I locate the medial tibiofemoral joint line first, then the pes region below it. Nearby tendons, bursa and medial collateral ligament (MCL) can produce overlapping symptoms.
These muscles flex the knee and contribute to medial rotation of the tibia when the knee is flexed. Gracilis also adducts the hip, semitendinosus extends it, and sartorius contributes to hip flexion, abduction and external rotation. Their different proximal actions explain why knee-flexion and selected hip-loading comparisons may give different responses.
During a step-down, the stance knee flexes as the body lowers; the quadriceps controls descent while the hip muscles help control the femur. Medial pain during this action is not automatically pes pain. Joint-line symptoms, twisting or valgus trauma change the assessment toward the joint or MCL.
2. Pes Anserine Pain Tests: Stairs, Knee Flexion, Squat & Step-Down Assessment
Medial knee pain: compare the pes region with joint and referred findings
Finding to compare | Next assessment decision |
Focal pes-region pain with knee-flexor loading | Compare sartorius, gracilis and semitendinosus findings alongside the original stair or step task. |
Joint-line pain with twisting, catching or instability | Broaden the knee examination; a tender nearby tendon does not rule out joint or ligament involvement. |
Hip or lumbar movement reproduces the same knee complaint | Compare proximal findings while keeping the knee unloaded; this response alone does not locate the source. |
This is an RSM assessment summary of the comparisons explained below, not a set of stand-alone diagnostic tests.
I locate the familiar pain relative to the medial joint line and pes region, and ask about swelling, locking, instability and trauma. Stairs and twisting are different loading histories and should not be treated as interchangeable.
If safe, I observe descent from a low step: the stance knee flexes while the opposite foot approaches the floor. I record the painful location and phase, then compare gentle resisted knee flexion. Visible inward knee motion alone does not establish the cause.
Joint-line pain with catching or twisting warrants a broader knee examination. Meniscal or valgus-stress tests belong within appropriate training and must be interpreted with the history; no isolated result settles the diagnosis.
Major swelling after trauma, inability to bear weight, true locking, marked instability or fever with a hot joint changes the plan to medical assessment. I do not keep treating a nearby tender pes tendon when the joint presentation dominates.
3. Pes Anserine Palpation: Sartorius, Gracilis, Semitendinosus & Medial Knee Landmarks
Start by locating the medial joint line, tibial tuberosity and proximal medial tibia. These landmarks stop the therapist from treating every tender structure on the medial knee as the pes anserinus.
Move to the pes region and compare sartorius, gracilis and semitendinosus according to fibre direction, knee position and tissue tension. The goal is not to identify one tendon by pressing harder; it is to use anatomy, position and symptom response to differentiate layers.
A tender point several centimetres below the joint line may be clinically relevant when it reproduces the familiar stair or load-related pain. But local tenderness alone cannot establish whether the bursa, tendon or another nearby tissue is the cause.
If palpation at the joint line reproduces a distinctly different pain, or if the client has swelling, catching or trauma history, shift the hypothesis toward the knee joint rather than deepening the same soft-tissue stroke. Avoid aggressive local work over an acutely inflamed, swollen or traumatised medial knee. Manual contact should clarify the region, not create more pain to prove a theory.
4. Pes Anserine Pain: Choose Muscle Contact or Broaden Assessment
If pes-region palpation and knee-flexor loading reproduce the familiar pain while joint-line and ligament findings are relatively quiet, treatment can focus on the relevant sartorius / gracilis / semitendinosus region and associated load strategy.
I support the thigh and begin over the identified muscle belly proximal to the tender tendon region. With the position unchanged, a short lengthwise contact and a short transverse contact can be compared separately for tolerance. I avoid sweeping deeply across the medial joint line or using the same pressure on muscle belly, tendon and adjacent sensitive tissue.
If adductor, hamstring or hip-control load changes the familiar knee symptom, compare that proximal finding before expanding treatment. This response does not by itself establish referred pain from the hip or lumbar spine. RSM uses the kinetic chain to refine a clinical question, not to treat every muscle around the pelvis.
If the dominant finding is medial joint-line pain, locking / catching, significant MCL-type pain or acute trauma, change the treatment plan. Do not use a temporary reduction in pes tenderness as proof that the knee joint is normal. If there is substantial swelling, systemic redness / heat, inability to bear weight or progressive unexplained pain, refer for medical evaluation.
5. Pes Anserine Pain Re-Test: Repeat the Same Stair, Squat or Step-Down
Repeat the same step-down from the same step height, using the same hand support and descent speed. Record whether medial pain appears early or late as the stance knee flexes, and whether it lies at the joint line or below it.
If resisted knee flexion was the useful comparison, repeat it at the same knee angle and approximate resistance. Easier flexion and reduced tenderness are separate findings; improvement in one does not establish that the bursa or tendon caused the problem.
If the task remains painful, reconsider the joint, ligament and pes-region findings rather than applying stronger pressure. New swelling, locking or instability changes the referral decision.
Related RSM Clinical Blogs
Browse all Trigger Point Therapy clinical guides
▷ Pain Along the Inside of the Shin: MTSS, Muscle or Bone Stress? — Trigger Point Therapy · Compare local knee and lower-leg soft-tissue findings with medial-shin symptoms that require careful screening for bone stress.
▷ Knee Pain on Squats or Stairs: Hip, Knee or Ankle? — Remedial Massage · Compare knee, hip and ankle findings in the original squat or stair task.
▷ Hip Pain or Pain Referred From the Back? — Remedial Massage · Broaden the assessment when hip or lumbar movement reproduces the knee complaint.
▷ Lower Back Pain on One Side: QL, TLJ & Trigger Points — Trigger Point Therapy · Broaden assessment when trunk motion changes the familiar pain.
Study Trigger Point Therapy at RSM
Learn to orient the hand to the medial-knee muscle and tendon relationships, choose a supported contact, and test its relevance against the client's actual knee task at RSM.
For further study, Remedial Massage develops differential assessment and treatment planning beyond the local palpation finding. Check the course's entry requirements when planning your progression.
▷ Trigger Point Therapy — course details and application
About the Author
Hironori Ikeda, MSc Sports Medicine
Founder and lead instructor of RSM International Academy, Chiang Mai, Thailand. His teaching connects functional anatomy, clinical palpation, movement assessment and sports medicine manual therapy.