Acupuncture point selection for knee osteoarthritis: Xuehai (SP10), Liangqiu (ST34), Zusanli (ST36), and Yinlingquan (SP9)
In the acupuncture management of knee osteoarthritis, clinical reasoning typically extends beyond addressing pain alone.
Treatment strategies often consider local inflammatory responses, periarticular circulation,
joint-related swelling, and the biomechanical load placed on the lower extremities.
For this reason, Xuehai (SP10), Liangqiu (ST34), Zusanli (ST36), and Yinlingquan (SP9)
are frequently combined as a balanced point set that integrates local regulation with lower-limb functional support.
Xuehai (SP10) is commonly used to modulate blood-level activity around the medial knee
and is often selected when swelling, warmth, or recurrent discomfort is present.
Liangqiu (ST34), the Xi-cleft point of the Stomach meridian,
is frequently applied in cases of more pronounced pain, particularly when symptoms intensify with movement.
Zusanli (ST36) is included to support overall lower-limb function, recovery capacity,
and endurance, making it especially relevant in chronic or degenerative knee conditions.
Yinlingquan (SP9) is often chosen to address sensations of heaviness, swelling,
or post-activity discomfort, particularly when joint effusion or fluid retention is suspected.
Rather than targeting a single symptom, this combination aims to establish a more stable relationship
between pain modulation, local circulation, and structural load,
thereby reducing the likelihood of recurrent flare-ups.
Treatment frequency in clinical practice
In cases of acute knee pain (such as sudden symptom exacerbation,
pain provoked by movement, or marked local discomfort),
a commonly used clinical approach is 3–5 acupuncture sessions within the first week.
This initial frequency is intended to help reduce pain intensity,
stabilize local reactions, and prevent further escalation during the acute phase.
In chronic or recurrent knee osteoarthritis
(including symptoms persisting for several months, activity-related flare-ups,
or morning stiffness),
treatment is often scheduled at once weekly,
with a recommended course of at least three months.
This duration allows sufficient time to observe gradual changes in pain,
joint mobility, and overall functional stability.
Extended academic reading (collapsible)｜Knee osteoarthritis, acupuncture, and pain modulation
Research background
Contemporary research suggests that acupuncture interventions for knee osteoarthritis
may be associated with modulation of pain perception, functional improvement,
and changes in local or regional physiological responses.
Most studies evaluate outcomes such as pain intensity, physical function,
and quality of life rather than structural joint changes.
Selected studies
- Vickers AJ et al. Acupuncture for chronic knee osteoarthritis pain: a randomized controlled trial. Ann Intern Med. 2012. PMCID: PMC3438146
- Lin X et al. Acupuncture for pain relief in patients with knee osteoarthritis: a meta-analysis. Medicine (Baltimore). 2016. PMCID: PMC4998421
- Zhang Q et al. Effects of acupuncture on pain, physical function, and quality of life in knee osteoarthritis. Evid Based Complement Alternat Med. 2020. PMCID: PMC7266530
- Chen N et al. Acupuncture for symptomatic treatment of knee osteoarthritis: a systematic review. Rheumatology. 2017. PMCID: PMC5862269
Note: Study designs, point combinations, stimulation parameters,
and treatment frequency vary substantially across trials.
These findings reflect overall trends and observed associations;
individual clinical application should be tailored to each patient’s presentation.
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