肘膝肿痛，臂 细小，名曰鹤膝风。以其象鹤膝之形而名之也。或止有两膝肿大，皮
肤拘挛，不能屈伸， 腿枯细，俗谓之鼓槌风，要皆不过风寒湿之流注而为病也。
（《和剂》）大防风汤 治寒湿冷气，两膝肿痛，不能屈伸，及治痢后脚膝软
痛，不能履，名曰痢风。此药祛风顺气，活血壮筋骨，行履如故。
防风 羌活 白术 人参 熟地黄 黄 当归 白芍药 牛膝 川芎 甘草 附子
杜仲（姜汁炒）
上水二盏、姜七片、枣一枚，煎八分温服。
伊芳祁丸 治鹤膝风，腰膝风缩之疾。
伊芳祁（全者一对） 桃仁（生） 白附子 阿魏 白芷 桂心（各一两） 乳香 没药（
各七钱） 安息香（桃仁研，一两）
上九味同童便、酒二升，炒熟放冷处。
漏芦 当归 芍药 牛膝 羌活 地骨皮 威灵仙（各一两）
上连前药一处研细末，炼蜜丸，弹子大。每服一丸，酒化下。
郁李丸 治痢后手足不能屈伸。或麻豆症传变手足，筋脉急。
郁李仁 枳壳 独活 鳖甲（醋炙，等分）
上为末，酒糊丸，梧桐子大。每服五十丸。煎木瓜汤或酒下。
加味小续命汤 治鹤膝风，行履不得者。
小续命加萆 川楝子 独活 干木瓜
不用生姜，水煎。碗底洗，放麝香少许将药冲入和匀，服数十帖后加五积散同
煎服瘥。
Swelling and pain in the elbows and knees, with thinning of the arms, is named He Xi Feng (Crane's Knee Wind). It is so named because its appearance resembles the knee joint of a crane. In some cases, only both knees are swollen, with skin that is tight and contracted, unable to flex or extend, while the calves are emaciated and thin; this is commonly known as Gu Chui Feng (Drumstick Wind). All these conditions result from the flow and accumulation of Wind-Cold-Dampness pathogens in the meridians.
(Da Fang Feng Tang [Great Wind-Expelling Decoction] from *Tai Ping Hui Min He Ji Ju Fang*): Treats Cold-Dampness cold qi causing swelling and pain in both knees, inability to flex and extend, as well as softness and pain in the feet and knees after dysentery, making walking difficult, known as Li Feng (Dysentery Wind). This decoction expels wind, regulates qi, invigorates blood, strengthens sinews and bones, restoring normal mobility.
Ingredients: Fang Feng (Saposhnikoviae Radix), Qiang Huo (Notopterygii Rhizoma et Radix), Bai Zhu (Atractylodis Macrocephalae Rhizoma), Ren Shen (Ginseng Radix), Shu Di Huang (Rehmanniae Radix Preparata), Huang Qi (Astragali Radix), Dang Gui (Angelicae Sinensis Radix), Bai Shao Yao (Paeoniae Radix Alba), Niu Xi (Achyranthis Bidentatae Radix), Chuan Xiong (Ligustici Chuanxiong Rhizoma), Gan Cao (Glycyrrhizae Radix et Rhizoma), Fu Zi (Aconiti Lateralis Radix Preparata), Du Zhong (Eucommiae Cortex) stir-fried with ginger juice.
Take two cups of water, seven slices of fresh ginger, and one jujube. Decoct until reduced to eight-tenths volume, and take warm.
Yi Fang Qi Wan (Yifangqi Pill): Treats He Xi Feng (Crane's Knee Wind) and diseases characterized by contraction of the waist and knees.
Ingredients: Yi Fang Qi (whole pair, one set), Tao Ren (Persicae Semen, raw), Bai Fu Zi (Typhonii Rhizoma), A Wei (Asafoetida), Bai Zhi (Angelicae Dahuricae Radix), Gui Xin (Cinnamomi Ramulus, each 1 liang), Ru Xiang (Olibanum), Mo Yao (Myrrhae Resina, each 7 qian), An Xi Xiang (Styrax, ground with Tao Ren, 1 liang).
The above nine ingredients are stir-fried together with child's urine and two sheng of wine until cooked, then allowed to cool.
Add Lou Lu (Euphorbiae Humifusae Herba), Dang Gui (Angelicae Sinensis Radix), Shao Yao (Paeoniae Radix), Niu Xi (Achyranthis Bidentatae Radix), Qiang Huo (Notopterygii Rhizoma et Radix), Di Gu Pi (Lycii Cortex), Wei Ling Xian (Clematidis Radix et Rhizoma, each 1 liang).
Grind all the above medicines into a fine powder. Make pills using refined honey, sized like弹子 (large pellets). Take one pill per dose, dissolved in wine.
Yu Li Wan (Prunus Pills): Treats inability to flex and extend hands and feet after dysentery. Or when Ma Dou Zheng (Mahu Dou Syndrome/Smallpox-like illness) spreads, causing urgency and tension in the sinews and vessels of the hands and feet.
Ingredients: Yu Li Ren (Pruni Semen), Zhi Ke (Aurantii Fructus), Du Huo (Angelicae Pubescentis Radix), Bie Jia (Testudinis Carapax et Plastrum) stir-fried with vinegar, in equal proportions.
Grind the above into powder. Form pills using wine paste, sized like wutong seeds (small pellets). Take 50 pills per dose. Administer with decocted Mu Gua (Chaenomeles Fruit) soup or wine.
Jia Wei Xiao Xu Ming Tang (Modified Minor Continuation Life Decoction): Treats He Xi Feng (Crane's Knee Wind) where walking is impaired.
To Xiao Xu Ming Tang, add Bi Xie (Dioscoreae Hypoglaucae Rhizoma), Chuan Lian Zi (Meliae Fructus), Du Huo (Angelicae Pubescentis Radix), Gan Mu Gua (Chaenomeles Fruit, dried).
Do not use fresh ginger. Decoct with water. Wash the affected area with the bottom of the bowl, add a small amount of She Xiang (Moschus), pour the medicine in, mix evenly, and take. After taking dozens of doses, add Wu Ji San (Five Accumulations Powder) and decoct together to achieve recovery.