母指球筋の痛み

Pain in the ball of the thumb muscle

手のひら側の母指の指付け根と付け根の膨らみを押すと痛くなるとの事で来院。母指は、力が入りやすく、筋肉の疲労が起こりやすい部分です。物を引っ張ったり支えたり、物をつかんだりして、力を入れることが多く、他の指より酷使され、指のだるさや張り感など、炎症がでやすくなります。放置すると母指の指先の関節が曲がり、白鳥の首のように変形していきます。母指の第1中手骨と、手首側にある小さい骨の大菱形骨の間の関節を第1手根中手骨関節・CM関節と言います。このCM関節は、母指が他の指と向き合ってつまみ動作ができるように大きな動きのある関節です。酷使しすぎると、関節軟骨の摩耗が起き易く、進行すると関節が腫れ、亜脱臼してきて母指が変形してきます。鍼灸治療では、鍼を刺すことで、痛みのある母指の指付け根と付け根の膨らみの炎症を鎮静鎮痛に導き、筋も弛緩させ、筋腱の損傷から引き起こされる拘縮や筋緊張を取り除きます。

The patient came to the clinic because of pain when pressing on the bulge at the base and base of the knuckle of the mother finger on the palm side of the hand. The thumb is an area where force is easily exerted and muscle fatigue is likely to occur. The thumb is used more than other fingers because it is often used to pull, support, and grasp objects, and it is more prone to inflammation, such as a sluggish and tense feeling. If left untreated, the joint at the tip of the thumb bends and becomes deformed like a swan's neck. The joint between the first metacarpal of the thumb and the greater rhomboid bone, a smaller bone on the wrist side, is called the first carpal metacarpal joint or CM joint. This CM joint is a joint of great motion that allows the mother finger to make a pinching motion facing the other fingers. Overuse can easily cause wear of the articular cartilage, and as it progresses, the joint swells, becomes subluxated, and the thumb becomes deformed. In acupuncture treatment, acupuncture needles are applied to the painful base of the knuckle and the bulge at the base of the knuckle to bring about soothing pain relief, relax the muscles, and remove contractures and muscle tension caused by muscle-tendon injuries.