acromiohumeral

adjective

acro·​mio·​hu·​mer·​al ə-ˌkrō-mē-(ˌ)ō-ˈhyü-mə-rəl 

: of, relating to, or affecting the acromion and humerus

… radiological signs include superior displacement of the humeral head with respect to the glenoid, narrowing of the acromiohumeral space …

—Robert O. Cone et al., The Journal of the American Medical Association