A treatise on orthopedic surgery . d. —In a typical case of so-called periarthritis thepatient complains of a dull pain about the joint and sensitive-ness to pressure just below the acromion process or over thebicipital groove and occasionally a swelling is evident on theanterior aspect of the joint. The pain is increased by motion,particularly by abduction or by rotation of the arm. In mildcases only extensive motion causes pain, but in most instancesthere is a constant sensation of discomfort which is increasedto acute pain by sudden movements or jars. The part becomessensitive to


A treatise on orthopedic surgery . d. —In a typical case of so-called periarthritis thepatient complains of a dull pain about the joint and sensitive-ness to pressure just below the acromion process or over thebicipital groove and occasionally a swelling is evident on theanterior aspect of the joint. The pain is increased by motion,particularly by abduction or by rotation of the arm. In mildcases only extensive motion causes pain, but in most instancesthere is a constant sensation of discomfort which is increasedto acute pain by sudden movements or jars. The part becomessensitive to pressure, so that the patient avoids lying on the ^ Chir. Krank. des Kindersalters, Berlin, generale de med., Paris, 1872. 494 OETHOPEDIC SUEGERY. shoulder at night. In certain instances the pain may radiatedown the arm. and there may be weakness and numbness of thefingers. Gradually the passive movements of the joint are Fig. 328. ^?auc C/f_ mcoarromial burse?^ injected with. Tlif sulKleltuid bursa. (Baer.) diminished in range, and atrophy of the shoulder muscles ap-pears. These symptoms usually pass as rheumatism, but there is nofever, no involvement of other joints, no swelling, and, as a rule^no general sensitiveness to pressure, as is usual when the syno-vial membrane of the joint is affected. In certain instances the DISEASES OF ARTICULATIONS OF UPPER EXTBEMITYAd5 symptoms follow injury, or exposure to cold, or they appearwithout apparent cause. In typical cases the symptoms aredue to inflammation of the subdeltoid bursa, as originally de-scribed by Duplay. This bursa lies beneath the deltoid muscleseparating it from the joint. According to Baer it is about thesize ola silver half dollar (Fig. 329). It sends a prolongationbeneath the acromion process and the coracoacromion the bursa is enlarged it presents a mechanical obstacle to ab-duction and in acute cases one that is sensitive to pressure. Inother case


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Keywords: ., bookauthorwhitmanr, bookcentury1900, bookdecade1910, bookyear1910