RT Journal A1 KUHNS JG, ROBERTS SM, ELLISTON WA, et al T1 SIxty-eighth report of progress in orthopedic surgery JF Archives of Surgery JO Archives of Surgery YR 1939 FD June 1 VO 38 IS 6 SP 1150 OP 1160 DO 10.1001/archsurg.1939.01200120173010 UL http://dx.doi.org/10.1001/archsurg.1939.01200120173010 AB MISCELLANEOUS  Roentgen Therapy in Acute Osteoporosis.  —Osteoporosis is defined by Mumford34 as that condition of bone which follows demineralization or absorption of the mineral salts of the bone. It is demonstrated by a thinning of the bone shadow in the roentgenogram. The author feels that osteoporosis should be classified as symptomatic or asymptomatic. The type with symptoms (the acute bone atrophy of Sudeck) responded to roentgen therapy in 5 of 6 cases. Roentgen therapy is administered in such dosage that erythema and burns will not occur.Peritendinitis Calcarea.  —Sandstrom35 reports the results of roentgen treatment of calcaneous deposits in tendons, muscle and connective tissue in 329 cases. The deposits were located in the neighborhood of the shoulder, elbow, hip and knee joints, wrist, fingers and toes. He also reports on pathologic specimens obtained in 13 cases. In a number of conditions which are commonly classified as subdeltoid bursitis