[Results with Garth's modified roentgen exposures].

With the apical oblique view of Garth, a modified ap-projection of the shoulder, the postero-lateral aspect of the humeral head (Hill-Sachs defect) and the antero-inferior glenoidal rim (Bankart lesion) are well demonstrated. Additionally a posterior dislocation of the shoulder can be detected and an orthograde view of the glenohumeral joint can be obtained at the same time. The affected arm is kept close to the body which is advantageous in case of a fresh trauma. The apical oblique view has worked well at the radiological follow-up of 56 patients 10-23 years after the Eden-Hybbinette-Lange operation for chronic shoulder instability for an assessment of a Hill-Sachs lesion and of the fate of the bone block antero-inferiorly. The results are described. Disadvantages of the apical oblique view are a geometrical distortion and an exposure to radiation which is three times that of a standard ap x-ray picture.