Drehmann sign explained

The Drehmann sign describes a clinical test of examining orthopedic patients and is widely used in the functional check of the hip joint. It was first described by Gustav Drehmann (Breslau, 1869–1932).^[1]

The Drehmann sign is positive if an unavoidable passive external rotation of the hip occurs when performing a hip flexion. In addition, an internal rotation of the respective hip joint is either not possible or accompanied by pain when forcefully induced.^[2]

The positive Drehmann sign is a typical clinical feature in slipped capital femoral epiphysis (SCFE), the impingement syndrome of the acetabulum-hip, or in osteoarthritis of the hip joint.^[3]

Notes and References

1. 463224 . 1979 . Drehmann . F. . Drehmann's sign. A clinical examination method in epiphysiolysis (slipping of the upper femoral epiphysis). Description of signs, aetiopathogenetic considerations, clinical experience (author's transl) . Zeitschrift für Orthopadie und Ihre Grenzgebiete . 117 . 3 . 333–44 .
2. 10.2214/AJR.06.0921 . 17515374 . Femoroacetabular Impingement: Radiographic Diagnosis—What the Radiologist Should Know . American Journal of Roentgenology . 188 . 6 . 1540–1552 . 2007 . Tannast . Moritz . Siebenrock . Klaus A. . Anderson . Suzanne E. .
3. 10.1097/BPO.0b013e31822ed320 . 22101663 . Drehmann Sign and Femoro-acetabular Impingement in SCFE . Journal of Pediatric Orthopaedics . 31 . 8 . 853–857 . 2011 . Kamegaya . Makoto . Saisu . Takashi . Nakamura . Junichi . Murakami . Reiko . Segawa . Yuko . Wakou . Masanori . 205500941 .