Drehmann sign

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]

References
  1. Drehmann, F. (1979). "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. PMID 463224.
  2. Tannast, Moritz; Siebenrock, Klaus A.; Anderson, Suzanne E. (2007). "Femoroacetabular Impingement: Radiographic Diagnosis—What the Radiologist Should Know". American Journal of Roentgenology. 188 (6): 1540–1552. doi:10.2214/AJR.06.0921. PMID 17515374.
  3. Kamegaya, Makoto; Saisu, Takashi; Nakamura, Junichi; Murakami, Reiko; Segawa, Yuko; Wakou, Masanori (2011). "Drehmann Sign and Femoro-acetabular Impingement in SCFE". Journal of Pediatric Orthopaedics. 31 (8): 853–857. doi:10.1097/BPO.0b013e31822ed320. PMID 22101663.
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