title: A new clinical test in diagnosing quadriceps tendon rupture.
abstract: BACKGROUND
  Extensor mechanism ruptures might be easily overlooked and misdiagnosed, and delayed diagnosis of quadriceps tendon rupture is frequent. However, the literature recommends early surgical repair within 72 h.
  
  
  METHODS
  This paper describes a new simple clinical diagnostic test that directly evaluates the integrity of the distal 5 cm of the quadriceps tendon itself. It consists of inserting a needle in the tendon, proximal to the suspected rupture and mobilising the knee joint.
  
  
  RESULTS
  The suspected ruptured quadriceps tendons with a positive 'needle' diagnostic test were confirmed intra-operatively.
  
  
  CONCLUSIONS
  This minimally invasive and easily available technique should be considered in the diagnostic work-up and treatment planning of patients with suspected tears of the quadriceps tendon.
authors: Hôpital Orthopédique de la Suisse Romande, University of Lausanne, Lausanne, Switzerland. Brigitte.Jolles-Haeberli@chuv.ch
authors: B M
authors: BM
authors: Jolles
authors: R
authors: R
authors: Garofalo
authors: L
authors: L
authors: Gillain
authors: C
authors: C
authors: Schizas
mesh_terms: D006801:Humans; D009339:Needles; D010808:Physical Examination / Q000592:standards*; D052097:Quadriceps Muscle / Q000293:injuries*; D012421:Rupture / Q000175:diagnosis; D012680:Sensitivity and Specificity; D013708:Tendon Injuries / Q000175:diagnosis*