title: Influence of different types of sockets on the range of motion of the hip joint by the transfemoral amputee.
abstract: OBJECTIVE
  To compare the individual influence of different types of socket designs on the hip's range of motion in transfemoral amputees.
  
  
  METHODS
  We studied the kinematic parameters of the hip joint for patients with transfemoral amputation under four experimental conditions: without a socket, with a quadrilateral socket, an ischial containment socket, an ischial-ramal containment socket. An opto-electronic system was used to record the movements in the frontal and sagittal planes for a 3D movement analysis.
  
  
  RESULTS
  The hip's range of motion is always significantly restricted with the sockets, regardless of their type, compared to the situation without a socket (P<0.05). The adduction and extension movements are the most restricted. The global amplitude (i.e., the sum of all the ranges of motion) is significantly higher for the ischial-ramal containment socket (139.5°) compared to the ischial containment socket (125.4°, P=0.002) and the quadrilateral socket (127.3°, P=0.01). No comparable study exists in the literature, especially for the ischial-ramal containment socket.
  
  
  CONCLUSIONS
  The ischial-ramal containment socket seems to be the most interesting type of socket in terms of the criterion studied. It still remains to identify the possible functional improvements that this design would provoke during gait and during daily activities.
authors: Centre de Médecine Physique et de Réadaptation de la Tour de Gassies, 33523 Bruges Cedex, France. rklotz.gassies@ugecamaq.fr
authors: R
authors: R
authors: Klotz
authors: B
authors: B
authors: Colobert
authors: M
authors: M
authors: Botino
authors: I
authors: I
authors: Permentiers
mesh_terms: D000328:Adult; D000671:Amputation, Surgical / Q000534:rehabilitation*; D000672:Amputation Stumps; D001186:Artificial Limbs; D001696:Biomechanical Phenomena; D004867:Equipment Design; D005684:Gait; D006621:Hip Joint / Q000503:physiopathology*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011187:Posture; D016059:Range of Motion, Articular