Walking pattern in 9 women with hip dysplasia 18 months after periacetabular osteotomy

TY - JOUR

T1 - Walking pattern in 9 women with hip dysplasia 18 months after periacetabular osteotomy

AU - Pedersen, Eva N G

AU - Alkjaer, Tine

AU - Søballe, Kjeld

AU - Simonsen, Erik B

N1 - Keywords: Acetabulum; Adult; Ankle Joint; Female; Follow-Up Studies; Gait; Hip Dislocation, Congenital; Hip Joint; Humans; Knee Joint; Middle Aged; Osteoarthritis, Hip; Osteotomy; Recovery of Function; Treatment Outcome; Walking

PY - 2006

Y1 - 2006

N2 - BaCKGROUND: Periacetabular osteotomy improves radiographic predictors of osteoarthrosis and diminishes pain and functional impairment. No changes in function quantified by gait analysis have yet been documented. We evaluated the functional outcome of periacetabular osteotomy in relation to gait. METHODS: The gait pattern of 9 women (median age 39 years) with hip dysplasia who were treated with unilateral periacetabular osteotomy was analyzed before periacetabular osteotomy and an average of 1.5 years afterwards. Data were collected using 5 video cameras and 2 force plates. An inverse dynamics approach was used to calculate sagittal joint angles and moments in the stance phase. RESULTS: Postoperatively, all subjects walked with an increased extension of the knee joint during the entire stance phase compared to the preoperative movement pattern. INTERPRETATION: The subjects achieved a more upright walking pattern but continued to relieve the hip joint by maintaining a reduced flexor moment.

AB - BaCKGROUND: Periacetabular osteotomy improves radiographic predictors of osteoarthrosis and diminishes pain and functional impairment. No changes in function quantified by gait analysis have yet been documented. We evaluated the functional outcome of periacetabular osteotomy in relation to gait. METHODS: The gait pattern of 9 women (median age 39 years) with hip dysplasia who were treated with unilateral periacetabular osteotomy was analyzed before periacetabular osteotomy and an average of 1.5 years afterwards. Data were collected using 5 video cameras and 2 force plates. An inverse dynamics approach was used to calculate sagittal joint angles and moments in the stance phase. RESULTS: Postoperatively, all subjects walked with an increased extension of the knee joint during the entire stance phase compared to the preoperative movement pattern. INTERPRETATION: The subjects achieved a more upright walking pattern but continued to relieve the hip joint by maintaining a reduced flexor moment.

U2 - 10.1080/17453670610045920

DO - 10.1080/17453670610045920

M3 - Journal article

C2 - 16752280

SN - 1745-3674

VL - 77

SP - 203

EP - 208

JO - Acta Orthopaedica

JF - Acta Orthopaedica

IS - 2

ER -