Dynamic stability during walking following unilateral total hip arthroplasty

Sliwinski, Martha Macht; Sisto, Sue Ann; Batavia, Mitchell; Chen, Baizhu; Forrest, Gail

doi:10.1016/s0966-6362(03)00039-0

Cited by 25 publications

(21 citation statements)

References 21 publications

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“…Consistent with the literature, by 16 weeks postsurgery, patients undergoing THA had an increase in gait velocity and stride length compared with before surgery (Table 4) [3,5,23,24,30,38,43,47]. We observed no major differences between patients and control subjects at 16 weeks postsurgery for these variables, suggesting improved range of motion and/or hip muscle strength after surgery and more efficient leg progression during gait [32].…”

Section: Discussionsupporting

confidence: 79%

“…Compared with presurgery, trunk pitch and roll angles during gait progressively decrease by 4 and 12 months postsurgery. After THA, patients also showed a slight lean of the CoM toward the operated limb during the double-support phase of gait [43]. This pattern of dynamic balance control during gait is apparently different from that of healthy older adults, but the study did not report how subjects performed preoperatively.…”

Section: Introductionmentioning

confidence: 65%

“…and shorter stride length than various control subjects up to 4 years [24,38,43] and even 10 years [3]. Trunk pitch (forward-backward) and roll (side-to-side) have been used to reflect balance control of patients undergoing THA during gait [26].…”

Section: Introductionmentioning

confidence: 99%

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Short-term Recovery of Balance Control after Total Hip Arthroplasty

Lugade

Klausmeier

Jewett

et al. 2008

Clinical Orthopaedics &Amp; Related Research

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Hip osteoarthritis leads to chronic pain and deteriorated joint function, which affect weightbearing and balance during gait. THA effectively restores hip function but it is not known whether THA restores balance during gait. We hypothesized patients would have greater frontal plane and smaller sagittal plane center of mass-center of pressure inclination angles preoperatively compared with control subjects, and THA would improve these inclination angles by 16 weeks postsurgery. Compared with control subjects, we observed greater frontal plane inclination angles and smaller sagittal plane angles preoperatively, indicating gait imbalance. These inclination angles were improved postoperatively, providing better balance control. Despite improvement, patients differed in frontal and sagittal plane inclination angles compared with control subjects. This suggests residual deficits in dynamic balance control in patients undergoing THA before and up to 4 months after surgery.

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Section: Discussionsupporting

confidence: 79%

Section: Introductionmentioning

confidence: 65%

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Short-term Recovery of Balance Control after Total Hip Arthroplasty

Lugade

Klausmeier

Jewett

et al. 2008

Clinical Orthopaedics &Amp; Related Research

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“…In contrast, Perron et al reported an average walking speed of 1.07 m/s for a group of 18 THA female patients six-18 months post-operatively, which was significantly less than for a group of age-matched normal female subjects [9]. Loizeau et al reported an average speed of 0.78 m/s for a [11]. Patients were tested between two months and two years post-operatively and two different surgical procedures (cemented and uncemented) were considered.…”

Section: Discussionmentioning

confidence: 89%

Temporospatial parameters of hip replacement patients ten years post-operatively

Bennett

Humphreys

O’Brien

et al. 2008

International Orthopaedics (SICOT)

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While short-term outcome studies of patients following total hip arthroplasty (THA) have shown compromised walking ability, it is often assumed that temporospatial parameters will return to normal levels at long-term follow-up, especially for younger patients. Temporospatial parameters were determined for 149 THA patients selected arbitrarily from routine ten-year post-operative review clinics. Patients were divided into five age groups: 54-64, 65-69, 70-74, 75-79 and over 80 years. The parameters of speed, step length, stride length and cadence were measured. All age groups displayed significantly reduced velocity, step length and stride length compared to an age-matched normal group. There was no difference in most of the temporospatial parameters between the age groups. This study shows that even younger THA patients at long-term follow-up do not regain normal age-matched walking characteristics.Résumé Alors que les études présentant les patients ayant bénéficié d'une prothèse totale de hanche montrent une altération immédiate des possibilités de marche, il semble assuré que les paramètres temporospatiaux se normalisent après un long suivi, spécialement chez les patients jeunes. Ces paramètres temporospatiaux ont été déterminés chez 149 patients sélectionnés, de façon arbitraire et routinière après avoir été revus 10 ans après l'intervention chirurgicale. 10 ans après l'intervention, les patients ont été divisés en 5 groupes d'âge: 54-64, 65-69, 70-74, 75-79 et après 80 ans. Les différents paramètres de marche, vitesse, escalier, cadence, etc. ont été mesurés. Quel que soit l'âge, il y a une diminution significative de la rapidité, de la longueur du pas et de longueur de foulée comparés à un groupe témoin normal. Il n'y a pas la plupart du temps de différence, des paramètres temporospatiaux entre les différ-ents groupes d'âge. Cette étude montre que, même chez les patients jeunes, la mise en place d'une prothèse totale de hanche, ne permet pas, à long terme, de récupérer tous les paramètres normaux de la marche.

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“…Frequency-domain estimates include a variety of summary statistics describing the spectral distribution of the CoP (Era and Heikkinen, 1985;Maki et al, 1990;Mauritz et al, 1979;Mizrahi and Susak, 1989;Motta et al, 1991). These CoP statistics are often used because they represent the generalized control forces necessary to maintain the center-of-mass (CoM) over the base-of-support (Peterka, 2003;Sliwinski et al, 2004). The relation between CoP and CoM movements provide further insight into the control of standing balance (Winter et al, 1998).…”

Section: Introductionmentioning

confidence: 99%

Dynamic stability differences in fall-prone and healthy adults

Granata

Lockhart

2008

Journal of Electromyography and Kinesiology

139

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Typical stability assessments characterize performance in standing balance despite the fact that most falls occur during dynamic activities such as walking. The objective of this study was to identify dynamic stability differences between fall-prone elderly individuals, healthy age-matched adults, and young adults. Three-dimensional video-motion analysis kinematic data were recorded for 35 contiguous steps while subjects walked on a treadmill at three speeds. From this data, we estimated the vector from the center-of-mass to the center of pressure at each foot-strike. Dynamic stability of walking was computed by methods of Poincare analyses of these vectors. Results revealed that the fall-prone group demonstrated poorer dynamic stability than the healthy elderly and young adult groups. Stability was not influenced by walking velocity, indicating that group differences in walking speed could not fully explain the differences in stability. This pilot study supports the need for future investigations using larger population samples to study fall-prone individuals using nonlinear dynamic analyses of movement kinematics.

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Dynamic stability during walking following unilateral total hip arthroplasty

Cited by 25 publications

References 21 publications

Short-term Recovery of Balance Control after Total Hip Arthroplasty

Short-term Recovery of Balance Control after Total Hip Arthroplasty

Temporospatial parameters of hip replacement patients ten years post-operatively

Dynamic stability differences in fall-prone and healthy adults

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