scholarly journals Recovery in mechanical muscle strength following resurfacing vs standard total hip arthroplasty – a randomised clinical trial

2011 ◽  
Vol 19 (9) ◽  
pp. 1108-1116 ◽  
Author(s):  
C. Jensen ◽  
P. Aagaard ◽  
S. Overgaard
2021 ◽  
Vol 10 (6) ◽  
pp. 1235
Author(s):  
Michael Fuchs ◽  
Marie-Anne Hein ◽  
Martin Faschingbauer ◽  
Mirco Sgroi ◽  
Ralf Bieger ◽  
...  

Because of preservation of proximal femoral bone stock and minimized soft tissue trauma, short-stem implants are becoming increasingly important in total hip arthroplasty (THA). The postulated advantage regarding the functional outcome has not been verified. We hypothesized an increased abductor muscle strength by the use of a short-stem design. Seventy consecutive patients of a randomized clinical trial were included. Of these, 67 patients met the inclusion criteria after 12 months. Thirty-five patients received a standard straight stem and 32 patients a short-stem femoral component. All surgeries were performed by a modified direct lateral approach. Isometric muscle strength of the hip abductors was evaluated preoperatively 3 and 12 months after surgery. Harris hip score (HHS) and Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC) scores were evaluated. After three months, there were no differences between the two groups; the abductor force was comparable to the preoperative initial values. After 12 months, a significant increase in muscle strength for the short stem patient group compared to preoperative baseline values was measured (straight-stem THA, 0.09 Nm/kg ± 0.4, p = 0.32; short-stem THA, 0.2 Nm/kg ± 0.3, p = 0.004). Comparison of the 12-month postoperative total HHS and WOMAC revealed no significant differences between both groups. A significant increase in hip abductor muscle strength 12 months after short-stem THA compared to conventional-stem THA was observed.


2019 ◽  
Vol 99 (11) ◽  
pp. 1453-1460
Author(s):  
Dana L Judd ◽  
Victor A Cheuy ◽  
Jeri E Forster ◽  
Cory L Christiansen ◽  
Jennifer E Stevens-Lapsley

Abstract Background Total hip arthroplasty (THA) is a common procedure, yet persistent deficits in functional performance exist after surgery. These deficits may be related to movement compensations observed after THA, which negatively affect quality of life and may increase morbidity and health care utilization, including in the veteran population. However, the best rehabilitative approach to remediating movement compensations and physical function deficits has not been determined. Objective The objective is to determine if a functional strength integration intervention (FSI), as part of a post-THA rehabilitation program, improves movement compensation, physical function, muscle strength, and self-reported outcome measures more than a control group (CON) undergoing a standard of care exercise program. Design This is a 2-arm randomized, controlled clinical trial. Setting The Veteran Affairs outpatient physical therapy clinics and academic research laboratory will be the settings. Participants One hundred veterans undergoing THA for hip osteoarthritis will be included in the study. Interventions Participants will be randomized to either the FSI or CON group and participate in visits of physical therapy over 8 weeks. The FSI protocol will include targeted exercise to improve muscular control and stability around the hip and trunk to minimize movement compensation during daily activity combined with progressive resistance exercise. The CON protocol will include patient education, flexibility activity, and low load resistance exercise. Measurements Functional performance, muscle strength and endurance, and self-reported outcomes will be measured at baseline (prior to surgery), midway through intervention (6 weeks after surgery), at the end of intervention (10 weeks after surgery), and 26 weeks after THA. Limitations The inability to blind treating therapists to study arm allocation is a limitation. Conclusions The proposed study aims to determine if targeted FSI can affect movement compensation to improve functional outcomes after THA more than traditional rehabilitation paradigms.


2016 ◽  
Vol 41 (6) ◽  
pp. 1113-1118 ◽  
Author(s):  
Caroline Scemama ◽  
Philippe Anract ◽  
Valérie Dumaine ◽  
Antoine Babinet ◽  
Jean Pierre Courpied ◽  
...  

Author(s):  
Tomáš Vodička ◽  
Michal Bozděch ◽  
Marta Gimunová ◽  
Lenka Svobodová ◽  
Jiří Zháněl ◽  
...  

Loss of muscle strength characterizes the period before total hip arthroplasty (THA). Little is known about whether muscle strength imbalances caused by muscle strength decline could be considered another clinical predictor for THA. This study aimed to determine whether muscle imbalances may be used as a clinical predictor for THA surgery. Thirty-six participants were enrolled in the study. Eighteen patients had THA (THA group), while 18 were healthy elders (CON group). Ipsilateral (H/Q) and bilateral (% Def) muscle imbalances of the knee were assessed. THA patients showed impairment of the extensors on the affected extremity compared to those unaffected. A comparison between the groups proved there were weakened flexors in the THA group on both extremities. A comparison of the imbalances revealed a significant bilateral imbalance of the extensors and ipsilateral imbalance of both extremities in the THA group. We computed two logistic regressions using bilateral and ipsilateral imbalance as the predictors of THA surgery. We found that bilateral extensor imbalance may be used as a predictor for THA (Nagelkerke R2 = 0.22). A decrease of the bilateral extensors imbalance by 8% decreases the probability of THA by 8%. The most interesting finding is that the evaluation of the bilateral extensor imbalance may be used as another clinical predictor for THA.


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