scholarly journals Adverse effects of total hip arthroplasty on the hip abductor and adductor muscle lengths and moment arms during gait

2020 ◽  
Vol 15 (1) ◽  
Author(s):  
Xiangjun Hu ◽  
Nan Zheng ◽  
Wei-Chun Hsu ◽  
Jingwei Zhang ◽  
Huiwu Li ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Adverse Effects ◽  
Hip Arthroplasty ◽  
Adductor Muscle ◽  
Total Hip ◽  
Moment Arms ◽  
Hip Abductor

scholarly journals Adverse Effects of Total Hip Arthroplasty on The Hip Abductor and Adductor Muscle Lengths and Moment Arms During Gait

2020 ◽  
Author(s):  
Xiangjun Hu ◽  
Nan Zheng ◽  
Wei-Chun Hsu ◽  
Jingwei Zhang ◽  
Huiwu Li ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Adverse Effects ◽  
Hip Arthroplasty ◽  
Adductor Muscle ◽  
Total Hip ◽  
Moment Arms ◽  
Adductor Muscles ◽  
Hip Abductor ◽  
The Impact ◽  
Adductor Longus

Abstract Background: Precise evaluation the hip abductor and adductor muscles function in total hip arthroplasty (THA) patients during gait could help prevent postoperative complications and optimize the rehabilitation training program. The purpose of this study was to elucidate the effects of THA on the hip abductor and adductor muscle lengths and moment arms of in vivo patients during gait.Methods: Ten unilateral THA patients received CT scan and dual fluoroscopic imaging for the hip kinematics during gait. The hip abductor and adductor muscle insertions were digitized on the 3D hip model for the determination of their dynamic lines of action and moment arms. Changes in the hip abductor and adductor muscle lengths and moment arms of THA patients between the implanted and non-implanted sides were quantified during gait.Results: The adductor longus, adductor brevis, and pectineus of the implanted hips had significantly (P<0.05) less elongation than that of the non-implanted side during the stance phase. The gluteus medius, gluteus minimus, and piriformis moment arms of the implanted side were significantly shorter. The piriformis muscle moment arm was significantly larger. In the double support phase, the adductor magnus and adductor longus moment arms of the implanted sides were significantly decreased. Conclusions: Results suggested that the adverse effects of THA on hip stability. Development of a rehabilitation program considering the effects of THA is essential. Accurate surgical techniques may reduce the impact of THA on the peripheral muscles.

scholarly journals Simulated hip abductor strengthening reduces peak joint contact forces in patients with total hip arthroplasty

2019 ◽  
Vol 93 ◽  
pp. 18-27 ◽  
Author(s):  
Casey A. Myers ◽  
Peter J. Laz ◽  
Kevin B. Shelburne ◽  
Dana L. Judd ◽  
Joshua D. Winters ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Contact Forces ◽  
Total Hip ◽  
Joint Contact ◽  
Hip Abductor

scholarly journals Iatrogenic Obturator Hip Dislocation with Intrapelvic Migration

2018 ◽  
Vol 2018 ◽  
pp. 1-5
Author(s):  
Shachar Kenan ◽  
Spencer Stein ◽  
Robert Trasolini ◽  
Daniel Kiridly ◽  
Bruce A. Seideman
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Closed Reduction ◽  
Hip Dislocation ◽  
High Energy ◽  
Early Assessment ◽  
Obturator Foramen ◽  
Total Hip ◽  
Joint Biomechanics ◽  
Hip Abductor

Obturator hip dislocations are rare, typically resulting from high-energy trauma in native hips. These types of dislocations are treated with closed reduction under sedation. Open reduction and internal fixation may be performed in the presence of associated fractures. Still rarer are obturator hip dislocations that penetrate through the obturator foramen itself. These types of dislocations have only been reported three other times in the literature, all within native hips. To date, there have been no reports of foraminal obturator dislocations after total hip arthroplasty. We report of the first periprosthetic foraminal obturator hip dislocation, which was caused iatrogenically during attempts at closed reduction of a posterior hip dislocation in the setting of a chronic greater trochanter fracture. Altered joint biomechanics stemming from a weak hip abductor mechanism rendered the patient vulnerable to this specific dislocation subtype, which ultimately required open surgical intervention. An early assessment and identification of this dislocation prevented excessive closed reduction maneuvers, which otherwise could have had detrimental consequences including damage to vital intrapelvic structures. This case report raises awareness to this very rare, yet potential complication after total hip arthroplasty.

scholarly journals Hip abductor strength following total hip arthroplasty: A prospective comparison of the posterior and lateral approach in 100 patients

2001 ◽  
Vol 72 (3) ◽  
pp. 215-220 ◽  
Author(s):  
Nicholas D Downing ◽  
David I Clark ◽  
James W Hutchinson ◽  
Karen Colclough ◽  
Peter W Howard
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Lateral Approach ◽  
Total Hip ◽  
Prospective Comparison ◽  
Hip Abductor ◽  
Abductor Strength

Primary Total Hip Arthroplasty (THA) in Patients with Incomplete Hip Abductor Tears: Does Hip Abductor Repair Improve Outcome?

2014 ◽  
Vol 24 (4) ◽  
pp. 399-404 ◽  
Author(s):  
Michael Betz ◽  
Patrick O. Zingg ◽  
Anna Hirschmann ◽  
Amin Alireza ◽  
Claudio Dora
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Improve Outcome ◽  
Total Hip ◽  
Hip Abductor ◽  
Primary Total Hip Arthroplasty

Impact of Individual Anatomy on the Benefit of cup Medialisation in Total Hip Arthroplasty

2016 ◽  
Vol 26 (6) ◽  
pp. 537-542 ◽  
Author(s):  
Alexandre Terrier ◽  
Valérie Parvex ◽  
Hannes A. Rüdiger
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Gluteus Medius ◽  
Femoral Anteversion ◽  
Patient Specific ◽  
Moment Arm ◽  
Total Hip ◽  
Moment Arms ◽  
The Moment ◽  
Anatomical Parameters

Introduction In total hip arthroplasty, cup medialisation with compensatory increase of femoral offset has been proposed to increase the moment arms of abductor muscles. However, this technique is associated with a loss of acetabular bone stock. Previous data indicates that the potential benefit is not constant among patients and is likely related to patient anatomy. Method Therefore, to be able to select patients who would benefit most from this technique, we measured several anatomical parameters of the pelvis and femur in 15 patients; and evaluated correlations between them and the changes of moment arms associated with cup medialisation. The anatomical measurements were performed on 3-D reconstructions of preoperative CT scans. The moment arms of the gluteus medius and gluteus minimus were calculated for an abduction and flexion movement using patient-specific finite element models. Results 6 anatomical parameters were correlated with muscle moment arm variations after cup medialisation. This effect was not systematic for either muscles or movements. Among all parameters, femoral anteversion was the most important parameter in explaining the effect of cup medialisation. Discussion Patients with small femoral anteversion or low-riding greater trochanter benefit more from cup medialisation in terms of moment arm increase in abduction motion.

scholarly journals Pelvic Inclination Angle and Hip Abductor Muscle Strength after Total Hip Arthroplasty

2013 ◽  
Vol 25 (2) ◽  
pp. 215-219 ◽  
Author(s):  
Akiko Kamimura ◽  
Harutoshi Sakakima ◽  
Masashi Miyazaki ◽  
Megumi Sakasegawa ◽  
Kosei Ijiri ◽  
...  
Keyword(s):  
Muscle Strength ◽  
Total Hip Arthroplasty ◽  
Inclination Angle ◽  
Hip Arthroplasty ◽  
Abductor Muscle ◽  
Total Hip ◽  
Pelvic Inclination ◽  
Hip Abductor
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