A study of the effect of the femoral head diameter on prosthetic hip joint dislocation using a hip-joint motion simulator

2009 ◽  
Author(s):  
K. Kiguchi ◽  
T. Horie ◽  
A. Yamashita ◽  
M. Ueno ◽  
T. Kobayashi ◽  
...  
Keyword(s):  
Femoral Head ◽  
Hip Joint ◽  
Joint Motion ◽  
Joint Dislocation ◽  
Head Diameter ◽  
Femoral Head Diameter ◽  
Motion Simulator

Robotic-Arm Assisted Total Hip Arthroplasty Results in Smaller Acetabular Cup Size in Relation to the Femoral Head Size: A Matched-Pair Controlled Study

2017 ◽  
Vol 27 (2) ◽  
pp. 147-152 ◽  
Author(s):  
Carlos Suarez-Ahedo ◽  
Chengcheng Gui ◽  
Timothy J. Martin ◽  
Sivashankar Chandrasekaran ◽  
Parth Lodhia ◽  
...  
Keyword(s):  
Femoral Head ◽  
Head Size ◽  
Robotic Arm ◽  
Matched Pair ◽  
Femoral Head Size ◽  
Acetabular Cup ◽  
Acetabular Bone ◽  
Head Diameter ◽  
Total Hip ◽  
Femoral Head Diameter

Purpose To compare the acetabular component size relative to the patient's native femoral head size between conventional THA (CTHA) approach and robotic-arm assisted THA (RTHA) to infer which of these techniques preserved more acetabular bone. Methods Patients were included if they had primary osteoarthritis (OA) and underwent total hip replacement between June 2008 and March 2014. Patients were excluded if they had missing or rotated postoperative anteroposterior radiographs. RTHA patients were matched to a control group of CTHA patients, in terms of preoperative native femoral head size, age, gender, body mass index (BMI) and approach. Acetabular cup size relative to femoral head size was used as a surrogate for amount of bone resected. We compared the groups according to 2 measures describing acetabular cup diameter ( c) in relation to femoral head diameter ( f): (i) c-f, the difference between cup diameter and femoral head diameter and (ii) ( c-f)/ f, the same difference as a fraction of femoral head diameter. Results 57 matched pairs were included in each group. There were no significant differences between groups for demographic measures, femoral head diameter, or acetabular cup diameter (p>0.05). However, measures (i) and (ii) did differ significantly between the groups, with lower values in the RTHA group (p<0.02). Conclusions Using acetabular cup size relative to femoral head size as an approximate surrogate measure of acetabular bone resection may suggest greater preservation of bone stock using RTHA compared to CTHA. Further studies are needed to validate the relationship between acetabular cup size and bone loss in THA.

1A2-K08 Development of a 7 DOF Hip Joint Motion Simulator

2007 ◽  
Vol 2007 (0) ◽  
pp. _1A2-K08_1-_1A2-K08_2
Author(s):  
Makoto SASAKI ◽  
Kazuo KIGUCHI ◽  
Akira YAMASHITA ◽  
Masaru UENO ◽  
Tsuneyuki KOBAYASHI ◽  
...  
Keyword(s):  
Hip Joint ◽  
Joint Motion ◽  
Motion Simulator

Investigation of Wear Amounts on Artificial Hip Joints with Different Femoral Head Diameter

2021 ◽  
pp. 286-293
Author(s):  
Zhouyao Weng ◽  
Xiuling Huang ◽  
Zikai Hua ◽  
Qinye Wang ◽  
Leiming Gao
Keyword(s):  
Femoral Head ◽  
Hip Joints ◽  
Head Diameter ◽  
Femoral Head Diameter ◽  
Artificial Hip ◽  
Artificial Hip Joints

Structure and content of infants physical rehabilitation with hip joint dysplasia

2019 ◽  
pp. 88-96
Author(s):  
Liliya I. DUBROVINA ◽  
Galina I. DERYABINA ◽  
Viktoriya L. LERNER
Keyword(s):  
Femoral Head ◽  
Medical Treatment ◽  
Hip Joint ◽  
Musculoskeletal System ◽  
Articular Surface ◽  
Rehabilitation Program ◽  
Physical Rehabilitation ◽  
Common Disease ◽  
Hip Joints ◽  
Joint Dislocation

Hip joint dysplasia among children - congenital hypoplasia of femoral head, or congenital increased mobility of the joint due to the weakness of the ligamentous and muscular apparatus. Such a violation of the hip joint elements development (one or both) leads to an incorrect interposition of the joint structures, whereby the femoral head is displaced relative to the articular surface, formed subluxation, pre-dislocation or joint dislocation. This is a severe and common disease of the musculoskeletal system. Since medical treatment for dysplasia among newborn is not provided, and surgery is required only in extreme cases, therefore, active methods in the fight against this pathology are: specific orthopedic devices, physiotherapy, massage and exercise therapy. Thanks to these components, treatment therapy will strengthen the muscles, accelerate recovery, it will be fast and unobtrusive for the child. In this regard, we have developed the structure and content of physical rehabilitation for infants with hip joint dysplasia. This course was designed for four weeks and was developed a set of rehabilitation measures. The content of the course of physical rehabilitation includes orthopedic correction with the help of special devices, massage, therapeutic gymnastics in combination with fitball gymnastics and therapeutic swimming, physiotherapy. To assess the effectiveness of the physical rehabilitation program developed by us, we conduct an ascertaining pedagogical experiment - testing, clearly demonstrating the functional and motor state of the hip joints of the subjects before the beginning of the forming pedagogical experiment and at its end.

Measurement of femoral head diameter and its correlation with the femur length

2017 ◽  
Vol 66 ◽  
pp. S22
Author(s):  
Diana Laishram ◽  
Shanta Chandrasekaran ◽  
Deepti Shastri
Keyword(s):  
Femoral Head ◽  
Femur Length ◽  
Head Diameter ◽  
Femoral Head Diameter

The ratio of femoral head diameter to pelvic height in the normal hips of a Chinese population

2013 ◽  
Vol 24 (6) ◽  
pp. 947-951 ◽  
Author(s):  
Yanbo Zhang ◽  
Jinlan Jiang ◽  
Chenyu Wang ◽  
Jianlin Zuo ◽  
Modi Yang ◽  
...  
Keyword(s):  
Femoral Head ◽  
Chinese Population ◽  
Head Diameter ◽  
Femoral Head Diameter
Sign in / Sign up

Export Citation Format

Share Document