Normal radiological unossified hip joint space and femoral head size development during growth in 675 children and adolescents

2016 ◽  
Vol 30 (2) ◽  
pp. 267-275 ◽  
Author(s):  
Veronika Wegener ◽  
Gabriele Jorysz ◽  
Andreas Arnoldi ◽  
Sandra Utzschneider ◽  
Bernd Wegener ◽  
...  
Keyword(s):  
Femoral Head ◽  
Children And Adolescents ◽  
Hip Joint ◽  
Joint Space ◽  
Head Size ◽  
Femoral Head Size

scholarly journals The effect of femoral head size on the cement mantle in the layered artificial hip joint

2019 ◽  
Author(s):  
Gilar Pandu Annanto ◽  
Jamari ◽  
Eko Saputro ◽  
Athanasius Priharyoto Bayuseno ◽  
Rifky Ismail ◽  
...  
Keyword(s):  
Femoral Head ◽  
Hip Joint ◽  
Cement Mantle ◽  
Head Size ◽  
Femoral Head Size ◽  
Artificial Hip Joint ◽  
Artificial Hip

scholarly journals Femoral Head Size Does Not Affect Ion Values in Metal-on-Metal Total Hips

2010 ◽  
Vol 469 (6) ◽  
pp. 1642-1650 ◽  
Author(s):  
Mitchell Bernstein ◽  
Alan Walsh ◽  
Alain Petit ◽  
David J. Zukor ◽  
John Antoniou
Keyword(s):  
Femoral Head ◽  
Head Size ◽  
Femoral Head Size ◽  
Metal On Metal

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.

Hip simulator evaluation of the effect of femoral head size on sequentially cross-linked acetabular liners

Wear ◽  
2007 ◽  
Vol 263 (7-12) ◽  
pp. 1034-1037 ◽  
Author(s):  
Lizeth Herrera ◽  
Reginald Lee ◽  
Jason Longaray ◽  
Aaron Essner ◽  
Aiguo Wang
Keyword(s):  
Femoral Head ◽  
Head Size ◽  
Femoral Head Size ◽  
Hip Simulator

scholarly journals The effects of venting and capsulotomy on traction force and hip distraction in hip arthroscopy

2020 ◽  
Author(s):  
Dillon C O’Neill ◽  
Matthew L Hadley ◽  
Temitope F Adeyemi ◽  
Stephen K Aoki ◽  
Travis G Maak
Keyword(s):  
Femoral Head ◽  
Hip Arthroscopy ◽  
Traction Force ◽  
Substantial Improvement ◽  
Head Size ◽  
Femoral Head Size ◽  
Post Intervention ◽  
Before And After ◽  
Hip Distraction

Abstract This study evaluated the effects of venting and capsulotomy on the ratio of normalized distraction distance to traction force, correlating this trend with patient demographic factors. A ratio was chosen to capture the total effect of each intervention on the hip joint. During primary hip arthroscopy, continuous traction force was recorded, and fluoroscopic images were acquired to measure joint distraction before and after the application of traction, venting and interportal capsulotomy. Distraction–traction force ratios were compared using a one-sided paired t-test. A linear regression model was used to determine the relationship between age, sex and body mass index and pre- and post-intervention distraction–traction force ratios. Seventy-two adult patients and 73 hips were included. There was an increase in hip distraction with a decrease in traction force post-venting and capsulotomy (both P’s &lt;0.001). Mean normalized distraction distance increased 1.5% of femoral head size after venting and an additional 2.2% of femoral head size after capsulotomy. Mean traction force decreased 2.2% (14.7 N) after venting and 2.3% (15.3 N) after capsulotomy. Female sex significantly correlated with larger differences in both pre- and post-venting capsulotomy ratios. Venting and capsulotomy both independently improve the ratio of normalized distraction distance to traction force when performed in vivo. However, the effect sizes of each intervention are small and of questionable clinical significance. Specifically, when adequate distraction for safe surgical hip access cannot be obtained despite application of significant traction force, venting and capsulotomy after the application of traction may not afford substantial improvement.

Sign in / Sign up

Export Citation Format

Share Document