The effectiveness and influencing factors of the ‘Y’ line technique in reducing the leg length discrepancy after total hip arthroplasty

2021 ◽  
Author(s):  
Wenshu Jin ◽  
Huaqiang Sun ◽  
Xudong Duan ◽  
Yange Gu ◽  
zhang zhao ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Lower Limb ◽  
Limb Length ◽  
Leg Length Discrepancy ◽  
Leg Length ◽  
X Ray ◽  
Length Discrepancy ◽  
Group A ◽  
Group B

Abstract Objective: To introduce a surgical technique (the ‘Y’ line technique) which is to control the leg length discrepancy (LLD) after total hip arthroplasty.Methods: A total of 350 patients were selected; 134 patients who were used the ‘Y’ line technique to control lower limb length were included in Group A and 166 patients treated with free hand methods to control lower limb length were included in Group B. 50 patients who were taken standard anteroposterior X-ray of bilateral hips preoperatively and used the ‘Y’ line technique during the operation were included in Group C. Results: The postoperative LLD of the three groups was statistically significant (p < 0.001). There were significant differences statistically in comparison between any two groups (P<0.01). Severe unequal length rates of the lower extremities (LLD > 10 mm) were 5.97% (8/134) in Group A, 14.3% (24/166) in Group B and 0% (0/50) in Group C – the difference was statistically significant (p < 0.001). There were significant differences between Group A and Group B, Group B and Group C (P < 0.05), but there was no significant difference between Group A and Group C (P = 0.078).Conclusion: The ‘Y’ line technique, which does not increase the operation time, can effectively reduce postoperative LLD. Insufficient internal rotation of the healthy lower extremity and the low projection position in the preoperative anteroposterior X-ray of bilateral hips were important factors affecting the accuracy of the ‘Y’ line technique.

scholarly journals The intraoperative use of a calliper predicts leg length and offset after total hip arthroplasty. Component subsidence influences the leg length

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Maliha Fansur ◽  
Nagib A. Yurdi ◽  
Reinhard Stoewe
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Limb Length ◽  
Leg Length Discrepancy ◽  
Long Term Results ◽  
Leg Length ◽  
X Ray ◽  
Total Hip ◽  
Length Discrepancy ◽  
Post Surgery

Abstract Background The purpose of total hip arthroplasty (THA) post-surgery and proper physiotherapy is positive recovery for the patient. Consideration is given to hip replacement biomechanics by ensuring no discrepancies in limb length (LL) and a stable prosthesis. Therefore, the patient must have proper preoperative planning and communication and a clear understanding of what to expect. Methods A prospective series of 59 THA operated by a single surgeon via Hardinge approach was studied, using an intraoperative calliper (CAL) to predict the change of LL and offset. We compared the results of the intraoperative changes before and after THA implantation with the reference of these values on anteroposterior x-ray pelvis. The importance of leg length balance and a good offset restoration is questioned, and the effect of component subsidence on leg length is considered. Results The average preoperative leg length discrepancy was −6.0 mm, postoperatively +3.6 mm. There was a strong correlation between the CAL measurements and the values on the x-ray (LL, r=0.873, p<0.01; offset, r=0.542, p<0.01). Reliability is better for limb length than for offset. These results are comparable within the literature and the statistical results from other studies reviewed. In addition, we evaluate the importance of subsidence of the prosthesis components for long-term results. Conclusion The intraoperative use of CAL gives excellent results in predicting the final LL and offset after THA. Considering subsidence of prosthesis components, a target zone around +5 mm might be more suitable for leg length directly postoperatively. Moreover, surgeons must discuss the topic of leg length discrepancy (LLD) intensively with the patient pre-operatively. Level of evidence Level 4, prospective cohort study

scholarly journals Leg Length and Offset After Total Hip Arthroplasty: The Intraoperative use of a Calliper Improves the Results. Should Component Subsidence Influence the Target for Leg Length?

2021 ◽  
Author(s):  
Maliha Fansur ◽  
Nagib Atallah Yurdi ◽  
Reinhard Bernhard Josef Stoewe
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Limb Length ◽  
Leg Length Discrepancy ◽  
Long Term Results ◽  
Leg Length ◽  
X Ray ◽  
Total Hip ◽  
Length Discrepancy ◽  
Post Surgery

Abstract BackgroundThe purpose of total hip arthroplasty (THA) post-surgery and proper physiotherapy is positive recovery for the patient. Consideration is given to hip replacement biomechanics by ensuring no discrepancies in limb length (LL) and a stable prosthesis. Therefore, the patient must have proper preoperative planning and communication and a clear understanding of what to expect.MethodsA prospective series of 59 THA operated by a single surgeon via Hardinge approach was studied, using an intraoperative calliper (CAL) to predict the change of LL and offset. We compared the results of the intraoperative changes before and after THA implantation with the reference of these values on antero-posterior x-ray pelvis. The importance of leg length balance and a good offset restoration is questioned, and the effect of component subsidence on leg length is considered.ResultsThe average preoperative leg length discrepancy was -6.0 mm, postoperatively +3.6 mm. There was a strong correlation between the CAL measurements and the values on the x-ray (LL, r=0.873, p<0.01; offset, r=0.542, p<0.01). Reliability is better for limb-length than for offset. These results are comparable within the literature and the statistical results from other studies reviewed. In addition, we evaluate the importance of subsidence of the prosthesis components for long term results.ConclusionThe intraoperative use of CAL gives excellent results in predicting the final LL and offset after THA. Considering subsidence of prosthesis components, a target zone around +5 mm might be more suitable for leg length directly postoperatively. Moreover, surgeons must discuss the topic of leg length discrepancy (LLD) intensively with the patient pre-operatively.Level of evidence: Level 4, prospective cohort study

Leg length discrepancy and lower limb alignment after total hip arthroplasty in unilateral hip osteoarthritis patients

2013 ◽  
Vol 18 (6) ◽  
pp. 969-976 ◽  
Author(s):  
Hiroshi Fujimaki ◽  
Yutaka Inaba ◽  
Naomi Kobayashi ◽  
Taro Tezuka ◽  
Yasuhide Hirata ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Lower Limb ◽  
Hip Osteoarthritis ◽  
Leg Length Discrepancy ◽  
Leg Length ◽  
Limb Alignment ◽  
Lower Limb Alignment ◽  
Total Hip ◽  
Length Discrepancy

Changes in patient-perceived leg length discrepancy following total hip arthroplasty

2021 ◽  
Author(s):  
Kentaro Iwakiri ◽  
Yoichi Ohta ◽  
Takashi Fujii ◽  
Yukihide Minoda ◽  
Akio Kobayashi ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Leg Length Discrepancy ◽  
Leg Length ◽  
Total Hip ◽  
Length Discrepancy
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