scholarly journals Periprosthetic Fracture of Greater Trochanter in Total Hip Replacement Stemming from Pin Site Placement in Navigation-Assisted Surgery

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
Ava Brozovich ◽  
David R. Lionberger
Keyword(s):  
Computer Assisted Surgery ◽  
Computer Assisted ◽  
Leg Length ◽  
Greater Trochanter ◽  
Total Hip ◽  
Tibial Stress Fracture ◽  
Implant Placement ◽  
Total Knee ◽  
Pin Site ◽  
Suture Abscess

Surgeons are looking to use computer computer-assisted surgery (CAS) in total hip arthroplasty (THA) in order to quantify leg length measurement, angular cup placement, and enhance stability to provide enhanced accuracy in implant placement. As a result, CAS in THA is gaining popularity. This technology employs the use of pins and provides the surgeon with real-time feedback on positioning intraoperatively. Previous total knee arthroplasty (TKA) literature has reported pin-associated complications such as infections, neuropraxia, and suture abscess. To our knowledge, there have been reports of tibial stress fracture after CAS TKA, but this is the first report of a pin causing fracture of the greater trochanter leading to dislocation in THA. Further studies may be warranted to optimize pin placement for trackers to prevent fractures of the greater trochanter.

scholarly journals Comparison of Functional Outcome Between Computer Navigated Total Knee Replacement with Conventional Method

2018 ◽  
Vol 17 (1) ◽  
Author(s):  
Ahmad Munir Hashim ◽  
Mohd Shahidan b. Noor Rahin ◽  
Ahmad Hafiz b. Zulkifly
Keyword(s):  
Total Knee Replacement ◽  
Functional Outcome ◽  
Knee Replacement ◽  
Conventional Method ◽  
Computer Assisted Surgery ◽  
Computer Assisted ◽  
Implant Placement ◽  
Sf 36 ◽  
Significant Difference ◽  
Total Knee

Introduction: Total knee replacement (TKR) is considered one of most successful treatment in treating knee arthritis. It aims at restoring neutral mechanical axis, balanced ligaments and normal Q angle. Surgeons have been using manual jig to achieved perfect implant placement. Since 2002 computer assisted surgery (CAS) is gaining popularity in TKR surgery to improved accuracy of implant placement. In a large meta-analysis by Bauwen’s et al, computer assisted surgery reduced number of patients with post-operative malalignment >3 degree. In another study by Kim et al found there was no no difference in alignment between computer assisted and conventional method TKR in bilateral TKR with one using conventional and the other computer assisted. In our study we compared the functional outcome between these two methods. Materials and Methods: This was a cross-sectional study conducted in Penang General Hospital comparing the functional outcome using SF-36 questionnaire and Hospital for Special Surgery (HSS) knee scoring. It involved 35 knees in each arm. All patients were operated by single surgeon using same type of implant and navigation system. Patients with post-operative complications were excluded. Results: We found that there was no significant difference (p<0.05) in both SF-36 and HSS knee score using U Mann Whitney test. Conclusion: There was no difference in functional outcome between conventional TKR and CAS.

scholarly journals Does computer-assisted surgery benefit leg length restoration in total hip replacement? Navigation versus conventional freehand

2009 ◽  
Vol 35 (1) ◽  
pp. 19-24 ◽  
Author(s):  
Alfonso Manzotti ◽  
Pietro Cerveri ◽  
Elena De Momi ◽  
Chris Pullen ◽  
Norberto Confalonieri
Keyword(s):  
Total Hip Replacement ◽  
Hip Replacement ◽  
Computer Assisted Surgery ◽  
Computer Assisted ◽  
Leg Length ◽  
Total Hip

Accuracy of computer-assisted surgery in immediate implant placement: An experimental study

2021 ◽  
Vol 0 (0) ◽  
pp. 0
Author(s):  
LuisErnesto Arriola-Guillén ◽  
Nicole Báez-Marrero ◽  
JoséLuis Rafel ◽  
YalilAugusto Rodríguez-Cárdenas ◽  
AronAliaga-Del Castillo ◽  
...  
Keyword(s):  
Experimental Study ◽  
Computer Assisted Surgery ◽  
Computer Assisted ◽  
Implant Placement ◽  
Immediate Implant

How to equalize the leg length in total hip arthroplasty for patients with unilateral Crowe type IV developmental dysplasia of the hip

2020 ◽  
Author(s):  
Yinqiao Du ◽  
Jingyang Sun ◽  
Haiyang Ma ◽  
Sen Wang ◽  
Ming Ni ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Developmental Dysplasia ◽  
Leg Length ◽  
Greater Trochanter ◽  
Femoral Length ◽  
Total Hip ◽  
Type Iv ◽  
The Mean ◽  
Dysplasia Of The Hip

Abstract Background: The purpose of this study was to explore that how to equalize the leg length in total hip arthroplasty (THA) with shortening subtrochanteric osteotomy (SSTO) or not for unilateral Crowe type IV developmental dysplasia of the hip (DDH) through the evaluation of the postoperative full-length anteroposterior radiographs. Methods: The postoperative radiographs of 60 patients with unilateral Crowe type IV DDH from July 2012 to May 2019 were retrospectively reviewed. These data included leg length, femoral length, height of center of rotation (COR) of hip, height of greater trochanter, and depth of the sleeve or cone. Patients with leg length discrepancy (LLD) < 10 mm were defined as the non-LLD group. Results: In the non LLD group (26 patients of SSTO and 22 of non-SSTO), the femoral length both SSTO and non-SSTO groups were significantly shorter on operated side, compared with the contralateral side, and the mean discrepancy in SSTO group was approximately equal to the mean length of SSTO. The mean height of COR of hip on operated sides both SSTO and non-SSTO groups were 13.2 mm, and the contralateral sides were 15.2 mm and 15.5 mm, respectively. The depth of the sleeve or cone between SSTO and non-SSTO groups were 21.7 mm and 30.6 mm, respectively. The depth of the sleeve or cone in SSTO group was negatively correlated with the length of SSTO. The height of the greater trochanter of the operated and contralateral sides were 5.3 mm and 16.6 mm in SSTO group, and those in the non-SSTO group were 13.2 mm and 17.2 mm. Conclusions: SSTO leaded to femoral shortening on the operated side for patients with unilateral Crowe type IV DDH. The position of sleeve or cone should be close to the apex of greater trochanter to compensate the lengh of SSTO.

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