scholarly journals Does robotic-arm assisted total hip arthroplasty benefit short-term clinical outcomes? A pair match-controlled study

10.29007/455b ◽  
2018 ◽  
Author(s):  
Itay Perets ◽  
John Walsh ◽  
Brian Mu ◽  
Yosif Mansor ◽  
Leslie Yuen ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Clinical Outcomes ◽  
Hip Arthroplasty ◽  
Harris Hip Score ◽  
Controlled Study ◽  
Robotic Assistance ◽  
Short Term ◽  
Total Hip ◽  
Significant Difference

Recent advances have made robotic assistance a viable option in total hip arthroplasty (THA). However, the clinical outcomes of this procedure relative to THA without robotic assistance have yet to be reported. This study presents short-term outcomes of robotically assisted THA compared to a pair-matched control group of patients that underwent THA without robotic assistance.Data were prospectively collected on all THAs performed from July 2011 to January 2015. Patients were included if they underwent primary THA treating idiopathic osteoarthritis and were eligible for minimum two-year follow-up. Outcomes were measured using Harris Hip Score (HHS), the Forgotten Joint Score (FJS-12), pain on a visual analog scale (VAS), and satisfaction from 0-10. Patients that underwent THA with robotic assistance were matched 1:1 with THA patients without robotic assistance for age, sex, BMI, and approach.There were 85 patients in each study group. There were no significant differences in the demographic factors matched for. Both HHS and FJS-12 were significantly higher in the robotic assistance group at minimum two-year follow-up. VAS was lower in the robotic assistance group, but this was not statistically significant (p = 0.12). There was a not a significant difference in patient satisfaction. There was no significant difference in the rate of postoperative complications or subsequent revisions between groups.Robotically assisted THA is safe and may lead to superior short-term outcomes compared to THA without robotic assistance.

scholarly journals Ten-year comparison of two different techniques for femoral bone cavity preparation—broaching versus compaction in patients with cementless total hip arthroplasty

2021 ◽  
Vol 2 (12) ◽  
pp. 1035-1042
Author(s):  
Maciej Okowinski ◽  
Mette Holm Hjorth ◽  
Sebastian Breddam Mosegaard ◽  
Jonathan Hugo Jürgens-Lahnstein ◽  
Stig Storgaard Jakobsen ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Clinical Outcomes ◽  
Hip Arthroplasty ◽  
Harris Hip Score ◽  
Femoral Bone ◽  
Total Hip ◽  
Stem Subsidence ◽  
Femur Fractures

Aims Femoral bone preparation using compaction technique has been shown to preserve bone and improve implant fixation in animal models. No long-term clinical outcomes are available. There are no significant long-term differences between compaction and broaching techniques for primary total hip arthroplasty (THA) in terms of migration, clinical, and radiological outcomes. Methods A total of 28 patients received one-stage bilateral primary THA with cementless femoral stems (56 hips). They were randomized to compaction on one femur and broaching on the contralateral femur. Overall, 13 patients were lost to the ten-year follow-up leaving 30 hips to be evaluated in terms of stem migration (using radiostereometry), radiological changes, Harris Hip Score, Oxford Hip Score, and complications. Results Over a mean follow-up period of 10.6 years, the mean stem subsidence was similar between groups, with a mean of -1.20 mm (95% confidence interval (CI) -2.28 to -0.12) in the broaching group and a mean of -0.73 mm (95% CI -1.65 to 0.20) in the compaction group (p = 0.07). The long-term migration patterns of all stems were similar. The clinical and radiological outcomes were similar between groups. There were two intraoperative fractures in the compaction group that were fixed with cable wire and healed without complications. No stems were revised. Conclusion Similar stem subsidence and radiological and clinical outcomes were identified after the use of compaction and broaching techniques of the femur at long-term follow-up. Only the compaction group had intraoperative periprosthetic femur fractures, but there were no long-term consequences of these. Cite this article: Bone Jt Open 2021;2(12):1035–1042.

scholarly journals Study of functional outcome of total hip arthroplasty in a series of cases of hip pathologies done in rural population

2016 ◽  
Vol 2 (4) ◽  
pp. 269
Author(s):  
Rahul Kadam ◽  
Pankaj Bansal ◽  
Abhay Chhallani
Keyword(s):  
Total Hip Arthroplasty ◽  
Functional Outcome ◽  
Hip Arthroplasty ◽  
Rural Population ◽  
Harris Hip Score ◽  
Controlled Study ◽  
Walking Ability ◽  
Total Hip ◽  
Medical College

<p class="abstract"><strong>Background:</strong> The objective of the study was to assess the functional outcome of total hip arthroplasty (THA) done in a series of cases of hip pathologies rural population.</p><p class="abstract"><strong>Methods:</strong> A retrospective randomized controlled study conducted in 50 cases of hip arthritis (38 males and 12 females)  treated with uncemented THA for an average follow-up of  2 years  at department of orthopedics MGM Medical College, Kamothe, Navi Mumbai. Harris hip scoring system was used for the functional scoring and the postoperative radiographs were assessed by Gruen zones for the femoral component and DeLee and Charnley zones for the acetabular component. All patients were evaluated pre operatively and post operatively 3 months 6 months, 12months, 2years with Harris Hip score.<strong></strong></p><p class="abstract"><strong>Results:</strong> 81% of our patients scored 85 points or better for a rating of excellent by Harris hip score system. 90% patients had little /no pain post operatively, whereas walking ability improved and was unlimited in 80% of the patients post operatively. Harris hip score improved from 40 to 80. 80.5% -excellent, 13.80% -good, 5.7% -fair results. Poor results were not seen in any patient.</p><p class="abstract"><strong>Conclusions:</strong> THR provided excellent pain relief, adequate stability, and remarkable range of motion in severely painful, refractory hip. A significant improvement was seen at two year follow-up. </p>

scholarly journals 32-mm ceramic-on-ceramic total hip arthroplasty versus 28-mm ceramic bearings: 5- to 15-year follow-up study

2018 ◽  
Vol 29 (1) ◽  
pp. 65-71 ◽  
Author(s):  
Yoshitoshi Higuchi ◽  
Taisuke Seki ◽  
Yukiharu Hasegawa ◽  
Yasuhiko Takegami ◽  
Daigo Morita ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Harris Hip Score ◽  
Total Hip ◽  
Kaplan Meier ◽  
Significant Difference ◽  
Average Patient ◽  
The Mean ◽  
Ceramic On Ceramic

Introduction: This study aimed to compare the clinical and radiographic results of 28-mm ceramic-on-ceramic (CoC) total hip arthroplasty (THA) to those of 32-mm CoC during a 5- to 15-year follow-up period. Methods: 107 joints (95 women and 6 men) underwent 28-mm CoC, and 60 (49 women and 7 men) underwent 32-mm CoC. The average patient age at the time of surgery was 56.1 and 55.7 years in the 28-mm and 32-mm CoC groups, respectively. Clinical and radiologic measurements of all patients were analysed. Results: The mean preoperative Harris hip score (HHS) was similar in the 2 groups (28-mm, 58.9; and 32-mm, 58.5). However, at final follow-up, the mean HHS of the 32-mm CoC (91.8) was significantly better than that of the 28-mm CoC (88.2) ( p = 0.003), as were the ranges of motion (ROM) for flexion (98.3 ± 13.5° vs. 87.3 ± 19.3°, p < 0.001) and abduction (27.8 ± 14.9° vs. 22.1 ± 19.3°, p = 0.007). The mean wear rate was 0.0044 mm/year for the 28-mm CoC and 0.0044 mm/year for the 32-mm CoC. No ceramic fractures were found in the 2 groups. One joint in the 28-mm CoC (0.9%) required revision owing to progressive osteolysis. Kaplan-Meier survival at 10 years, with implant loosening or revision THA as the endpoint, was 98.3% for 28-mm CoC and 100% for 32-mm CoC ( p = 0.465). Conclusion: There was no significant difference in ceramic-related complications between the 2 groups. Our study demonstrated that the 32-mm and 28-mm CoC are safe and are associated with good clinical outcomes.

scholarly journals Early Postoperative Clinical Outcomes of Robotic Arm-Assisted Vs. Image-Based Navigated Total Hip Arthroplasty

2020 ◽  
Author(s):  
Nao Shibanuma ◽  
Kazunari Ishida ◽  
Tomoyuki Matsumoto ◽  
Koji Takayama ◽  
Yutaro Sanada ◽  
...  
Keyword(s):  
Postoperative Pain ◽  
Total Hip Arthroplasty ◽  
Clinical Outcomes ◽  
Hip Arthroplasty ◽  
Robotic Arm ◽  
Harris Hip Score ◽  
Surgical Time ◽  
Total Hip ◽  
Radiographic Parameters ◽  
Significant Difference

Abstract Background The purpose of this study was to compare the clinical outcomes of total hip arthroplasty (THA) using computer navigation systems (nTHA) and those of robotic arm-assisted THA (rTHA).Methods Thirty prospective subjects who underwent rTHA were clinically compared with 30 subjects who underwent nTHA. Clinical data (the surgical time, intraoperative blood loss, length of hospital stay, pain severity, number of days to independent walking, and Harris Hip Score (HHS) at discharge) and radiographic parameters (the inclination and anteversion angles) were statistically compared between the two groups. Results The surgical time, number of days to independent walking, and postoperative pain were significantly reduced in the rTHA group than in the nTHA group. The rTHA group showed a significantly higher postoperative HHS than did the nTHA group. No statistically significant difference was observed in radiographic parameters between the groups.Conclusion The surgical time, postoperative pain, and number of days to independent walking were significantly shorter, and the HHS at discharge was significantly higher in the rTHA group than in the nTHA group. Thus, as compared to nTHA, rTHA improved early clinical outcomes.

Short-term Clinical Outcomes of Robotic-Arm Assisted Total Hip Arthroplasty: A Pair-Matched Controlled Study

Orthopedics ◽  
2020 ◽  
Author(s):  
Itay Perets ◽  
John P. Walsh ◽  
Brian H. Mu ◽  
Yosif Mansor ◽  
Philip J. Rosinsky ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Clinical Outcomes ◽  
Hip Arthroplasty ◽  
Robotic Arm ◽  
Controlled Study ◽  
Short Term ◽  
Total Hip

scholarly journals Poor outcomes for osteoporotic patients undergoing conversion total hip arthroplasty following prior failed dynamic hip screw fixation: a nationwide retrospective cohort study

2019 ◽  
Vol 47 (4) ◽  
pp. 1544-1554 ◽  
Author(s):  
Qian Xu ◽  
Jiajie Lai ◽  
Fan Zhang ◽  
Yangkai Xu ◽  
Fugui Zhu ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Dynamic Hip Screw ◽  
Harris Hip Score ◽  
Insurance Company ◽  
Total Hip ◽  
Asian Patients ◽  
Significant Difference ◽  
Hip Screw

Objectives This study was performed to compare the long-term clinical and radiological outcomes of conversion total hip arthroplasty (CTHA) following prior failed InterTan nail (IT) fixation or dynamic hip screw (DHS) fixation in Asian patients with osteoporotic intertrochanteric hip fractures (IHFs) and to clarify which implant tends to be more favourable for CTHA. Methods Records of consecutive Asian patients with osteoporosis who underwent conversion of failed primary unilateral IT or DHS fixation to THA from 2010 to 2013 were extracted from the comprehensive database of the China Pacific Insurance Company Ltd. All consecutive procedures were managed by high-volume surgeons. The primary endpoint was the clinical outcome. The secondary endpoint was the radiological outcome. Results In total, 447 Asian patients with osteoporotic IHFs (DHS, n = 223; IT, n = 224) were assessed during a median follow-up of 46 months (range, 39–53 months). The two groups showed a significant difference in the Harris hip score at final follow-up and in the orthopaedic complication rate (DHS, 20.2%; IT, 9.8%). Conclusion Conversion to THA following prior failed DHS fixation tends to be associated with poorer clinical and radiological outcomes in Asian patients with osteoporotic IHFs than that following prior failed IT fixation.

scholarly journals Cemented versus uncemented femoral component total hip arthroplasty in elderly patients with primary osteoporosis: retrospective analysis with 5-year follow-up

2019 ◽  
Vol 47 (4) ◽  
pp. 1610-1619 ◽  
Author(s):  
Chen Yang ◽  
Xiulan Han ◽  
Jie Wang ◽  
Zheng Yuan ◽  
Tao Wang ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Elderly Patients ◽  
Femoral Component ◽  
Hip Arthroplasty ◽  
Harris Hip Score ◽  
Primary Osteoporosis ◽  
Total Hip ◽  
Early Revision ◽  
Significant Difference

Objective To compare medium-term clinical and radiological outcomes of primary unilateral uncemented (UN) or cemented (CE) femoral component total hip arthroplasty (THA) in elderly patients with osteoporosis. Methods Consecutive patients with osteoporosis who underwent primary unilateral UN or CE THAs at our institution from 2006 to 2013 were retrospectively reviewed. All consecutive procedures were managed by high-volume surgeons, using UN or CE THA approaches. Follow-up assessments occurred at 1, 3, 6, 9, and 12 months postoperatively, and yearly thereafter. Patient-related functional outcomes were assessed using the Harris Hip Score (HHS). Primary and secondary endpoints were early revision (<5 years) and functional outcome. Results In total, 496 primary unilateral THAs (CE, n = 184; UN, n = 182) were assessed with a median follow-up period of 75 months (range, 65–86 months). From 3 months after surgery to the final follow-up, HHS was consistently superior in the CE group. Respective prosthetic loosening rates in the UN and CE groups were 26.4% and 16.8% at a minimum of 5 years. There was a significant difference in rate of early revision (7.6% CE vs. 14.8% UN). Conclusion Compared with UN THA, CE THA exhibits a superior outcome in elderly patients with primary osteoporosis.

scholarly journals Serum cobalt concentrations remain at low levels at a minimum of 20 years following metal-on-metal total hip arthroplasty

2020 ◽  
Vol 9 (3) ◽  
pp. 146-151 ◽  
Author(s):  
Wenzel Waldstein ◽  
Ulrich Koller ◽  
Bernhard Springer ◽  
Paul Kolbitsch ◽  
Wolfram Brodner ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Harris Hip Score ◽  
Controlled Study ◽  
Control Group ◽  
Total Hip ◽  
Metal On Metal ◽  
Low Levels ◽  
Serum Cobalt

Aims Second-generation metal-on-metal (MoM) articulations in total hip arthroplasty (THA) were introduced in order to reduce wear-related complications. The current study reports on the serum cobalt levels and the clinical outcome at a minimum of 20 years following THA with a MoM (Metasul) or a ceramic-on-polyethylene (CoP) bearing. Methods The present study provides an update of a previously published prospective randomized controlled study, evaluating the serum cobalt levels of a consecutive cohort of 100 patients following THA with a MoM or a CoP articulation. A total of 31 patients were available for clinical and radiological follow-up examination. After exclusion of 11 patients because of other cobalt-containing implants, 20 patients (MoM (n = 11); CoP (n = 9)) with a mean age of 69 years (42 to 97) were analyzed. Serum cobalt levels were compared to serum cobalt levels five years out of surgery. Results The median cobalt concentration in the MoM group was 1.04 μg/l (interquartile range (IQR) 0.64 to 1.70) at a mean of 21 years (20 to 24) postoperatively and these values were similar (p = 0.799) to cobalt levels at five years. In the CoP control group, the median cobalt levels were below the detection limit (< 0.3 μg/l; median 0.15 μg/l, IQR 0.15 to 0.75) at 20 years. The mean Harris Hip Score was 91.4 points (61 to 100) in the MoM group and 92.8 points (63 to 100) in the CoP group. Conclusion This study represents the longest follow-up series evaluating the serum cobalt levels after 28 mm head MoM bearing THA and shows that serum cobalt concentrations remain at low levels at a mean of 21 years (20 to 24) after implantation. Cite this article: Bone Joint Res. 2020;9(3):145–150.

scholarly journals Prospective Short-Term and Return-to-Sports Results of a Novel Uncemented Short-Stem Hip Prosthesis with Metaphyseal Anchorage

2020 ◽  
Vol 9 (6) ◽  
pp. 1972
Author(s):  
Robert Breuer ◽  
Rainer Fiala ◽  
Nina Schrenk ◽  
Thomas M. Tiefenboeck
Keyword(s):  
Los Angeles ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Activity Level ◽  
Short Stem ◽  
Harris Hip Score ◽  
Return To Sports ◽  
Short Term ◽  
Total Hip

Short-stem hip prostheses were developed to treat active patients requiring total hip arthroplasty (THA). This study provides short-term data about a short-stem total hip arthroplasty system. Functional and radiological outcomes as well as return to sports and activity level were assessed. A series of 55 patients was primarily included. Data were available for 47 patients at an average follow-up of 38 ± 4.6 months. The back-to-sports analysis showed a 98% return-to-sports rate (46/47 patients). The average time for return to sports was 13 weeks (± 8) postoperatively. Five patients (10.6%) were more active postoperatively. The Harris Hip Score (HHS) improved from 34.8 (±9.4) preoperatively to 94.7 (±8.4, p ≤ 0.001) and the University of California, Los Angeles (UCLA) score improved from 4.5 (±1.8) to 6.9 (±1.9) (p ≤ 0.001). The High Activity Arthroplasty Score (HAAS) was 12 (±3.6) at 3-year follow-up. Pre- and postoperative UCLA and postoperative HHS and HAAS scores had a positive influence on the return-to-sports rate (p ≤ 0.05). The collection of radiographic data during all postoperative follow-ups showed no signs of radiolucent lines or bone fissures. The complication rate was at 5%. Short-stem systems are equaling conventional prostheses and offer benefits regarding soft tissue and bone stock preservation. Fast recovery and return to sports can be achieved.

scholarly journals Osteonecrosis of the hip: is there a difference in the survivorship of total hip arthroplasty with or without previous vascular iliac bone grafting?

2021 ◽  
Vol 16 (1) ◽  
Author(s):  
Wai-Wang Chau ◽  
Jonathan Patrick Ng ◽  
Hiu-Woo Lau ◽  
Michael Tim-Yun Ong ◽  
Kwong-Yin Chung ◽  
...  
Keyword(s):  
Femoral Head ◽  
Total Hip Arthroplasty ◽  
Clinical Outcomes ◽  
Hip Arthroplasty ◽  
Iliac Bone ◽  
Harris Hip Score ◽  
Implant Survival ◽  
Total Hip ◽  
Implant Survivorship ◽  
Significant Difference

Abstract Background Osteonecrosis of the femoral head (ONFH) is a debilitating condition. Vascularized iliac bone graft (VIBG) is a joint-preserving surgery to improve blood supply to the avascular portion of the femoral head which may delay secondary osteoarthritis and total hip arthroplasty (THA). However, whether VIBG will affect the subsequent THA survivorship and outcomes are still uncertain. Methods Implant survivorship and clinical outcomes were compared between 27 patients who had undergone prior VIBG and 242 patients who had only undergone THA for ONFH. Baseline characteristics and the postoperative Harris Hip Score (HHS) were also recorded and compared between the two groups. Implant survivorship was determined using Kaplan-Meier survival analysis. Results The overall implant survival for all patients who had a primary diagnosis of ONFH and eventually underwent THA was 92.9%. There was no significant difference in the implant survivorship between the group who directly received THA (survivorship of 93%) and the group which failed VIBG and was subsequently converted to THA (survivorship of 91.9%) (p = 0.71). In addition, higher THA revision rates were associated with smokers and drinkers. Conclusions VIBG may be a reasonable option as a “buy-time” procedure for ONFH. Even if conversion to THA is eventually required, patients may be reassured that the overall survivorship and clinical outcomes may not be compromised. Patients are recommended to give up smoking and binge drinking prior to THA to increase implant survival rate.

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