Importance of Retaining Sufficient Acetabular Depth: Successful 2-Year Outcomes of Hip Arthroscopy for Patients With Pincer Morphology as Compared With Matched Controls

2020 ◽  
Vol 48 (10) ◽  
pp. 2471-2480 ◽  
Author(s):  
Claudia R. Brick ◽  
Catherine J. Bacon ◽  
Matthew J. Brick
Keyword(s):  
Total Hip Arthroplasty ◽  
Femoroacetabular Impingement ◽  
Hip Arthroplasty ◽  
Hip Arthroscopy ◽  
Patient Reported Outcomes ◽  
Control Group ◽  
Total Hip ◽  
Patient Reported ◽  
Acetabular Overcoverage

Background: Patients with pincer-type femoroacetabular impingement are commonly treated with arthroscopic reduction of acetabular depth as measured by the lateral center-edge angle (LCEA). The optimal amount of rim reduction has not been established, although large resections may increase contact pressures through the hip. A recent publication demonstrated inferior surgical outcomes in patients with acetabular overcoverage as compared with normal acetabular coverage. Casual observation of our database suggested equivalent improvements, prompting a similar analysis. Purpose: To analyze patient-reported outcomes after hip arthroscopy for femoroacetabular impingement in patients with acetabular overcoverage who were matched with controls with normal coverage, as well as to analyze associations with reduction in LCEA. Study Design: Cohort study; Level of evidence, 3. Methods: Data were collected prospectively from patients with a minimum 2-year follow-up after receiving hip arthroscopy for femoroacetabular impingement by a single surgeon. Cases were reviewed to identify those with pincer-type morphology (LCEA >40°) and matched according to sex, age, chondral damage, and surgery date in a 1:1 ratio with controls with an LCEA of 25° to 40°. The surgical goal was to reduce the LCEA to the upper end of the normal range with minimal rim resection, usually 35° to 37°. Radiographic measurements of coverage, intraoperative findings, procedures, and patient-reported outcomes were recorded, including the 12-Item International Hip Outcome Tool, Non-arthritic Hip Score, Hip Disability and Osteoarthritis Outcome Score, visual analog scale for pain, rates of revision or reoperation, and conversion to total hip arthroplasty. Results: A total of 114 hips (93 patients) for the pincer group were matched 1:1 from 616 hips (541 patients) for the control group. The pincer group (mean ± SD age, 34.5 ± 12.2 years) did not differ in age, body mass index, or follow-up from controls. LCEA was reduced in both groups pre- to postoperatively: the pincer group from 44.0° ± 2.8° to 34.2° ± 3.5° and the controls from 32.9° ± 3.9° to 31.0° ± 3.0°. No differences in improvement were observed: iHOT-12 improved by 35.7 points in both groups ( P = .9 for analysis of variance interaction) and Nonarthritic Hip Score by 22.3 points ( P = .6). From all eligible surgical procedures, 2-year follow up rates were 2.5% and 2.6% for the pincer and control cohorts, respectively, and 1.2% and 0.3% for conversion to total hip arthroplasty. Conclusion: Arthroscopic management of acetabular overcoverage can achieve excellent results, equivalent to arthroscopy for other causes of symptomatic femoroacetabular impingement. A key finding was smaller rim resections producing a mean postoperative LCEA of 34.2° with a small standard deviation.

scholarly journals Subchondral drilling for chondral flaps reduces the risk of total hip arthroplasty in femoroacetabular impingement surgery at minimum five years follow-up

2018 ◽  
Vol 29 (2) ◽  
pp. 191-197 ◽  
Author(s):  
Pascal C Haefeli ◽  
Moritz Tannast ◽  
Martin Beck ◽  
Klaus A Siebenrock ◽  
Lorenz Büchler
Keyword(s):  
Los Angeles ◽  
Total Hip Arthroplasty ◽  
Femoroacetabular Impingement ◽  
Hip Arthroplasty ◽  
Hip Dislocation ◽  
Harris Hip Score ◽  
Control Group ◽  
Total Hip ◽  
Tönnis Grade

Introduction: The best treatment of acetabular chondral flaps during surgery for femoroacetabular impingement (FAI) is unknown. We asked if subchondral drilling improves clinical and radiographic outcome and if there are factors predicting failure. Methods: We treated 79 patients with symptomatic FAI and acetabular chondral flaps with surgical hip dislocation between January 2000 and December 2007. Exclusion of all patients with previous hip pathology or trauma resulted in 62 patients (80 hips). The chondral flap was slightly debrided in 43 patients/51 hips (control group). In 28 patients/29 hips (study group), additional osseous drilling was performed. 4 patients (5 hips, 6%) were lost to follow-up. Mean follow-up was 9 years (5–13 years). The groups did not differ in demographic data, radiographic parameters or follow-up. Clinical outcome was assessed with the Merle d’Aubigné score, modified Harris Hip Score and University of California Los Angeles activity score and progression of osteoarthritis with the Tönnis grade. Results: No patient underwent conversion to total hip arthroplasty (THA) in the drilling group compared to 7 patients (8 hips, 16%) in the control group ( p = 0.005); in the remaining hips, clinical scores and progression of Tönnis grade did not differ. Increased acetabular coverage, age and body mass index were univariate predictive factors for conversion to THA. No drilling was as an independent predictive factor for conversion to THA (hazard ratio 58.07, p = 0.009). Conclusion: Subchondral drilling under acetabular chondral flaps during surgical treatment of FAI is an effective procedure to reduce the rate of conversion to THA.

Patient-Reported Outcomes Can Be Used to Streamline Post-Total Hip Arthroplasty Follow-Up to High-Risk Patients

2017 ◽  
Vol 32 (11) ◽  
pp. 3319-3321
Author(s):  
Jie J. Yao ◽  
Hilal Maradit Kremers ◽  
Cathy D. Schleck ◽  
Dirk R. Larson ◽  
Jasvinder A. Singh ◽  
...  
Keyword(s):  
High Risk ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Patient Reported Outcomes ◽  
Total Hip ◽  
High Risk Patients ◽  
Patient Reported ◽  
Risk Patients

Three-year results of a polycarbonate urethane acetabular bearing in total hip arthroplasty

2019 ◽  
Vol 30 (3) ◽  
pp. 303-308
Author(s):  
Stefan Lazic ◽  
Catherine Kellett ◽  
Irrum Afzal ◽  
Rajan Mohan ◽  
Vijay Killampalli ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Patient Reported Outcomes ◽  
Prospective Observational Study ◽  
Total Hip ◽  
Polycarbonate Urethane ◽  
Patient Reported ◽  
Term Data

Background: Polycarbonate urethane (PCU) is a bearing surface with a lower modulus of elasticity than polyethylene or ceramic and is thought to more closely replicate the tribology of native hyaline cartilage. The purpose of this study was to determine the clinical outcomes with the use of PCU in elective total hip arthroplasty (THA). Methods: We carried out a prospective observational study in which 157 patients underwent elective THA with a metal-on-PCU hip system. Patients had radiographic follow-up at 6 months and 3 years after surgery. Oxford Hip Scores and EuroQol scores were obtained annually and Harris Hip Scores were obtained at 6 months and 3 years after surgery. Results: 180 hips were implanted, of which, 149 hips reached 3-year review with no revisions. There was an increase in Harris Hip Scores, Oxford Hip Scores and EuroQol scores ( p < 0.001). 12 patients (12 hips) reported painless hip squeaking. There were no dislocations and no other adverse events were reported. Conclusion: Our results showed satisfactory survivorship and improvements in patient reported outcomes with metal on PCU THA. Long-term data are still being collected to confirm these findings. We recommend further tribological research into the squeaking phenomenon we observed.

scholarly journals Imageless computer assisted navigation in ceramic-on-ceramic total hip arthroplasty vs. manual approach: a single-centre retrospective study

10.29007/9gpf ◽  
2019 ◽  
Author(s):  
John McLoughlin ◽  
Mo Mathew ◽  
Stephen Grant
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Patient Reported Outcomes ◽  
Statistical Significance ◽  
Computer Assisted ◽  
Total Hip ◽  
Patient Reported ◽  
Cup Positioning

Background: Acetabular cup positioning is vital to the long-term survivorship of total hip arthroplasty (THA). Malalignment has been linked to dislocation, wear and osteolysis. Although there are many studies demonstrating the reduction in variability of cup positioning with computer-assisted techniques, there are relatively few reporting long-term patient reported outcomes and revision rates. Aim: The aim of this study was to review whether those patients who underwent navigated THA had better long-term survivorship or better patient reported outcomes. Methods: We compared revision rates and Oxford hip scores of 152 THAs (47 navigated and 105 non-navigated) performed at a single site between 2003 and 2008, with a minimum follow-up of 10 years. Results: 9 of the non-navigated and none of the navigated hips were revised at 10 year follow-up (p=0.057). There were no observable differences in 10-year Oxford hip scores between the navigated and non-navigated hips, 44.82 and 43.38 respectively. Conclusion: With respect to the rate of revision, although statistical significance was not achieved, it can be shown from our data that there was a clinically significant reduction in revision rates with navigated vs. non-navigated techniques. More data with higher patient numbers in the navigated cohort may be required to validate the results of our study.

scholarly journals Preoperative Intra-articular Steroid Injections as Predictors of Hip Arthroscopy: 2-Year Outcomes

2021 ◽  
Vol 9 (11) ◽  
pp. 232596712110538
Author(s):  
Tala Mujahed ◽  
Jeffrey D. Hassebrock ◽  
Justin L. Makovicka ◽  
Jordan R. Pollock ◽  
Justin G. Wilcox ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Femoroacetabular Impingement ◽  
Hip Arthroplasty ◽  
Hip Arthroscopy ◽  
Patient Reported Outcomes ◽  
Positive Response ◽  
Steroid Injection ◽  
Steroid Injections ◽  
Patient Reported ◽  
Nonresponder Group

Background: In patients with femoroacetabular impingement, preoperative diagnostic injections are commonly used to establish a diagnosis of intra-articular pathology. In some cases, intra-articular steroid injections are also used for therapeutic purposes. Purpose/Hypothesis: The purpose of this study was to determine if a positive response to intra-articular steroid injection was predictive of superior outcomes after hip arthroscopy to determine if the response to intra-articular steroid injection was predictive of outcomes after hip arthroscopy. It was hypothesized that a positive response to a preoperative hip injection would be predictive of improved short- to midterm outcomes after hip arthroscopy. Study Design: Cohort study; Level of evidence, 3. Methods: This was a retrospective study of 208 patients who elected to have ultrasound-guided intra-articular steroid injection before they underwent hip arthroscopy between January 2016 and December 2016. Patients were divided into 2 groups: those who showed improvement in pain after the injection (steroid responder group) and those who showed no response (nonresponder group). The authors compared the preoperative and 2-year postoperative patient-reported outcomes (modified Harris Hip Score [mHHS] and Hip Outcome Score–Activities of Daily Living [HOS-ADL]) and radiographic findings between groups. Clinical endpoints, including rates of revision and conversion to total hip arthroplasty, were also reviewed. Results: There were 88 patients in the nonresponder group and 120 patients in the responder group, with no significant between-group differences in preoperative descriptive variables. The responder group had significantly higher 2-year mHHS and HOS-ADL, pre- to postoperative change in mHHS and HOS-ADL, percentage of patients achieving the patient acceptable symptomatic state (PASS) on the mHHS, and percentage of patients reaching the minimum clinically important difference and the PASS on the HOS-ADL. There was no difference in Tönnis grade, acetabular labrum articular disruption grade, revision rate, or conversion to total hip arthroplasty between the 2 groups. Conclusion: The response to preoperative intra-articular injection did aid in predicting 2-year patient-reported outcomes of hip arthroscopy for femoroacetabular impingement. Overall, the result of a preoperative intra-articular injection can be a helpful clinical tool for surgical decision-making and counseling patients on expected outcomes after hip arthroscopy.

Outcomes after Total Hip Arthroplasty in Young Patients with Osteonecrosis of the Hip

2017 ◽  
Vol 27 (3) ◽  
pp. 286-292 ◽  
Author(s):  
Ishaan Swarup ◽  
Marisa Shields ◽  
Erik N. Mayer ◽  
Chelsea J. Hendow ◽  
Jayme C. Burket ◽  
...  
Keyword(s):  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Patient Reported Outcomes ◽  
Young Patients ◽  
Implant Survival ◽  
Total Hip ◽  
Time Of Surgery ◽  
Patient Reported

Background Osteonecrosis of the hip is a clinical, radiographic, and pathologic entity that commonly affects young patients. This study evaluates long-term implant survival and patient-reported outcomes after primary total hip arthroplasty (THA) in patients with osteonecrosis aged 35 or younger. Methods A retrospective study with prospective follow-up was conducted at a major academic medical center. Chart review was performed to identify young THA patients with osteonecrosis, and follow-up surveys were conducted to determine implant survival and patient-reported outcomes. Kaplan-Meier survival analysis was performed to evaluate implant survival, and the hip disability and osteoarthritis outcome score (HOOS) was used to describe patient-reported outcomes. Results The study included 135 patients (204 THAs) with a mean time to follow-up of 14 years. In this group, 10-year implant survival was 86% and 20-year implant survival was 66%. Implant survival was longer in male patients (p = 0.02) and patients that were over the age of 25 at the time of surgery (p = 0.03). The mean HOOS scores at follow-up were 87 for pain, symptoms, and ADLs, and 77 for sports. All HOOS measures were lower in patients that underwent a revision THA, and HOOS-Pain and HOOS-Sport scores were lower in patients that were over the age of 25 at the time of surgery (p<0.05). Conclusions Young patients with osteonecrosis have good implant survival and long-term outcomes after THA. Patient factors and implant characteristics should be considered when predicting implant survival and outcomes after THA in young patients with osteonecrosis.

Does Hepatitis C Affect the Clinical and Patient-Reported Outcomes of Primary Total Hip Arthroplasty at Midterm Follow-Up?

2017 ◽  
Vol 32 (9) ◽  
pp. 2779-2782 ◽  
Author(s):  
Kimona Issa ◽  
Todd P. Pierce ◽  
Steven F. Harwin ◽  
Anthony J. Scillia ◽  
Vincent K. McInerney ◽  
...  
Keyword(s):  
Hepatitis C ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Patient Reported Outcomes ◽  
Total Hip ◽  
Patient Reported ◽  
Primary Total Hip Arthroplasty

Pre-existing osteoarthritis remains a key feature of arthroscopy patients who convert to total hip arthroplasty

2020 ◽  
pp. jisakos-2020-000492
Author(s):  
Renuka M Vesey ◽  
Catherine J Bacon ◽  
Matthew J Brick
Keyword(s):  
New Zealand ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Hip Arthroscopy ◽  
Conversion Rate ◽  
Duration Of Symptoms ◽  
Chondral Lesions ◽  
Total Hip ◽  
Patient Reported

ObjectivesTo determine the rate of conversion to total hip arthroplasty following ipsilateral hip arthroscopy by a single surgeon in New Zealand and to describe patient-related and surgical characteristics of patients who converted.MethodsA retrospective cohort analysis of hip arthroscopy patients with 2 years of minimum follow-up identified the total hip arthroplasty conversion rate using the New Zealand National Joint Registry. Prospective data collected from patients who subsequently converted to hip arthroplasty included: sex, age at arthroscopy, body mass index, side of hip arthroscopy and arthroplasty, duration of symptoms and patient-reported outcome measures. Imaging (Tönnis grade and lateral centre-edge angle) and surgical findings (labral, ligamentum teres and osteochondral pathology) along with the arthroscopic procedures performed were also documented.ResultsSixty-six out of 1856 (3.56%) primary hip arthroscopies were followed by an ipsilateral hip arthroplasty during the follow-up period (mean 87±29 months). Most patients had pre-existing osteoarthritis and/or chondral lesions (n=51). Dysplasia and over-resection of the acetabulum were also identified as contributing factors.ConclusionConversion rate by a high-volume surgeon in New Zealand was relatively low. Most patients had pre-existing osteoarthritis and/or chondral lesions that became apparent at arthroscopy. Dysplasia is also a factor to be cautious of when selecting patients for arthroscopy. Acetabular resection must be approached cautiously.Level of evidenceLevel IV.

Implant Survival and Clinical Outcomes of Total Hip Arthroplasty in Adolescent and Young Adult Patients

2021 ◽  
Author(s):  
Lauren Zeitlinger ◽  
Anthony Gemayel ◽  
Patrick Whitlock ◽  
Joel Sorger
Keyword(s):  
Young Adult ◽  
Total Hip Arthroplasty ◽  
Hip Arthroplasty ◽  
Patient Reported Outcomes ◽  
Adult Patients ◽  
Total Hip ◽  
Patient Reported ◽  
Hip Disease ◽  
End Stage

AbstractTotal hip arthroplasty (THA) in pediatric patients is controversial with concern for high failure rates, and lack of promising outcomes as compared with the adult population. Increased survivorship of implants invites the potential for improved function and quality of life in young adults. Although THA is now an option for end-stage symptomatic hip disease in young patients, outcomes with contemporary techniques and implants have yet to be reported.Following the institutional review board approval, a retrospective chart review of 25 patients (29 hips) with end-stage hip disease at a single institution from 2010 to 2017 was performed. All patients underwent THA with noncemented, contemporary THA with highly cross-linked polyethene liners. Clinical, radiographic, and patient-reported outcomes were obtained including any postoperative complications, revisions, evidence of loosening or wear, and lastly, Western Ontario & McMaster Universities Osteoarthritis Index, Harris Hip Scores, Non-Arthritic Hip scores, and International Hip Outcome Tool. With a minimum follow-up duration of 2 years, there were no revisions or evidence of loosening or wear on follow-up radiographs. All patients underwent noncemented THA with metal or ceramic on highly cross-linked polyethylene liners. Six patients accounting for seven THAs completed patient-reported outcomes: two reporting excellent outcomes, four good outcomes, and one failed outcome. With advancing techniques and strategies, treatment options for hip pathology in the pediatric population are growing. We present favorable outcomes 2 years post-procedure, suggesting THA as a potential option for end-stage hip disease in pediatric and young adult patients.

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