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Fong S, Shah AK, Hecht CJ, Kamath AF. What is the long-term survivorship, complication profile, and patient reported outcomes after Birmingham hip resurfacing? J Orthop 2024; 55:134-148. [PMID: 38706587 PMCID: PMC11063114 DOI: 10.1016/j.jor.2024.04.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/07/2024] [Accepted: 04/14/2024] [Indexed: 05/07/2024] Open
Abstract
Introduction When indicated, Birmingham Hip Resurfacing (BHR) presents a viable alternative to total hip arthroplasty (THA), but there remain questions about the long-term outcomes of BHR. Therefore, we asked: 1) what are the long-term patient-reported outcomes and 2) survivorship rates following BHR; 3) what are the causes for revision surgery after BHR? and 4) how have these outcomes compared to THA at long-term follow-up. Methods A query of PubMed, MEDLINE, Scopus, and Cochrane in September 2023 was performed. Articles were included if they reported BHR survivorship rates at ≥10 years. Survivorship was defined as an all-cause revision of any BHR component. This review encompasses 26 articles, totaling 13,103 hips. Mean follow-up ranged from 6.0 to 20.9 years, but each study had at least a subgroup analysis for ≥10-year follow-up. Results Five studies compared preoperative and postoperative PROs for BHR, with four reporting improvement in at least one PRO after 10-year follow-up. Overall, survivorship rates ranged from 83% to 100% across diverse long-term timeframes, with 25 of 26 studies reporting 10-year survivorship rates greater than 87%. The primary reasons for revisions were implant loosening (22%), adverse reactions to metal debris (21.2%), and fractures of any kind (17.2%). In the six studies that compared BHR to THA, long-term survivorship was similar while BHR exhibited slightly superior activity levels. Conclusion The findings from this study suggested favorable long-term survivorship and postoperative outcomes of BHR. In studies comparing long-term BHR and THA, survivorship was comparable, with BHR potentially providing enhanced postoperative activity levels.
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Affiliation(s)
- Scott Fong
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, OH, 44195, USA
| | - Aakash K. Shah
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, OH, 44195, USA
| | - Christian J. Hecht
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, OH, 44195, USA
| | - Atul F. Kamath
- Department of Orthopaedic Surgery, Cleveland Clinic Foundation, Cleveland, OH, 44195, USA
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2
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Dąbkowska I, Sobiech L, Merkisz M, Turżańska K, Blicharski T, Jankiewicz K. Challenges of Hip Arthroplasty in a Paretic, Spastic Limb: A Case Study on Managing Femoral Neck Fracture Following Fixation Failure in a Hemiparetic Patient. J Clin Med 2024; 13:4023. [PMID: 39064063 PMCID: PMC11277479 DOI: 10.3390/jcm13144023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2024] [Revised: 06/26/2024] [Accepted: 07/08/2024] [Indexed: 07/28/2024] Open
Abstract
Background: Hip fractures and strokes are prevalent and escalating issues in geriatric healthcare. The absence of standardized surgical protocols for patients with spastic hemiparesis and multiple comorbidities presents a significant medical challenge. Methods: This case study describes a 64-year-old male patient with left-sided hemiparesis and failed surgical treatment of a pertrochanteric fracture in a spastic limb. The patient was admitted to the Department of Rehabilitation and Orthopedics in December 2022 for diagnostics and to establish a treatment plan after five months of non-ambulatory status. Results: This study emphasizes the crucial role of preoperative preparation, involving botulinum toxin injections into spastic muscles and physiotherapy, to enhance the supportive function of the paretic limb and improve locomotion before prosthetic surgery. Conclusions: The management of hip fractures in patients with spastic paralysis requires a multidisciplinary approach and the development of standardized treatment protocols. This case underscores the importance of comprehensive pre- and postoperative rehabilitation to improve patient outcomes. Further research is needed to establish standardized rehabilitation protocols for spastic patients undergoing hip arthroplasty. Randomized controlled trials could provide valuable insights into the efficacy of various interventions.
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Affiliation(s)
- Izabela Dąbkowska
- Department of Sports Medicine, Faculty of Health Science, Medical University of Lublin, Chodźki 15, 20-093 Lublin, Poland
| | - Lena Sobiech
- Department of Rehabilitation and Orthopedics, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland (T.B.)
| | - Michał Merkisz
- Department of Rehabilitation and Orthopedics, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland (T.B.)
| | - Karolina Turżańska
- Department of Rehabilitation and Orthopedics, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland (T.B.)
| | - Tomasz Blicharski
- Department of Rehabilitation and Orthopedics, Medical University of Lublin, Jaczewskiego 8, 20-954 Lublin, Poland (T.B.)
| | - Katarzyna Jankiewicz
- 2nd Department of Gynaecology, Medical University, Jaczewskiego 8, 20-954 Lublin, Poland;
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3
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Hardwick-Morris M, Twiggs J, Miles B, Al-Dirini RMA, Taylor M, Balakumar J, Walter WL. Comparison of iliopsoas tendonitis after hip resurfacing arthroplasty and total hip arthroplasty: A case-controlled investigation using a validated simulation. J Orthop Res 2024. [PMID: 38366978 DOI: 10.1002/jor.25815] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/27/2023] [Revised: 01/24/2024] [Accepted: 02/02/2024] [Indexed: 02/19/2024]
Abstract
Iliopsoas tendonitis, typically caused by impingement with the acetabular cup, occurs in up to 18% of patients after total hip arthroplasty (THA) and up to 30% of patients after hip resurfacing arthroplasty (HRA). We have developed a simulation for detecting iliopsoas impingement and validated it in a previous study of THA patients. However, due to the difference in incidence between HRA and THA, this study had two aims. First, to validate the simulation in a cohort of HRA patients and, second, to comparethe results of the HRA and THA patients to understand any differences in their etiology. We conducted a retrospective search in an experienced surgeon's database for HRA patients with iliopsoas tendonitisand control patients without iliopsoas tendonitis, resulting in two cohorts of 12 patients. Using CT scans, 3D models of the each patient's prosthetic and bony anatomy were generated, landmarked, and simulated. Regarding validation of the simulation for HRA patients, impingement significantly predicted the probability of iliopsoas tendonitis in logistic regression models and the simulation had a sensitivity of 83%, specificity of 100%, and an AUC ROC curve of 0.95. Unexpectedly, the HRA cohort exhibited less impingement than the THA cohort. Our novel simulation has now been demonstrated to detect iliopsoas impingement and differentiate between the symptomatic and asymptomatic cohorts in investigations of THA and HRA patients. This tool has the potential to be used preoperatively, to guide decisions about optimal cup placement, and postoperatively, to assist in the diagnosis of iliopsoas tendonitis.
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Affiliation(s)
- Max Hardwick-Morris
- 360 Med Care, Sydney, Australia
- Enovis ANZ, Sydney, Australia
- College of Science and Engineering, Flinders University, Adelaide, Australia
| | - Joshua Twiggs
- 360 Med Care, Sydney, Australia
- Enovis ANZ, Sydney, Australia
| | - Brad Miles
- 360 Med Care, Sydney, Australia
- Enovis ANZ, Sydney, Australia
| | - Rami M A Al-Dirini
- College of Science and Engineering, Flinders University, Adelaide, Australia
| | - Mark Taylor
- College of Science and Engineering, Flinders University, Adelaide, Australia
| | | | - William L Walter
- Institute of Bone and Joint Research, Kolling Institute, The University of Sydney, Sydney, Australia
- Department of Orthopaedics and Traumatic Surgery, Royal North Shore Hospital, Sydney, Australia
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Ryan NS, Kowalski E, Beaulé PE, Lamontagne M. The Effect of Surgical Approach and Hip Offset Reconstruction on Gait Biomechanics Following Total Hip Arthroplasty. J Arthroplasty 2024; 39:402-408.e1. [PMID: 37597822 DOI: 10.1016/j.arth.2023.08.040] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Revised: 08/09/2023] [Accepted: 08/10/2023] [Indexed: 08/21/2023] Open
Abstract
BACKGROUND This study aimed to examine how hip offset (HO) and surgical approach affect gait biomechanics following total hip arthroplasty (THA). METHODS There were 55 THA patients assigned to 3 groups based on surgical approach (ANT: anterior, LAT: lateral, or POS: posterior) and HO difference (large HO: >5 millimeters (mm), small HO; <5 mm, or normal; between +3 mm and -3 mm). Kinematics and kinetics were recorded using motion capture and force plate data. Group differences were assessed using statistical parametric mapping. RESULTS The ANT group demonstrated more normal sagittal plane kinematics and kinetics. No frontal plane kinematic differences were found, but the LAT group displayed more normal frontal plane kinetics. The LAT group displayed a slower walking speed than the ANT group, and the LAT and POS groups used a shorter stride/step length than the control group. The large HO group showed fewer differences in sagittal plane kinematics and kinetics than the small HO and normal groups. No frontal plane kinematic differences were observed, but the normal group demonstrated more significant differences than the large HO and small HO groups. No significant differences were found between any of the HO patient groups. CONCLUSION Anterior and lateral approaches led to more normal gait biomechanics in sagittal kinematics and frontal kinetics, respectively, but only the ANT group exhibited spatiotemporal gait parameters within normal ranges. Hip offset differences greater or less than 5 mm do not significantly change gait patterns. Surgical approach plays a greater role than HO reconstruction in producing more normal gait biomechanics following THA.
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Affiliation(s)
- Nicholas S Ryan
- Human Movement Biomechanics Laboratory, University of Ottawa, Ottawa, Ontario, Canada
| | - Erik Kowalski
- Human Movement Biomechanics Laboratory, University of Ottawa, Ottawa, Ontario, Canada
| | - Paul E Beaulé
- Human Movement Biomechanics Laboratory, University of Ottawa, Ottawa, Ontario, Canada; Division of Orthopaedic Surgery, The Ottawa Hospital, Ottawa, Ontario, Canada
| | - Mario Lamontagne
- Human Movement Biomechanics Laboratory, University of Ottawa, Ottawa, Ontario, Canada
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Molloy J, Handford C, Coolican J, Molloy T, Walter W. Long-Term Outcomes of Birmingham Hip Resurfacing Arthroplasty: A Systematic Review of Independent Series with At Least 10 Years of Follow-up. JB JS Open Access 2024; 9:e23.00057. [PMID: 38529209 PMCID: PMC10959564 DOI: 10.2106/jbjs.oa.23.00057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 03/27/2024] Open
Abstract
Background Hip resurfacing arthroplasty (HRA) provides an attractive alternative to total hip arthroplasty (THA) for the management of osteoarthritis in younger, more active patients; however, concerns persist over complications specific to HRA. The aims of this systematic review were to assess the documented long-term survival rates of the metal-on-metal BIRMINGHAM HIP Resurfacing System at a follow-up of at least 10 years and to analyze the functional outcomes and cause of failures. Methods A systematic review was undertaken of all published cohort studies available in the MEDLINE, Cochrane, Embase, and PubMed research databases up to December 2021, as recommended by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines. Data extraction was focused on survival rates, causes of failure, and functional outcomes. Survival estimates at 10 years were pooled in a meta-analysis, with each series weighted by its variance. Causes of failure were presented as a percentage of the pooled revisions. Results A total of 11 studies were identified, encompassing 3,129 cases. Across the 9 studies that had reported a mean follow-up, the mean follow-up was 11.7 years (range, 9.55 to 13.7 years). We found a pooled 10-year survival rate of 95.5% (95% confidence interval, 93.4% to 97.1%). There were 149 revisions among the studies (range, 4 to 38 revisions per study), a rate of 4.8% of the total procedures performed. The 2 main causes of revision were aseptic loosening (20.1% of revisions) and adverse reactions to metal debris (20.1%). There were no revisions for dislocation. Of the studies that reported preoperative functional scores, all reported significant improvement in mean scores postoperatively except for 1 study in which the mean Tegner activity score did not significantly improve. Conclusions When performed for appropriate indications, patients undergoing an HRA with use of the BIRMINGHAM HIP Resurfacing System can expect good implant survivorship at 10 years with acceptable functional results and low rates of dislocation and infection. This systematic review, however, confirms concerns regarding adverse reactions to metal debris as a leading cause of revision. Level of Evidence Therapeutic Level IV. See Instructions for Authors for a complete description of levels of evidence.
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Affiliation(s)
- J Molloy
- School of Medicine, University of Notre Dame Australia, Sydney, New South Wales, Australia
| | - C Handford
- Department of Orthopedics and Traumatic Surgery, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - J Coolican
- Department of Orthopedics and Traumatic Surgery, Royal North Shore Hospital, Sydney, New South Wales, Australia
| | - T Molloy
- School of Clinical Medicine, University of Cambridge, Cambridge, United Kingdom
| | - W Walter
- Department of Orthopedics and Traumatic Surgery, Royal North Shore Hospital, Sydney, New South Wales, Australia
- Institute of Bone and Joint Research, Kolling Institute, University of Sydney, Sydney, New South Wales, Australia
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Dhawan R, Young DA, Van Eemeren A, Shimmin A. Birmingham Hip Resurfacing at 20 years. Bone Joint J 2023; 105-B:946-952. [PMID: 37652450 DOI: 10.1302/0301-620x.105b9.bjj-2022-0713.r2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/02/2023]
Abstract
Aims The Birmingham Hip Resurfacing (BHR) arthroplasty has been used as a surgical treatment of coxarthrosis since 1997. We present 20-year results of 234 consecutive BHRs performed in our unit. Methods Between 1999 and 2001, there were 217 patients: 142 males (65.4%), mean age 52 years (18 to 68) who had 234 implants (17 bilateral). They had patient-reported outcome measures collected, imaging (radiograph and ultrasound), and serum metal ion assessment. Survivorship analysis was performed using Kaplan-Meier estimates. Revision for any cause was considered as an endpoint for the analysis. Results Mean follow-up was 20.9 years (19.3 to 22.4). Registry data revealed that 19 hips (8.1%) had been revised and 26 patients (12%) had died from causes unrelated to the BHR. Among the remaining 189 hips, 61% were available for clinical follow-up at 20 years (n = 115) and 70% of patients had biochemical follow-up (n = 132). The cumulative implant survival rate at 20 years for male patients was 96.5% (95% confidence interval (CI) 93.5 to 99.6), and for female patients 87% (95% CI 79.7 to 94.9). The difference was statistically significant (p = 0.029). The mean Oxford Hip Score, Hip disability and Osteoarthritis Outcome Score, and Forgotten Joint Score were 45 (29 to 48), 89 (43 to 100), and 84 (19 to 100), respectively. The mean scores for each of the five domains of the EuroQol five-dimension three-level questionnaire were 1.2, 1.0, 1.2, 1.3, and 1.1, and mean overall score 82.6 (50 to 100). Ultrasound showed no pseudotumour. Mean cobalt and chromium levels were 32.1 nmol/l (1 to 374) and 45.5 nmol/l (9 to 408), respectively. Conclusion This study shows that BHRs provide excellent survivorship and functional outcomes in young male patients. At 20 years, soft-tissue imaging and serum metal ion studies suggest that a metal-on-metal resurfacing implant can be well tolerated in a group of young patients.
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Affiliation(s)
- Rohit Dhawan
- Melbourne Orthopedic Group, Melbourne, Victoria, Australia
| | - David A Young
- Melbourne Orthopedic Group, Melbourne, Victoria, Australia
| | | | - Andrew Shimmin
- Melbourne Orthopedic Group, Melbourne, Victoria, Australia
- Monash University, Melbourne, Australia
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Ramkumar PN, Shaikh HJF, Woo JJ, Haeberle HS, Pang M, Brooks PJ. Hip resurfacing arthroplasty as an alternative to total hip arthroplasty in patients aged under 40 years. Bone Jt Open 2023; 4:408-415. [PMID: 37257853 DOI: 10.1302/2633-1462.46.bjo-2023-0015.r1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/02/2023] Open
Abstract
Aims The aims of the study were to report for a cohort aged younger than 40 years: 1) indications for HRA; 2) patient-reported outcomes in terms of the modified Harris Hip Score (HHS); 3) dislocation rate; and 4) revision rate. Methods This retrospective analysis identified 267 hips from 224 patients who underwent an hip resurfacing arthroplasty (HRA) from a single fellowship-trained surgeon using the direct lateral approach between 2007 and 2019. Inclusion criteria was minimum two-year follow-up, and age younger than 40 years. Patients were followed using a prospectively maintained institutional database. Results A total of 217 hips (81%) were included for follow-up analysis at a mean of 3.8 years. Of the 23 females who underwent HRA, none were revised, and the median head size was 46 mm (compared to 50 mm for males). The most common indication for HRA was femoroacetabular impingement syndrome (n = 133), and avascular necrosis ( (n = 53). Mean postoperative HHS was 100 at two and five years. No dislocations occurred. A total of four hips (1.8%) required reoperation for resection of heterotopic ossification, removal of components for infection, and subsidence with loosening. The overall revision rate was 0.9%. Conclusion For younger patients with higher functional expectations and increased lifetime risk for revision, HRA is an excellent bone preserving intervention carrying low complication rates, revision rates, and excellent patient outcomes without lifetime restrictions allowing these patients to return to activity and sport. Thus, in younger male patients with end-stage hip disease and higher demands, referral to a high-volume HRA surgeon should be considered.
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Affiliation(s)
- Prem N Ramkumar
- Hip Preservation Service, Hospital for Special Surgery, New York, New York, USA
- Long Beach Orthopaedic Institute, Long Beach, California, USA
| | - Hashim J F Shaikh
- Department of Orthopaedic Surgery, Rochester, University of Rochester Medical Center, Rochester, New York, USA
| | - Josh J Woo
- Department of Orthopaedic Surgery, Brown University, Warren Alpert School of Medicine, Providence, Rhode Island, USA
| | - Heather S Haeberle
- Hip Preservation Service, Hospital for Special Surgery, New York, New York, USA
| | - Michael Pang
- Department of Orthopaedic Surgery, Harvard Medical School, Cambridge, Massachusetts, USA
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8
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Zhang S, Liu Y, Ma M, Cao Z, Kong X, Chai W. Is Robotic-Assisted Technology Still Accurate in Total Hip Arthroplasty for Fibrous-Fused Hips? J Arthroplasty 2023; 38:129-134. [PMID: 35940352 DOI: 10.1016/j.arth.2022.07.023] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2022] [Revised: 07/25/2022] [Accepted: 07/25/2022] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Total hip arthroplasty (THA) for fibrous-fused hips is technically demanding. This study aimed to evaluate the precision and accuracy, as well as the rate of conversion of robotic-assisted THA in such difficult patients. METHODS We retrospectively analyzed 67 patients (84 hips) who underwent THA with fibrous-fused hips between August 2018 and June 2021 at our institution. Demographics, acetabular cup positioning, leg-length discrepancies, and postoperative Harris hip scores were recorded for all patients. Thirty-six patients (44 hips) who underwent robotic-assisted THA and 31 patients (40 hips) who underwent manual THA were enrolled in this study. RESULTS The robot accurately executed the preoperative plan, and there were no statistically significant differences between the preoperative planned anteversion, inclination, and postoperative measurements. In the robotic group, the percentage of acetabular cups in the safe zone was significantly higher than in the manual group (87.2 versus 55%, respectively, P = .042). The rate of conversion to manual THA for various reasons in the robotic-assisted THA group was 11.4% (5/44). Compared with manual THA, the mean increase in operative time for conversion from robotic-assisted to manual THA was 24 min (P < .001). CONCLUSION In patients who have fibrous-fused hips, preoperative planning can be accurately executed by robotic-assisted technology. Compared with manual THA, robotic-assisted THA had a remarkable advantage in improving the frequency of achieving cup positioning within the target zone. Overall, robotic-assisted technology was helpful in such difficult cases, and the approximately 11.4% of cases converted to manual THA are reminders that surgeons should be thoroughly prepared preoperatively.
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Affiliation(s)
- Shuai Zhang
- Medical School of Chinese PLA, Beijing, China; Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Yubo Liu
- Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China; School of Medicine, Nankai University, Tianjin, China
| | - Mingyang Ma
- Medical School of Chinese PLA, Beijing, China; Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Zheng Cao
- Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China; School of Medicine, Nankai University, Tianjin, China
| | - Xiangpeng Kong
- Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
| | - Wei Chai
- Senior Department of Orthopedics, The Fourth Medical Center of Chinese PLA General Hospital, Beijing, China; National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, Beijing, China
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Zhang S, Liu Y, Yang M, Ma M, Cao Z, Kong X, Chai W. Robotic-assisted versus manual total hip arthroplasty in obese patients: a retrospective case-control study. J Orthop Surg Res 2022; 17:368. [PMID: 35907875 PMCID: PMC9338672 DOI: 10.1186/s13018-022-03263-6] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/10/2022] [Accepted: 07/25/2022] [Indexed: 11/12/2022] Open
Abstract
Aims The objective of this study was to evaluate the accuracy of acetabular cup positioning in the obese patients when using robotic-assisted technology during total hip arthroplasty (THA). Methods Data were retrospectively collected from patients who underwent primary (THA) with a body mass index (BMI) ≥ 28 kg/m2 and ≥ 1 year of follow-up between January 2018 and December 2019. Their demographics, diagnosis, acetabular cup positioning, American Society of Anesthesiologists (ASA) score, Harris Hip Score (HHS), and Forgotten Joint Score (FJS) at the final follow-up were recorded for analysis. Results There were no statistically significant differences between the two groups in height, weight, BMI, ASA score, or preoperative Harris Hip Score (HHS). Also, there was no difference in inclination angle between the two groups (R-THA: 41.29° ± 3.04°; manual THA (M-THA): 40.47° ± 5.46°; P = 0.312). However, the mean anteversion angle was greater in the R-THA group (20.71° ± 1.98° vs. 19.08° ± 4.04°; P < 0.001). Compared to M-THA, R-THA more frequently achieved an acetabular cup angle within 5° of the target (anteversion, 98.1% vs. 78.1% P = 0.001; inclination, 88.5% vs. 53.1%, P < 0.001). The R-THA group was more advantageous in restoring the hip center of rotation (COR) and leg length difference (LLD). There was no statistical difference in postoperative HHS (P = 0.404) or FJS (P = 0.497) between the two groups. Conclusions Compared to manual technique, robotic-assisted technique provided more precise acetabular cup positioning and better leg length restoration for obese patients. The robotic-assisted technique was more advantageous in recovering the center of rotation position and achieved a higher proportion of the acetabular cup placed in the target safety zone. Further studies are needed to confirm the clinical outcomes of surgeries in obese patients using robotic-assisted technology.
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Affiliation(s)
- Shuai Zhang
- Medical School of Chinese PLA, No. 28 Fuxing Road, Haidian District, Beijing, China.,Senior Department of Orthopedics, the Forth Medical Center of Chinese PLA General Hospital, No. 51 Fucheng Road, Haidian District, Beijing, 100853, China.,National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, No. 28 Fuxing Road, Haidian District, Beijing, China
| | - Yubo Liu
- Senior Department of Orthopedics, the Forth Medical Center of Chinese PLA General Hospital, No. 51 Fucheng Road, Haidian District, Beijing, 100853, China.,National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, No. 28 Fuxing Road, Haidian District, Beijing, China.,School of Medicine, Nankai University, No. 94 Weijin Road, Nankai District, Tianjin, China
| | - Minzhi Yang
- Senior Department of Orthopedics, the Forth Medical Center of Chinese PLA General Hospital, No. 51 Fucheng Road, Haidian District, Beijing, 100853, China.,National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, No. 28 Fuxing Road, Haidian District, Beijing, China.,School of Medicine, Nankai University, No. 94 Weijin Road, Nankai District, Tianjin, China
| | - Mingyang Ma
- Medical School of Chinese PLA, No. 28 Fuxing Road, Haidian District, Beijing, China.,Senior Department of Orthopedics, the Forth Medical Center of Chinese PLA General Hospital, No. 51 Fucheng Road, Haidian District, Beijing, 100853, China.,National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, No. 28 Fuxing Road, Haidian District, Beijing, China
| | - Zheng Cao
- Senior Department of Orthopedics, the Forth Medical Center of Chinese PLA General Hospital, No. 51 Fucheng Road, Haidian District, Beijing, 100853, China.,National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, No. 28 Fuxing Road, Haidian District, Beijing, China.,School of Medicine, Nankai University, No. 94 Weijin Road, Nankai District, Tianjin, China
| | - Xiangpeng Kong
- Senior Department of Orthopedics, the Forth Medical Center of Chinese PLA General Hospital, No. 51 Fucheng Road, Haidian District, Beijing, 100853, China. .,National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, No. 28 Fuxing Road, Haidian District, Beijing, China.
| | - Wei Chai
- Senior Department of Orthopedics, the Forth Medical Center of Chinese PLA General Hospital, No. 51 Fucheng Road, Haidian District, Beijing, 100853, China. .,National Clinical Research Center for Orthopedics, Sports Medicine and Rehabilitation, No. 28 Fuxing Road, Haidian District, Beijing, China.
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10
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Peng L, Ma J, Zeng Y, Wu Y, Si H, Shen B. Clinical and radiological results of high offset tri-lock bone preservation stem in unilateral primary total hip arthroplasty at a minimum follow-up of 3 years. J Orthop Surg Res 2021; 16:635. [PMID: 34689823 PMCID: PMC8543806 DOI: 10.1186/s13018-021-02787-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 10/11/2021] [Indexed: 02/08/2023] Open
Abstract
Background Although the high offset Tri-Lock bone preservation stem (BPS) was used widely, few studies explored the clinical and radiological results. The purpose of this study was to determine the clinical and radiological results of high offset Tri-Lock BPS in unilateral primary total hip arthroplasty (THA) at a minimum follow-up of 3 years. Methods 55 patients who underwent cementless THA with high offset Tri-lock BPS from 2017 to 2018 were followed for a minimum follow-up of 3 years. Patients were assessed clinically for complications, Harris hip score (HHS), Western Ontario and McMaster Universities Osteoarthritis Index (WOMAC), and Oxford Hip Score (OHS). Femoral offset (FO), acetabular offset (AO), hip offset (HO), HO difference, and leg length discrepancy (LLD) were measured on the anteroposterior (AP) pelvic radiograph. Standard pelvic AP and lateral radiographs were used to evaluate for evidence of bone ingrowth, stem subsidence, stem alignment, radiolucent line around the stem, osteolysis, loosening, ectopic ossification, and femoral stress shielding. Results No patients reported complications during hospitalization nor the follow-up period. At a mean follow-up of 42.5 months, the mean HHS, WOMAC, and OHS scores showed a significant improvement from preoperative to the latest follow-up. No patients reported thigh pain. No revision nor sign of radiographic loosening had been detected. The high offset Tri-Lock BPS significantly improved the FO and HO postoperatively. HO difference and LLD were balanced postoperatively. No sign of stem subsidence, radiolucent line, osteolysis, loosening, ectopic ossification, nor severe stress shielding (more than grade 3–4) were observed at the latest follow-up. Conclusion The high offset Tri-Lock BPS demonstrated excellent clinical and radiographic outcomes at a minimum follow-up of 3 years. HO difference and LLD between legs decreased significantly and achieved balance postoperatively. Long-term follow-up is required for a definitive conclusion.
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Affiliation(s)
- Linbo Peng
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Jun Ma
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Yi Zeng
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Yuangang Wu
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Haibo Si
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China
| | - Bin Shen
- Department of Orthopedics, Orthopedic Research Institute, West China Hospital, Sichuan University, 37# Guoxue Road, Chengdu, 610041, Sichuan Province, People's Republic of China.
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11
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Yao M, Wang Y, Wei C, Han Y, Li H. Greater increase in femoral offset with use of collum femoris-preserving stem than Tri-Lock stem in primary total hip arthroplasty. J Int Med Res 2020; 48:300060520925999. [PMID: 32459103 PMCID: PMC7273761 DOI: 10.1177/0300060520925999] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/04/2023] Open
Abstract
OBJECTIVE This study was performed to compare the clinical outcomes and performance of the collum femoris-preserving (CFP) stem (Waldemar Link GmbH & Co., Hamburg, Germany) and the Tri-Lock stem (DePuy Orthopaedics, Warsaw, IN, USA) in terms of femoral offset (FO) and leg length reconstruction. METHODS Clinical and radiographic data of patients who underwent total hip arthroplasty with either a CFP stem or Tri-Lock stem from January 2016 to March 2017 were compared (65 and 57 patients, respectively). The Harris hip score and Western Ontario and McMaster Universities Osteoarthritis Index were recorded. The FO, femoral vertical offset, and neck-shaft angle were measured at the last follow-up. The occurrence of dislocation and periprosthetic fracture during the follow-up period was recorded. RESULTS The CFP stem induced significantly more FO than did the Tri-Lock stem on the operated side than contralateral side (3.63 ± 4.28 vs. 0.83 ± 5.46 mm). Significantly fewer patients had a >5-mm decrease in FO on the unaffected side in the CFP stem group (n = 1) than Tri-Lock stem group (n = 10). CONCLUSION Both stems similarly improved hip function and reconstructed the leg length, but the CFP stem was superior to the Tri-Lock stem in reconstructing FO.
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Affiliation(s)
- Mengxuan Yao
- Department of Osteonecrosis and Hip Surgery, the Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Yuchuan Wang
- Department of Osteonecrosis and Hip Surgery, the Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Congcong Wei
- Department of Osteonecrosis and Hip Surgery, the Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Yongtai Han
- Department of Osteonecrosis and Hip Surgery, the Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
| | - Huijie Li
- Department of Osteonecrosis and Hip Surgery, the Third Hospital of Hebei Medical University, Shijiazhuang, Hebei, P.R. China
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12
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Influencing Factors for Joint Perception After Total Hip Arthroplasty: Asian Cohort Study. J Arthroplasty 2020; 35:1307-1314. [PMID: 31980209 DOI: 10.1016/j.arth.2019.12.039] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/16/2019] [Revised: 12/14/2019] [Accepted: 12/20/2019] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Perceiving replaced joints as natural is one of the best scenario after total hip arthroplasty (THA). We investigated the distribution of and influencing factors for patient's joint perception after THA in Asian cohort, which is not well known. METHODS We mailed a questionnaire to Asian patients who had undergone THA in our institution between 2012 and 2016, and this study included 318 Asian patients. The questionnaire assessed patient's joint perception, Oxford Hip Score (OHS), Short Form-12 Health Survey (SF-12) physical, mental, and role component summaries, and satisfaction score. Leg length discrepancy and global femoral offset before and after THA were measured using radiographs. The patients were divided into 2 groups with patient's joint perception: natural and artificial perception groups. OHS, SF-12, satisfaction, leg length discrepancy, and global femoral offset were compared between natural and artificial perception groups, and which factors significantly influenced joint perception were determined. RESULTS Of the 318 patients, 165 patients (51.8%) perceived their replaced joint as a natural joint. OHS, SF-12 physical and role component summaries, and satisfaction score in natural perception group were significantly higher than those in artificial perception group, without significant difference in SF-12 mental component summary. Multivariate analysis showed that less of usual pain, easier to get in or out of a car, and osteoarthritis in the contralateral hip were positively associated with natural joint perception after THA. CONCLUSION This study indicated to surgeons that pain relief and improvement in getting in or out of a car after THA could lead to even better patient's joint perception.
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13
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Kase M, O'Loughlin PF, Aït-Si-Selmi T, Pagenstert G, Langlois J, Bothorel H, Bonnin MP. Pre-operative templating in THA. Part I: a classification of architectural hip deformities. Arch Orthop Trauma Surg 2020; 140:129-137. [PMID: 31696320 DOI: 10.1007/s00402-019-03298-1] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2019] [Indexed: 02/07/2023]
Abstract
INTRODUCTION While numerous classifications of hip arthritis have been proposed, none considered the magnitude and direction of femoral head translation relative to the native acetabulum. A more precise classification of architectural hip deformities is necessary to improve preoperative templating and anticipate surgical challenges of total hip arthroplasty (THA). The purpose of the present study was to introduce a classification system to distinguish different types of architectural hip deformities, based on femoral head translation patterns, and to evaluate its repeatability using plain radiographs (qualitative) and Computed Tomography (CT) measurements (quantitative). MATERIALS AND METHODS We studied pre-operative frontal and lateral hip radiographs and CT scans of 191 hips (184 patients) that received primary THA. The distance between the femoral head center (FC) and the acetabular center (AC) was measured, as well as femoral offset, acetabular offset, head center height, acetabular floor distance and femoral neck angle. The hips were classified qualitatively using frontal plain radiographs, and then quantitatively using CT scans (with an arbitrary threshold of 3 mm as Centered, Medialized, Lateralized, Proximalized or Proximo-lateralized. The agreement between qualitative and quantitative classification methods was compared for applying the same classification. RESULTS Qualitative classification identified 120 centered (63%), 8 medialized (4%), 49 lateralized (26%), 3 proximalized (2%), and 11 proximo-lateralized (6%) hips, while quantitative classification identified 116 centered (61%), 8 medialized (4%), 51 lateralized (27%), 5 proximalized (3%), and 11 proximo-lateralized (6%) hips. The agreement between the two methods was excellent (0.94; CI 0.90-0.98). Medialization reached 9.7 mm, while lateralization reached 10.9 mm, and proximalization reached 8.5 mm. Proximalized and proximo-lateralized hips had more valgus necks, while medialized hips had more varus necks (p = 0.003). CONCLUSIONS The classification system enabled repeatable distinction of 5 types of architectural hip deformities. The excellent agreement between quantitative and qualitative methods suggests that plain radiographs are sufficient to classify architectural hip deformities.
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Affiliation(s)
- Masanori Kase
- Department of Orthopaedic Surgery, Nissan Tamagawa Hospital, Setagaya-ku, Tokyo, Japan
| | - Padhraig F O'Loughlin
- Department of Orthopaedic Surgery, Mater Hospital Cork, Cork, Ireland
- Ramsay Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique Santy, Lyon, France
| | - Tarik Aït-Si-Selmi
- Ramsay Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique Santy, Lyon, France
- Artro Institute, Lyon, France
| | - Geert Pagenstert
- Department of Clinical Research, University of Basel, Basel, Switzerland
- Clarahof Clinic of Orthopaedic Surgery, Merian-Iselin-Hospital Swiss Olympic Medical Center, Basel, Switzerland
- Knee Institute Basel, Basel, Switzerland
| | - Jean Langlois
- Ramsay Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique Santy, Lyon, France
| | - Hugo Bothorel
- ReSurg SA, Rue Saint-Jean 22, 1260, Nyon, Switzerland.
| | - Michel P Bonnin
- Ramsay Santé, Hôpital Privé Jean Mermoz, Centre Orthopédique Santy, Lyon, France
- Artro Institute, Lyon, France
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14
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Lim JY, Kim BS, Yoon BH, Chang JS, Park CH, Koo KH. Lessons Learned from Long-Term Management of Hip Fracture in Patients with Osteopetrosis: A Report of Nine Hips in Five Patients. J Bone Metab 2019; 26:201-206. [PMID: 31555617 PMCID: PMC6746665 DOI: 10.11005/jbm.2019.26.3.201] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Revised: 08/20/2019] [Accepted: 08/21/2019] [Indexed: 11/11/2022] Open
Abstract
Background Treating patients with osteopetrosis is very challenging even in very skilled surgeons with many experiences. We present an account of 5 patients treated for hip fracture related problems occurring throughout their life due to this disease. Difficulties encountered during their treatment prompted us to present some general management principles. Methods From January 2003 to December 2016, 5 patients with osteopetrosis (9 hips; 3 men, 2 women), who underwent operative or conservative treatment were retrospectively reviewed. We evaluated their clinical features and rate of union, malunion and post-operative infection. Results Four of 5 patients (80%) suffered bilateral fracture, and 8 of 9 fractures (89%) are transverse and occurred at subtrochanteric area resulted from minor trauma. Among 9 hips, surgery was performed in seven hips. Nonunion were found in 3 hips (33%), malunion in 1 hip (11%) and oteomyelitis was developed in 2 hips (22%) at a median of 8.1 years. Conclusions Clinical features of hip fracture in osteopetrosis are very similar to atypical subtrochanteric femoral fractures. Patients should be informed of the possibilities of several anticipated complications including the risk of nonunion and infection after surgery.
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Affiliation(s)
- Jae-Young Lim
- Department of Orthopaedic Surgery, Chung-Ang University College of Medicine, Seoul, Korea
| | - Boo Seop Kim
- Chung-Ang University H.C.S. Hyundae Hospital, Namyangju, Korea
| | - Byung-Ho Yoon
- Department of Orthopaedic Surgery, Seoul Paik Hospital, Inje University College of Medicine, Seoul, Korea
| | - Jae Suk Chang
- Department of Orthopaedic Surgery, Asan Medical Center, University of Ulsan College of Medicine, Seoul, Korea
| | - Chan-Ho Park
- Department of Orthopaedic Surgery, Yeungnam University Medical Center, Daegu, Korea
| | - Kyung-Hoi Koo
- Department of Orthopaedic Surgery, Seoul National University Bundang Hospital, Seoul National University College of Medicine, Seongnam, Korea
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15
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Bolink SAAN, Lenguerrand E, Brunton LR, Hinds N, Wylde V, Heyligers IC, Blom AW, Whitehouse MR, Grimm B. The association of leg length and offset reconstruction after total hip arthroplasty with clinical outcomes. Clin Biomech (Bristol, Avon) 2019; 68:89-95. [PMID: 31177011 DOI: 10.1016/j.clinbiomech.2019.05.015] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 02/24/2019] [Accepted: 05/08/2019] [Indexed: 02/07/2023]
Abstract
BACKGROUND Restoring native hip anatomy and biomechanics is important to create a well-functioning hip arthroplasty. This study investigated the association of hip offset and leg length after hip arthroplasty with clinical outcomes, including patient reported outcome measures, the Trendelenburg Test and gait analysis. METHODS In 77 patients undergoing primary hip arthroplasty for osteoarthritis (age mean = 65 SD = 11 years; BMI mean = 27 SD = 5 kg/m2), hip offset and leg length discrepancy were measured on anteroposterior radiographs. The Western Ontario & McMaster Universities Osteoarthritis Index, the Trendelenburg Test and gait were assessed preoperatively, and at 3 and 12 months postoperatively. An inertial measurement unit was used to derive biomechanical parameters, including spatiotemporal gait parameters and tilt angles of the pelvis. Relationships between radiographic and functional outcomes were investigated, and subgroups of patients with >15% decreased and increased femoral offset were analysed separately. FINDINGS Patient-reported function scores and clinical tests demonstrated a few significant, weak correlations with radiographic outcomes (Spearman's ρ range = 0.26-0.32; p < 0.05). Undercorrection of femoral offset was associated with lower patient-reported function scores and with more step irregularity as well as step asymmetry during gait. Postoperative leg length inequality was associated with increased frontal plane tilt angle of the pelvis during the Trendelenburg Test and increased sagittal plane motion of the pelvis during gait. Femoral offset subgroups demonstrated no significant differences for patient-reported function scores and outcomes of the Trendelenburg Test and gait analysis. INTERPRETATION Reduced hip offset and leg length discrepancy following hip arthroplasty seem to be marginally associated with worse clinical outcomes.
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Affiliation(s)
- Stijn A A N Bolink
- Musculoskeletal Research Unit, School of Clinical Sciences, University of Bristol, Southmead Hospital, Bristol BS10 5NB, United Kingdom.
| | - Erik Lenguerrand
- Musculoskeletal Research Unit, School of Clinical Sciences, University of Bristol, Southmead Hospital, Bristol BS10 5NB, United Kingdom
| | | | - Nicole Hinds
- Musculoskeletal Research Unit, School of Clinical Sciences, University of Bristol, Southmead Hospital, Bristol BS10 5NB, United Kingdom
| | - Vikki Wylde
- Musculoskeletal Research Unit, School of Clinical Sciences, University of Bristol, Southmead Hospital, Bristol BS10 5NB, United Kingdom
| | - Ide C Heyligers
- Zuyderland Medical Center Heerlen, Dept of Orthopaedics, Henri Dunantstraat 5, 6419 PC Heerlen, the Netherlands
| | - Ashley W Blom
- Musculoskeletal Research Unit, School of Clinical Sciences, University of Bristol, Southmead Hospital, Bristol BS10 5NB, United Kingdom
| | - Michael R Whitehouse
- Musculoskeletal Research Unit, School of Clinical Sciences, University of Bristol, Southmead Hospital, Bristol BS10 5NB, United Kingdom
| | - Bernd Grimm
- The Human Motion Institute, Hohenlindener Str. 1, 81677 Munich, Germany
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16
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Hellman MD, Ford MC, Barrack RL. Is there evidence to support an indication for surface replacement arthroplasty?: a systematic review. Bone Joint J 2019; 101-B:32-40. [PMID: 30648490 DOI: 10.1302/0301-620x.101b1.bjj-2018-0508.r1] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
AIMS Surface replacement arthroplasty (SRA), compared with traditional total hip arthroplasty (THA), is more expensive and carries unique concern related to metal ions production and hypersensitivity. Additionally, SRA is a more demanding procedure with a decreased margin for error compared with THA. To justify its use, SRA must demonstrate comparable component survival and some clinical advantages. We therefore performed a systematic literature review to investigate the differences in complication rates, patient-reported outcomes, stress shielding, and hip biomechanics between SRA and THA. MATERIALS AND METHODS A systematic review of the literature was completed using MEDLINE and EMBASE search engines. Inclusion criteria were level I to level III articles that reported clinical outcomes following primary SRA compared with THA. An initial search yielded 2503 potential articles for inclusion. Exclusion criteria included review articles, level IV or level V evidence, less than one year's follow-up, and previously reported data. In total, 27 articles with 4182 patients were available to analyze. RESULTS Fracture and infection rates were similar between SRA and THA, while dislocation rates were lower in SRA compared with THA. SRA demonstrated equivalent patient-reported outcome scores with greater activity scores and a return to high-level activities compared with THA. SRA more reliably restored native hip joint biomechanics and decreased stress shielding of the proximal femur compared with THA. CONCLUSION In young active men with osteoarthritis, there is evidence that SRA offers some potential advantages over THA, including: improved return to high level activities and sport, restoration of native hip biomechanics, and decreased proximal femoral stress shielding. Continued long-term follow up is required to assess ultimate survivorship of SRA.
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Affiliation(s)
- M D Hellman
- California Orthopedics and Spine, Larkspur, California, USA
| | - M C Ford
- Campbell Clinic Orthopaedics, Germantown, Tennessee, USA
| | - R L Barrack
- Department of Orthopedic Surgery, Washington University School of Medicine, Barnes-Jewish Hospital, St. Louis, Missouri, USA
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17
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Eethakota VVS, Vaishnav V, Johnston L, Abboud R, Wang W. Comparison of revision risks and complication rates between total HIP replacement and HIP resurfacing within the similar age group. Surgeon 2018; 16:339-349. [PMID: 29907524 DOI: 10.1016/j.surge.2018.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2018] [Revised: 05/04/2018] [Accepted: 05/20/2018] [Indexed: 11/29/2022]
Abstract
BACKGROUND AND PURPOSE Currently it is not clear whether age is a factor affecting revisions in total hip replacement (THR) and hip resurfacing (HR). This study aimed to investigate which of THR or HR has a higher risk in terms of revision and complication within similar age groups. METHODS A systemic review was performed for published literature research databases and local data and compared the two procedures under the condition that both groups of patients were age matched. Meta-analysis techniques were used to analyse revision and complication rates. Twenty-seven literature studies were included along with local audit data. In total, 2520 HR procedures were compared with age-matched 2526 of THR procedures. MAIN FINDINGS It was found that revision risk of HR is significantly higher than THR (risk ratio 1.65, 95% CI 1.28-2.31, p < 0.0001), highlighting that HR has a slightly higher chance of reoperation when compared to THR within the similar age group population. In terms of complications, HR was found to have an advantage over THR (risk ratio 0.84, 95% CI 0.73-0.96, p < 0.01). CONCLUSION THR had a lower revision risk but a slightly higher complication risk than HR under the condition that the two surgical procedures were applied to similar age groups of patients. In other words, age has not played an important role in revision and complication. Survivorship cannot be measured as follow-up periods were different in the studies used.
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Affiliation(s)
| | - Vinod Vaishnav
- Department of Orthopaedic and Trauma Surgery, Ninewells Hospital and Medical School, TORT Centre, University of Dundee, Dundee, UK
| | - Linda Johnston
- Department of Orthopaedic and Trauma Surgery, Ninewells Hospital and Medical School, TORT Centre, University of Dundee, Dundee, UK
| | - Rami Abboud
- Department of Orthopaedic and Trauma Surgery, Ninewells Hospital and Medical School, TORT Centre, University of Dundee, Dundee, UK
| | - Weijie Wang
- Department of Orthopaedic and Trauma Surgery, Ninewells Hospital and Medical School, TORT Centre, University of Dundee, Dundee, UK.
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18
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Meermans G, Doorn JV, Kats JJ. Restoration of the centre of rotation in primary total hip arthroplasty: the influence of acetabular floor depth and reaming technique. Bone Joint J 2017; 98-B:1597-1603. [PMID: 27909120 DOI: 10.1302/0301-620x.98b12.bjj-2016-0345.r1] [Citation(s) in RCA: 56] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/28/2016] [Accepted: 08/16/2016] [Indexed: 01/14/2023]
Abstract
AIMS One goal of total hip arthroplasty is to restore normal hip anatomy. The aim of this study was to compare displacement of the centre of rotation (COR) using a standard reaming technique with a technique in which the acetabulum was reamed immediately peripherally and referenced off the rim. PATIENTS AND METHODS In the first cohort the acetabulum was reamed to the floor followed by sequentially larger reamers. In the second cohort the acetabulum was only reamed peripherally, starting with a reamer the same size as the native femoral head. Anteroposterior pelvic radiographs were analysed for acetabular floor depth and vertical and horizontal position of the COR. RESULTS Horizontally, the mean medial displacement of the COR was 0.8 mm (standard deviation (sd) 1.4) in the peripheral remaing group and 5.0 mm (sd 3.30) in the standard reaming group (p < 0.001). Vertically, the mean superior displacement of the COR was 0.7 mm (sd 1.3) in the peripheral reaming group and 3.7 mm (sd 2.6) in the standard reaming group (p < 0.001). In the standard reaming group, there was a strong correlation between the pre-operative acetabular floor depth and displacement of the COR (p < 0.001). CONCLUSION Reaming the acetabulum to the floor can lead to significant displacement of the COR medially and superiorly. This displacement is related to the pre-operative acetabular floor depth and cannot always be compensated by using a high offset stem. Cite this article: Bone Joint J 2016;98-B:1597-603.
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Affiliation(s)
- G Meermans
- Bravis Hospital, Boerhaaveplein 1, 4624VT Bergen op Zoom, The Netherlands
| | - J Van Doorn
- Bravis Hospital, Boerhaaveplein 1, 4624VT Bergen op Zoom, The Netherlands
| | - J-J Kats
- Bravis Hospital, Boerhaaveplein 1, 4624VT Bergen op Zoom, The Netherlands
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