1
|
Chen P, Liu W, Wu C, Ruan P, Zeng J, Ji W. Fluoroscopy-guided direct anterior approach total hip arthroplasty provides more accurate component positions in the supine position than in the lateral position. BMC Musculoskelet Disord 2023; 24:884. [PMID: 37957622 PMCID: PMC10644644 DOI: 10.1186/s12891-023-07014-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/23/2023] [Accepted: 11/02/2023] [Indexed: 11/15/2023] Open
Abstract
PURPOSE The position of the acetabular and femoral components is critical for stability and wear resistance. The aim of this study is to investigate whether the fluoroscopy-guided direct anterior approach in the supine position (S-DAA) is more helpful in improving the position of acetabular and femoral components than the fluoroscopy-guided direct anterior approach in the lateral decubitus position (L-DAA). METHODS A retrospective analysis of 76 cases of fluoroscopy-guided direct anterior approach total hip arthroplasty (38 cases in the S-DAA and 38 cases in the L-DAA group) was performed in one hospital from 2019 to 2021. The differences in inclination, anteversion, femoral offset (FO), global offset (GO), and leg length discrepancy (LLD) measurements during and after surgery were analyzed. The postoperative femoral offset (FO), global offset (GO), leg length discrepancy (LLD), and preoperative and postoperative Harris hip score were compared between the two groups. RESULTS In the S-DAA group, there were no significant differences in the mean intraoperative inclination angle anteversion angle, FO, GO, and LLD compared to the postoperative values, whereas in the L-DAA group, there were significant differences between the intraoperative and postoperative measurements (P < 0.001, P = 0.009, P<0.001, P<0.001 and P = 0.008, respectively). Additionally, there were significant differences in the accuracy of LLD, FO, and GO between the two groups (P < 0.001). Compared with the L-DAA group, the average differences of inclination, anteversion, LLD, FO, and GO during and after operation in the S-DAA group were smaller, and the consistency was higher. There was a significant difference in Harris hip score between the two groups at 1 week after surgery (P = 0.033). There was no significant difference in Harris hip score between 1 month and 3 months after surgery (P = 0.482 and P = 0.797, respectively). CONCLUSIONS In the supine group, the direct anterior approach (DAA) provides more accurate positioning of the acetabular and femoral components. However, there was no significant difference in hip joint function and activity between the two groups at follow-up.
Collapse
Affiliation(s)
- Penglei Chen
- The First Clinical Medical College, Zhejiang Chinese Medical University, 310006, Hangzhou, China
| | - Wangxin Liu
- Chuzhou Hospital of Integrated Chinese and Western Medicine, 788 Huifeng East Road, Langya District, 239000, Chuzhou, Anhui Province, China
| | - Cong Wu
- The First Clinical Medical College, Zhejiang Chinese Medical University, 310006, Hangzhou, China
| | - Pengfei Ruan
- The First Clinical Medical College, Zhejiang Chinese Medical University, 310006, Hangzhou, China
| | - Jicheng Zeng
- The First Clinical Medical College, Zhejiang Chinese Medical University, 310006, Hangzhou, China
| | - Weifeng Ji
- The First Affiliated Hospital of Zhejiang Chinese Medical University, No9,9th Street, Qiantang District, 310020, Hangzhou, Zhejiang Province, China.
| |
Collapse
|
2
|
Luu K, Nishioka ST, Lawton DRY, Unebasami E, Andrews SN, Nakasone CK. Influence of obesity and intra-operative imaging guidance technology on acetabular cup positioning in total hip arthroplasty. Arch Orthop Trauma Surg 2023; 143:6857-6863. [PMID: 37270739 DOI: 10.1007/s00402-023-04922-x] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2022] [Accepted: 05/21/2023] [Indexed: 06/05/2023]
Abstract
BACKGROUND Accuracy of acetabular cup positioning during total hip arthroplasty (THA) can be improved with intra-operative imaging but may be influenced by body mass index (BMI). This study assessed the influence of BMI (kg/m2) on cup accuracy when using intra-operative fluoroscopy (IF) alone or supplemented with a commercial product. METHODS This retrospective review included four consecutive cohorts of patients having undergone anterior approach THA with IF alone (2011-2015), IF and Overlay (2015-2016) (Radlink Inc., Los Angeles, CA), IF and Grid (2017-2018) (HipGrid Drone™, OrthoGrid Systems Inc., Salt Lake City, UT) and IF and Digital (2018-2020) (OrthoGrid Phantom®, OrthoGrid Systems, Inc., Salt Lake City, UT). Component placement accuracy was measured on 6-week post-operative weight bearing radiographs and compared between four BMI patient groups (BMI ≤ 25, 25 < BMI ≤ 30, 30 < BMI ≤ 35, and 35 < BMI). Total fluoroscopy times were also recorded directly from the fluoroscopy unit. RESULTS Abduction angle significantly increased as BMI increased (p = 0.003) with IF alone but no difference was present in groups with guidance technology. Anteversion was significantly different between BMI groups for IF alone (p = 0.028) and Grid (p = 0.027) but was not different in Overlay (p = 0.107) or Digital (p = 0.210). Fluoroscopy time was significantly different between BMI categories for IF alone (p = 0.005) and Grid (p = 0.018) but was not different in Overlay (p = 0.444) or Digital (p = 0.170). CONCLUSION Morbid obesity (BMI > 35) increases risk for malpositioning of acetabular cups and increases surgical time with IF alone or the Grid. Additional IF guidance technology (Overlay or Digital) increased cup positioning accuracy without decreasing surgical efficiency.
Collapse
Affiliation(s)
- Kayti Luu
- John A Burns School of Medicine, 651 Ilalo Street, Honolulu, HI, 96813, USA
| | - Scott T Nishioka
- John A Burns School of Medicine, 651 Ilalo Street, Honolulu, HI, 96813, USA
| | - Dylan R Y Lawton
- John A Burns School of Medicine, 651 Ilalo Street, Honolulu, HI, 96813, USA
| | - Emily Unebasami
- Department of Orthopedic Surgery, Straub Medical Center, 888 South King Street, Honolulu, HI, 96818, USA
| | - Samantha N Andrews
- Department of Surgery, University of Hawai'I, John A Burns School of Medicine, 1356 Lusitana Street, Honolulu, HI, 96813, USA
- Department of Orthopedic Surgery, Straub Medical Center, 888 South King Street, Honolulu, HI, 96818, USA
| | - Cass K Nakasone
- Department of Surgery, University of Hawai'I, John A Burns School of Medicine, 1356 Lusitana Street, Honolulu, HI, 96813, USA.
- Department of Orthopedic Surgery, Straub Medical Center, 888 South King Street, Honolulu, HI, 96818, USA.
| |
Collapse
|
3
|
Sun C, Lee WG, Ma Q, Zhang X, Zhao Z, Cai X. Does intraoperative fluoroscopy improve acetabular component positioning and limb-length discrepancy during direct anterior total hip arthroplasty? A meta-analysis. J Orthop Surg Res 2023; 18:586. [PMID: 37553600 PMCID: PMC10410871 DOI: 10.1186/s13018-023-04023-w] [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: 05/22/2023] [Accepted: 07/16/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND The positioning of implant components for total hip arthroplasty (THA) is essential for joint stability, polyethylene liner wear, and range of motion. One potential benefit of the direct anterior approach (DAA) for THA is the ability to use intraoperative fluoroscopy for acetabular cup positioning and limb-length evaluation. Previous studies comparing intraoperative fluoroscopy with no fluoroscopy during DAA have reported conflicting results. This meta-analysis aimed to evaluate whether intraoperative fluoroscopy improves component positioning compared to no fluoroscopy during direct anterior total hip arthroplasty. METHODS A systematic review following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines was conducted. We searched Web of Science, EMBASE, PubMed, Cochrane Controlled Trials Register, Cochrane Library, Highwire, CBM, CNKI, VIP, and Wanfang database in May 2023 to identify studies involving intraoperative fluoroscopy versus no fluoroscopy during direct anterior total hip arthroplasty. Finally, we identified 1262 hips assessed in seven studies. RESULTS There were no significant differences in terms of acetabular cup inclination angle (ACIA, P = 0.21), ACIA within safe zone rate (P = 0.97), acetabular cup anteversion angle (ACAA, P = 0.26); ACAA within safe zone rate (P = 0.07), combined safe zone rate (P = 0.33), and limb-length discrepancy (LLD, P = 0.21) between two groups. CONCLUSION Even though intraoperative fluoroscopy was not related to an improvement in cup location or LDD. With fewer experienced surgeons, the benefit of intraoperative fluoroscopy might become more evident. More adequately powered and well-designed long-term follow-up studies were required to determine whether the application of the intraoperative fluoroscopy for direct anterior total hip arthroplasty will have clinical benefits and improve the survival of prostheses.
Collapse
Affiliation(s)
- Changjiao Sun
- Department of Orthopedic, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, No.168 Litang Road, Dongxiaokou Town, Changping District, Beijing, 102218, China
| | - Woo Guan Lee
- FRCS (Edinburgh) Kuching Specialist Hospital Sarawak, Tabuan Stutong Commercial Centre, 93350, Kuching Sarawak, Malaysia
| | - Qi Ma
- Department of Orthopedic, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, No.168 Litang Road, Dongxiaokou Town, Changping District, Beijing, 102218, China
| | - Xiaofei Zhang
- Department of Clinical Epidemiology and Biostatistics, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, No.168 Litang Road, Dongxiaokou Town, Changping District, Beijing, 102218, China
| | - Zhe Zhao
- Department of Orthopedic, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, No.168 Litang Road, Dongxiaokou Town, Changping District, Beijing, 102218, China.
| | - Xu Cai
- Department of Orthopedic, Beijing Tsinghua Changgung Hospital, School of Clinical Medicine, Tsinghua University, No.168 Litang Road, Dongxiaokou Town, Changping District, Beijing, 102218, China.
| |
Collapse
|
4
|
Lecoultre Y, Danek J, Rompen IF, van de Wall BJM, Haefeli PC, Beeres FJP, Babst R, Link BC. Intraoperative imaging in hip arthroplasty: a meta-analysis and systematic review of randomized controlled trials and observational studies. ARTHROPLASTY 2023; 5:20. [PMID: 37024967 PMCID: PMC10080809 DOI: 10.1186/s42836-023-00173-8] [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: 12/14/2022] [Accepted: 02/20/2023] [Indexed: 04/08/2023] Open
Abstract
BACKGROUND Intraoperative fluoroscopy (IFC) is gaining popularity in total hip arthroplasty (THA), with the aim to achieve better component positioning and therefore eventually reduced revision rates. This meta-analysis investigated the benefit of IFC by comparing it to intraoperative assessment alone. The primary outcome was component positioning and the secondary outcomes included complications and revision rates. METHODS PubMed, Embase and Cochrane Central Register of Controlled Trials were searched for both randomized clinical trials (RCT) and observational studies. Effect estimates for radiographic cup position, offset/leg length difference and outliers from a safe zone were pooled across studies using random effects models and presented as a weighted odds ratio (OR) with a corresponding 95% confidence interval (95% CI). RESULTS A total of 10 observational studies involving 1,394 patients were included. No randomized trials were found. IFC showed no significant reduction in acetabular cup position (inclination and anteversion), offset, leg-length discrepancies, revision (none reported) or overall complication rates. CONCLUSION The current meta-analysis found no differences in cup positioning, offset, leg length discrepancy, the incidence of complications or revision surgery. It should be acknowledged that the included studies were generally performed by experienced surgeons. The benefit of intraoperative fluoroscopy might become more evident at an early phase of the learning curve for this procedure. Therefore, its role has yet to be defined.
Collapse
Affiliation(s)
| | - Jan Danek
- Luzerner Kantonsspital, Lucerne, 6000, Switzerland
| | | | | | | | | | - Reto Babst
- Luzerner Kantonsspital, Lucerne, 6000, Switzerland
- Faculty of Health Sciences and Medicine, University of Lucerne, Lucerne, 6000, Switzerland
| | - Björn C Link
- Luzerner Kantonsspital, Lucerne, 6000, Switzerland
| |
Collapse
|
5
|
Free MD, Barnes I, Hutchinson M, Harvie P. Preoperative radiographs to predict component malposition in direct anterior approach total hip arthroplasty. Hip Int 2023; 33:207-213. [PMID: 34424781 DOI: 10.1177/11207000211037596] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION There is conflicting evidence as to whether or not patients undergoing total hip arthroplasty (THA) via the direct anterior approach (DAA) have increased risk of component malposition. The aim of this study was to investigate whether specific preoperative radiographic features were predictive of postoperative component malposition in DAA THA. PATIENTS AND METHODS We examined 204 THA operations performed for osteoarthritis via the DAA at a single institution. Preoperative radiographs were analysed with numerous pre-specified measurements and classifications being recorded. Postoperative radiographs were analysed to determine if any of these preoperative radiographic factors correlated with component malposition in regard to cup inclination, cup version, femoral stem coronal alignment, leg-length discrepancy (LLD) and femoral offset discrepancy. RESULTS Numerous preoperative factors were associated with component malposition. Coxa profunda was found to be a significant predictor of cup anteversion being outside of the target range (p = 0.0089) and an increased centre-edge angle was a significant predictor for a postoperative LLD (p = 0.0134). A decreased neck-shaft angle (p = 0.0007) and a lower preoperative LLD (p = 0.0019) were both predictive of femoral stem coronal malalignment. CONCLUSIONS Preoperative radiographs can be a valuable tool for surgeons in predicting patients at risk of component malposition in DAA THA.
Collapse
Affiliation(s)
- Matthew D Free
- Orthopaedics Department, Royal Hobart Hospital, Hobart, TAS, Australia
| | - Ian Barnes
- Orthopaedics Department, Royal Hobart Hospital, Hobart, TAS, Australia
| | | | - Paul Harvie
- Orthopaedics Department, Royal Hobart Hospital, Hobart, TAS, Australia
| |
Collapse
|
6
|
Thorne TJ, Wright AR, Opanova MI, Mitsumori LM, Lawton DRY, Unebasami EM, Nakasone CK. Impact of intraoperative fluoroscopic beam positioning relative to the hip and pelvis on perceived acetabular component position. J Orthop 2023; 35:115-119. [PMID: 36467427 PMCID: PMC9712816 DOI: 10.1016/j.jor.2022.11.014] [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: 09/06/2022] [Revised: 11/07/2022] [Accepted: 11/21/2022] [Indexed: 11/25/2022] Open
Abstract
Background Parallax is poorly understood and can mislead surgeons using intraoperative fluoroscopy (IF) to guide cup placement during anterior approach (AA) total hip arthroplasty. The purpose of this study was to examine how changes in fluoroscopic beam positioning in relation to the hip and pelvis affects the projected acetabular image. Methods An acetabular component was positioned in an anatomic pelvis model in 45° and 20° of abduction and anteversion, respectively using a computer assisted cup targeting system. Fluoroscopic images were taken at various caudal and cranially directed angles with the fluoroscopic beam centered over the hip then pelvis. In each position, four independent observers measured the abduction and anteversion angles of the projected cup image using the same computer targeting system. Results Cup abduction and anteversion measured 43.5° and 19.5° when IF was centered over the hip and 40.5 and 27.5° when centered over the pelvis in the neutral position. Increasing the caudal direction of the beam 20° increased the projected abduction/anteversion angles by approximately 7°/12° and 9°/16° when centered over the hip and pelvis respectively. Increasing the cranial direction of the beam 20° decreased the measured abduction/anteversion angles by roughly 4°/20° and 4°/24° when centered over the hip and pelvis, respectively. Conclusion The projected image of the acetabular component can change dramatically depending on fluoroscopic beam position relative to the hip and pelvis. Recognizing the approximate direction and magnitude of change with differing fluoroscopy positions may help surgeons avoid cup malpositioning.
Collapse
Affiliation(s)
- Tyler J. Thorne
- The University of Hawai'i, John A Burns School of Medicine, 651 Ilalo Street, Honolulu, HI, 96813, USA
| | - Anne R. Wright
- The University of Hawai'i, John A. Burns School of Medicine, Department of Surgery, 1356 Lusitana Street, Honolulu, HI, 96813, USA
| | - Mariya I. Opanova
- The University of Hawai'i, John A. Burns School of Medicine, Department of Surgery, 1356 Lusitana Street, Honolulu, HI, 96813, USA
| | - Lee M. Mitsumori
- Straub Medical Center, Bone & Joint Center, 888 South King Street, Honolulu, HI, 96818, USA
| | - Dylan RY. Lawton
- Straub Medical Center, Bone & Joint Center, 888 South King Street, Honolulu, HI, 96818, USA
| | - Emily M. Unebasami
- Straub Medical Center, Bone & Joint Center, 888 South King Street, Honolulu, HI, 96818, USA
| | - Cass K. Nakasone
- The University of Hawai'i, John A. Burns School of Medicine, Department of Surgery, 1356 Lusitana Street, Honolulu, HI, 96813, USA
- Straub Medical Center, Bone & Joint Center, 888 South King Street, Honolulu, HI, 96818, USA
| |
Collapse
|
7
|
DeJesus J, Nishioka S, Andrews SN, Mathews K, Nakasone CK. Improved hip symmetry with an adjustable fluoroscopic grid during total hip arthroplasty. Hip Int 2022:11207000221089274. [PMID: 36127848 DOI: 10.1177/11207000221089274] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND The use of intraoperative fluoroscopy (IF) is common with direct anterior total hip arthroplasty (THA), however image distortion in IF may limit its usefulness. The supplementation of IF with an adjustable grid (AG) may provide consistently better accuracy in component placement. Therefore, the purpose of this study was to compare the accuracy, consistency, and surgical efficiency between IF only and AG supplementation. METHODS 2 cohorts were retrospectively evaluated, including 573 IF only patients and 211 AG patients having undergone unilateral THA between 2011 and 2018. Post-THA radiographic assessment was performed to evaluate the accuracy of component placement, with target placements for global hip offset (GHO) and leg-length differences (LLD) <10 mm and acetabular cup abduction of 45° (±10°). Accuracy and surgical efficiency were evaluated between groups and over time. RESULTS The AG group had a significant greater percentage of components placed within the target zone compared to IF only for GHO (99.5%, 92.7%, p < 0.001), LLD (99.1%, 96.5%, p = 0.039) and abduction (99.5%, 96.3%, p = 0.009), with no difference in fluoroscopic time (p = 0.973). Over time, accuracy was significantly different in IF group for GHO (p = 0.008) and abduction (p = 0.002) and trended toward significance for LLD (p = 0.055). There were no significant differences over time for the AG group. CONCLUSIONS The addition of an AG to IF significantly increased the accuracy of component placement during direct anterior THA. These results were consistent over 2 years of use and did not decrease surgical efficiency.
Collapse
Affiliation(s)
| | - Scott Nishioka
- Straub Medical Center, Bone and Joint Center, Honolulu, HI, USA
| | - Samantha N Andrews
- Straub Medical Center, Bone and Joint Center, Honolulu, HI, USA.,Department of Surgery, University of Hawai'i, Honolulu, HI, USA
| | - Kristin Mathews
- Straub Medical Center, Bone and Joint Center, Honolulu, HI, USA
| | - Cass K Nakasone
- Straub Medical Center, Bone and Joint Center, Honolulu, HI, USA.,Department of Surgery, University of Hawai'i, Honolulu, HI, USA
| |
Collapse
|
8
|
Levitsky MM, Neuwirth AL, Geller JA. Anterior-Based Muscle-Sparing (ABMS) Approach for Total Hip Arthroplasty. JBJS Essent Surg Tech 2022; 12:e21.00061. [PMID: 36816521 PMCID: PMC9931043 DOI: 10.2106/jbjs.st.21.00061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The anterior-based muscle-sparing (ABMS) technique for total hip arthroplasty (THA) has gained popularity in recent years because of its proposed advantages in terms of postoperative pain and periprosthetic dislocation risk. Description The procedure is performed with the patient in the supine position. A minimally invasive Watson-Jones approach is utilized to access the hip. Fluoroscopy can be utilized intraoperatively to assess acetabular cup position, version, and inclination. Femoral canal fill and leg lengths can also be assessed with use of fluoroscopy. Alternatives Nonoperative alternatives for the treatment of hip osteoarthritis include nonsteroidal anti-inflammatory drugs, physical therapy, and corticosteroid injections into the hip joint. Surgical alternatives to this procedure include the posterior approach (Moore or Southern), the direct lateral approach (Hardinge), and the direct anterior approach (Smith-Petersen). The Watson-Jones approach can also be performed with the patient in the lateral decubitus position (unlike in our technique where the patient is supine). Rationale The anterolateral (Watson-Jones) approach to the hip has been shown to be superior to the historically more common posterior approach with regard to length of hospital stay and dislocation risk1,2. Supine positioning for this approach offers multiple advantages compared with lateral decubitus positioning. Leg lengths can be assessed intraoperatively both fluoroscopically and with manual palpation of the medial malleoli. Cup position can be assessed radiographically as well3. Supine positioning also allows for easily reproducible patient positioning. Expected Outcomes Compared with the historically common posterior approach to the hip for THA, the anterolateral approach to the hip leads to, on average, a lower risk of hip dislocation1,2. In a 2002 study by Masonis and Bourne, the dislocation rate for the posterior approach was 3.23% (193 of 5,981), whereas the dislocation rate was 2.18% (18 of 826) for patients who underwent THA via the anterolateral approach1. In a study by Ritter et al. in 2001, which followed patients for 1 year postoperatively, no patients in the anterolateral approach group experienced a dislocation compared with 4.21% of patients in the posterior approach group2. With use of the present technique, patients will benefit from the advantages of the anterolateral approach to the hip; however, they will also benefit from easy intraoperative leg length assessment and from radiographic assistance with regard to determining the appropriate position of the femoral and acetabular components3. In a study of 199 patients (including 98 patients who had intraoperative fluoroscopy and 101 who did not), 80% of implants in the fluoroscopy group were within the combined safe zone compared with 63% in the non-fluoroscopy group. However, this approach is not without its limitations. As mentioned in the above studies, dislocation remains a possible complication of the procedure, and a minimally invasive anterior-based approach can lead to intraoperative femoral fractures when exposure and releases are inadequate4. Femoral nerve palsies are also possible with excessive medial retraction during acetabular exposure. Additionally, the benefit of a reduction in the incidence of hip dislocation compared with a posterior approach might be overstated given improvement in posterior-approach dislocation rates if posterior soft-tissue repair is used5. Both direct anterior and anterolateral approaches have the same risks of fracture with poor exposure and of neurapraxia with excessive retraction, and there does not appear to be any difference in dislocation risk between these 2 approaches6. Important Tips Although a pannus is more detrimental to a direct anterior approach, it could overlie the desired incision in the ABMS approach as well. The pannus could be held out of the field by taping it to the contralateral shoulder before preparing and draping.The preparative process is more time-consuming because both legs must be sterile for this procedure.Acetabular exposure often requires an assistant standing on the contralateral side of the table.Although not often needed, the obturator internus and gemelli might need to be released in order to ensure adequate exposure of the femur.If femoral canal exposure is still insufficient, a femoral suspension hook system might be needed. Acronyms & Abbreviations ASIS = anterior superior iliac spineTFL = tensor fasciae lataeITB = iliotibial bandPOD = postoperative dayIV = intravenousBID = twice daily.
Collapse
Affiliation(s)
- Matthew M. Levitsky
- Columbia University Medical Center/New York Presbyterian Hospital, New York, NY,Email for corresponding author:
| | | | - Jeffrey A. Geller
- Columbia University Medical Center/New York Presbyterian Hospital, New York, NY
| |
Collapse
|
9
|
Kirchner GJ, Smith NP, Dunleavy ML, Nikkel LE. Intraoperative Imaging in Total Hip Arthroplasty Is Cost-Effective Regardless of Surgical Approach. J Arthroplasty 2022; 37:S803-S806. [PMID: 34998907 DOI: 10.1016/j.arth.2021.12.039] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/01/2021] [Accepted: 12/30/2021] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Component positioning in total hip arthroplasty (THA) may be improved with utilization of intraoperative imaging. The purpose of this study is to determine if intraoperative imaging during THA is cost-effective. METHODS A break-even analysis was used as a model for cost-effectiveness, which incorporates cost of imaging (including direct charges and the additional time required for imaging), rate of revision surgery, and cost of revision surgery, yielding a final revision rate that needs to be achieved with use of intraoperative imaging in order for its use to be cost-effective. Absolute risk reduction (ARR) is determined by the difference between the initial revision rate and final revision rate. RESULTS At an anticipated institutional cost of $120 and requiring 4 additional minutes, intraoperative fluoroscopy would be cost-effective if the baseline rate of revision due to component mispositioning (0.62%) is reduced to 0.46%. Intraoperative flat plate radiographs ($127) are cost-effective at an ARR of 0.16%. Cost-effectiveness is achieved with lower ARR in the setting of lower imaging costs ($15, ARR 0.02%), and higher ARR with higher imaging costs ($225, ARR 0.29%). ARR for cost-effectiveness is independent of baseline revision rate, but varies with the cost of revision procedures. CONCLUSION At current revision rates for component malpositioning, only 1 revision among 400 THAs needs to be prevented for the utilization of fluoroscopy (or 1 in 385 THAs with flat plate imaging), to achieve cost-effectiveness.
Collapse
Affiliation(s)
- Gregory J Kirchner
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, PA
| | - Nathan P Smith
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, PA
| | - Mark L Dunleavy
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, PA
| | - Lucas E Nikkel
- Department of Orthopaedics and Rehabilitation, Penn State College of Medicine, Penn State Milton S. Hershey Medical Center, Hershey, PA
| |
Collapse
|
10
|
Thorne T, Nishioka S, Andrews S, Mathews K, Nakasone C. Component placement accuracy of two digital intraoperative fluoroscopy supplementation systems in direct anterior total hip arthroplasty. Arch Orthop Trauma Surg 2022; 142:1283-1288. [PMID: 34160674 DOI: 10.1007/s00402-021-04008-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 06/17/2021] [Indexed: 11/26/2022]
Abstract
INTRODUCTION Intraoperative fluoroscopy (IF) may increase accuracy of component placement when performing direct anterior approach total hip arthroplasty (THA), however, unguided IF continues to produce inconsistent results. Supplementation of IF, with a digital grid (Grid) system or digital overlay (Overlay), may increase component placement accuracy. The purpose of this study was to compare component placement accuracy following THA when IF was supplemented with the Grid or Overlay technique. MATERIALS AND METHODS Acetabular abduction and anteversion, with leg length discrepancy (LLD) and global hip offset (GHO) were retrospectively evaluated for unilateral and bilateral THA patients from 6-week post-operative radiographs. Target component placement were GHO and LLD < 10 mm, abduction 45° ± 10° and anteversion 15° ± 10° for Overlay and 17° ± 10° for Grid. Differences between the Overlay and Grid were determined by univariate analyses. RESULTS The Overlay and Grid groups included 178 patients (217 hips) and 262 patients (317 hips), respectively. Target placement with the Overlay and Grid was achieved for GHO in 98.3% and 95.7% of cases (p = 0.108), LLD in 100% and 98.4% of cases (p = 0.121), cup abduction in 98.2% and 97.4% of cases (p = 0.384), and cup anteversion in 97.7% and 71.1% of cases (p < 0.001), respectively. Surgical time was significantly longer in Overlay compared to Grid (Unilateral 77.5 ± 14.1 min and 68.8 ± 12.2; p < 0.001; Bilateral 184.6 ± 27.0 min and 165.5 ± 23.1; p < 0.001, respectively). CONCLUSION Although no difference was found between the Grid and the Overlay cohorts for LLD, GHO or abduction angle, the Overlay resulted in greater accuracy for acetabular component anteversion angle, with only a slight decrease in surgical efficiency.
Collapse
Affiliation(s)
- Tyler Thorne
- John A Burns School of Medicine, 651 Ilalo Street, Honolulu, HI, 96813, USA
| | - Scott Nishioka
- Straub Medical Center, Bone and Joint Center, 888 South King Street, Honolulu, HI, 96818, USA
| | - Samantha Andrews
- Straub Medical Center, Bone and Joint Center, 888 South King Street, Honolulu, HI, 96818, USA.
- Department of Surgery, University of Hawai'i, John A. Burns School of Medicine, 1356 Lusitana Street, Honolulu, HI, 96813, USA.
| | - Kristin Mathews
- Straub Medical Center, Bone and Joint Center, 888 South King Street, Honolulu, HI, 96818, USA
| | - Cass Nakasone
- Straub Medical Center, Bone and Joint Center, 888 South King Street, Honolulu, HI, 96818, USA
- Department of Surgery, University of Hawai'i, John A. Burns School of Medicine, 1356 Lusitana Street, Honolulu, HI, 96813, USA
| |
Collapse
|
11
|
Zinner M, Schroeder L, Pumilia CA, Lee EK, Martin G. THA with Use of Patient-Specific Resurfacing Jigs and a Novel Customized Implant Design. JBJS Rev 2022; 10:01874474-202205000-00008. [PMID: 36995410 DOI: 10.2106/jbjs.rvw.21.00078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
» Conventional total hip arthroplasty (THA) largely remains an unguided procedure dependent on the ability and experience of the surgeon. New technologies, such as patient-specific instrumentation and robotics, have shown promising results in improving implant positioning, which has the potential to improve patient outcomes. » The use of off-the-shelf (OTS) implant designs, however, limits the success of the technological advances since they are unable to recreate the native anatomy of the joint. The inability to restore femoral offset and version or the presence of implant-related leg-length discrepancies often lead to suboptimal surgical results that increase the risk of dislocation, fractures, and component wear, compromising postoperative functional outcomes and implant longevity. » A customized THA system, whereby the femoral stem is designed to restore patient anatomy, has recently been introduced. The THA system uses computed tomography (CT)-derived 3D imaging to create a custom stem, patient-specific component placement, and patient-specific instrumentation that matches the patient's native anatomy. » The purpose of this article is to provide information on the design and manufacturing process of this new THA implant, to illustrate the associated preoperative planning, and to describe the surgical technique; 3 surgical cases are presented.
Collapse
Affiliation(s)
- Matthew Zinner
- Charles E. Schmidt College of Medicine, Boca Raton, Florida
| | - Lennart Schroeder
- Department of Orthopaedics and Trauma Surgery, Musculoskeletal University Center Munich (MUM), University Hospital, LMU Munich, Munich, Germany
| | - Cyrus A Pumilia
- College of Medicine, University of Central Florida, Orlando, Florida
| | - Eric K Lee
- Department of Orthopedic Surgery, Personalized Orthopaedics of the Palm Beaches, Boynton Beach, Florida
| | - Gregory Martin
- College of Medicine, University of Central Florida, Orlando, Florida
- Department of Orthopedic Surgery, Personalized Orthopaedics of the Palm Beaches, Boynton Beach, Florida
- University of Miami Leonard M. Miller School of Medicine, Miami, Florida
| |
Collapse
|
12
|
Caus S, Reist H, Bernard C, Blankstein M, Nelms NJ. Reliability of a simple fluoroscopic image to assess leg length discrepancy during direct anterior approach total hip arthroplasty. World J Orthop 2021; 12:850-858. [PMID: 34888145 PMCID: PMC8613680 DOI: 10.5312/wjo.v12.i11.850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/28/2021] [Accepted: 09/17/2021] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Direct anterior approach (DAA) total hip arthroplasty (THA) in a supine position provides a unique opportunity to assess leg length discrepancy (LLD) intra-operatively with fluoroscopy. Reported fluoroscopic techniques are useful but are generally complicated or costly. Despite the use of multiple techniques for leg length assessment, LLD continues to be a major post-operative source of patient dissatisfaction further emphasizing the importance of near-anatomic restoration. The utility of an alternative direct measurement of LLD on an intra-operative fluoroscopic pelvic image during DAA THA has not been reported.
AIM To determine the reliability of a novel simple intra-operative measurement of LLD using a parallel line technique on a single fluoroscopic digital image of the pelvis.
METHODS One hundred and seventy-one patients who underwent DAA THA were included for analysis. Intra-operative fluoroscopic and post-operative anterior-posterior radiographs were imported to TraumaCad and calibrated for LLD measurement. LLD was measured on each image using the right-left hip differences in lesser trochanter to pelvic reference line distances. Pelvic reference points included the teardrops and ischia. Fluoroscopic LLD was compared to the gold-standard measurement of LLD measured on a post-operative radiograph.
RESULTS Mean absolute difference in teardrop referenced LLD between fluoroscopic and post-operative radiographs was 2.17 mm and based on the ischia mean absolute difference was 2.63 mm. Linear regression of fluoroscopic and post-operative radiograph LLD based on teardrop and ischia LLD found r2 values of 0.57 and 0.84, respectively. Mean absolute difference between fluoroscopic and post-operative x-ray LLD was within 5 mm in 95% of cases regardless of pelvic reference.
CONCLUSION This study demonstrates that a single fluoroscopic view obtained during DAA THA for leg length assessment is clinically useful.
Collapse
Affiliation(s)
- Sandi Caus
- The Robert Larner College of Medicine, University of Vermont, Burlington, VT 05405, United States
| | - Hailee Reist
- Department of Orthopaedics and Rehabilitation, Unviversity of Vermont, Burlington, VT 05405, United States
| | - Christopher Bernard
- The Robert Larner College of Medicine, University of Vermont, Burlington, VT 05405, United States
| | - Michael Blankstein
- Department of Orthopaedics and Rehabilitation, Unviversity of Vermont, Burlington, VT 05405, United States
| | - Nathaniel J Nelms
- Department of Orthopaedics and Rehabilitation, Unviversity of Vermont, Burlington, VT 05405, United States
| |
Collapse
|
13
|
Layson JT, Coon MS, Sharma R, Diedring B, Afsari A, Best B. Comparing Postoperative Leg Length Discrepancy and Femoral Offset Using Two Different Surgical Approaches for Hemiarthroplasty of the Hip. Spartan Med Res J 2021; 6:25096. [PMID: 34532620 PMCID: PMC8405281 DOI: 10.51894/001c.25096] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 06/15/2021] [Indexed: 11/24/2022] Open
Abstract
INTRODUCTION The direct anterior approach (DAA) and anterolateral approach (ALA) may be used for hip hemiarthroplasty (HHA) as a treatment for femoral neck fractures. The DAA often utilizes intraoperative fluoroscopy to determine leg length and offset, while the ALA traditionally utilizes an intraoperative clinical exam to determine offset and leg length. This study will evaluate two techniques: the "grid fluoroscopy [GF] technique" and the "intraoperative exam [IE] technique," each performed by one of two separate surgeons, and compare each technique's accuracy to restore leg length and femoral offset in a patient population that underwent HHA. METHODS Two investigators retrospectively reviewed charts of 208 randomly selected patients who had an HHA from either a DAA or ALA performed by two different surgeons for the treatment of femoral neck fractures. Postoperative AP pelvis radiographs were measured to determine offset and leg length compared with the non-operative extremity. Non-normal continuous variables were provided by median and interquartile range. Data were analyzed with the Mann-Whitney U test and Student's t-test. RESULTS After inclusion and exclusion criteria, data were reviewed on 173 hemiarthroplasties. The mean age was 80.3 years (± 11.2 years). Of the surgical patients, 65.9% were female, and 70.9% identified their ethnicity as white. The DAA was used in 93 patients and ALA in 80 patients. Analysis comparing the two techniques demonstrated no statistically significant differences in median leg length between GF technique (1.02 IQR -0.1, 2.0 mm) and IE technique (1.25 IQR -2.4, 1.3 mm,) (p=0.67). There was also no statistically significant difference in offset between GF technique (1.3 IQR 0.2, 2.1 mm) and IE technique (0.6 IQR -2.7 mm, 3.2 mm) (p=0.13). However, a difference was found in mean length of surgery that was statistically significant. We found that the mean length of surgery for the IE technique was 74.8 ± 24.7 minutes versus the GF technique, which was 95.1 ± 23.0 minutes, (p<0.0001). DISCUSSION There was no significant difference between leg length and offset with the use of intraoperative fluoroscopy with DAA compared to no intraoperative imaging with ALA. Our study suggests that DAA and ALA are equally effective approaches for re-establishing symmetric leg length and offset in HHA for femoral neck fractures. In this study, the ALA had a shorter surgical time compared to DAA, potentially due to the utilization of intraoperative fluoroscopy for this particular technique during the DAA.
Collapse
|
14
|
Maldonado DR, Kyin C, Walker-Santiago R, Rosinsky PJ, Shapira J, Lall AC, Domb BG. Direct anterior approach versus posterior approach in primary total hip replacement: comparison of minimum 2-year outcomes. Hip Int 2021; 31:166-173. [PMID: 31630564 DOI: 10.1177/1120700019881937] [Citation(s) in RCA: 18] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
INTRODUCTION The direct anterior approach (DAA) has gained popularity in recent years for total hip arthroplasty (THA). Several authors reported significantly better early outcomes when compared to the posterior approach (PA). Nevertheless, controversy exists regarding longer-term benefits of the DAA. METHODS Data was prospectively collected and retrospectively reviewed for primary THAs conducted between July 2008 and July 2016. Patients who underwent DAA and PA with minimum 2-year follow-up for Harris Hip Score (HHS), Forgotten Joint Score-12 (FJS-12), Veteran RAND 12 Mental (VR-12 Mental), Veteran RAND 12 Physical (VR-12 Physical), 12-Item Short Form Survey Mental (SF-12 Mental), 12-Item Short Form Survey Physical (SF-12 Physical), visual analogue scale, and patient satisfaction were included. Propensity score matching was performed on the DAA and PA cohorts (1:1) based on the following variables: age, sex, body mass index, and laterality. RESULTS 205 DAA hips were satisfactorily matched to 205 PA hips. The DAA group had higher scores at final follow-up for VR-12 Mental (p = 0.0145), VR-12 Physical (p = 0.0236), SF-12 Mental (p = 0.0393), and SF-12 Physical (p = 0.0391). The DAA and PA groups had comparable HHS (p = 0.0737) and FJS-12 (p = 0.2900). CONCLUSIONS Although the DAA and PA groups had different follow-up periods, both the DAA and PA groups reported favourable outcomes at minimum 2-year follow-up. While both groups achieved comparable scores for the majority of PROs including VAS and patient satisfaction, the DAA group achieved superior quality of life outcomes when compared with a propensity score matched group of PA surgeries.
Collapse
Affiliation(s)
| | | | | | | | | | - Ajay C Lall
- American Hip Institute, Des Plaines, IL, USA
| | | |
Collapse
|
15
|
Hip Resurfacing Utilizing the Direct Anterior Approach. Tech Orthop 2021. [DOI: 10.1097/bto.0000000000000360] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
|
16
|
Thorne TJ, Nishioka ST, Andrews SN, Mathews KA, Nakasone CK. Comparison of Component Placement Accuracy Using Two Intraoperative Fluoroscopic Grid Technologies During Direct Anterior Total Hip Arthroplasty. J Arthroplasty 2020; 35:3601-3606. [PMID: 32680756 DOI: 10.1016/j.arth.2020.06.053] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/18/2020] [Revised: 06/16/2020] [Accepted: 06/17/2020] [Indexed: 02/02/2023] Open
Abstract
BACKGROUND Intraoperative fluoroscopy is beneficial when performing total hip arthroplasty (THA) via the direct anterior approach; however, image distortion may influence component placement. A manual gridding system (MGS) and a digital gridding system (DGS) are commercially available, aimed at visually representing or correcting image distortion. Therefore, the purpose of this study is to compare component placement accuracy following direct anterior approach THA when intraoperative fluoroscopy was supplemented with MGS or DGS. METHODS A retrospective evaluation of acetabular cup abduction (ABD), leg length discrepancy (LLD) and global hip offset difference (GHO) was completed for consecutive patients from 6 week post-THA weight-bearing radiographs. The predefined target LLD and GHO was <10 mm and ABD target was 45° ± 10°. Differences between MGS and DGS were determined by independent t-tests. RESULTS The MGS (250 patients, 315 hips) and DGS (183 patients, 218 hips) achieved targeted ABD in 98.7% and 96.8% of cases, respectively, and ABD was significantly lower in the MGS group (45.14 ± 4.03° and 47.01 ± 4.39°, respectively) (P < .001). Compared to MGS, the DGS group averaged significantly higher GHO (3.64 ± 2.44 and 4.45 ± 2.73 mm, respectively, P = .002) but was not significantly different regarding LLD (2.92 ± 2.55 and 3.19 ± 2.46 mm, respectively, P = .275). No significant group difference was noted for percentage within the targeted LLD and GHO; however, 93.5% of DGS and 97.6% of MGS achieved all three (P = .031). CONCLUSION The use of both the MGS and DGS resulted in consistent component placement within the predefined target zone. Although the MGS appeared to be slightly more consistent, these differences are unlikely to be clinically significant.
Collapse
Affiliation(s)
| | | | - Samantha N Andrews
- Bone and Joint Center, Straub Medical Center, Honolulu, HI; Department of Surgery, University of Hawai'i, Honolulu, HI
| | | | - Cass K Nakasone
- Bone and Joint Center, Straub Medical Center, Honolulu, HI; Department of Surgery, University of Hawai'i, Honolulu, HI
| |
Collapse
|
17
|
Burapachaisri A, Elbuluk A, Abotsi E, Pierrepont J, Jerabek SA, Buckland AJ, Vigdorchik JM. Lewinnek Safe Zone References are Frequently Misquoted. Arthroplast Today 2020; 6:945-953. [PMID: 33299915 PMCID: PMC7701843 DOI: 10.1016/j.artd.2020.09.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/13/2020] [Revised: 09/13/2020] [Accepted: 09/27/2020] [Indexed: 12/14/2022] Open
Abstract
Background Optimal acetabular component orientation in total hip arthroplasty (THA) is a necessity in achieving a stable implant. Although there has been considerable debate in the literature concerning the safe zone, to date, there has not been any review to determine if these references are consistent with the definition applied by Lewinnek et al. in 1978. Therefore, this article aims to examine the available literature in the PubMed database to determine how often a correct reference to the safe zone as defined by Lewinnek was applied to discussions regarding THA. Methods A search for literature in the PubMed database was performed for articles from 1978 to 2019. Search criteria included terms ‘Lewinnek,’ ‘safe zone,’ and ‘total hip arthroplasty.’ Exclusions included abstract-only articles, non-English articles, articles unrelated to THA, and those lacking full content. Results A review of literature yielded 147 articles for inclusion. Overall, only 11% (17) cited the Lewinnek article correctly. Forty-five percent (66) of articles referenced measurements in the supine position, 18% (26) referenced other positions, and 37% (55) did not specify. Nineteen percent (28) reported measurements of the acetabular cup orthogonal to the anterior pelvic plane, while 73% (108) did not, and 7% (11) did not specify. Twenty-three percent (34) measured from computed tomography scans instead of other methods. Conclusions In the discussion of the safe zone regarding THA, only 11% of articles listed are consistent with the definition established by Lewinnek. This warrants further investigation into a consistent application of the term and its implications for THA implant stability and dislocation rates.
Collapse
Affiliation(s)
- Aonnicha Burapachaisri
- Division of Spine Surgery, Department of Orthopaedic Surgery, NYU Langone Orthopedic Hospital, New York, NY, USA
| | - Ameer Elbuluk
- Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
| | - Edem Abotsi
- Division of Spine Surgery, Department of Orthopaedic Surgery, NYU Langone Orthopedic Hospital, New York, NY, USA
| | - Jim Pierrepont
- Chief Innovation Officer, Corin Group, New South Wales, Australia
| | - Seth A Jerabek
- Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
| | - Aaron J Buckland
- Division of Spine Surgery, Department of Orthopaedic Surgery, NYU Langone Orthopedic Hospital, New York, NY, USA
| | - Jonathan M Vigdorchik
- Adult Reconstruction and Joint Replacement, Hospital for Special Surgery, New York, NY, USA
| |
Collapse
|
18
|
Summers S, Ocksrider J, Lezak B, Zachwieja EC, Schneiderbauer MM. Intra-operative referencing technique is non-inferior to use of fluoroscopy for acetabular component positioning in anterior hip arthroplasty. J Clin Orthop Trauma 2020; 15:71-75. [PMID: 33717920 PMCID: PMC7920138 DOI: 10.1016/j.jcot.2020.10.032] [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: 09/02/2020] [Revised: 10/05/2020] [Accepted: 10/15/2020] [Indexed: 10/23/2022] Open
Abstract
BACKGROUND Intra-operative fluoroscopy has been shown to improve the accuracy of acetabular component positioning when compared to no fluoroscopy in direct anterior approach (DAA) total hip arthroplasty (THA). Due to logistical reasons, our senior author has been performing DAA THA at one institution without the use of fluoroscopy and has created an intraoperative referencing technique to aid in acetabular component positioning. The purpose of this study is to evaluate the accuracy of acetabular component positioning using fluoroscopy when compared to an intra-operative referencing technique without fluoroscopy. METHODS A total of 214 consecutive primary DAA THA were performed by one surgeon at two institutions and were retrospectively reviewed over a 3-year period. Intra-operative fluoroscopy was used with all patients at Institution A (N = 154). At institution B (N = 60), no fluoroscopy was used, and an intra-operative referencing technique was employed to assist in placement of the acetabular component. RESULTS In the fluoroscopy group, 91% of components met our abduction target, 90% met our anteversion target, and 82.5% simultaneously met both targets. In the non-fluoroscopy group, 98% of components met our abduction target, 92% met our anteversion target, and 90% simultaneously met both targets. There was no difference between groups for placement of the component within both targets simultaneously (p = .171). CONCLUSION Use of our intra-operative referencing technique is non-inferior in placing acetabular components within a pre-defined safe zone when compared to use of intraoperative fluoroscopy. The intra-operative reference technique can be a helpful adjunct for ensuring accurate acetabular component positioning while simultaneously reducing cost and limiting radiation exposure.
Collapse
Affiliation(s)
| | | | - Bradley Lezak
- University of Miami Miller School of Medicine, Miami, FL, USA
| | | | - Michaela Maria Schneiderbauer
- University of Miami Hospital, Miami, FL, USA,Corresponding author. Department of Orthopaedic Surgery University of Miami Hospital 1400 NW 12th Ave, Miami, FL, 33136, USA.
| |
Collapse
|
19
|
Minimum 5-Year Outcomes of Robotic-assisted Primary Total Hip Arthroplasty With a Nested Comparison Against Manual Primary Total Hip Arthroplasty: A Propensity Score-Matched Study. J Am Acad Orthop Surg 2020; 28:847-856. [PMID: 32109923 DOI: 10.5435/jaaos-d-19-00328] [Citation(s) in RCA: 53] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
BACKGROUND Robotic-assisted technology has been a reliable tool in enhancing precision and accuracy of cup placement in total hip arthroplasty (THA). Still, questions remain on the clinical benefit of this technology. METHODS The purposes of the ongoing study were (1) to report on minimum 5-year outcomes in patients who underwent robotic-assisted primary THA (rTHA), (2) to compare those outcomes to a propensity score-matched manual primary THA (mTHA) control group, and (3) to compare radiographic measures between the groups regarding acetabular cup placement. Prospectively collected patient data were retrospectively reviewed for primary THA recipients during June 2008 to July 2013. Patients with minimum 5-year follow-up for Harris Hip Score, Forgotten Joint Score-12, Veterans RAND-12 Mental, Veterans RAND-12 Physical, 12-Item Short Form Survey Mental, 12-Item Short Form Survey Physical, visual analog scale, and satisfaction were included. Patient-reported outcomes, cup placement, and revision rate of the rTHA group were compared with those of a propensity score-matched mTHA control group. RESULTS Sixty-six rTHAs were matched to 66 mTHAs. The rTHA group reported significantly higher Harris Hip Score, Forgotten Joint Score-12, Veterans RAND-12 Physical, and 12-Item Short Form Survey Physical (P < 0.001, P = 0.002, P = 0.002, P = 0.001). The acetabular implant placement by rTHA had a 9 and 4.7-fold reduced risk of placement outside the Lewinnek and Callanan safe zones, respectively (relative risk, 0.11 [95% confidence interval, 0.03 to 0.46]; P = 0.002; relative risk, 0.21 [95% confidence interval, 0.01 to 0.47]; P = 0.001). In addition, rTHA recipients had lesser absolute values of leg length discrepancy and global offset (P = 0.091, P = 0.001). CONCLUSIONS Patients who received rTHA reported favorable outcomes at minimum 5-year follow-up. Furthermore, in comparison to a propensity score pair-matched mTHA group, rTHAs reported higher patient-reported outcome scores and had 89% reduced risk of acetabular implant placement beyond the Lewinnek safe zone and 79% reduced risk of placement beyond the Callanan safe zone. LEVEL OF EVIDENCE Level III.
Collapse
|
20
|
Feng JE, Anoushiravani AA, Eftekhary N, Wiznia D, Schwarzkopf R, Vigdorchik JM. Techniques for Optimizing Acetabular Component Positioning in Total Hip Arthroplasty: Defining a Patient-Specific Functional Safe Zone. JBJS Rev 2020; 7:e5. [PMID: 30817692 DOI: 10.2106/jbjs.rvw.18.00049] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Affiliation(s)
- James E Feng
- Department of Orthopaedic Surgery, NYU Langone Orthopaedic Hospital, NYU Langone Health, New York, NY
| | - Afshin A Anoushiravani
- Department of Orthopaedic Surgery, NYU Langone Orthopaedic Hospital, NYU Langone Health, New York, NY.,Department of Orthopaedics, Albany Medical Center, Albany, New York
| | - Nima Eftekhary
- Department of Orthopaedic Surgery, NYU Langone Orthopaedic Hospital, NYU Langone Health, New York, NY
| | - Daniel Wiznia
- Department of Orthopaedic Surgery, NYU Langone Orthopaedic Hospital, NYU Langone Health, New York, NY.,Department of Orthopaedics and Rehabilitation, Yale School of Medicine, New Haven, Connecticut
| | - Ran Schwarzkopf
- Department of Orthopaedic Surgery, NYU Langone Orthopaedic Hospital, NYU Langone Health, New York, NY
| | - Jonathan M Vigdorchik
- Department of Orthopaedic Surgery, NYU Langone Orthopaedic Hospital, NYU Langone Health, New York, NY
| |
Collapse
|
21
|
A new method for intraoperative assessment of leg length, sizing and placement of the components in total hip replacement. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY AND TRAUMATOLOGY 2020; 30:689-694. [PMID: 31897710 DOI: 10.1007/s00590-019-02621-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/19/2019] [Accepted: 12/19/2019] [Indexed: 10/25/2022]
Abstract
BACKGROUND Intraoperative radiograph of the pelvis is a well-established way to avoid misplacement/undersizing of the components and leg length discrepancy (LLD) in total hip replacement (THR). We describe a method for the obtainment and the evaluation of intraoperative radiographs with a sophisticated wireless radiographic system and a computerized digital tool originally used for preoperative templating. METHODS In this retrospective case-control study, 60 patients with unilateral hip osteoarthritis who underwent THR with intraoperative radiographic check with the conventional method (n = 30, control group) or the new method (AGFA flat panel DR14eG™/Orthosize™, n = 30, case group) were evaluated and compared for operation time, intraoperative changes in size/placement of the components and final radiological outcome (LLD, acetabular inclination and femoral offset) based on postoperative radiographs of the pelvis. RESULTS Mean operation time was lower in case group (85.3 min vs. 103.3 min, p value < 0.005), as well as mean absolute LLD (1.93 mm vs. 2.94 mm, p value = 0.242). There was a higher percentage of intraoperative changes in the offset of the prostheses' head (70% vs. 40%, p value = 0.018) and a significantly lower percentage of patients with LLD > 5 mm in the case group (0% vs. 27%, p value = 0.002). CONCLUSIONS This new method for the obtainment and assessment of intraoperative radiographs proved to be fast and assuring for keeping LLD below 5 mm in all patients.
Collapse
|
22
|
Does the use of intraoperative fluoroscopy improve postoperative radiographic component positioning and implant size in total hip arthroplasty utilizing a direct anterior approach? Arthroplast Today 2019; 6:94-98. [PMID: 32211483 PMCID: PMC7083709 DOI: 10.1016/j.artd.2019.11.006] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 10/30/2019] [Accepted: 11/09/2019] [Indexed: 01/17/2023] Open
Abstract
Background The direct anterior approach (DAA) for total hip arthroplasty (THA) has gained recent popularity, with 1 purported benefit being access to intraoperative fluoroscopy. However, there are limited data demonstrating improved component position with the use of intraoperative fluoroscopy. The aim of this study is to compare radiographic implant positioning on 2 consecutive cohorts of patients undergoing DAA THA performed by 1 surgeon either utilizing intraoperative fluoroscopy or not. We hypothesized that there would be no relevant radiographic differences between the cohorts. Methods Forty-two consecutive patients underwent DAA THA utilizing fluoroscopy (IFC), and 42 consecutive patients then underwent DAA THA without fluoroscopy (NFC). Using preoperative pelvis radiographs and 6-week postoperative pelvis radiographs, acetabular anteversion, inclination, femoral offset, and templated component sizes vs final intraoperatively selected sizes were recorded and compared between cohorts. Results Acetabular inclination was 45.0° for IFC and 45.6° for NFC (P = .629). Femoral offset difference preoperatively and postoperatively was 0.8 mm for IFC and 1.3 mm for NFC (P = .734). Number of hips within the so-called safe zone was 32 for IFC and 33 for NFC (P = .794). These all demonstrated no significant difference between the cohorts. However, acetabular anteversion was 13.7° for IFC and 11.2° for NFC (P = .02). Conclusions In this limited series, the routine use of intraoperative fluoroscopy did not improve implant positioning or sizing. This may be surgeon-specific or due to the result of the use of acetabular landmarks to guide placement of the components without fluoroscopy.
Collapse
|
23
|
Van de Kleut ML, Yuan X, Athwal GS, Teeter MG. Additively manufactured implant components for imaging validation studies. Proc Inst Mech Eng H 2018; 232:690-698. [PMID: 29962327 DOI: 10.1177/0954411918784086] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Radiographic imaging is the current standard for evaluating postoperative joint replacements. Prior to application, such imaging methods need to be validated to determine the lower limits of performance under ideal conditions, using either a phantom or cadaver setup. Conventionally manufactured orthopedic implants for use in such studies are not always accessible and may be cost-prohibitive to purchase. We propose the use of additively manufactured implants as a cheaper, more accessible alternative for use in radiographic imaging validation studies. Bias and repeatability were compared between conventionally manufactured and additively manufactured reverse total shoulder implant sets under a standard model-based radiostereometric analysis phantom study environment. Measurements were compared using the humeral stem or glenosphere model relative to reference bone beads, and the humeral stem relative to the glenosphere model to measure implant relative displacement. Compared to the conventionally manufactured implants, the additively manufactured implants had less bias along the internal-external rotation axis (p < 0.001), but greater bias along the abduction-adduction and flexion-extension rotation axes (p = 0.005, 0.011). Additively manufactured implants had greater repeatability along the internal-external rotation axis (p < 0.001), but worse repeatability along the medial-lateral translation axis (p = 0.001) and the abduction-adduction rotation axis (p < 0.001). Differences were on the orders of 0.01 mm and 0.5°. For the purpose of validating two-dimensional-three-dimensional radiographic imaging techniques of orthopedic implants, additively manufactured implants can be used in place of conventionally manufactured implants, assuming they are fabricated to the manufacturer's specifications. Observed differences were within the errors of the measurement technique and not clinically meaningful.
Collapse
Affiliation(s)
- Madeleine L Van de Kleut
- 1 Imaging Research Laboratories, Robarts Research Institute, Western University, London, ON, Canada.,2 Biomedical Engineering, Western University, London, ON, Canada.,3 Lawson Health Research Institute, London, ON, Canada
| | - Xunhua Yuan
- 1 Imaging Research Laboratories, Robarts Research Institute, Western University, London, ON, Canada
| | - George S Athwal
- 3 Lawson Health Research Institute, London, ON, Canada.,4 Division of Orthopaedic Surgery, London Health Sciences Center, London, ON, Canada.,5 Department of Surgery, Western University, London, ON, Canada
| | - Matthew G Teeter
- 1 Imaging Research Laboratories, Robarts Research Institute, Western University, London, ON, Canada.,3 Lawson Health Research Institute, London, ON, Canada.,4 Division of Orthopaedic Surgery, London Health Sciences Center, London, ON, Canada.,5 Department of Surgery, Western University, London, ON, Canada.,6 Department of Medical Biophysics, Western University, London, ON, Canada
| |
Collapse
|
24
|
Li W, Ye Z, Wang W, Wang K, Li L, Zhao D. Clinical effect of hyperbaric oxygen therapy in the treatment of femoral head necrosis. DER ORTHOPADE 2016; 46:440-446. [DOI: 10.1007/s00132-016-3360-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
|
25
|
Schwartz BE, Sisko ZW, Mayekar EM, Wang OJ, Gordon AC. Transitioning to the Direct Anterior Approach in Total Hip Arthroplasty: Is It Safe in the Current Health Care Climate? J Arthroplasty 2016; 31:2819-2824. [PMID: 27426222 DOI: 10.1016/j.arth.2016.05.045] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Revised: 05/04/2016] [Accepted: 05/23/2016] [Indexed: 02/08/2023] Open
Abstract
BACKGROUND The direct anterior approach for total hip arthroplasty has recently gained interest for its quicker short-term recovery despite concerns about increased complications and operative time, especially during the steep learning curve period. The primary goal of this study was to determine if the transition from a posterior approach to a direct anterior approach for total hip arthroplasty can be achieved without harming patient safety. METHODS This is a retrospective cohort single-surgeon study of consecutive primary total hip arthroplasties performed over a transition period from posterior to direct anterior (DA) approach. RESULTS A total of 412 patients (211 anterior, 201 posterior) were included with no significant demographic differences between cohorts. There were no significant differences between the DA and posterior group in 30-day readmission rates (2.84% vs 2.49%, P = .823), 90-day readmission rates (4.27 vs 5.97, P = .432), complication rate (6.16% vs 3.48%, P = .206), or revision rate (1.90% vs 2.99%, P = .535). The DA group had a significantly lower percentage of cases outside the goal abduction angle range (35°-50°) than the posterior group (9.52%, n = 20 vs 19.6%, n = 39, P < .01). The number of cases outside the goal leg length discrepancy range (±10 mm) was not significantly different (P = .846) between the DA (12.9%) and posterior (13.6%) groups. CONCLUSION This single-surgeon study demonstrates that the DA approach can be transitioned to safely with no significant increase in complications or readmissions over a high-volume experienced surgeon's first 200 cases. Furthermore, our results endorse the consistency of the DA approach during the learning curve period in regard to component positioning compared to posterior approach.
Collapse
Affiliation(s)
- Brian E Schwartz
- Department of Orthopaedic Surgery (MC 844), University of Illinois at Chicago, Chicago, Illinois
| | - Zachary W Sisko
- Department of Orthopaedic Surgery (MC 3079), University of Chicago, Chicago, Illinois
| | - Emily M Mayekar
- Department of Orthopaedic Surgery (MC 844), University of Illinois at Chicago, Chicago, Illinois
| | - Olivia J Wang
- Department of Orthopaedic Surgery (MC 844), University of Illinois at Chicago, Chicago, Illinois
| | - Alexander C Gordon
- Department of Orthopaedic Surgery (MC 844), University of Illinois at Chicago, Chicago, Illinois; Illinois Bone and Joint Institute, Morton Grove, Illinois
| |
Collapse
|
26
|
Radiographic Signs of Femoroacetabular Impingement Are Associated With Decreased Pelvic Incidence. Arthroscopy 2016; 32:806-13. [PMID: 26947741 DOI: 10.1016/j.arthro.2015.11.047] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/26/2015] [Revised: 11/23/2015] [Accepted: 11/24/2015] [Indexed: 02/02/2023]
Abstract
PURPOSE To investigate the relation between cam, acetabular version, and pelvic incidence. METHODS This was a retrospective analysis of 65 patients with symptomatic hip pain and radiographic signs of femoroacetabular impingement (FAI). Twenty-seven patients were used as a control. All patients received a CT scan of the pelvis that included the sacral endplate. Alpha angle, acetabular version, and pelvic incidence (PI) were measured on 2D CT. Patients were then assigned to 1 of 4 groups: control, cam (alpha angle > 55°, version > 15°), retroverted (alpha angle < 55°, version < 15°), or mixed (alpha angle > 55°, version < 15°). RESULTS The PI in mixed-type FAI was 46.7° ± 3.7°, which showed a statistically significant decrease from the PI of the control group, 56.1° ± 4.4° (P = .01). The PI for cam-only deformity was 50.8° ± 4.6°, and the PI for retroverted-only deformity was 51.0° ± 4.6°. Neither was statistically different from the control. CONCLUSIONS This study suggests that mixed-type FAI may develop as a response to decreased PI. This result is consistent with previous reports showing decreased PI associated with cam and retroversion deformities. Although the cause of FAI remains controversial, the potential impact of sagittal balance of the pelvis, and specifically, decreased PI, should not be ignored. LEVEL OF EVIDENCE Level IV, therapeutic case series.
Collapse
|