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熊 昌, 左 云, 严 小, 王 冠, 付 豪, 姜 学. [Application of modified acetabular anteversion and inclination angles test system in patients undergoing total hip arthroplasty after lumbar fusion]. ZHONGGUO XIU FU CHONG JIAN WAI KE ZA ZHI = ZHONGGUO XIUFU CHONGJIAN WAIKE ZAZHI = CHINESE JOURNAL OF REPARATIVE AND RECONSTRUCTIVE SURGERY 2024; 38:576-582. [PMID: 38752244 PMCID: PMC11096887 DOI: 10.7507/1002-1892.202401001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 01/01/2024] [Revised: 04/12/2024] [Accepted: 04/17/2024] [Indexed: 05/18/2024]
Abstract
Objective To investigate the accuracy and effectiveness of acetabular cup placement in total hip arthroplasty (THA) after lumbar fusion applying of modified acetabular anteversion and inclination angles test system. Methods A clinical data of 45 patients undergoing THA for osteoarthritis between January 2018 and June 2023 was retrospectively analyzed. All patients had previously received lumbar fusion. The modified acetabular anteversion and inclination angle test system was used in 26 cases (observation group) and not used in 19 cases (control group) during THA. There was no significant difference in baseline data such as gender, age, body mass index, operative side, number of lumbar fusion segments, and preoperative Harris score between the two groups ( P>0.05). The position of acetabular prosthesis, hip function (Harris score), and incidence of complications were compared between the two groups. Results In the observation group, all acetabular cups were in the safe zone (anteversion angle, 25°-30°) during operation, and 1 acetabular cup (3.85%) was not in the safe zone after operation. In the control group, 9 acetabular cups (47.37%) were not in the safe zone. The postoperative difference between the two groups was significant ( P<0.05). There was no significant difference between intra- and post-operative acetabular inclination angles in the observation group ( P>0.05), and the postoperative acetabular inclination angle was significantly smaller in the observation group than in the control group ( P<0.05). All incisions healed by first intention and no infection occurred. All patients were followed up 6 months. There was no significant difference in Harris score between the two groups at different time point ( P>0.05), and there were significant differences between different time points in the two groups ( P<0.05). No joint dislocation occurred in the observation group during follow-up, while dislocation occurred in 2 cases and femoral impingement syndrome occurred in 1 case of the control group. There was no significant difference in the incidence of complications between the two groups ( P>0.05). Conclusion For THA patients with lumbar fusion, the ideal placement angle of the acetabular cup can be obtained by using the modified acetabular anteversion and inclination angles test system during operation.
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Affiliation(s)
- 昌军 熊
- 武汉中西医结合骨科医院骨关节科(武汉 430079)Department of Joint Surgery, Wuhan Integrated Traditional Chinese and Western Medicine Hospital, Wuhan Hubei, 430079, P. R. China
- 武汉体育学院附属医院骨关节科 (武汉 430079)Department of Joint Surgery, Wuhan Sports University Affiliated Hospital, Wuhan Hubei, 430079, P. R. China
| | - 云周 左
- 武汉中西医结合骨科医院骨关节科(武汉 430079)Department of Joint Surgery, Wuhan Integrated Traditional Chinese and Western Medicine Hospital, Wuhan Hubei, 430079, P. R. China
- 武汉体育学院附属医院骨关节科 (武汉 430079)Department of Joint Surgery, Wuhan Sports University Affiliated Hospital, Wuhan Hubei, 430079, P. R. China
| | - 小康 严
- 武汉中西医结合骨科医院骨关节科(武汉 430079)Department of Joint Surgery, Wuhan Integrated Traditional Chinese and Western Medicine Hospital, Wuhan Hubei, 430079, P. R. China
- 武汉体育学院附属医院骨关节科 (武汉 430079)Department of Joint Surgery, Wuhan Sports University Affiliated Hospital, Wuhan Hubei, 430079, P. R. China
| | - 冠 王
- 武汉中西医结合骨科医院骨关节科(武汉 430079)Department of Joint Surgery, Wuhan Integrated Traditional Chinese and Western Medicine Hospital, Wuhan Hubei, 430079, P. R. China
- 武汉体育学院附属医院骨关节科 (武汉 430079)Department of Joint Surgery, Wuhan Sports University Affiliated Hospital, Wuhan Hubei, 430079, P. R. China
| | - 豪 付
- 武汉中西医结合骨科医院骨关节科(武汉 430079)Department of Joint Surgery, Wuhan Integrated Traditional Chinese and Western Medicine Hospital, Wuhan Hubei, 430079, P. R. China
- 武汉体育学院附属医院骨关节科 (武汉 430079)Department of Joint Surgery, Wuhan Sports University Affiliated Hospital, Wuhan Hubei, 430079, P. R. China
| | - 学明 姜
- 武汉中西医结合骨科医院骨关节科(武汉 430079)Department of Joint Surgery, Wuhan Integrated Traditional Chinese and Western Medicine Hospital, Wuhan Hubei, 430079, P. R. China
- 武汉体育学院附属医院骨关节科 (武汉 430079)Department of Joint Surgery, Wuhan Sports University Affiliated Hospital, Wuhan Hubei, 430079, P. R. China
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Acuña AJ, Forlenza EM, Serino J, Terhune EB, Della Valle CJ. Body Mass Index Does Not Drive the Risk for Early Postoperative Instability After Total Hip Arthroplasty: A Matched Cohort Analysis. J Arthroplasty 2024:S0883-5403(24)00239-0. [PMID: 38499164 DOI: 10.1016/j.arth.2024.03.023] [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: 09/03/2023] [Revised: 03/07/2024] [Accepted: 03/09/2024] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND Instability remains the leading cause of revision following total hip arthroplasty (THA). The objective of the present investigation was to determine whether an elevated body mass index (BMI) is associated with an increased risk of instability after primary THA. METHODS An administrative claims database was queried for patients undergoing elective, primary THA for osteoarthritis between 2010 and 2022. Patients who underwent THA for a femoral neck fracture were excluded. Patients who had an elevated BMI were grouped into the following cohorts: 25 to 29.9 (n = 2,313), 30 to 34.9 (n = 2,230), 35 to 39.9 (n = 1,852), 40 to 44.9 (n = 1,450), 45 to 49.9 (n = 752), and 50 to 59.9 (n = 334). Patients were matched 1:1 based on age, sex, and Elixhauser Comorbidity Index, as well as a history of spinal fusion, neurodegenerative disorders, and alcohol abuse, to controls with a normal BMI (20 to 24.9). A multivariate logistic regression controlling for age, sex, Elixhauser Comorbidity Index, and additional risk factors for dislocation was used to evaluate dislocation rates at 30 days, 90 days, 6 months, 1 year, and 2 years. Rates of revision for instability were similarly compared at 1 year and 2 years postoperatively. RESULTS No significant differences in dislocation rate were observed between control patients and each of the evaluated BMI classes at all evaluated postoperative intervals (all P values > .05). Similarly, the risk of revision for instability was comparable between the normal weight cohort and each evaluated BMI class at 1 year and 2 years postoperatively (all P values > .05). CONCLUSIONS Controlling for comorbidities and known risk factors for instability, the present analysis demonstrated no difference in rates of dislocation or revision for instability between normal-weight patients and those in higher BMI classes.
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Affiliation(s)
- Alexander J Acuña
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Enrico M Forlenza
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Joseph Serino
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - E Bailey Terhune
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois
| | - Craig J Della Valle
- Department of Orthopedic Surgery, Rush University Medical Center, Chicago, Illinois
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Verhaegen JCF, Wei R, Kim P, Beaulé PE, Corten K, Grammatopoulos G. The Safety and Efficacy of the Anterior Approach Total Hip Arthroplasty as per Body Mass Index. J Arthroplasty 2023; 38:314-322.e1. [PMID: 35987493 DOI: 10.1016/j.arth.2022.08.021] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Revised: 08/09/2022] [Accepted: 08/11/2022] [Indexed: 02/03/2023] Open
Abstract
BACKGROUND Obesity is associated with component malpositioning and increased revision risk after total hip arthroplasty (THA). With anterior approaches (AAs) becoming increasingly popular, the goal of this study was to assess whether clinical outcome post-AA-THA is affected by body mass index (BMI). METHODS This multicenter, multisurgeon, consecutive case series used a prospective database of 1,784 AA-THAs (1,597 patients) through bikini (n = 1,172) or standard (n = 612) incisions. Mean age was 63 years (range, 20-94 years) and there were 57.5% women, who had a mean follow-up of 2.7 years (range, 2.0-4.1 years). Patients were classified into the following BMI groups: normal (BMI < 25.0; n = 572); overweight (BMI: 25.0-29.9; n = 739); obese (BMI: 30.0-34.9; n = 330); and severely obese (BMI ≥ 35.0; n = 143). Outcomes evaluated included hip reconstruction (inclination/anteversion and leg-length, complications, and revision rates) and patient-reported outcomes including Oxford Hip Scores (OHS). RESULTS Mean postoperative leg-length difference was 2.0 mm (range: -17.5 to 39.0) with a mean cup inclination of 34.8° (range, 14.0-58.0°) and anteversion of 20.3° (range, 8.0-38.6°). Radiographic measurements were similar between BMI groups (P = .1-.7). Complication and revision rates were 2.5% and 1.7%, respectively. The most common complications were fracture (0.7%), periprosthetic joint infection (PJI) (0.5%), and dislocation (0.5%). There was no difference in dislocation (P = .885) or fracture rates (P = .588) between BMI groups. There was a higher rate of wound complications (1.8%; P = .053) and PJIs (2.1%; P = .029) among obese and severely obese patients. Wound complications were less common among obese patients with the 'bikini' incision (odds ratio 2.7). Preoperative OHS was worse among the severely obese (P < .001), which showed similar improvements (Change in OHS; P = .144). CONCLUSION AA-THA is a credible option for obese patients, with low dislocation or fracture risk and excellent ability to reconstruct the hip, leading to comparable functional improvements among BMI groups. Obese patients have a higher risk of PJIs. Bikini incision for AA-THA can help minimize the risk of wound complications.
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Affiliation(s)
- Jeroen C F Verhaegen
- Division of Orthopaedic Surgery, The Ottawa Hospital, Critical Care Wing, Ottawa, Ontario, Canada; Department of Orthopaedics and Traumatology, Ziekenhuis Oost-Limburg, Genk, Belgium; University of Antwerp, Antwerp, Belgium
| | - Roger Wei
- Division of Orthopaedic Surgery, The Ottawa Hospital, Critical Care Wing, Ottawa, Ontario, Canada
| | - Paul Kim
- Division of Orthopaedic Surgery, The Ottawa Hospital, Critical Care Wing, Ottawa, Ontario, Canada
| | - Paul E Beaulé
- Division of Orthopaedic Surgery, The Ottawa Hospital, Critical Care Wing, Ottawa, Ontario, Canada
| | - Kristoff Corten
- Department of Orthopaedics and Traumatology, Ziekenhuis Oost-Limburg, Genk, Belgium; University of Hasselt, Hasselt, Belgium
| | - George Grammatopoulos
- Division of Orthopaedic Surgery, The Ottawa Hospital, Critical Care Wing, Ottawa, Ontario, Canada
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ÇATALTEPE A. The length of distal skin incision of the postero-lateral approach affects the cup inclination during the total hip arthroplasty. JOURNAL OF HEALTH SCIENCES AND MEDICINE 2022. [DOI: 10.32322/jhsm.1071852] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Aim: The primary aim of the study was to determine whether the length of the distal skin incision of the posterolateral approach affects the cup inclination during total hip arthroplasty (THA).
Material and Method: In this study, a cohort of 71 consecutive patients who performed between January 2017 and December 2021 with unilateral THA using a posterolateral approach was retrospectively assessed. Two groups were formed according to acetabular cup inclination with normal anteversion angle. There were 56 hips in the inside group and 17 in the outside group. A curvilinear skin incision of around 13 cm was performed. Component position evaluation was carried out through a radiographic assessment of the acetabular component on an anteroposterior pelvis radiograph. The rate of an outlier was compared between groups according to the safe zone defined as 30° to 50° of inclination and 5° to 25° of anteversion, which was described by Lewinnek et al.
Results: No significant difference in the average total incision length was found between the two groups (p=0.207). While the average distal incision length was 7.91±0.62 cm (range, 6.8-9 cm) in the inside group and 6.37±0.21 cm (range, 6-6.7 cm) in the outside group. According to ROC analysis, a patient with ≤6.7 cm of the distal length of incision (DLI) was 5.71 times more likely to be outside than a patient with >6.7 cm of DLI. Seventeen hips (23.3%) were found outside the safe range. Substantial differences were observed regarding radiographic cup inclination between the two groups (p=0.0001). In the inside group, the average cup inclination was 44.11°±3.44° (range, 37°-50°), whereas, in the outside group, it was 55.41°±2.5° (range, 52°-59°). However, there were no significant differences in the average radiographic cup anteversion between the two groups (p=0.960). Although 11 of 17 (64.5%) patients were classified as obese (BMI ≥30) in the outside group experienced higher rates of inaccurate cup orientation, logistic regression analysis showed that the individual effects of obesity on the occurrence of the inaccurate cup position were not observed (p=0.884). One posterior hip dislocation occurred after one month postoperative in the outside group.
Conclusions: Longer distal portion of the skin incision of the posterolateral approach should be performed to achieve optimal operative inclination angles of the acetabular cup during THA. The surgeon must have no hesitation in extending the distal skin incision when adopting the posterolateral approach.
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Muellner M, Becker L, Wang Z, Hu Z, Hardt S, Pumberger M, Haffer H. Spinopelvic mobility is influenced by pre-existing contralateral hip arthroplasty: a matched-pair analysis in patients undergoing hip replacement. J Orthop Surg Res 2022; 17:64. [PMID: 35109897 PMCID: PMC8812232 DOI: 10.1186/s13018-022-02945-5] [Citation(s) in RCA: 2] [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: 11/04/2021] [Accepted: 01/21/2022] [Indexed: 01/06/2023] Open
Abstract
Background Spinopelvic mobility gained increased attention as a contributing factor for total hip arthroplasty (THA) instability. However, it is unknown how a pre-existing THA affects spinopelvic mobility. Therefore, a propensity-score-matched analysis of primary THA patients comparing the individual segments of spinopelvic mobility between patients with pre-existing THA and no-existing THA was conducted. Consequently, the study aimed to discuss (1) whether patients with a pre-existing THA have altered spinopelvic mobility compared to the control group and (2) if spinopelvic mobility changes after THA. Methods A prospective observational study enrolled 197 elective primary THA patients, including N = 44 patients with a pre-existing unilateral THA. Using propensity-score matching adapted for age, sex, and BMI, N = 44 patients without a pre-existing THA were determined. The patients received stereoradiography in standing and relaxed sitting position pre- and postoperatively. Assessed parameters were lumbar lordosis (LL), pelvic tilt (PT), and pelvic femoral angle (PFA). Key parameters of the spinopelvic mobility were defined as lumbar flexibility (∆LL = LLstanding − LLsitting), pelvic mobility (∆PT = PTstanding − PTsitting) and hip motion (∆PFA = PFAstanding − PFAsitting). Pelvic mobility was classified as stiff (∆PT < 10°), normal (∆PT ≥ 10°–30°) and hypermobile (∆PT > 30°). The Wilcoxon rank sum test for dependent samples was used. Results Pelvic mobility was significantly increased in the pre-existing THA group (∆PT 18.2° ± 10.7) compared to the control group (∆PT 7.7° ± 8.0; p < 0.001) preoperatively and postoperatively (pre-existing: 22.2° ± 9.3; control: 17.0° ± 9.2, p = 0.022). Lumbar flexibility was significantly increased in the pre-existing THA group (∆LL 21.6° ± 11.8) compared to the control group (∆LL 12.4° ± 7.8; p < 0.001) preoperatively and postoperatively (pre-existing: 25.7° ± 11.0; control: 19.0° ± 10.2; p = 0.011). The contribution of stiff pelvic mobility is distinctly smaller in the pre-existing THA group (25%) than in the control group (75%) preoperatively. Conclusions Pre-existing THA is associated with significantly enhanced pelvic mobility and lumbar flexibility. Accordingly, we identified the patients without a pre-existing THA as risk candidates with higher likelihood for pathological spinopelvic mobility. This information will assist arthroplasty surgeons in deciding which THA candidates require preoperative radiological screening for pathologic spinopelvic mobility. Level of evidence Level II prospective cohort study. Supplementary Information The online version contains supplementary material available at 10.1186/s13018-022-02945-5.
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Affiliation(s)
- Maximilian Muellner
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany, Berlin, Germany
| | - Luis Becker
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany, Berlin, Germany
| | - Zhen Wang
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany, Berlin, Germany
| | - Zhouyang Hu
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany, Berlin, Germany
| | - Sebastian Hardt
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany, Berlin, Germany
| | - Matthias Pumberger
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany, Berlin, Germany
| | - Henryk Haffer
- Center for Musculoskeletal Surgery, Charité - Universitätsmedizin Berlin, corporate member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, Berlin, Germany, Berlin, Germany.
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