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Garra S, Li ZI, Triana J, Savage-Elliott I, Moore MR, Kanakamedala A, Campbell K, Alaia M, Strauss EJ, Jazrawi LM. The influence of tibial length on radiographic posterior tibial slope measurement: How much tibia do we need? Knee 2024; 49:167-175. [PMID: 38981280 DOI: 10.1016/j.knee.2024.06.005] [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: 02/14/2024] [Revised: 04/24/2024] [Accepted: 06/11/2024] [Indexed: 07/11/2024]
Abstract
PURPOSE The purpose of this study was to determine whether significant differences exist when comparing posterior tibial slope (PTS) measured using increasing lengths of the tibia to determine the anatomical axis. METHODS Patients with full-length weight-bearing tibial radiographs were retrospectively identified from 2014 to 2022 at a single institution. Patients were excluded if there was any previous history of lower extremity fracture or osteotomy. The anatomical axis of the tibia was determined using the full length of tibial radiographs, and the "reference PTS" was measured using this axis. Using the same radiograph, the PTS was measured using four different anatomical axes at standardized tibial lengths. While the center of the proximal circle remained constant at 5-cm below the tibial plateau, the center of the distal circle was drawn at four points: a) overlapping circles; b) 10-cm distal to the tibial plateau; c) 15-cm distal to the tibial plateau; d) half the length of the tibia, measured from the tibial plateau to the tibial plafond. Bivariate correlation and frequency distribution analysis (measurements >2-degrees from reference PTS) were performed between the reference PTS and PTS measured at each of the four other lengths. RESULTS A total of 154 patients (39.8 ± 17.4 years old, 44.2% male) were included in the final analysis. Measurements at each of the four tibial lengths were all significantly different from the reference PTS (p < 0.001). The correlation strength improved with increasing tibial length (overlapping: R = 0.681, 10-cm: R = 0.821, 15-cm: R = 0.937, and half-tibia: R = 0.963). The number of PTS measurements >2-degree absolute difference from the reference PTS decreased with increasing tibial length (overlapping: 40.3%, 10-cm: 24.0%, 15-cm: 26.0%, and half-tibia: 18.8%). CONCLUSION Assessment of PTS is dependent on the length of the tibia utilized to obtain the anatomical axis. Accuracy and precision of PTS measurements improved with increasing length of tibia used to determine the anatomical axis. STUDY DESIGN Case series.
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Quinn M, Lemme N, Morrissey P, Fadale P, Owens BD. An Update on Emerging Techniques and Considerations in Revision Anterior Cruciate Ligament Reconstruction. JBJS Rev 2024; 12:01874474-202407000-00007. [PMID: 39018384 DOI: 10.2106/jbjs.rvw.24.00047] [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: 07/19/2024]
Abstract
» The rate of primary anterior cruciate ligament reconstruction (ACLR) failure in at-risk populations remains unacceptably high and necessitates thorough evaluation of native alignment and concomitant injuries.» Posterior tibial slope of >12° is a substantial risk factor of ACLR failure and should be corrected through anterior closing wedge osteotomy.» Varus malalignment of >5° exacerbates stress on the ACL graft, increases ACLR failure risks, and should be considered for correction through high tibial osteotomy at the time of revision ACLR.» Injuries to the anterolateral ligamentous complex are prevalent in ACL ruptures, and high-risk patients have shown benefit from anterolateral ligament reconstruction or lateral extra-articular tenodesis in the revision setting.» Addressing posterolateral corner, collateral ligament, and meniscal injuries, during revision ACLR, is vital to mitigate increased graft forces and optimize knee stability and functional outcomes.
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Affiliation(s)
- Matthew Quinn
- Department of Orthopaedic Surgery, The Warren Alpert Medical School of Brown University, Providence, Rhode Island
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Hung YC, Chuang CA, Yao SY, Lin KY, Hung SF, Chen YJ, Chiu CH, Ho CS, Yang CP, Chan YS. Correlation between higher lateral tibial slope and inferior long term subjective outcomes following single bundle anterior cruciate ligament reconstruction. J Orthop Surg Res 2024; 19:315. [PMID: 38807173 PMCID: PMC11131331 DOI: 10.1186/s13018-024-04795-9] [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: 03/14/2024] [Accepted: 05/14/2024] [Indexed: 05/30/2024] Open
Abstract
BACKGROUND The impact of anatomical factors, such as the lateral tibial slope (LTS), on outcomes following anterior cruciate ligament (ACL) reconstruction is an area of growing interest. This study was led by the observation that patients with a higher LTS may have different recovery trajectories. HYPOTHESIS/PURPOSE The purpose of this study was to investigate the correlation between a higher LTS and long term subjective outcomes following single-bundle ACL reconstruction. STUDY DESIGN This study was designed as a retrospective cohort study. METHODS The study comprised 138 patients who underwent single-bundle ACL reconstruction. The LTS was measured on preoperative radiographs. Patient-reported outcome measures (PROMs) were collected, which included the Lysholm Knee Score, UCLA Activity Score, IKDC Score, and Tegner Activity Score, over a mean follow-up duration of 137 months. RESULTS A significant negative correlation was found between LTS and all measured PROMs (p < 0.001). The established cut-off value of LTS distinguishing between "Good" and "Fair" Lysholm scores was 8.35 degrees. Female patients have statistically significant higher LTS and lower PROMs scores than male. Patients with LTS greater than or equal to 8.35 had significantly lower PROMs, indicative of poorer functional and subjective outcomes. CONCLUSION Our findings suggest that a higher LTS is associated with inferior subjective outcomes following single-bundle ACL reconstruction in long term. The LTS cut-off value of 8.35 degrees could potentially be used as a reference in preoperative planning and patient counseling. CLINICAL RELEVANCE Understanding the relationship between LTS and ACL reconstruction outcomes could inform surgical planning and postoperative management. These findings highlight the need to consider anatomical variances, such as LTS, when assessing patient-specific risks and recovery expectations, contributing to the advancement of personalized care in sports medicine.
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Affiliation(s)
- Yu-Chieh Hung
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan
| | - Chieh-An Chuang
- Comprehensive Sports Medicine Center, Taoyuan Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan
| | - Shang-Yu Yao
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan
| | - Keng-Yi Lin
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan
| | - Shih-Feng Hung
- Department of Orthopedic Surgery, Taoyuan Hospital, Ministry of Health and Welfare, Taoyuan City, 333, Taiwan
| | - Yi-Jou Chen
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan
| | - Chih-Hao Chiu
- Comprehensive Sports Medicine Center, Taoyuan Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan
| | - Chin-Shan Ho
- Graduate Institute of Sports Science, National Taiwan Sport University, Taoyuan City, 333, Taiwan
| | - Cheng-Pang Yang
- Comprehensive Sports Medicine Center, Taoyuan Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan.
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan.
| | - Yi-Sheng Chan
- Department of Orthopedic Surgery, Keelung Chang Gung Memorial Hospital, Keelung City, 204, Taiwan.
- Comprehensive Sports Medicine Center, Taoyuan Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan.
- Department of Orthopedic Surgery, Linkou Chang Gung Memorial Hospital, Taoyuan City, 333, Taiwan.
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Conyer RT, Wang AS, Langhans MT, Krych AJ, Hevesi M, Okoroha KR, Stuart MJ, Levy BA. Association of Posterior Tibial Slope With Outcomes After Multiligamentous Knee Reconstruction for Knee Dislocation Grades 2 to 4. Orthop J Sports Med 2024; 12:23259671241249473. [PMID: 38757069 PMCID: PMC11097713 DOI: 10.1177/23259671241249473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2023] [Accepted: 11/16/2023] [Indexed: 05/18/2024] Open
Abstract
Background Patients with isolated anterior cruciate ligament (ACL) reconstruction have demonstrated an increased risk of ACL graft failure and lower patient-reported outcome (PRO) scores when increased posterior tibial slope (PTS) is present. However, there is a paucity of literature evaluating the effect of PTS on outcomes after combined bicruciate multiligamentous knee reconstruction. Purpose To determine whether differences exist for graft failure rates or PRO scores based on PTS after combined bicruciate multiligamentous knee reconstruction. Study Design Cohort study; Level of evidence, 3. Methods All patients who underwent combined ACL and posterior cruciate ligament (PCL) reconstruction between 2000 and 2020 at our institution were identified. Exclusion criteria were age <18 years, knee dislocation grade 5 injuries, concomitant osteotomy procedures, and <2 years of clinical follow-up. Demographic and outcomes data were collected from our prospectively gathered multiligamentous knee injury database. Lysholm and International Knee Documentation Committee (IKDC) scores were analyzed in relation to PTS. Outcomes were compared for patients with a PTS above and below the mean for the total cohort, PTS >12° versus <12°, positive versus negative Lachman test at follow-up, and positive versus negative posterior drawer test at follow-up. Results A total of 98 knees in 98 patients were included in the study, with a mean clinical follow-up of 5.1 years (median, 4.6 years; range, 2-16 years). The mean PTS was 8.7° (range, 0.4°-16.9°). Linear regression analysis showed no significant correlation between PTS and IKDC or Lysholm scores. Patients with a PTS above the mean of 8.7° trended toward lower IKDC (P = .08) and Lysholm (P = .06) scores. Four patients experienced ACL graft failure and 5 patients experienced PCL graft failure. There were no differences in graft failure rates or PRO scores for patients with a PTS >12°. Patients with a positive Lachman test trended toward higher PTS (9.6° vs 8.5°, P = .15). Conclusion In this series of bicruciate multiligamentous knee reconstructions at midterm follow-up, no differences in graft failures, complications, reoperations, revisions, or PRO scores based on PTS were identified. Patients with a positive Lachman test were found to have a slightly higher PTS, although this did not reach statistical significance.
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Affiliation(s)
- Ryan T. Conyer
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Allen S. Wang
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Mark T. Langhans
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Aaron J. Krych
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Mario Hevesi
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Kelechi R. Okoroha
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Michael J. Stuart
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
| | - Bruce A. Levy
- Department of Orthopedic Surgery, Mayo Clinic, Rochester, Minnesota, USA
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Mehl J, Siebenlist S. [Influence of the bony alignment on the ligaments of the knee joint]. UNFALLCHIRURGIE (HEIDELBERG, GERMANY) 2024; 127:27-34. [PMID: 37610469 DOI: 10.1007/s00113-023-01363-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Accepted: 07/28/2023] [Indexed: 08/24/2023]
Abstract
In recent years biomechanical and clinical studies have shown that the three-dimensional bony alignment of the lower extremities has a relevant influence on the ligamentous structures of the knee and consequently on the stability of the knee joint. Therefore, in the case of pathological ligamentous damage of the knee joint, a possible malalignment must always be thoroughly evaluated and if necessary, included in the treatment planning. Varus malalignment plays an important role especially with respect to the cruciate ligaments as well as the posterolateral ligamentous structures and has been identified as a significant risk factor for failure after surgical reconstruction of these ligamentous structures. Similar data have also been published for valgus malalignment particularly with respect to its negative influence on the anterior cruciate ligament and the medial capsuloligamentous complex. Alignment deviations in the sagittal plane, especially the inclination of the tibial articular surface (slope), have been extensively investigated in several recent studies. It has been demonstrated that the tibial slope has a relevant influence on the anteroposterior stability of the knee joint and hence on the cruciate ligaments. First clinical studies on the surgical correction of the axis in selected patients showed very promising results with the potential of protecting ligament reconstructions against repeated failure; however, further data especially regarding the importance and the exact indications for an additional alignment correction are necessary.
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Affiliation(s)
- Julian Mehl
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland.
| | - Sebastian Siebenlist
- Sektion Sportorthopädie, Klinikum rechts der Isar, Technische Universität München, Ismaninger Str. 22, 81675, München, Deutschland
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Sun B, Vivekanantha P, Khalik HA, Slawaska-Eng D, Kay J, Johnson J, de Sa D. Approximately half of pediatric or adolescent patients undergoing revision anterior cruciate ligament reconstruction return to the same level of sport or higher: A systematic review. Knee Surg Sports Traumatol Arthrosc 2024; 32:181-195. [PMID: 38226741 DOI: 10.1002/ksa.12030] [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: 10/05/2023] [Revised: 11/09/2023] [Accepted: 12/05/2023] [Indexed: 01/17/2024]
Abstract
PURPOSE To summarise the surgical techniques and clinical outcomes in paediatric and adolescent patients undergoing revision anterior cruciate ligament reconstruction (r-ACLR). METHODS Three databases (MEDLINE, PubMed and EMBASE) were searched from inception to 29 July 2023. The authors adhered to the PRISMA and R-AMSTAR guidelines as well as the Cochrane Handbook for Systematic Reviews of Interventions. Data on demographics, surgical details, patient-reported outcome measures (PROMs), rates of instability, rupture and return to sport (RTS) were extracted. RESULTS Eight studies comprising 706 (711 knees) patients were included (48.7% female). The mean age at r-ACLR was 17.1 years (range: 16.5-18.0). Autografts (67.5%) were more common than allografts (32.2%) in revision, with bone-patellar tendon-bone (BPTB) being the most prevalent autograft source (59.6%). Bone grafts were used in seven patients (4.8% of 146 patients). The most common femoral and tibial fixation techniques were interference screws (37.6% and 38.1%, of 244 patients, respectively). The most common tunnelling strategy was anatomic (69.1% of 236 patients), and meniscus repairs were performed in 39.7% of 256 patients. The re-rupture rate was 13.0% in 293 patients. RTS at the same level or higher was 51.6% in 219 patients. The mean (SD) Lysholm score was 88.1 (12.9) in 78 patients, the mean (SD) Tegner score was 6.0 (1.6) in 78 patients, and the mean (SD) IKDC score was 82.6 (16.0) in 126 patients. CONCLUSION R-ACLR in paediatric and adolescent patients predominantly uses BPTB autografts and interference screw femoral and tibial fixation with concomitant meniscal procedures. Rates of re-rupture and RTS at the same level or higher were 13.0% and 51.6%, respectively. Information from this review can provide orthopaedic surgeons with a comprehensive understanding of the most commonly used operative techniques and their outcomes for revision ACLR in this population. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Bryan Sun
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Prushoth Vivekanantha
- Michael G. DeGroote School of Medicine, McMaster University, Hamilton, Ontario, Canada
| | - Hassaan A Khalik
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - David Slawaska-Eng
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Jeffrey Kay
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Jansen Johnson
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
| | - Darren de Sa
- Division of Orthopaedic Surgery, Department of Surgery, McMaster University, Hamilton, Ontario, Canada
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Hinz M, Brunner M, Winkler PW, Sanchez Carbonel JF, Fritsch L, Vieider RP, Siebenlist S, Mehl J. The Posterior Tibial Slope Is Not Associated With Graft Failure and Functional Outcomes After Anatomic Primary Isolated Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2023; 51:3670-3676. [PMID: 37975492 PMCID: PMC10691292 DOI: 10.1177/03635465231209310] [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: 02/20/2023] [Accepted: 09/06/2023] [Indexed: 11/19/2023]
Abstract
BACKGROUND Biomechanical studies have shown that an increased medial posterior tibial slope (MPTS) may affect anteroposterior knee laxity and tibial shear forces, ultimately increasing the risk for graft failure after anterior cruciate ligament (ACL) reconstruction. Previous clinical studies have, however, reported inconclusive results. PURPOSE The purpose of this study was to evaluate the relationship between the MPTS and graft failure as well as functional outcomes after anatomic primary isolated ACL reconstruction using a hamstring tendon autograft. It was hypothesized that an increased MPTS would be associated with a higher ACL graft failure rate. Furthermore, a higher MPTS would negatively correlate with functional outcomes in patients without ACL graft failure. STUDY DESIGN Case-control study; Level of evidence, 3. METHODS Consecutive patients who underwent isolated primary ACL reconstruction with an anteromedial portal drilling technique between January 2011 and December 2019 were retrospectively reviewed. The MPTS was measured on preoperative lateral knee radiographs. At a minimum of 24 months postoperatively, the ACL graft failure rate and patient-reported outcome measures (PROM; International Knee Documentation Committee subjective knee form, Lysholm score, Tegner Activity Scale, visual analog scale for pain and subjective instability) were evaluated. Differences in the MPTS between patients with and without ACL graft failure as well as the frequency of graft failure between those with an MPTS <12° and those with an MPTS ≥12° were assessed for statistical significance. Binary logistic regression analysis was performed to stratify the risk of graft failure with the following variables: MPTS, age at surgery, and sex. Correlation analysis was performed to evaluate the relationship between the MPTS and PROM in patients without ACL graft failure. RESULTS In total, 326 patients were included (median follow-up, 71.0 months [IQR, 49.0-104.0 months]). There was no significant difference in the MPTS between patients with and without graft failure (10.6°± 3.2° vs 11.2°± 2.8°, respectively; P = .264). Additionally, there was no significant difference in the frequency of graft failure between patients with an MPTS <12° and those with an MPTS ≥12° (15.6% vs 16.5%, respectively; P = .835). Binary logistic regression showed that younger age at the time of surgery (odds ratio, 1.069 [95% CI, 1.031-1.109]) was associated with graft failure; sex and MPTS were not associated with graft failure. In patients without ACL graft failure, there was no significant correlation between the MPTS and PROM. CONCLUSION In patients who underwent anatomic primary isolated ACL reconstruction, an increased MPTS was not associated with a higher rate of graft failure or inferior functional outcomes. Younger age was a significant nonmodifiable risk factor for ACL graft failure.
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Affiliation(s)
- Maximilian Hinz
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Moritz Brunner
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Philipp W. Winkler
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
- Department of Orthopaedics and Traumatology, Kepler University Hospital, Linz, Austria
| | | | - Lorenz Fritsch
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Romed P. Vieider
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Sebastian Siebenlist
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
| | - Julian Mehl
- Department of Sports Orthopaedics, Technical University of Munich, Munich, Germany
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Fares A, Horteur C, Abou Al Ezz M, Hardy A, Rubens-Duval B, Karam K, Gaulin B, Pailhe R. Posterior tibial slope (PTS) ≥ 10 degrees is a risk factor for further anterior cruciate ligament (ACL) injury; BMI is not. EUROPEAN JOURNAL OF ORTHOPAEDIC SURGERY & TRAUMATOLOGY : ORTHOPEDIE TRAUMATOLOGIE 2023; 33:2091-2099. [PMID: 36201030 PMCID: PMC10275806 DOI: 10.1007/s00590-022-03406-9] [Citation(s) in RCA: 10] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Accepted: 09/28/2022] [Indexed: 06/16/2023]
Abstract
PURPOSE This case-control study aimed to assess the influence of BMI and PTS on subsequent ACL injury affecting either ACL graft or the native ACL of the contralateral knee after primary ACL reconstruction. METHODS A retrospective case-control study was performed using a cohort of patients who underwent arthroscopic ACL reconstruction between 2010 and 2020 using the same surgical procedure: Hamstring tendon autograft. The study group (group I) included all the patients (n = 94) during this period who sustained a subsequent ACL injury. The control group (group II) consisted of 94 patients randomly selected (matched Group I in terms of sex, age, and ACL graft) who did not sustain any further ACL injury. PTS was measured by two blinded surgeons on lateral knee view radiographs of the operated knee after primary ACL. BMI in kg/m2 was measured during the preoperative anesthesia consultation. Exclusion criteria were: non-true or rotated lateral knee radiographs of the operated knee post-ACLR, associated knee ligament injury requiring surgical management, iterative knee surgeries, open growth plate, and related fracture. RESULTS The mean posterior tibial slope in group I was 7.5° ± 2.9, and 7.2° ± 2.0 in group II. A PTS angle cutoff was set at 10 degrees. The rate of patients showing a PTS ≥ 10° was significantly higher in group I compared to group II (p < 0.01). Patients with PTS ≥ 10° were 5.7 times more likely to sustain a subsequent ACL injury, (OR: 5.7 95% CI[1.858-17.486]). The Average BMI in group I was 24.5 ± 3.7 kg.m-2 compared to group II which was 23.3 ± 3.0 kg.m-2. There were no significant differences in any of the four BMI categories between both groups (p value 0.289). A series of BMI cut-offs were also analyzed at 23 to30 kg/m2, and there was no significant difference between both groups. CONCLUSIONS A posterior tibial slope equal to or above 10 degrees measured on lateral knee radiographs was associated with 5.7 times higher risk of ACL graft rupture or contralateral native ACL injury; however, BMI was not.
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Affiliation(s)
- Ali Fares
- Department of Osteoarthritis and Sport Surgery, Grenoble-Alpes CHU, South Teaching Hospital, Kimberley Avenue, BP 338, 38434 Échirolles Cedex, France
| | - Clément Horteur
- Department of Osteoarthritis and Sport Surgery, Grenoble-Alpes CHU, South Teaching Hospital, Kimberley Avenue, BP 338, 38434 Échirolles Cedex, France
| | - Morad Abou Al Ezz
- Chirurgie du Sport, Clinique du Sport Paris V, Ramsay-Générale de Santé, 75005 Paris, France
| | - Alexandre Hardy
- Chirurgie du Sport, Clinique du Sport Paris V, Ramsay-Générale de Santé, 75005 Paris, France
| | - Brice Rubens-Duval
- Department of Osteoarthritis and Sport Surgery, Grenoble-Alpes CHU, South Teaching Hospital, Kimberley Avenue, BP 338, 38434 Échirolles Cedex, France
| | - Karam Karam
- Chirurgie du Sport, Clinique du Sport Paris V, Ramsay-Générale de Santé, 75005 Paris, France
| | - Benoit Gaulin
- Department of Osteoarthritis and Sport Surgery, Grenoble-Alpes CHU, South Teaching Hospital, Kimberley Avenue, BP 338, 38434 Échirolles Cedex, France
| | - Regis Pailhe
- Department of Osteoarthritis and Sport Surgery, Grenoble-Alpes CHU, South Teaching Hospital, Kimberley Avenue, BP 338, 38434 Échirolles Cedex, France
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Garra S, Li ZI, Triana J, Rao N, Alaia MJ, Strauss EJ, Gonzalez-Lomas G, Jazrawi LM. Posterior Tibial Slope in Patients Undergoing Bilateral Versus Unilateral ACL Reconstruction: MRI and Radiographic Analyses. Am J Sports Med 2023; 51:2275-2284. [PMID: 38073181 DOI: 10.1177/03635465231177086] [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] [Indexed: 12/18/2023]
Abstract
BACKGROUND An increased posterior tibial slope (PTS) is a risk factor for primary anterior cruciate ligament (ACL) tears and graft failure, but the PTS has not been well-defined in those who have experienced bilateral ACL injuries. PURPOSE The primary aim was to compare the PTS, as well as the rate of an elevated PTS (>12° on lateral radiography; >7° on magnetic resonance imaging [MRI]), between patients who have undergone bilateral ACL reconstruction (ACLR) versus unilateral ACLR. A secondary purpose was to examine whether these associations remained consistent on both plain radiography and MRI. STUDY DESIGN Cross-sectional study; Level of evidence, 3. METHODS We retrospectively identified patients who underwent primary ACLR at our institution from the years 2012 to 2020. Patients who underwent nonsimultaneous bilateral ACLR (n = 53) were matched to those who underwent unilateral ACLR (n = 53) by age, sex, and body mass index. Exclusion criteria were rotated lateral radiographs, MRI scans of inadequate quality, and concomitant ligament injuries or fractures. Those who had undergone unilateral ACLR with <5-year follow-up were further excluded. There were 3 blinded readers who measured the PTS on lateral radiographs, while the medial PTS (MPTS) and lateral PTS (LPTS) were measured on MRI scans. Bivariate regression was performed to determine the correlation between radiographic and MRI measurements. RESULTS The PTS on radiography (11.26° vs 10.13°, respectively; P = .044) and the LPTS on MRI (7.32° vs 6.08°, respectively; P = .012) in the bilateral ACLR group were significantly greater than those in the unilateral ACLR group but not the MPTS on MRI (4.55° vs 4.17°, respectively; P = .590). The percentage of patients in the bilateral group with a radiographic PTS >12° was 41.0% compared with 13.2% in the unilateral group (P = .012). The bilateral group had a significantly higher rate of an LPTS >7° compared with the unilateral group (53.8% vs 32.1%, respectively; P = .016) but not for an MPTS >7° (P = .190). On MRI, the LPTS (6.90°± 2.73°) was significantly greater than the MPTS (4.41°± 2.92°) (P < .001). There was a weak correlation between MPTS and radiographic PTS measurements (R = 0.24; P = .021), but LPTS and radiographic PTS measurements were not significantly correlated (R = 0.03; P = .810). CONCLUSION Patients who underwent bilateral ACLR had a significantly greater PTS on radiography and a significantly greater LPTS on MRI compared with those who underwent unilateral ACLR. The rate of a radiographic PTS >12° was 2.4 times greater among patients undergoing bilateral ACLR compared with those undergoing unilateral ACLR. PTS measurements on radiography demonstrated a weak to negligible correlation with PTS measurements on MRI, suggesting that future normative PTS values should be reported specific to the imaging modality.
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Affiliation(s)
- Sharif Garra
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
- Division of Orthopedic Surgery, Tel-Hashomer "Sheba" Medical Center, Sackler School of Medicine, Tel-Aviv University, Ramat Gan, Israel
| | - Zachary I Li
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
| | - Jairo Triana
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
| | - Naina Rao
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
| | - Michael J Alaia
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
| | - Eric J Strauss
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
| | - Guillem Gonzalez-Lomas
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
| | - Laith M Jazrawi
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
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Duerr R, Ormseth B, Adelstein J, Garrone A, DiBartola A, Kaeding C, Flanigan D, Siston R, Magnussen R. Elevated Posterior Tibial Slope Is Associated With Anterior Cruciate Ligament Reconstruction Failures: A Systematic Review and Meta-Analysis. Arthroscopy 2023; 39:1299-1309.e6. [PMID: 36690305 DOI: 10.1016/j.arthro.2022.12.034] [Citation(s) in RCA: 9] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/28/2022] [Revised: 12/09/2022] [Accepted: 12/30/2022] [Indexed: 01/22/2023]
Abstract
PURPOSE To evaluate the association of posterior tibial slope (PTS) with anterior cruciate ligament (ACL) reinjury following primary ACL reconstruction. METHODS PubMed, Scopus, Embase, and CINAHL databases were searched from inception through March 1, 2021, to retrieve relevant studies. Comparative studies reporting PTS measurements in a cohort of patients experiencing ACL graft failure versus patients with intact primary ACL reconstruction or studies comparing patients undergoing revision ACL reconstruction versus primary ACL reconstruction were included for analysis. A random-effects model was used to calculate the overall standardized mean difference (SMD) between groups. The following inclusion criteria were used: English language; full text available; Level I, II, or III evidence; studies in humans; and skeletally mature patients. RESULTS After we systematically screened 1,912 studies, 15 studies met the inclusion/exclusion criteria. Radiographic measurements were used in 6 studies reporting medial PTS in 411 ACL failures versus 2808 controls. Patients with ACL failure had significantly greater medial PTS compared with controls (SMD 0.50; 95% confidence interval [CI] 0.23-0.77; P < .001). Magnetic resonance imaging (MRI) was used in 9 studies reporting lateral PTS measurements in 641 patients with a failed ACL reconstruction compared with 705 controls. Seven of the MRI studies also measured medial PTS in 552 failures versus 641 controls. Patients with ACL failure had significantly greater lateral PTS on MRI (SMD 0.58; 95% CI 0.13-1.03; P = .012) and medial PTS on MRI (SMD 0.59; 95% CI 0.23-0.96; P = .001) compared with controls. CONCLUSIONS The present meta-analysis demonstrated that patients with elevated PTS on radiographs and MRI are at increased risk for ACL graft failure after primary ACL reconstruction. LEVEL OF EVIDENCE Level III, meta-analysis of Level III studies.
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Affiliation(s)
- Robert Duerr
- Jameson Crane Sports Medicine Institute, Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, Ohio, U.S.A..
| | - Benjamin Ormseth
- Jameson Crane Sports Medicine Institute, Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, Ohio, U.S.A
| | - Jeremy Adelstein
- Jameson Crane Sports Medicine Institute, Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, Ohio, U.S.A
| | - Andrew Garrone
- Jameson Crane Sports Medicine Institute, Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, Ohio, U.S.A
| | - Alex DiBartola
- Jameson Crane Sports Medicine Institute, Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, Ohio, U.S.A
| | - Christopher Kaeding
- Jameson Crane Sports Medicine Institute, Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, Ohio, U.S.A
| | - David Flanigan
- Jameson Crane Sports Medicine Institute, Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, Ohio, U.S.A
| | - Robert Siston
- Department of Mechanical and Aerospace Engineering, The Ohio State University, Columbus, Ohio, U.S.A
| | - Robert Magnussen
- Jameson Crane Sports Medicine Institute, Department of Orthopaedics, The Ohio State University Wexner Medical Center, Columbus, Ohio, U.S.A
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Laboudie P, Douiri A, Bouguennec N, Biset A, Graveleau N. Combined ACL and ALL reconstruction reduces the rate of reoperation for graft failure or secondary meniscal lesions in young athletes. Knee Surg Sports Traumatol Arthrosc 2022; 30:3488-3498. [PMID: 35364738 DOI: 10.1007/s00167-022-06956-x] [Citation(s) in RCA: 19] [Impact Index Per Article: 9.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2021] [Accepted: 03/18/2022] [Indexed: 12/25/2022]
Abstract
PURPOSE Graft failure and secondary meniscal tears are major concerns after anterior cruciate ligament (ACL) reconstruction in young athletes. The aim was to evaluate the link between ACL reconstruction with and without anterolateral ligament (ALL) reconstruction and outcomes in young patients participating in pivoting sports. METHODS This was a retrospective study of data collected prospectively. Patients less than 20 years, involved in pivoting sports and undergoing primary ACL reconstruction with a quadruple hamstring tendon (4HT) graft or 4HT graft combined with anterolateral ligament reconstruction (4HT + ALL) were included. Survival analysis was performed to identify the prognostic indicators for reoperation due to graft failure or secondary meniscal lesions. Knee laxity was assessed and patient reported outcome measures (PROMs) were collected. RESULTS A total of 203 patients (mean (± SD) age: 16.3 ± 2 years) with a mean follow-up of 4.8 ± 0.9 (range: 3.3‒6.8) years were included. There were 101 4HT and 102 4HT + ALL grafts. Graft rupture rates were 11.9% for 4HT grafts and 5.8% for 4HT + ALL grafts (n.s.). There were 9.9% secondary meniscal procedures for 4HT grafts vs. 1.9% for 4HT + ALL grafts (p = 0.02). With reoperation for graft failure or secondary meniscal lesions at final follow-up as the endpoint, survival was better in the 4HT + ALL group (91.4% vs. 77.8%, respectively; p = 0.03). Absence of ALL reconstruction (HR = 4.9 [95%CI: 1.4-17.9]; p = 0.01) and preoperative side-to-side laxity > 3 mm (HR = 3.1 [95%CI: 1.03-9.1]; p = 0.04) were independently associated with an increased rate of reoperations. Mean (± SD) side-to-side laxity was 1.3 ± 1.3 mm (range: - 2 to 5) for 4HT grafts vs. 0.9 ± 1.3 mm (range: - 6 to 4.8) for 4HT + ALL grafts (n.s.) 6 months post-surgery. The rate of return to the same sport at the same level was 42.2% for 4HT grafts vs. 52% for 4HT + ALL grafts (n.s.). There was no significant difference in subjective outcomes including PROMs between the two groups. CONCLUSION Combined ALL + ACL reconstruction reduced the rate of graft failure and secondary meniscal injury in young athletes when compared to ACL reconstruction alone. Subjective results were comparable, with a similar rate of complications. Combined reconstruction should be preferred in this young population. LEVEL OF EVIDENCE Level IV.
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Affiliation(s)
- Pierre Laboudie
- Clinique du Sport de Bordeaux-Mérignac, 4 rue George Negrevergne Merignac, 33700, Bordeaux, France.
| | - Adil Douiri
- Clinique du Sport de Bordeaux-Mérignac, 4 rue George Negrevergne Merignac, 33700, Bordeaux, France
| | - Nicolas Bouguennec
- Clinique du Sport de Bordeaux-Mérignac, 4 rue George Negrevergne Merignac, 33700, Bordeaux, France
| | - Alexandre Biset
- Clinique du Sport de Bordeaux-Mérignac, 4 rue George Negrevergne Merignac, 33700, Bordeaux, France
| | - Nicolas Graveleau
- Clinique du Sport de Bordeaux-Mérignac, 4 rue George Negrevergne Merignac, 33700, Bordeaux, France
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12
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Tabeayo E, Chan PH, Prentice HA, Dillon MT, Otarodi K, Singh A. The association between critical shoulder angle and revision following anatomic total shoulder arthroplasty: a matched case-control study. J Shoulder Elbow Surg 2022; 31:1796-1802. [PMID: 34481051 DOI: 10.1016/j.jse.2021.08.003] [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: 02/26/2021] [Revised: 07/28/2021] [Accepted: 08/03/2021] [Indexed: 02/01/2023]
Abstract
HYPOTHESIS The concept of the critical shoulder angle (CSA) was introduced in 2013, with studies showing that larger CSA is associated with rotator cuff tears (RCTs) and smaller CSA with glenohumeral osteoarthritis. We hypothesized outcomes following total shoulder arthroplasty (TSA) would differ depending on CSA. METHODS We conducted a matched case-control study using Kaiser Permanente's Shoulder Arthroplasty Registry to identify patients who underwent primary elective anatomic TSA for the diagnosis of osteoarthritis from 2009-2018. Seventy-eight adult patients who underwent revision following the primary TSA due to glenoid component failure or rotator cuff tear comprised the case group. A control group of nonrevised patients were identified from the same source population. Two controls were matched to each case by age, gender, body mass index, American Society of Anesthesiologists classification, surgeon who performed the index TSA, and post-TSA follow-up time. The relationship between revision and CSA as measured on radiographs were analyzed as a 1:2 matched-pairs case-control study with use of multiple conditional multivariable logistic regression. RESULTS Revised cases had a higher likelihood of a CSA ≥35° (odds ratio [OR] = 2.41, 95% confidence interval [CI] = 1.27-4.59). A higher likelihood of CSA ≥35° was observed for those revised for glenoid loosening (OR = 4.58, 95% CI = 1.20-17.50) and revised for rotator cuff tear (OR = 2.41, 95% CI = 1.18-4.92) compared with nonrevised controls. Every 5° increase in CSA had higher odds of overall revision (OR = 1.62, 95% CI = 1.18-2.21), glenoid loosening (OR = 2.50, 95% CI = 1.27-4.92), and rotator cuff tear (OR = 1.51, 95% CI = 1.07-2.14). CONCLUSION In a matched case-control study of primary anatomic TSA, individuals who were revised for aseptic glenoid loosening and superior cuff failure had a higher CSA compared with nonrevised individuals. These data suggest that surgeons may consider using reverse arthroplasty in cases of primary shoulder arthritis with a CSA of 35° or greater.
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Affiliation(s)
- Eloy Tabeayo
- Department of Orthopaedic Surgery, Southern California Permanente Medical Group, San Diego, CA, USA; Department of Orthopaedic Surgery, Montefiore Medical Center, Bronx, NY, USA
| | - Priscilla H Chan
- Surgical Outcomes and Analysis, Kaiser Permanente, San Diego, CA, USA
| | | | - Mark T Dillon
- Department of Orthopaedic Surgery, The Permanente Medical Group, Sacramento, CA, USA
| | - Karimdad Otarodi
- Department of Orthopaedic Surgery, Southern California Permanente Medical Group, San Diego, CA, USA
| | - Anshuman Singh
- Department of Orthopaedic Surgery, Southern California Permanente Medical Group, San Diego, CA, USA.
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13
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Kong L, Yang T, Wang Q, Ou Y, Huang H, Huang W, Zhang T, Zhang Y, Zeng X. ACLD patients exhibit additional knee kinematic asymmetries at the speed level of healthy subjects. Front Bioeng Biotechnol 2022; 10:930722. [PMID: 36082158 PMCID: PMC9445214 DOI: 10.3389/fbioe.2022.930722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2022] [Accepted: 07/21/2022] [Indexed: 11/17/2022] Open
Abstract
Anterior cruciate ligament deficiency (ACLD) patients tend to walk slowly but try to catch up with the speed level of healthy subjects daily. Exploring the effects of the walking speed level of healthy subjects on the ACLD patients’ knee kinematics is important to improving non-operative treatments and delaying the progression of posttraumatic knee osteoarthritis. This study aimed to explore whether healthy controls’ walking speed level leads to additional knee kinematic asymmetries in patients with ACLD. 27 ACLD patients and 29 healthy controls were recruited for the study. The ACLD patients walked at two levels of walking speed, including self-selected and healthy controls’ walking speed levels. A three-dimensional gait analysis system was used to collect their knee kinematic data. ACLD patients exhibited more kinematic asymmetries when walking at healthy controls’ walking speed level than at their self-selected speeds. The kinematic asymmetries included increased posterior tibial translation (4.6 mm) and anteroposterior tibial ROM (3.9 mm), abduction angle (1.5°), and distal tibial translation (3.2 mm) asymmetries (p < 0.05). Our findings are meaningful for developing non-operative treatment strategies for patients with ACLD. To get fewer knee kinematic asymmetries, self-selected walking speed could be suggested for patients with ACLD daily rather than the speed levels of healthy subjects.
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Affiliation(s)
- Lingchuang Kong
- Department of Orthopaedics, General Hospital of Southern Theater Command, Guangzhou, China
| | - Tao Yang
- Department of Orthopaedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Qing Wang
- Department of Orthopaedics, General Hospital of Southern Theater Command, Guangzhou, China
- Department of Orthopaedic Surgery, The Second Affiliated Hospital, Guangzhou Medical University, Guangzhou, China
| | - Yongliang Ou
- Department of Orthopaedics, General Hospital of Southern Theater Command, Guangzhou, China
| | - Huayang Huang
- Department of Orthopaedics, General Hospital of Southern Theater Command, Guangzhou, China
| | - Wenhan Huang
- Department of Orthopaedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
| | - Tao Zhang
- Department of Orthopaedics, General Hospital of Southern Theater Command, Guangzhou, China
- *Correspondence: Tao Zhang, ; Yu Zhang, ; Xiaolong Zeng,
| | - Yu Zhang
- Department of Orthopaedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
- *Correspondence: Tao Zhang, ; Yu Zhang, ; Xiaolong Zeng,
| | - Xiaolong Zeng
- Department of Orthopaedics, Guangdong Provincial People’s Hospital, Guangdong Academy of Medical Sciences, Guangzhou, China
- School of Medicine, South China University of Technology, Guangzhou, China
- *Correspondence: Tao Zhang, ; Yu Zhang, ; Xiaolong Zeng,
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14
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Liu Z, Jiang J, Yi Q, Teng Y, Liu X, He J, Zhang K, Wang L, Teng F, Geng B, Xia Y, Wu M. An increased posterior tibial slope is associated with a higher risk of graft failure following ACL reconstruction: a systematic review. Knee Surg Sports Traumatol Arthrosc 2022; 30:2377-2387. [PMID: 35124715 DOI: 10.1007/s00167-022-06888-6] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2021] [Accepted: 01/13/2022] [Indexed: 01/11/2023]
Abstract
PURPOSE The posterior tibial slope (PTS) is considered a risk factor for anterior cruciate ligament (ACL) injury. However, the influence of PTS on graft failure following ACL reconstruction remains relatively unknown. Therefore, this systematic review was conducted to investigate whether PTS could be a potential risk factor for graft failure after ACL reconstruction. METHODS PubMed, EMBASE, Cochrane Library, Web of Science, China National Knowledge Infrastructure Database, and Wanfang Database were comprehensively searched from inception to March 31, 2021. Observational studies reporting the associations of medial tibial plateau slope (MTPS) or lateral tibial plateau slope (LTPS) with graft failure after ACL reconstruction were evaluated. RESULTS Twenty studies involving 12 case-control studies, 4 retrospective studies and 4 cross-sectional studies including 5326 patients met the final inclusion criteria. The high heterogeneity and the characteristics of nonrandomized controlled trials limited data synthesis. Fifteen of the 20 included studies detected a significant association between increased PTS and ACL graft failure, while 5 studies concluded that increased PTS was not associated with ACL graft failure. Ten studies suggested that MTPS is associated with ACL graft failure, and six studies suggested that LTPS is associated with ACL graft failure. The mean MTPS values for nonfailure group ranged from 3.5° ± 2.5° to 14.4° ± 2.8°. For the graft failure group, MTPS ranged from 4.71° ± 2.41° to 17.2° ± 2.2°. The mean LTPS values for nonfailure group ranged from 2.9° ± 2.1° to 11.9° ± 3.0°. For the graft failure group, LTPS ranged from 5.5° ± 3.0° to 13.3° ± 3.0°. The reported PTS values that caused ACL graft failure was greater than 7.4° to 17°. CONCLUSION Based on the current clinical evidence, increased PTS is associated with a higher risk of ACL graft failure after ACL reconstruction. Despite various methods of measuring PTS have high reliability, there is still vast disagreement in the actual value of PTS. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Zhongcheng Liu
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Jin Jiang
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Qiong Yi
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Yuanjun Teng
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Xuening Liu
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Jinwen He
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Kun Zhang
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Lifu Wang
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Fei Teng
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Bin Geng
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China
| | - Yayi Xia
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China.
| | - Meng Wu
- Department of Orthopaedics, Gansu Key Laboratory of Orthopaedics, Lanzhou University Second Hospital, No. 82 Cuiyingmen, Chengguan District, Lanzhou, 730000, Gansu, China.
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15
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Dean RS, DePhillipo NN, LaPrade RF. Posterior Tibial Slope in Patients With Torn ACL Reconstruction Grafts Compared With Primary Tear or Native ACL: A Systematic Review and Meta-analysis. Orthop J Sports Med 2022; 10:23259671221079380. [PMID: 35425846 PMCID: PMC9003651 DOI: 10.1177/23259671221079380] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2021] [Accepted: 11/30/2021] [Indexed: 11/15/2022] Open
Abstract
Background: Increased posterior tibial slope (PTS) is a risk factor for anterior cruciate ligament (ACL) rupture and failure of ACL reconstruction (ACLR) grafts. Purpose: The purpose was to conduct a systematic review of literature on PTS measurements and to conduct a meta-analysis of comparable PTS measurements based on a patient’s ACL status. It was hypothesized that patients with torn ACLR grafts would have significantly larger medial and lateral PTS compared with patients with native ACLs or those who underwent primary ACLR. Study Design: Systematic review; Level of evidence, 4. Methods: A systematic review was performed using PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Included were studies that reported medial and/or lateral PTS measurements, those that reported PTS measurements based on ACL status (ie, intact ACL, primary ACL tear, failed ipsilateral ACLR, or revision ACLR), and those that reported their specific PTS measurement technique. Average PTS measurements, measurement location (medial or lateral tibial plateau) and technique, imaging modality used, and ACL status were extracted from each study. Data were pooled using DerSimonian and Laird random-effects models, and results were compared using the Altman interaction test. Results: The literature search identified 1705 studies, of which 82 (N = 12,971 patients) were included. There were 4028 patients in the intact ACL group (31%), 7405 in the primary ACLR group (57%), and 1538 in the failed ACLR group (12%). Measurements were obtained from lateral radiographs in 31 studies (38%), from magnetic resonance imaging in 47 studies (57%), and from computed tomography in 4 studies (5%). The failed ACLR group had a significantly larger lateral PTS (9.55°; 95% CI, 8.47°-10.63°) than either the primary ACL tear (7.13°; 95% CI, 6.58°-7.67°) or intact ACL (5.57°; 95% CI, 5.03°-6.11°) groups (P < .001 for both). The failed ACLR group also had a significantly larger medial PTS (9.05°; 95% CI, 7.80°-10.30°) than the primary (6.24°; 95% CI, 5.71°-6.78°) or intact ACL (6.28°; 95% CI, 5.21°-7.35°) groups (P < .001 for both). Conclusion: Both lateral and medial PTS measurements were greater in patients who had failed previous ACLR than those with a primary ACL tear or an intact native ACL. The lateral PTS of patients with primary ACL tears was greater than those with an intact native ACL.
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Affiliation(s)
- Robert S. Dean
- Beaumont Health, Royal Oak, Michigan, USA
- Twin Cities Orthopedics, Edina, Minnesota, USA
| | - Nicholas N. DePhillipo
- Twin Cities Orthopedics, Edina, Minnesota, USA
- Oslo Sports Trauma Research Center, Oslo, Norway
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16
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Dæhlin L, Inderhaug E, Strand T, Parkar AP, Solheim E. The Effect of Posterior Tibial Slope on the Risk of Revision Surgery After Anterior Cruciate Ligament Reconstruction. Am J Sports Med 2022; 50:103-110. [PMID: 34792414 PMCID: PMC8739589 DOI: 10.1177/03635465211054100] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND A significant proportion of patients undergoing anterior cruciate ligament (ACL) reconstruction (ACLR) later experience graft failure. Some studies suggest an association between a steep posterior tibial slope (PTS) and graft failure. PURPOSE To examine the PTS in a large cohort of patients about to undergo ACLR and to determine whether a steep PTS is associated with later revision surgery. STUDY DESIGN Case-control study; Level of evidence, 3. METHODS A retrospective review of a cohort undergoing isolated ACLR between 2002 and 2012 (with 8-19 years of follow-up) was conducted. Preoperative sagittal radiographs of knees in full extension were used for measurements of the PTS. There were 2 independent examiners who performed repeated measurements to assess the reliability of the method. Statistical analyses were performed to compare the PTS in the groups with and without later revision surgery. RESULTS A total of 728 patients, with a mean age of 28 years at the time of surgery, were included. Overall, 10% (n = 76) underwent revision surgery during the observation period. The group of injured knees had a significantly steeper PTS compared with the group of uninjured knees (9.5° vs 8.7°, respectively; P < .05). The mean PTS in the no revision group was 9.5° compared with 9.3° in the revision group (not significant). Dichotomized testing of revision rates related to PTS cutoff values of ≥10°, ≥12°, ≥14°, ≥16°, and ≥18° showed no association of PTS steepness (not significant) to graft failure. Patients with revision were younger than the ones without (mean age, 24 ± 8 vs 29 ± 10 years, respectively) and had a shorter time from injury to ACLR (mean, 14 ± 27 vs 24 ± 44 months, respectively) as well as a smaller graft size (8.2 vs 8.4 mm, respectively; P = .040). CONCLUSION The current study did not find any association between a steep PTS measured on lateral knee radiographs and revision ACL surgery. However, a steeper PTS was seen in the group of injured knees compared with the group of uninjured (contralateral) knees. Independent of the PTS, younger patients, those with a shorter time from injury to surgery, and those with a smaller graft size were found to undergo revision surgery more often.
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Affiliation(s)
- Lene Dæhlin
- Faculty of Medicine, University of Bergen, Bergen, Norway,Lene Dæhlin, MD, Faculty of Medicine, University of Bergen, Vilhelm Bjerknes vei 41, Bergen, 5081, Norway ()
| | - Eivind Inderhaug
- Department of Clinical Medicine, Faculty of Medicine, University of Bergen, Bergen, Norway,Department of Orthopedics, Haukeland University Hospital, Bergen, Norway
| | - Torbjørn Strand
- Department of Orthopedics, Haraldsplass Deaconess Hospital, Bergen, Norway
| | - Anagha P. Parkar
- Department of Clinical Medicine, Faculty of Medicine, University of Bergen, Bergen, Norway,Department of Radiology, Haraldsplass Deaconess Hospital, Bergen, Norway
| | - Eirik Solheim
- Department of Clinical Medicine, Faculty of Medicine, University of Bergen, Bergen, Norway,Aleris Nesttun Hospital, Bergen, Norway
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17
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Gwinner C, Janosec M, Wierer G, Wagner M, Weiler A. Graft Survivorship After Anterior Cruciate Ligament Reconstruction Based on Tibial Slope. Am J Sports Med 2021; 49:3802-3808. [PMID: 34672797 PMCID: PMC8649463 DOI: 10.1177/03635465211049234] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Increased tibial slope (TS) is believed to be a risk factor for anterior cruciate ligament (ACL) tears. Increased TS may also promote graft insufficiency after ACL reconstruction. PURPOSE To delineate the relationship between TS and single as well as multiple graft insufficiencies after ACL reconstruction. STUDY DESIGN Cohort study; Level of evidence 3. METHODS We retrospectively identified 519 patients who had sustained ACL graft insufficiency after primary or revision ACL reconstruction (1 graft insufficiency, group A; 2 graft insufficiencies, group B; and ≥3 graft insufficiencies, group C). In addition, a subgroup analysis was conducted in 63 patients who received all surgical interventions by 2 specialized high-volume, single-center ACL surgeons. TS was measured by an observer with >10 years of training using lateral knee radiographs, and intrarater reliability was performed. Multiple logistic and univariate Cox regression was used to assess the contribution of covariates (TS, age, sex, and bilateral ACL injury) on repeated graft insufficiency and graft survival. RESULTS The study included 347 patients, 119 female and 228 male, who were 24 ± 9 years of age at their first surgery (group A, n = 260; group B, n = 62; group C, n = 25). Mean TS was 9.8°± 2.7° (range, 3°-18°). TS produced the highest adjusted odds ratio (1.73) of all covariates for repeated graft insufficiency. A significant correlation was found between TS and the number of graft insufficiencies (r = 0.48; P < .0001). TS was significantly lower in group A (9.0°± 2.3°) compared with group B (12.1°± 2.5°; P < .0001) and group C (12.0°± 2.6°; P < .0001). A significant correlation was seen between the TS and age at index ACL tear (r = -0.12; P = .02) as well as time to graft insufficiency (r = -0.12; P = .02). A TS ≥12° had an odds ratio of 11.6 for repeated ACL graft insufficiency. CONCLUSION The current results indicate that patients with a markedly increased TS were at risk of early and repeated graft insufficiency after ACL reconstruction. Because the TS is rarely accounted for in primary and revision ACLR, isolated soft tissue procedures only incompletely address recurrent graft insufficiency in this subset of patients.
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Affiliation(s)
- Clemens Gwinner
- Center for Musculoskeletal Surgery,
Charité-University Medicine Berlin, Germany
- Clemens Gwinner, MD, Center
for Musculoskeletal Surgery, Charité-University Medicine Berlin, Augustenburger
Platz 1, Berlin, 13353, Germany (
)
| | - Milan Janosec
- Center for Musculoskeletal Surgery,
Charité-University Medicine Berlin, Germany
| | - Guido Wierer
- Department of Orthopaedics and
Traumatology, Paracelsus Medical University, Salzburg, Austria
- Research Unit for Orthopaedic Sports
Medicine and Injury Prevention, Private University for Health Sciences, Medical
Informatics and Technology, Hall, Austria
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Dietvorst M, Verhagen S, van der Steen MCM, Faunø P, Janssen RPA. Lateral tibiofemoral morphometry does not identify risk of re-ruptures after ACL reconstruction in children and adolescents. J Exp Orthop 2021; 8:88. [PMID: 34623550 PMCID: PMC8501174 DOI: 10.1186/s40634-021-00403-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/05/2021] [Accepted: 09/06/2021] [Indexed: 11/23/2022] Open
Affiliation(s)
- Martijn Dietvorst
- Department of Orthopaedic Surgery & Trauma, Máxima MC, Eindhoven, the Netherlands.
| | - Stéphanie Verhagen
- Department of Orthopaedic Surgery & Trauma, Máxima MC, Eindhoven, the Netherlands
| | - M C Marieke van der Steen
- Department of Orthopaedic Surgery & Trauma, Máxima MC, Eindhoven, the Netherlands.,Department of Orthopaedic Surgery & Trauma, Catharina Hospital Eindhoven, Eindhoven, the Netherlands
| | - Peter Faunø
- Department of Orthopaedic Surgery, Aarhus University Hospital, Aarhus, Denmark
| | - Rob P A Janssen
- Department of Orthopaedic Surgery & Trauma, Máxima MC, Eindhoven, the Netherlands.,Orthopaedic Biomechanics, Department of Biomedical Engineering, Eindhoven University of Technology, Eindhoven, the Netherlands.,Chair Value-Based Health Care, Department of Paramedical Sciences, Fontys University of Applied Sciences, Eindhoven, the Netherlands
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19
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Higher risk of contralateral anterior cruciate ligament (ACL) injury within 2 years after ACL reconstruction in under-18-year-old patients with steep tibial plateau slope. Knee Surg Sports Traumatol Arthrosc 2021; 29:1690-1700. [PMID: 32737527 DOI: 10.1007/s00167-020-06195-y] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/06/2020] [Accepted: 07/27/2020] [Indexed: 11/27/2022]
Abstract
PURPOSE To assess the role of Tibial Plateau Slope (TPS) as risk factor for early Anterior Cruciate Ligament (ACL) reconstruction failure and contralateral ACL injury in a population of patients with less than 18 years of age and operated on with the same surgical technique. METHODS Ninety-four consecutive patients (mean age 15.7 ± 1.5 years) with at least 2 years of follow-up, who underwent ACL reconstruction with a single-bundle plus lateral-plasty hamstring technique in the same centre were included. Subsequent ACL injuries (ipsilateral ACL revision or contralateral ACL reconstruction) were assessed within the first 2 years after surgery. Anterior, central, posterior TPS of medial compartment were measured on lateral radiographs and compared between patients with intact graft and those with a second injury. Cut-off values with sensitivity and specificity were calculated with receiver operating characteristic (ROC) analysis. Survival analysis for second ACL injuries and multivariate analysis were performed. RESULTS Eight patients (9%) had ipsilateral ACL Revision and eight patients (9%) had contralateral ACL reconstruction. Patients with contralateral injury had a higher Central TPS with respect to those without second injury (12.6° ± 2.8° vs 9.3° ± 3.7°, p = 0.042). No differences were present in patients with ipsilateral ACL revision. Sensitivity and specificity for central TPS slope ≥ 12° to detect a contralateral rupture were 63% and 75% (p = 0.0092), for Anterior TPS were 100% and 52% (p = 0.0009). Patients with TPS values exceeding these cut-offs had higher rate of contralateral ACL injuries (19%vs4%, p = 0.0420) and lower 2-year survival (p = 0.0049). Multivariate analysis identified pre-operative sport level and TPS (either anterior or central) as risk factors for contralateral injuries. CONCLUSIONS Steep tibial plateau slope ≥ 12° is associated with a higher risk of contralateral ACL injury within 2 years after ACL reconstruction in patients less than 18 years of age. However, TPS has no role in early ipsilateral re-injury after combined ACL reconstruction and lateral plasty. The clinical relevance is that both the surgeon and the patient should be aware of this higher risk and consider it in the rehabilitation phase to reduce the incidence of such injuries. LEVEL OF EVIDENCE III.
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20
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Martin RK, Ekås GR, Benth J, Kennedy N, Moatshe G, Krych AJ, Engebretsen L. Change in Posterior Tibial Slope in Skeletally Immature Patients With Anterior Cruciate Ligament Injury: A Case Series With a Mean 9 Years' Follow-up. Am J Sports Med 2021; 49:1244-1250. [PMID: 33683924 DOI: 10.1177/0363546521997097] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Increased lateral posterior tibial slope (LPTS) is associated with increased rates of anterior cruciate ligament (ACL) injury and failure of ACL reconstruction. It is unknown if ACL deficiency influences the developing proximal tibial physis and slope in skeletally immature patients through anterior tibial subluxation and abnormal force transmission. PURPOSE To assess the natural history of LPTS in skeletally immature patients with an ACL-injured knee. STUDY DESIGN Case series; Level of evidence, 4. METHODS A total of 38 participants from a previous study on nonoperative management of ACL injury in skeletally immature patients were included. During the initial study, bilateral knee magnetic resonance imaging (MRI) was performed within 1 year of enrollment and again at final follow-up. All patients were younger than 13 years at the time of enrollment, and final follow-up occurred a mean 10 years after the injury. MRI scans were retrospectively reviewed by 2 reviewers to determine bilateral LPTS for each patient and each time point. Linear mixed models were used to assess LPTS differences between knees, change over time, and association with operational status. Subgroup analyses were performed for patients who remained nonoperated throughout the study. RESULTS A total of 22 patients had ACL reconstruction before final follow-up and 16 remained nonoperated. In the entire study population, the mean LPTS was higher in the injured knee than in the contralateral knee at final follow-up by 2.0° (P < .001; 95% CI, 1.3°-2.6°). The mean LPTS increased significantly in the injured knee by 0.9° (P = .042; 95% CI, 0.03°-1.7°), while the mean LPTS decreased in the contralateral knee by 0.4° (P = .363; 95% CI, -0.8° to 0.4°). A significant difference in LPTS was also observed in the nonoperated subgroup. No significant association was observed between LPTS and operational status. CONCLUSION Lateral posterior tibial slope increased more in the ACL-injured knee than in the contralateral uninjured knee in a group of skeletally immature patients. Lateral posterior tibial slope at baseline was not associated with the need for surgical reconstruction over the study period.
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Affiliation(s)
- R Kyle Martin
- Department of Orthopedic Surgery, University of Minnesota, Minneapolis, Minnesota, USA.,Department of Orthopaedic Surgery, CentraCare, Saint Cloud, Minnesota, USA
| | - Guri R Ekås
- Department of Orthopaedic Surgery, CentraCare, Saint Cloud, Minnesota, USA.,Division of Orthopedic Surgery, Akershus University Hospital, Oslo, Norway.,Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, Oslo, Norway
| | - JūratėŠaltytė Benth
- Institute of Clinical Medicine, Campus Ahus, University of Oslo, Blindern, Norway.,Health Services Research Unit, Akershus University Hospital, Lørenskog, Norway
| | - Nicholas Kennedy
- Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Gilbert Moatshe
- Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, Oslo, Norway.,Department of Orthopaedic Surgery, Oslo University Hospital, Norway
| | - Aaron J Krych
- Department of Orthopedic Surgery and Sports Medicine, Mayo Clinic, Rochester, Minnesota, USA
| | - Lars Engebretsen
- Oslo Sports Trauma Research Center, Norwegian School of Sports Sciences, Oslo, Norway.,Department of Orthopaedic Surgery, Oslo University Hospital, Norway
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21
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Shelbourne KD, Benner RW, Jones JA, Gray T. Posterior Tibial Slope in Patients Undergoing Anterior Cruciate Ligament Reconstruction With Patellar Tendon Autograft: Analysis of Subsequent ACL Graft Tear or Contralateral ACL Tear. Am J Sports Med 2021; 49:620-625. [PMID: 33523723 DOI: 10.1177/0363546520982241] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Reports on greater posterior tibial slope (PTS) and its relationship to subsequent anterior cruciate ligament (ACL) injury show conflicting results; it has not been studied much in patients after ACL reconstruction with patellar tendon autograft (PTG). HYPOTHESIS Patients who suffered a subsequent ACL injury would have a larger PTS than patients who did not suffer a subsequent injury after primary or revision ACL reconstruction. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS Patients received primary (n = 2439) or revision (n = 324) ACL reconstruction with PTG and were followed prospectively to determine the rate of graft tear and contralateral ACL tear. The PTS was measured preoperatively on digital lateral view radiographs. Intersecting lines were drawn along the medial tibial plateau and posterior tibia; the value of the acute angle at the lines' intersection was then subtracted from 90° to obtain the PTS. This procedure was completed by a clinical assistant with an intrarater reliability of 0.89. Chi-square analysis and t tests were used to determine the differences between rate of tears and measurements between groups. A threshold of PTS ≥10° was used for analysis. RESULTS The mean follow-up time was 11.6 ± 4.0 years. After primary surgery, the mean PTS in patients with graft tears was 5.4°± 3.1° versus 4.8°± 2.9° for patients without a tear (P = .041). The mean PTS was 4.9°± 3.4° for patients with contralateral tears (not statistically significantly different than the no-tear group; P = .80). Furthermore, patients with primary reconstruction with PTS ≥10° had a statistically significantly higher rate of graft tear (9.7%) than patients with PTS ≤9° (4.8%) (P = .003), but not a higher rate of contralateral tear. Among patients undergoing revision surgery, there were no statistically significant differences between the graft tear, contralateral tear, and no-tear groups with relation to PTS ≥10°. CONCLUSION After primary ACL reconstruction, patients with PTS >10° had a higher rate of subsequent graft tear but not a higher rate of contralateral tear. With revision surgery, there was no significant association between PTS and the rate of subsequent tear. Therefore, caution should be exercised when considering more radical interventions, such as osteotomy, to prevent retear in patients with high PTS.
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Affiliation(s)
- K Donald Shelbourne
- Shelbourne Knee Center at Community East Hospital, Indianapolis, Indiana, USA
| | - Rodney W Benner
- Shelbourne Knee Center at Community East Hospital, Indianapolis, Indiana, USA
| | - Jonathan A Jones
- Shelbourne Knee Center at Community East Hospital, Indianapolis, Indiana, USA
| | - Tinker Gray
- Shelbourne Knee Center at Community East Hospital, Indianapolis, Indiana, USA
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22
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Yoon KH, Park SY, Park JY, Kim EJ, Kim SJ, Kwon YB, Kim SG. Influence of Posterior Tibial Slope on Clinical Outcomes and Survivorship After Anterior Cruciate Ligament Reconstruction Using Hamstring Autografts: A Minimum of 10-Year Follow-Up. Arthroscopy 2020; 36:2718-2727. [PMID: 32554080 DOI: 10.1016/j.arthro.2020.06.011] [Citation(s) in RCA: 25] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/13/2020] [Revised: 06/04/2020] [Accepted: 06/04/2020] [Indexed: 02/02/2023]
Abstract
PURPOSE To investigate the influence of medial and lateral posterior tibial slope (PTS) on long-term clinical outcomes and survivorship after anterior cruciate ligament (ACL) reconstruction using hamstring autografts. METHODS A total of 232 patients (mean age, 28.2 ± 8.9 years) who underwent primary ACL reconstruction from October 2002 to July 2007 were retrospectively reviewed. Patients with multiple ligament reconstruction, total meniscectomy, contralateral knee surgery before ACL reconstruction, open growth plate, and less than 10-year follow-up were excluded in the study. The medial and lateral PTS were measured from preoperative magnetic resonance imaging. Based on Li et al.'s previous study, the patients were divided into 2 groups according to their medial PTS (≤5.6° vs >5.6°) and lateral PTS (≤3.8° vs >3.8°), respectively. Clinical outcomes (clinical scores, stability tests and failure rate) were compared between the groups at the last follow-up. Furthermore, survival analysis was performed using the Kaplan-Meier method. RESULTS All clinical scores (International Knee Documentation Committee subjective, Lysholm, and Tegner activity scores) and stability tests (physical examinations and side-to-side difference in Telos stress radiographs) were insignificantly different between the 2 groups classified based on medial or lateral PTS. However, the failure rate was significantly higher in patients with medial PTS >5.6° (16.1% vs 5.1%, P = .01) or lateral PTS >3.8° (14.5% vs 4.7%; P = .01). The odds ratios of graft failure due to increased medial and lateral PTS were 3.18 (95% confidence interval, 1.22-8.28; P = .02) and 3.43 (95% confidence interval, 1.29-9.09; P = .01), respectively. In addition, the 10-year survivorship was significantly lower in patients with medial PTS >5.6° (83.9% vs 94.9%, P = .01) or lateral PTS >3.8° (85.5% vs 96.0%; P = .01). CONCLUSIONS Increased medial (>5.6°) and lateral (>3.8°) PTS were associated with higher failure rate and lower survivorship at a minimum of 10-year follow-up after primary ACL reconstruction using hamstring autografts. LEVEL OF EVIDENCE Level III, retrospective comparative trial.
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Affiliation(s)
- Kyoung Ho Yoon
- Department of Orthopaedic Surgery, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Soo Yeon Park
- Department of Physical Education, Graduate School of Education, Yongin University, Yongin-si, Gyeongki-do, Republic of Korea
| | - Jae-Young Park
- Department of Orthopaedic Surgery, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Eung Ju Kim
- Department of Orthopaedic Surgery, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Sang Jun Kim
- Department of Orthopaedic Surgery, Kyung Hee University Hospital, Seoul, Republic of Korea
| | - Yoo Beom Kwon
- Department of Orthopaedic Surgery, Kyung Hee University Hospital, Seoul, Republic of Korea.
| | - Sang-Gyun Kim
- Department of Orthopaedic Surgery, Korea University Ansan Hospital, Ansan-si, Gyeongki-do, Republic of Korea.
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23
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Park KB, Cho SD, Youm YS, Yang DG, Chung HY. Does posterior tibial slope affect the results of conservative treatment for anterior cruciate ligament tears? INTERNATIONAL ORTHOPAEDICS 2020; 44:1321-1324. [PMID: 32483677 DOI: 10.1007/s00264-020-04649-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 05/19/2020] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To evaluate the association between posterior tibial slope (PTS) and the short-term results of conservative treatment for the patients with anterior cruciate ligament (ACL) tears. METHODS Thirty-seven patients (37 knees: male 33, female 4) who were managed with the same treatment protocols for ACL tears were included. All patients applied ACL brace and underwent standardized rehabilitation protocol. Group A consisted of 14 patients with successful results after conservative management and group B consisted of 23 patients who received operative treatments due to failed conservative management. For each group, a plain radiograph was used to measure the PTS. The demographic data of patients and differences of PTS between each group were analyzed. RESULTS The mean age was 33.2 years in group A and 29.7 years in group B, respectively (p = 0.8). There was no significant difference between each group in terms of gender, body mass index, and injury mechanism. There was no significant difference between each group in the classification according to the isolated or combined injury (p = 0.83). The mean PTS was 8.3° in group A and 10.2° in group B. The mean PTS in group A was significantly lower than that in group B (p = 0.03). CONCLUSIONS The patients with successful results after conservative management had a lower mean PTS than those with failed conservative treatment (8.3° vs. 10.2°, p = 0.03). The failure of conservative treatment after ACL tear was found to be associated with increased PTS.
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Affiliation(s)
- Ki Bong Park
- Department of Orthopedic Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Sung Do Cho
- Department of Orthopedic Surgery, Dongcheondongkang Hospital, Ulsan, South Korea
| | - Yoon Seok Youm
- Department of Orthopedic Surgery, Seongnam Citizens Medical Center, 10, Sujeong-ro 171beon-gil, Sujeong-gu, Seongnam-si, Gyeonggi-do, 13290, South Korea.
| | - Doo Guen Yang
- Department of Orthopedic Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
| | - Hee Yoon Chung
- Department of Orthopedic Surgery, Ulsan University Hospital, University of Ulsan College of Medicine, Ulsan, South Korea
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24
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Fleming BC. Out of Control. Am J Sports Med 2019; 47:3311-3313. [PMID: 31774714 DOI: 10.1177/0363546519888492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
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