1
|
Shin CH, Syed AN, Swanson ME, Kushare IV, Shea KG, Ganley TJ, Baghdadi S, Cruz AI, Ellis HB, Fabricant PD, Ganley TJ, Green DW, Kerrigan A, Kirby J, Kocher M, Kushare IV, Jay Lee R, MacDonald JP, McKay SD, Parikh SN, Patel NM, Yen YM, Schmale GA, Shea KG, Justin Mistovich R. Evaluation of Tibial Slope on Radiographs in Pediatric Patients With Tibial Spine Fractures: An Age- and Sex-Matched Study. Orthop J Sports Med 2024; 12:23259671241256445. [PMID: 39100212 PMCID: PMC11295229 DOI: 10.1177/23259671241256445] [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: 02/13/2024] [Accepted: 04/02/2024] [Indexed: 08/06/2024] Open
Abstract
Background A recent study has reported that the radiographic measurement of posterior tibial slope (PTS) is larger in male pediatric patients with tibial spine fractures (TSF) than in controls. However, they found no difference in PTS between female patients and controls. Purpose (1) To identify whether PTS is larger in female pediatric patients with TSF than in female controls and (2) to validate the relationship between PTS and pediatric TSF in male patients. Study Design Cross-sectional study; Level of evidence, 3. Methods After an a priori power analysis, 84 pediatric patients with TSF (50 female patients and 34 male patients) and 84 age- and sex-matched controls were enrolled in this study. Demographic information, including sex, age, and race, was recorded. Skeletal maturity was determined based on the stage of epiphyseal union on knee radiographs. PTS was defined as the angle between a line perpendicular to the longitudinal axis of the tibia and the posterior inclination of the medial tibial plateau on standard knee lateral radiographs. Results The mean age when the TSF occurred was 11.2 ± 2.7 years for female patients and 12.9 ± 2.5 years for male patients. There was no significant difference in skeletal maturity between female patients and female controls or between male patients and male controls. The mean PTS was not significantly different between female patients (8.8°± 2.8°) and female controls (8.3°± 3.1°) (P = .366) or between male patients (9.0°± 2.8°) and male controls (9.3°± 2.6°) (P = .675). Those with a PTS >1 SD (2.9°) above the mean (8.8°) had no greater odds (1.0 [95% CI, 0.4-2.5]; P≥ .999) of having a TSF than others. Conclusion PTS was not found to be a risk factor for pediatric TSF in female or male patients in this study.
Collapse
Affiliation(s)
- Chang Ho Shin
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Akbar N. Syed
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Morgan E. Swanson
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Indranil V. Kushare
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Kevin G. Shea
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - ASTEROID;
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Theodore J. Ganley
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | | | - Soroush Baghdadi
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Aristides I. Cruz
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Henry B. Ellis
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Peter D. Fabricant
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Theodore J. Ganley
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Daniel W. Green
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Alicia Kerrigan
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Julia Kirby
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Mininder Kocher
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Indranil V. Kushare
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - R. Jay Lee
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - James P. MacDonald
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Scott D. McKay
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Shital N. Parikh
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Neeraj M. Patel
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Yi-Meng Yen
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Gregory A. Schmale
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - Kevin G. Shea
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| | - R. Justin Mistovich
- Investigation performed at the Children’s Hospital of Philadelphia, Philadelphia, Pennsylvania, USA
| |
Collapse
|
2
|
Farid AR, Pradhan P, Stearns SA, Kocher MS, Fabricant PD. Association Between Posterior Tibial Slope and ACL Injury in Pediatric Patients: A Systematic Review and Meta-analysis. Am J Sports Med 2024:3635465231199649. [PMID: 38275009 DOI: 10.1177/03635465231199649] [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] [Indexed: 01/27/2024]
Abstract
BACKGROUND The posterior tibial slope (PTS) has been proposed to be a radiographic risk factor for anterior cruciate ligament (ACL) injury in adults. However, this has not been well established in pediatric patients. PURPOSE This systematic review and meta-analysis was performed to investigate any association between PTS and ACL tears in the pediatric population. STUDY DESIGN Systematic review and meta-analysis; Level of evidence, 4. METHODS A systematic review was performed to identify studies that examined the relationship between PTS, medial tibial slope (MTS), and lateral tibial slope (LTS) and ACL tears in children and adolescents aged ≤18 years. Full-text observational studies comparing PTS, MTS, and/or LTS values between pediatric (≤18 years of age) patients with and without ACL injury were included in this analysis. Review articles and case series were excluded. The authors calculated the mean difference (MD) via a restricted maximum-likelihood estimator for tau square and a Hartung-Knapp adjustment for random-effects model. RESULTS A total of 348 articles were identified in the initial database search, yielding 10 for final inclusion and analysis. There was no statistically significant association between PTS (MD, 1.13°; 95% CI, -0.55° to 2.80°; P = .10), MTS (MD, 0.36°; 95% CI, -0.37° to 1.10°; P = .27), or LTS (MD, 1.41°; 95% CI, -0.20° to 3.02°; P = .075) and risk for ACL injury in this population. CONCLUSION The current study found that unlike what has been shown in adult populations, increased PTS may not be a significant risk factor for ACL tears in pediatric and adolescent patents. LTS was the only measured parameter that neared statistical significance, perhaps suggesting a potential role for this measurement in determining ACL risk if further research is done in this population.
Collapse
Affiliation(s)
| | - Pratik Pradhan
- Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, Massachusetts, USA
| | | | - Mininder S Kocher
- Department of Orthopaedic Surgery, Boston Children's Hospital, Boston, Massachusetts, USA
| | - Peter D Fabricant
- Department of Orthopaedic Surgery, Hospital for Special Surgery, New York, New York, USA
| |
Collapse
|
3
|
Pradhan P, Kaushal SG, Kocher MS, Kiapour AM. Development of Anatomic Risk Factors for ACL Injuries: A Comparison Between ACL-Injured Knees and Matched Controls. Am J Sports Med 2023; 51:2267-2274. [PMID: 37310177 DOI: 10.1177/03635465231177465] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
BACKGROUND Several tibiofemoral anatomic features have been repeatedly associated with increased anterior cruciate ligament (ACL) injury risk. Previous studies have highlighted age and sex differences among these anatomic risk factors, but little is known about the normal and pathologic development of these differences during skeletal maturation. PURPOSE To investigate differences in anatomic risk factors at various stages of skeletal maturation between ACL-injured knees and matched controls. STUDY DESIGN Cross-sectional study; Level of evidence, 3. METHODS After institutional review board approval, magnetic resonance imaging scans from 213 unique ACL-injured knees (age, 7-18 years, 48% female) and 239 unique asymptomatic ACL-intact knees (age, 7-18 years, 50% female) were used to measure femoral notch width, posterior slope of the lateral and medial tibial plateau, medial and lateral tibial spinal height (MTSH, LTSH), medial tibial depth, and posterior lateral meniscus-bone angle. Linear regression was performed to assess change in quantified anatomic indices with age for male and female patients in the ACL-injured cohort. Two-way analysis of variance with Holm-Sidak post hoc testing was performed to compare anatomic indices between ACL-injured knees and ACL-intact controls in each age group. RESULTS In the ACL-injured cohort, notch width, notch width index and medial tibial depth increased with age (R2 > 0.1; P < .001) in both sexes. MTSH and LTSH increased with age only in boys (R2≥ 0.09; P≤ .001), whereas meniscus-bone angle decreased with age only in girls (R2 = 0.13; P < .001). There were no other age differences in quantified anatomic indices. Patients with ACL injury consistently had a significantly higher lateral tibial slope (P < .01) and smaller LTSH (P < .001) as compared with ACL-intact controls across all age groups and sexes. When compared with age- and sex-matched ACL-intact controls, ACL-injured knees had a smaller notch width (boys, 7-18 years; girls, 7-14 years; P < .05), larger medial tibial slope (boys and girls, 15-18 years; P < .01), smaller MTSH (boys, 7-14 years; girls, 11-14 years; P < .05), and larger meniscus-bone angle (girls, 7-10 years; P = .050). CONCLUSION The consistent morphologic differences throughout skeletal growth and maturation suggest a developmental role in high-risk knee morphology. The observed high-risk knee morphology at an earlier age preliminarily suggests the potential of knee anatomy measurements in identifying those with a predisposition toward ACL injury.
Collapse
Affiliation(s)
- Pratik Pradhan
- Department of Orthopaedic Surgery and Sports Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Shankar G Kaushal
- Department of Orthopaedic Surgery and Sports Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Mininder S Kocher
- Department of Orthopaedic Surgery and Sports Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| | - Ata M Kiapour
- Department of Orthopaedic Surgery and Sports Medicine, Boston Children's Hospital, Harvard Medical School, Boston, Massachusetts, USA
| |
Collapse
|
4
|
Anterior Closing Wedge Osteotomy for Failed Anterior Cruciate Ligament Reconstruction: State of the Art. J Am Acad Orthop Surg Glob Res Rev 2022; 6:01979360-202209000-00006. [PMID: 36121766 PMCID: PMC9484815 DOI: 10.5435/jaaosglobal-d-22-00044] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Accepted: 07/19/2022] [Indexed: 11/18/2022]
Abstract
The sagittal anatomy of the proximal tibia has a bearing on the forces exerted on the cruciate ligaments. A high posterior tibial slope is now a well-known risk factor causing failure of anterior cruciate ligament (ACL) reconstructions. The posterior slope can be calculated on short or full-length radiographs, MRI scans, or three-dimensional CT scans. Reducing the slope surgically by a sagittal tibial osteotomy is biomechanically protective for the ACL graft. An anterior closing wedge osteotomy may be contemplated when the lateral tibial slope is greater than 12°, in the setting of ACL reconstruction failure(s). Careful surgical planning to calculate the correction, taking into account knee hyperextension and patella height, is critical to avoid complications. It can be done above, at, or below the tibial tuberosity level. A transtuberosity correction can be done with or without a tibial tubercle osteotomy. This complex surgery can be conducted safely by meticulous execution to protect the posterior hinge and neurovascular structures and achieving stable fixation with staples. The limited literature available justifies the usage of anterior closing wedge osteotomy in appropriately selected patients.
Collapse
|