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Lodhia P, Nazari G, Bryant D, Getgood A, McCormack R, Getgood AM, Bryant DM, Litchfield R, Willits K, Birmingham T, Hewison C, Firth AD, Wanlin S, Pinto R, Martindale A, O’Neill L, Jennings M, Daniluk M, McCormack RG, Boyer D, Zomar M, Moon K, Moon R, Fan B, Mohan B, Payne K, Heard M, Buchko GM, Hiemstra LA, Kerslake S, Tynedal J, MacDonald PB, Stranges G, Mcrae S, Gullett L, Brown H, Legary A, Longo A, Christian M, Ferguson C, Rezansoff A, Mohtadi N, Barber R, Chan D, Campbell C, Garven A, Pulsifer K, Mayer M, Peterson D, Simunovic N, Duong A, Robinson D, Levy D, Skelly M, Shanmugaraj A, Bardana D, Howells F, Tough M, Spalding T, Thompson P, Metcalfe A, Asplin L, Dube A, Clarkson L, Brown J, Bolsover A, Bradshaw C, Belgrove L, Milan F, Turner S, Verdugo S, Lowe J, Dunne D, McGowan K, Suddens CM, Verdonk PC, Declerq G, Vuylsteke K, Van Haver M. Performance of 5-Strand Hamstring Autograft Anterior Cruciate Ligament Reconstruction in the STABILITY Study: A Subgroup Analysis. Am J Sports Med 2022; 50:3502-3509. [PMID: 36260487 PMCID: PMC9630854 DOI: 10.1177/03635465221128581] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Anterior cruciate ligament (ACL) reconstructions (ACLRs) with graft diameters <8mm have been shown to have higher revision rates. The 5-strand (5S) hamstring autograft configuration is a proposed option to increase graft diameter. PURPOSE To investigate the differences in clinical outcomes between 4-strand (4S) and 5S hamstring autografts for ACLR in patients who underwent ACLR alone or concomitantly with a lateral extra-articular tenodesis (LET) procedure. STUDY DESIGN Cohort study; Level of evidence, 2. METHODS Data from the STABILITY study were analyzed to compare a subgroup of patients undergoing ACLR alone or with a concomitant LET procedure (ACLR + LET) with a minimum graft diameter of 8mm that had either a 4S or 5S hamstring autograft configuration. The primary outcome was clinical failure, a composite of rotatory laxity and/or graft failure. The secondary outcome measures consisted of 2 patient-reported outcome scores (PROs)-namely, the ACL Quality of Life Questionnaire (ACL-QoL) and the International Knee Documentation Committee (IKDC) score at 24 months postoperatively. RESULTS Of the 618 patients randomized in the STABILITY study, 399 (228 male; 57%) fit the inclusion criteria for this study. Of these, 191 and 208 patients underwent 4S and 5S configurations of hamstring ACLR, respectively, with a minimum graft diameter of 8mm. Both groups had similar characteristics other than differences in anthropometric factors-namely, sex, height, and weight, and Beighton scores. The primary outcomes revealed no difference between the 2 groups in rotatory stability (odds ratio [OR], 1.19; 95% CI, 0.77-1.84; P = .42) or graft failure (OR, 1.13; 95% CI, 0.51-2.50; P = .76). There was no significant difference between the groups in Lachman (P = .46) and pivot-shift (P = .53) test results at 24 months postoperatively. The secondary outcomes revealed no differences in the ACL-QoL (P = .67) and IKDC (P = .83) scores between the 2 subgroups. CONCLUSION At the 24-month follow-up, there were no significant differences in clinical failure rates and PROs in an analysis of patients with 4S and 5S hamstring autografts of ≥8mm diameter for ACLR or ACLR + LET. The 5S hamstring graft configuration is a viable option to produce larger-diameter ACL grafts.
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Affiliation(s)
- Parth Lodhia
- Parth Lodhia, MD, University of British Columbia, 403-233
Nelson’s Crescent, New Westminster, V3L 0E4, Canada (
)
| | - Goris Nazari
- Canadian Institutes of Health Research, Ottawa,
Ontario, Canada
| | - Dianne Bryant
- The University of Western Ontario, London,
Ontario, Canada
| | - Alan Getgood
- Western Ontario University, London, Ontario,
Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Michal Daniluk
- London Health Sciences Centre, Western
University, Fowler Kennedy Sport Medicine Clinic, London, Canada
| | | | | | | | | | | | | | | | - Kyrsten Payne
- Fraser Orthopaedic Institute, New Westminster,
Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Michelle Mayer
- Sport Medicine Centre, University of Calgary,
Calgary, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Mieke Van Haver
- Antwerp Orthopaedic Center, Ghent,
Belgium,Investigation performed at University of
British Columbia, Vancouver, BC, Canada
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2
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Marmura H, Firth A, Batty L, Bryant DM, Getgood AMJ, Bryant D, Litchfield R, Willits K, Birmingham T, Hewison C, Wanlin S, Firth A, Pinto R, Martindale A, O’Neill L, Jennings M, Daniluk M, Boyer D, McCormack B, Zomar M, Moon K, Moon R, Fan B, Mohan B, Heard M, Buchko GM, Hiemstra LA, Kerslake S, Tynedal J, MacDonald P, Stranges G, Mcrae S, Gullett L, Brown H, Legary A, Longo A, Christian M, Ferguson C, Rezansoff A, Mohtadi N, Barber R, Chan D, Campbell C, Garven A, Pulsifer K, Mayer M, Peterson D, Simunovic N, Duong A, Robinson D, Levy D, Skelly M, Shanmugaraj A, Bardana D, Howells F, Tough M, Spalding T, Thompson P, Metcalfe A, Asplin L, Dube A, Clarkson L, Brown J, Bolsover A, Bradshaw C, Belgrove L, Millan F, Turner S, Verdugo S, Lowe J, Dunne D, McGowan K, Suddens CM, Verdonk P, Declerq G, Vuylsteke K, Van Haver M. Meniscal repair at the time of primary ACLR does not negatively influence short term knee stability, graft rupture rates, or patient-reported outcome measures: the STABILITY experience. Knee Surg Sports Traumatol Arthrosc 2022; 30:3689-3699. [PMID: 35451638 DOI: 10.1007/s00167-022-06962-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2021] [Accepted: 03/24/2022] [Indexed: 11/29/2022]
Abstract
PURPOSE To assess how meniscal repair and excision impact short term patient-reported outcome measures (PROMs), knee stability, and early graft rupture rates following primary hamstring anterior cruciate ligament reconstruction (ACLR) with or without lateral extra-articular tenodesis (LET) in a group of young active patients where meniscal repair is commonly advocated. METHODS Six hundred and eighteen patients under 25 years of age at high-risk of graft failure following ACLR were recruited to the Stability 1 study. Multivariable regression models were developed to identify statistically and clinically significant surgical and demographic predictors of Knee Injury and Osteoarthritis Outcome Score (KOOS), International Knee Documentation Committee Subjective Knee Form (IKDC), ACL Quality of Life Questionnaire (ACL-QOL) and Marx Activity Rating Scale (MARS) scores. Chi-Square tests of independence were used to explore the association between meniscal status (torn, not torn), meniscal treatment (excision or repair), graft rupture, and rotatory knee laxity. RESULTS Medial meniscus repair was associated with worse outcomes on the KOOS (β = -1.32, 95% CI: -1.57 to -1.10, p = 0.003), IKDC (β = -1.66, 95% CI: -1.53 to -1.02, p = 0.031) and ACL-QOL (β = -1.25, 95% CI: -1.61 to 1.02, p = n.s.). However, these associations indicated small, clinically insignificant changes based on reported measures of clinical relevance. Other important predictors of post-operative PROMs included age, sex, and baseline scores. Medial meniscus excision and lateral meniscus treatment (repair or excision) did not have an important influence on PROMs. There was no significant association between meniscal treatment and graft rupture or rotatory knee laxity. CONCLUSION While repairing the medial meniscus may result in a small reduction in PROM scores at two-year follow-up, these differences are not likely to be important to patients or clinicians. Any surgical morbidity associated with meniscal repair appears negligible in terms of PROMs. Meniscal repair does not affect rotatory laxity or graft failure rates in the short term. Therefore, meniscal repair should likely be maintained as the standard of care for concomitant meniscal tears with ACLR. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Hana Marmura
- Faculty of Health Sciences, Western University, London, Canada.,Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, 3M Centre, London, ON, N6K 4P3, Canada.,Bone and Joint Institute, Western University, London, Canada.,Lawson Research, London Health Sciences Centre, London, Canada
| | - Andrew Firth
- Faculty of Health Sciences, Western University, London, Canada.,Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, 3M Centre, London, ON, N6K 4P3, Canada.,Bone and Joint Institute, Western University, London, Canada.,Lawson Research, London Health Sciences Centre, London, Canada
| | - Lachlan Batty
- Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, 3M Centre, London, ON, N6K 4P3, Canada.,OrthoSport Victoria Research Unit, Richmond, Australia.,St. Vincent's Hospital, Melbourne, Australia
| | - Dianne M Bryant
- Faculty of Health Sciences, Western University, London, Canada.,Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, 3M Centre, London, ON, N6K 4P3, Canada.,Bone and Joint Institute, Western University, London, Canada.,Lawson Research, London Health Sciences Centre, London, Canada.,Schulich School of Medicine and Dentistry, Western University, London, Canada.,Department of Health Research Methods, Evidence and Impact, McMaster University, Hamilton, Canada
| | - Alan M J Getgood
- Faculty of Health Sciences, Western University, London, Canada. .,Fowler Kennedy Sport Medicine Clinic, University of Western Ontario, 3M Centre, London, ON, N6K 4P3, Canada. .,Bone and Joint Institute, Western University, London, Canada. .,Lawson Research, London Health Sciences Centre, London, Canada. .,Schulich School of Medicine and Dentistry, Western University, London, Canada.
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3
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Firth AD, Bryant DM, Litchfield R, McCormack RG, Heard M, MacDonald PB, Spalding T, Verdonk PC, Peterson D, Bardana D, Rezansoff A, Getgood AM, Willits K, Birmingham T, Hewison C, Wanlin S, Pinto R, Martindale A, O’Neill L, Jennings M, Daniluk M, Boyer D, Zomar M, Moon K, Moon R, Fan B, Mohan B, Buchko GM, Hiemstra LA, Kerslake S, Tynedal J, Stranges G, Mcrae S, Gullett L, Brown H, Legary A, Longo A, Christian M, Ferguson C, Mohtadi N, Barber R, Chan D, Campbell C, Garven A, Pulsifer K, Mayer M, Simunovic N, Duong A, Robinson D, Levy D, Skelly M, Shanmugaraj A, Howells F, Tough M, Thompson P, Metcalfe A, Asplin L, Dube A, Clarkson L, Brown J, Bolsover A, Bradshaw C, Belgrove L, Milan F, Turner S, Verdugo S, Lowe J, Dunne D, McGowan K, Suddens CM, Declerq G, Vuylsteke K, Van Haver M. Predictors of Graft Failure in Young Active Patients Undergoing Hamstring Autograft Anterior Cruciate Ligament Reconstruction With or Without a Lateral Extra-articular Tenodesis: The Stability Experience. Am J Sports Med 2022; 50:384-395. [PMID: 35050817 PMCID: PMC8829733 DOI: 10.1177/03635465211061150] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Anterior cruciate ligament (ACL) reconstruction (ACLR) has higher failure rates in young active patients returning to sports as compared with older, less active individuals. Augmentation of ACLR with an anterolateral procedure has been shown to reduce failure rates; however, indications for this procedure have yet to be clearly defined. PURPOSE/HYPOTHESIS The purpose of this study was to identify predictors of ACL graft failure in high-risk patients and determine key indications for when hamstring ACLR should be augmented by a lateral extra-articular tenodesis (LET). We hypothesized that different preoperative characteristics and surgical variables may be associated with graft failure characterized by asymmetric pivot shift and graft rupture. STUDY DESIGN Case-control study; Level of evidence, 3. METHODS Data were obtained from the Stability 1 Study, a multicenter randomized controlled trial of young active patients undergoing autologous hamstring ACLR with or without a LET. We performed 2 multivariable logistic regression analyses, with asymmetric pivot shift and graft rupture as the dependent variables. The following were included as predictors: LET, age, sex, graft diameter, tear chronicity, preoperative high-grade knee laxity, preoperative hyperextension on the contralateral side, medial meniscal repair/excision, lateral meniscal repair/excision, posterior tibial slope angle, and return-to-sports exposure time and level. RESULTS Of the 618 patients in the Stability 1 Study, 568 with a mean age of 18.8 years (292 female; 51.4%) were included in this analysis. Asymmetric pivot shift occurred in 152 (26.8%) and graft rupture in 43 (7.6%). The addition of a LET (odds ratio [OR], 0.56; 95% CI, 0.37-0.83) and increased graft diameter (OR, 0.62; 95% CI, 0.44-0.87) were significantly associated with lower odds of asymmetric pivot shift. The addition of a LET (OR, 0.40; 95% CI, 0.18-0.91) and older age (OR, 0.83; 95% CI, 0.72-0.96) significantly reduced the odds of graft rupture, while greater tibial slope (OR, 1.15; 95% CI, 1.01-1.32), preoperative high-grade knee laxity (OR, 3.27; 95% CI, 1.45-7.41), and greater exposure time to sport (ie, earlier return to sport) (OR, 1.18; 95% CI, 1.08-1.29) were significantly associated with greater odds of rupture. CONCLUSION The addition of a LET and larger graft diameter were significantly associated with reduced odds of asymmetric pivot shift. Adding a LET was protective of graft rupture, while younger age, greater posterior tibial slope, high-grade knee laxity, and earlier return to sport were associated with increased odds of graft rupture. Orthopaedic surgeons should consider supplementing hamstring autograft ACLR with a LET in young active patients with morphological characteristics that make them at high risk of reinjury.
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Affiliation(s)
| | | | - Robert Litchfield
- London Health Sciences Centre, Western University, Fowler Kennedy Sport Medicine Clinic, London, Canada
| | | | | | | | - Tim Spalding
- University Hospitals Coventry Warwickshire NHS Trust, Coventry, UK
| | | | | | | | - Alex Rezansoff
- Sport Medicine Centre, University of Calgary, Calgary, Canada
| | | | - Alan M.J. Getgood
- Alan M.J. Getgood, MD, Fowler Kennedy Sport Medicine Clinic, Western University, 3M Centre, London, ON N6A 3K7, Canada () (Twitter: FKSMC_Getgood)
| | | | | | | | | | | | | | | | | | - Michal Daniluk
- London Health Sciences Centre, Western University, Fowler Kennedy Sport Medicine Clinic, London, Canada
| | | | | | | | | | | | - Bindu Mohan
- Fraser Orthopaedic Institute, New Westminster, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Michelle Mayer
- Sport Medicine Centre, University of Calgary, Calgary, Canada
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | - Mieke Van Haver
- Antwerp Orthopaedic Center, Ghent, Belgium,Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
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4
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Batty LM, Firth A, Moatshe G, Bryant DM, Heard M, McCormack RG, Rezansoff A, Peterson DC, Bardana D, MacDonald PB, Verdonk PCM, Spalding T, Getgood AMJ, Willits K, Birmingham T, Hewison C, Wanlin S, Firth A, Pinto R, Martindale A, O'Neill L, Jennings M, Daniluk M, Boyer D, Zomar M, Moon K, Pritchett R, Payne K, Fan B, Mohan B, Buchko GM, Hiemstra LA, Kerslake S, Tynedal J, Stranges G, Mcrae S, Gullett L, Brown H, Legary A, Longo A, Christian M, Ferguson C, Mohtadi N, Barber R, Chan D, Campbell C, Garven A, Pulsifer K, Mayer M, Simunovic N, Duong A, Robinson D, Levy D, Skelly M, Shanmugaraj A, Howells F, Tough M, Thompson P, Metcalfe A, Asplin L, Dube A, Clarkson L, Brown J, Bolsover A, Bradshaw C, Belgrove L, Millan F, Turner S, Verdugo S, Lowe J, Dunne D, McGowan K, Suddens CM, Declercq G, Vuylsteke K, Van Haver M. Association of Ligamentous Laxity, Male Sex, Chronicity, Meniscal Injury, and Posterior Tibial Slope With a High-Grade Preoperative Pivot Shift: A Post Hoc Analysis of the STABILITY Study. Orthop J Sports Med 2021; 9:23259671211000038. [PMID: 33889648 PMCID: PMC8033400 DOI: 10.1177/23259671211000038] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/21/2023] Open
Abstract
Background: A spectrum of anterolateral rotatory laxity exists in anterior cruciate
ligament (ACL)–injured knees. Understanding of the factors contributing to a
high-grade pivot shift continues to be refined. Purpose: To investigate factors associated with a high-grade preoperative pivot shift
and to evaluate the relationship between this condition and baseline
patient-reported outcome measures (PROMs). Study Design: Cross-sectional study; Level of evidence, 3. Methods: A post hoc analysis was performed of 618 patients with ACL deficiency deemed
high risk for reinjury. A binary logistic regression model was developed,
with high-grade pivot shift as the dependent variable. Age, sex, Beighton
score, chronicity of the ACL injury, posterior third medial or lateral
meniscal injury, and tibial slope were selected as independent variables.
The importance of knee hyperextension as a component of the Beighton score
was assessed using receiver operator characteristic curves. Baseline PROMs
were compared between patients with and without a high-grade pivot. Results: Six factors were associated with a high-grade pivot shift: Beighton score
(each additional point; odds ratio [OR], 1.17; 95% CI, 1.06-1.30;
P = .002), male sex (OR, 2.30; 95% CI, 1.28-4.13;
P = .005), presence of a posterior third medial (OR,
2.55; 95% CI, 1.11-5.84; P = .03) or lateral (OR, 1.76; 95%
CI, 1.01-3.08; P = .048) meniscal injury, tibial slope
>9° (OR, 2.35; 95% CI, 1.09-5.07; P = .03), and
chronicity >6 months (OR, 1.70; 95% CI, 1.00-2.88; P =
.049). The presence of knee hyperextension improved the diagnostic utility
of the Beighton score as a predictor of a high-grade pivot shift. Tibial
slope <9° was associated with only a high-grade pivot in the presence of
a posterior third medial meniscal injury. Patients with a high-grade pivot
shift had higher baseline 4-Item Pain Intensity Measure scores than did
those without a high-grade pivot shift (mean ± SD, 11 ± 13 vs 8 ± 14;
P = .04); however, there was no difference between
groups in baseline International Knee Documentation Committee, ACL Quality
of Life, Knee injury and Osteoarthritis Outcome Score, or Knee injury and
Osteoarthritis Outcome Score subscale scores. Conclusion: Ligamentous laxity, male sex, posterior third medial or lateral meniscal
injury, increased posterior tibial slope, and chronicity were associated
with a high-grade pivot shift in this population deemed high risk for repeat
ACL injury. The effect of tibial slope may be accentuated by the presence of
meniscal injury, supporting the need for meniscal preservation. Baseline
PROMs were similar between patients with and without a high-grade pivot
shift.
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Affiliation(s)
- Lachlan M Batty
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Andrew Firth
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Gilbert Moatshe
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Dianne M Bryant
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Mark Heard
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Robert G McCormack
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alex Rezansoff
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Devin C Peterson
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Davide Bardana
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Peter B MacDonald
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Peter C M Verdonk
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Tim Spalding
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alan M J Getgood
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | | | - Kevin Willits
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Trevor Birmingham
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Chris Hewison
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Stacey Wanlin
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Andrew Firth
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Ryan Pinto
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Ashley Martindale
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Lindsey O'Neill
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Morgan Jennings
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Michal Daniluk
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Dory Boyer
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Mauri Zomar
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Karyn Moon
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Raely Pritchett
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Krystan Payne
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Brenda Fan
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Bindu Mohan
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Gregory M Buchko
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Laurie A Hiemstra
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Sarah Kerslake
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Jeremy Tynedal
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Greg Stranges
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Sheila Mcrae
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - LeeAnne Gullett
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Holly Brown
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alexandra Legary
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alison Longo
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Mat Christian
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Celeste Ferguson
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Nick Mohtadi
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Rhamona Barber
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Denise Chan
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Caitlin Campbell
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alexandra Garven
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Karen Pulsifer
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Michelle Mayer
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Nicole Simunovic
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Andrew Duong
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - David Robinson
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - David Levy
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Matt Skelly
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Ajaykumar Shanmugaraj
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Fiona Howells
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Murray Tough
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Pete Thompson
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Andrew Metcalfe
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Laura Asplin
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alisen Dube
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Louise Clarkson
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Jaclyn Brown
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alison Bolsover
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Carolyn Bradshaw
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Larissa Belgrove
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Francis Millan
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Sylvia Turner
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Sarah Verdugo
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Janet Lowe
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Debra Dunne
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Kerri McGowan
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Charlie-Marie Suddens
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Geert Declercq
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Kristien Vuylsteke
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Mieke Van Haver
- Investigation performed at the Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
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Getgood AMJ, Bryant DM, Litchfield R, Heard M, McCormack RG, Rezansoff A, Peterson D, Bardana D, MacDonald PB, Verdonk PCM, Spalding T, Willits K, Birmingham T, Hewison C, Wanlin S, Firth A, Pinto R, Martindale A, O'Neill L, Jennings M, Daniluk M, Boyer D, Zomar M, Moon K, Pritchett R, Payne K, Fan B, Mohan B, Buchko GM, Hiemstra LA, Kerslake S, Tynedal J, Stranges G, Mcrae S, Gullett L, Brown H, Legary A, Longo A, Christian M, Ferguson C, Mohtadi N, Barber R, Chan D, Campbell C, Garven A, Pulsifer K, Mayer M, Simunovic N, Duong A, Robinson D, Levy D, Skelly M, Shanmugaraj A, Howells F, Tough M, Spalding T, Thompson P, Metcalfe A, Asplin L, Dube A, Clarkson L, Brown J, Bolsover A, Bradshaw C, Belgrove L, Millan F, Turner S, Verdugo S, Lowe J, Dunne D, McGowan K, Suddens CM, Declercq G, Vuylsteke K, Van Haver M. Lateral Extra-articular Tenodesis Reduces Failure of Hamstring Tendon Autograft Anterior Cruciate Ligament Reconstruction: 2-Year Outcomes From the STABILITY Study Randomized Clinical Trial. Am J Sports Med 2020; 48:285-297. [PMID: 31940222 DOI: 10.1177/0363546519896333] [Citation(s) in RCA: 291] [Impact Index Per Article: 72.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Persistent anterolateral rotatory laxity after anterior cruciate ligament (ACL) reconstruction (ACLR) has been correlated with poor clinical outcomes and graft failure. HYPOTHESIS We hypothesized that a single-bundle, hamstring ACLR in combination with a lateral extra-articular tenodesis (LET) would reduce the risk of ACLR failure in young, active individuals. STUDY DESIGN Randomized controlled trial; Level of evidence, 1. METHODS This is a multicenter, prospective, randomized clinical trial comparing a single-bundle, hamstring tendon ACLR with or without LET performed using a strip of iliotibial band. Patients 25 years or younger with an ACL-deficient knee were included and also had to meet at least 2 of the following 3 criteria: (1) grade 2 pivot shift or greater, (2) a desire to return to high-risk/pivoting sports, (3) and generalized ligamentous laxity (GLL). The primary outcome was ACLR clinical failure, a composite measure of rotatory laxity or a graft rupture. Secondary outcome measures included the P4 pain scale, Marx Activity Rating Scale, Knee injury Osteoarthritis and Outcome Score (KOOS), International Knee Documentation Committee score, and ACL Quality of Life Questionnaire. Patients were reviewed at 3, 6, 12, and 24 months postoperatively. RESULTS A total of 618 patients (297 males; 48%) with a mean age of 18.9 years (range, 14-25 years) were randomized. A total of 436 (87.9%) patients presented preoperatively with high-grade rotatory laxity (grade 2 pivot shift or greater), and 215 (42.1%) were diagnosed as having GLL. There were 18 patients lost to follow-up and 11 who withdrew (~5%). In the ACLR group, 120/298 (40%) patients sustained the primary outcome of clinical failure, compared with 72/291 (25%) in the ACLR+LET group (relative risk reduction [RRR], 0.38; 95% CI, 0.21-0.52; P < .0001). A total of 45 patients experienced graft rupture, 34/298 (11%) in the ACLR group compared with 11/291 (4%) in the ACL+LET group (RRR, 0.67; 95% CI, 0.36-0.83; P < .001). The number needed to treat with LET to prevent 1 patient from graft rupture was 14.3 over the first 2 postoperative years. At 3 months, patients in the ACLR group had less pain as measured by the P4 (P = .003) and KOOS (P = .007), with KOOS pain persisting in favor of the ACLR group to 6 months (P = .02). No clinically important differences in patient-reported outcome measures were found between groups at other time points. The level of sports activity was similar between groups at 2 years after surgery, as measured by the Marx Activity Rating Scale (P = .11). CONCLUSION The addition of LET to a single-bundle hamstring tendon autograft ACLR in young patients at high risk of failure results in a statistically significant, clinically relevant reduction in graft rupture and persistent rotatory laxity at 2 years after surgery. REGISTRATION NCT02018354 ( ClinicalTrials.gov identifier).
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Affiliation(s)
- Alan M J Getgood
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Dianne M Bryant
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Robert Litchfield
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Mark Heard
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Robert G McCormack
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alex Rezansoff
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Devin Peterson
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Davide Bardana
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Peter B MacDonald
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Peter C M Verdonk
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Tim Spalding
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Kevin Willits
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Trevor Birmingham
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Chris Hewison
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Stacey Wanlin
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Andrew Firth
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Ryan Pinto
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Ashley Martindale
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Lindsey O'Neill
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Morgan Jennings
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Michal Daniluk
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Dory Boyer
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Mauri Zomar
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Karyn Moon
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Raely Pritchett
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Krystan Payne
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Brenda Fan
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Bindu Mohan
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Gregory M Buchko
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Laurie A Hiemstra
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Sarah Kerslake
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Jeremy Tynedal
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Greg Stranges
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Sheila Mcrae
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - LeeAnne Gullett
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Holly Brown
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alexandra Legary
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alison Longo
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Mat Christian
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Celeste Ferguson
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Nick Mohtadi
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Rhamona Barber
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Denise Chan
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Caitlin Campbell
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alexandra Garven
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Karen Pulsifer
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Michelle Mayer
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Nicole Simunovic
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Andrew Duong
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - David Robinson
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - David Levy
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Matt Skelly
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Ajaykumar Shanmugaraj
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Fiona Howells
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Murray Tough
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Tim Spalding
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Pete Thompson
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Andrew Metcalfe
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Laura Asplin
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alisen Dube
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Louise Clarkson
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Jaclyn Brown
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Alison Bolsover
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Carolyn Bradshaw
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Larissa Belgrove
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Francis Millan
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Sylvia Turner
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Sarah Verdugo
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Janet Lowe
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Debra Dunne
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Kerri McGowan
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Charlie-Marie Suddens
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Geert Declercq
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Kristien Vuylsteke
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
| | - Mieke Van Haver
- Investigation performed at The Fowler Kennedy Sport Medicine Clinic, Western University, London, Ontario, Canada
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Sagheer S, Rodgers S, Yacoub O, Dauer R, Mcrae S, Duncan E. Comparison of von Willebrand factor (VWF) activity levels determined by HemosIL AcuStar assay and HemosIL LIA assay with ristocetin cofactor assay by aggregometry. Haemophilia 2016; 22:e200-7. [PMID: 27076201 DOI: 10.1111/hae.12937] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 02/14/2016] [Indexed: 12/29/2022]
Abstract
INTRODUCTION Diagnosis of von Willebrand disease (VWD) requires quantitative as well as qualitative determination of von Willebrand factor (VWF) levels. For functional assessment of VWF, ristocetin cofactor assay by aggregometry is considered to be the gold standard. However, need for technical expertise, labour intensiveness, difficult standardization and high intra- and inter- assay variabilities are some of the limitations of this methodology. Various assays for determination of VWF adhesive function using different methodologies have been developed in recent years. AIM To evaluate the HemosIL AcuStar chemiluminescence assay (VWF:RCo[Acu]) and the HemosIL latex immunoassay (VWF:act) as diagnostic tests for VWD and identification of type 2 VWD in comparison with the ristocetin cofactor assay performed by aggregometry (VWF:RCo[Agg]). METHODS Results from 96 samples analysed by VWF:RCo[Acu] and 128 samples by VWF:act were compared with VWF:RCo[Agg]. Sixty of these samples (25 normal, 17 type 1 and 18 type 2) were analysed by all three assays. RESULTS VWF:RCo[Acu] showed excellent agreement with VWF:RCo[Agg], and readily identified all type 2 VWD samples tested. VWF:act showed reasonable agreement with VWF:RCo[Agg] for most patients, but had a slightly lower sensitivity for detection of type 2 VWD. CONCLUSION VWF:RCo[Acu] assay has the potential to replace VWF:RCo[Agg] for the diagnosis of VWD.
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Affiliation(s)
- S Sagheer
- Haematology Division, SA Pathology, Adelaide, Australia
| | - S Rodgers
- Haematology Division, SA Pathology, Adelaide, Australia
| | - O Yacoub
- Haematology Division, SA Pathology, Adelaide, Australia
| | - R Dauer
- Haematology Department, The Alfred, Prahan, Australia
| | - S Mcrae
- Haematology Division, SA Pathology, Adelaide, Australia
| | - E Duncan
- Haematology Division, SA Pathology, Adelaide, Australia
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Abstract
Surgical treatment of distal hamstring ruptures at the knee is rare and has been reported infrequently in the literature. This article describes a 22-year-old former collegiate football player who had his career cut short secondary to a chronic distal rupture of the biceps femoris at the knee. Reconstruction of the distal biceps femoris tendon with semitendinosus allograft resulted in an excellent clinical outcome and allowed the patient to return to a high level of physical activity. This case presents a unique cause of knee pain and weakness in a young, active patient and a corresponding effective surgical treatment for such an injury.
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Affiliation(s)
- Randy Mascarenhas
- Section of Orthopedics, University of Manitoba, Winnipeg, Manitoba, Canada
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