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Cain EL, Mussell EA, Crawford AE, Ithurburn MP, Layton BO, Fleisig GS, Rothermich MA, Emblom BA, Ryan MK, Dugas JR, Andrews JR. Long-term Outcomes of Multiligament Knee Injuries in American Football Players. Am J Sports Med 2024; 52:1918-1926. [PMID: 38822594 DOI: 10.1177/03635465241252440] [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: 06/03/2024]
Abstract
BACKGROUND Long-term outcomes for isolated anterior cruciate ligament (ACL) reconstructions in competitive American football athletes are well reported in the literature, but little data currently exist regarding multiligament knee injury (MLKI) reconstruction outcomes. PURPOSE To examine patient-reported and return-to-sport outcomes of competitive American football athletes who underwent primary, single-staged, multiligament knee reconstruction. STUDY DESIGN Case series; Level of evidence, 4. METHODS We identified patients from our institution's prospectively collected data repository between 2001 and 2020 who underwent single-staged surgical reconstruction of an MLKI sustained during competitive participation in American football. We assessed patient-reported outcomes at a minimum of 2 years after surgery using the International Knee Documentation Committee (IKDC) Subjective Knee Form and questions regarding surgical satisfaction and return to sport. Successful return to sport was defined as a return to preinjury level of competition. We summarized all outcome data and compared outcomes between 2-ligament and >2-ligament groups and between ACL-only MLKI injury and bicruciate MLKI injury groups using independent t test for IKDC scores and chi-square test for return to sport. Additionally, we evaluated predictors of postoperative IKDC scores using linear regression and predictors of return to sport using logistic regression. RESULTS Outcome data were successfully collected for 53 of 73 total eligible patients (73%; mean follow-up time, 7.7 ± 4.0 years; all male; mean age at surgery, 18.1 ± 2.7 years). The mean postoperative IKDC score was 84 ± 16. The most common level of preinjury competition was high school (n = 36; 68%), followed by college (n = 10; 19%). Seven patients did not return to sport competition at any level due to limitations from their knee surgery, and 82% of patients that attempted to return to preinjury level of sport were able to do so. A total of 50 patients (94%) were satisfied or very satisfied with their surgical outcome. The 2-ligament (n = 39) and >2-ligament (n = 14) groups did not significantly differ in IKDC scores (P = .96) or proportions with successful return to sport (P = .77). Similarly, the ACL-MLKI injury (n = 39) and bicruciate MLKI injury (n = 14) groups did not significantly differ in IKDC scores (P = .89) or proportions with successful return to sport (P = .77). Age and body mass index were not significantly associated with IKDC scores or successful return to sport at follow-up (all P > .05). CONCLUSION This study may represent the largest cohort of competitive American football athletes evaluated for longitudinal outcomes after multiligament knee reconstruction. Despite the severity of these injuries, we found good knee-related function and that the large majority of athletes who attempted to return to sport were successful. The majority of athletes (94%) were satisfied with their operative treatment.
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Affiliation(s)
- E Lyle Cain
- Andrews Sports Medicine and Orthopaedic Center, Birmingham, Alabama, USA
- The American Sports Medicine Institute, Birmingham, Alabama, USA
| | - Eric A Mussell
- Andrews Sports Medicine and Orthopaedic Center, Birmingham, Alabama, USA
- The American Sports Medicine Institute, Birmingham, Alabama, USA
| | - Anna E Crawford
- Andrews Sports Medicine and Orthopaedic Center, Birmingham, Alabama, USA
- The American Sports Medicine Institute, Birmingham, Alabama, USA
| | - Matthew P Ithurburn
- The American Sports Medicine Institute, Birmingham, Alabama, USA
- Department of Physical Therapy, School of Health Professions, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Branum O Layton
- Andrews Sports Medicine and Orthopaedic Center, Birmingham, Alabama, USA
- The American Sports Medicine Institute, Birmingham, Alabama, USA
| | - Glenn S Fleisig
- The American Sports Medicine Institute, Birmingham, Alabama, USA
| | - Marcus A Rothermich
- Andrews Sports Medicine and Orthopaedic Center, Birmingham, Alabama, USA
- The American Sports Medicine Institute, Birmingham, Alabama, USA
| | - Benton A Emblom
- Andrews Sports Medicine and Orthopaedic Center, Birmingham, Alabama, USA
- The American Sports Medicine Institute, Birmingham, Alabama, USA
| | - Michael K Ryan
- The American Sports Medicine Institute, Birmingham, Alabama, USA
- Prevea Health Orthopaedics & Sports Medicine, Green Bay, Wisconsin, USA
| | - Jeffrey R Dugas
- Andrews Sports Medicine and Orthopaedic Center, Birmingham, Alabama, USA
- The American Sports Medicine Institute, Birmingham, Alabama, USA
| | - James R Andrews
- Andrews Sports Medicine and Orthopaedic Center, Birmingham, Alabama, USA
- The American Sports Medicine Institute, Birmingham, Alabama, USA
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Fu SC, Shum WT, Hung LK, Wong MWN, Qin L, Chan KM. Low-intensity pulsed ultrasound on tendon healing: a study of the effect of treatment duration and treatment initiation. Am J Sports Med 2008; 36:1742-9. [PMID: 18645043 DOI: 10.1177/0363546508318193] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Low-intensity pulsed ultrasound has been reported to be effective in promoting tendon healing. However, its optimal time and duration has not yet been determined. HYPOTHESIS Tendons at different stages of healing may respond differently to low-intensity pulsed ultrasound. In the present study, the timing effects of low-intensity pulsed ultrasound on tendon healing were investigated in a rat model with a patellar tendon graft harvest lesion. STUDY DESIGN Controlled laboratory study. METHODS Sixty Sprague-Dawley rats underwent central third patellar tendon donor site harvest. Low-intensity pulsed ultrasound sonication was then delivered to the injured knees at day 1, 14, or 28 after harvest for 2, 4, or 6 weeks. Tendon samples were harvested at day 14, 28, and 42 after lesion for histological examination and mechanical testing. RESULTS A 2-week session of low-intensity pulsed ultrasound applied from day 1 postlesion (D1-2W) significantly improved the ultimate mechanical strength of the healing tendons from 23.1 +/- 8.5 MPa to 36.6 +/- 9.0 MPa. Low-intensity pulsed ultrasound did not improve healing when it was given at later stages in D15-2W and D29-2W. When low-intensity pulsed ultrasound treatment was extended from 2 weeks (D1-2W) to 4 weeks (D1-4W) or 6 weeks (D1-6W), the beneficial effects on tendon healing became insignificant. Histological examination showed that low-intensity pulsed ultrasound sonication at late healing stages may disturb remodeling with a poor collagen fiber alignment. CONCLUSION Low-intensity pulsed ultrasound promoted restoration of mechanical strength and collagen alignment in healing tendons only when applied at early healing stages. CLINICAL RELEVANCE The present findings indicate that low-intensity pulsed ultrasound may be an effective treatment to reduce tendon donor site morbidity.
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Affiliation(s)
- Sai-Chuen Fu
- Department of Orthopaedics & Traumatology, The Chinese University of Hong Kong, Prince of Wales Hospital, Shatin, New Territories, Hong Kong, China
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Abstract
PURPOSE To assess the length of the patellar tendon in Chinese and its correlation with patient age, gender, and operated side. METHODS 109 men and 11 women aged 15 to 45 (mean, 25) years underwent arthroscopic bone-tendon-bone reconstruction for anterior cruciate ligament (ACL) insufficiency. 55 (46%) injured the left side, and 65 (54%) the right side. Each patient's age, gender, and operated side were recorded. The length of the patellar tendon harvested was measured. RESULTS The mean length of the patellar tendon graft was 42.6 (standard deviation, 4.6; range, 30-54) mm. There was no correlation between the length of the patellar tendon and patient's age (p=0.147), gender (p=0.076), or operated side (p=0.466). CONCLUSION The length of the patellar tendon in the Chinese is comparable to that in Caucasians. Because of the shorter ACL but similar patellar tendon length, graft-tunnel mismatch may be more common in Chinese than Caucasian patients.
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Affiliation(s)
- K M S Luk
- Department of Orthopaedics and Traumatology, United Christian Hospital, Hong Kong.
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Schoderbek RJ, Treme GP, Miller MD. Bone-patella tendon-bone autograft anterior cruciate ligament reconstruction. Clin Sports Med 2007; 26:525-47. [PMID: 17920951 DOI: 10.1016/j.csm.2007.06.006] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
The anterior cruciate ligament (ACL) serves an important stabilizing and biomechanical function for the knee. Reconstruction of the ACL remains one of the most commonly performed procedures in the field of sports medicine. Reconstruction of the ACL with bone-patella tendon-bone (BPTB) autograft secured with interference screw fixation has been the historical reference standard and remains the benchmark against which other methods are gauged. This article reviews the reconstruction of the ACL with BPTB autograft including the surgical technique, rationale for BTPB use, and outcomes.
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Affiliation(s)
- Robert J Schoderbek
- Department of Orthopaedic Surgery, University of Virginia Health Systems, 400 Ray C. Hunt Drive, Third Floor, Charlottesville, VA 22903, USA
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Milankov M, Stankovic M, Miljkovic N. Protection of the bone-tendon-bone graft during anterior cruciate ligament reconstruction. Arch Orthop Trauma Surg 2005; 125:288-90. [PMID: 15657764 DOI: 10.1007/s00402-004-0789-8] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/05/2004] [Indexed: 10/25/2022]
Abstract
Damage of graft fibers is a complication that can happen during arthroscopic reconstruction of the anterior cruciate ligament. It usually occurs while pulling the neoligament through the tibial tunnel, inserting the femoral screw, or doing additional notchplasty. Protection of the graft with a polyethylene tube can reduce the risk of graft laceration.
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Affiliation(s)
- Miroslav Milankov
- Department of Orthopedic Surgery and Traumatology, University of Novi Sad, Hajduk Veljkova 1, 21000 Novi Sad, Serbia and Montenegro.
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