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Stokes DJ, Elrick BP, Carpenter ML, Raji Y, McQuivey KS, Sherman SL, Frank RM. Tibial Tubercle Osteotomy: Indications, Outcomes, and Complications. Curr Rev Musculoskelet Med 2024:10.1007/s12178-024-09915-w. [PMID: 39102076 DOI: 10.1007/s12178-024-09915-w] [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] [Accepted: 07/02/2024] [Indexed: 08/06/2024]
Abstract
PURPOSE OF REVIEW The tibial tubercle osteotomy (TTO) is a versatile surgical technique used to treat a range of patellofemoral disorders, including patellar instability, painful malalignment, focal chondral defects, and patellar maltracking that have failed conservative therapies. TTO is a personalized procedure that can be tailored to the pathoanatomy of the patient based on physical examination and imaging. The complication rate associated with TTO strongly depends on the indication for surgery, the severity of the patient's condition, and the surgical approach. Despite the literature on TTO, to our knowledge, no single source has addressed the indications, techniques, outcomes, and complications of this procedure. The purpose of this article is to serve as such a valuable resource. RECENT FINDINGS Highlights from recent studies we would like to emphasize are two-fold. First, maintaining a distal cortical hinge yields lower complication rates than osteotomies involving complete tubercle detachment with classic or standard techniques. Second, based on current evidence, TTO consistently provides symptomatic relief, and most patients can return to work or sport at their pre-operative level within 3 and 6 months, respectively. TTO is a personalizable surgical technique that may be utilized for multiple patellofemoral disorders and is associated with good outcomes.
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Affiliation(s)
- Daniel J Stokes
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, CO, USA
| | - Bryant P Elrick
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, CO, USA
| | - Melissa L Carpenter
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, CO, USA
| | - Yazdan Raji
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Redwood City, CA, USA
| | - Kade S McQuivey
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, CO, USA
| | - Seth L Sherman
- Department of Orthopaedic Surgery, Stanford University School of Medicine, Redwood City, CA, USA
| | - Rachel M Frank
- Department of Orthopaedic Surgery, University of Colorado School of Medicine, Aurora, CO, USA.
- UCHealth CU Sports Medicine - CO Center, 2000 S. Colorado Blvd Tower 1, Suite 4500, Denver, CO, 80222, USA.
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Ayas IH, Hazar Z, Kaya I, Ataoğlu MB, Kanatlı U. Is kinesiophobia associated with functional outcome measures in patients following medial patellofemoral ligament reconstruction? Knee 2024; 49:45-51. [PMID: 38843675 DOI: 10.1016/j.knee.2024.04.003] [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: 01/18/2024] [Revised: 03/10/2024] [Accepted: 04/18/2024] [Indexed: 08/24/2024]
Abstract
BACKGROUND This study aimed to investigate the potential relationship between kinesiophobia and functional outcomes in patients following medial patellofemoral ligament reconstruction (MPFLr). METHODS Twenty-one patients (six males, 15 females) who underwent MPFLr between 2016 and 2020, (23.57 ± 9.49 years old) with a mean follow up period of 52.33 ± 24.82 months were included in the study. Following an assessment of patellar stability and alignment, kinesiophobia levels, function and balance were measured. The kinesiophobia was measured using the Tampa Scale of Kinesiophobia, while functional outcomes were assessed with the single-leg hop test, Y-Balance test and single-leg sway index. The self-reported function was measured by Kujala patellofemoral score and Lysholm knee score. RESULTS The patients exhibited kinesiophobia scores of 43.10 ± 6.90. A negative correlation existed between kinesiophobia and both the Kujala scores (r = -0.75, P < 0.001) and the Lysholm scores (r = -0.79, P < 0.001). Moderate negative correlations were observed between kinesiophobia and the single-leg hop distance (r = -0.64, P < 0.01), as well as in Y-Balance test anterior reach distance (r = -0.51, P < 0.01) and posterolateral reach distance (r = -0.55, P < 0.01). Additionally, a low negative correlation was noted between kinesiophobia and Y-Balance test posteromedial reach distances (r = -0.43, P = 0.05), as well as the total sway index (r = -0.46, P = 0.04). CONCLUSIONS A high level of kinesiophobia was strongly correlated with self-reported functional scores and moderately correlated with measured functional outcomes. The findings underscore a notable prevalence of kinesiophobia following biomechanically successful MPFLr. Investigating the impact of kinesiophobia on outcomes after MPFLr may provide a better understanding of patient recovery.
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Affiliation(s)
- Inci Hazal Ayas
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Gazi University, Ankara, Turkey.
| | - Zeynep Hazar
- Department of Physiotherapy and Rehabilitation, Faculty of Health Sciences, Gazi University, Ankara, Turkey
| | - Ibrahim Kaya
- Department of Orthopaedics and Traumatology, Abdurrahman Yurtaslan Oncology Training and Research Hospital, Ankara, Turkey
| | - Muhammet Baybars Ataoğlu
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Gazi University, Ankara, Turkey
| | - Ulunay Kanatlı
- Department of Orthopaedics and Traumatology, Faculty of Medicine, Gazi University, Ankara, Turkey
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Zhang J, Lai S, Li J, Zhang C, Yao L, Zhang Y, Chen K, Cai W, Li J, Li Q. Early Postoperative Rapid Rehabilitation Yields More Favorable Short-term Outcomes in Patients Undergoing Patellar Realignment Surgery for Recurrent Patellar Dislocation: A Prospective Randomized Controlled Study. Am J Sports Med 2024; 52:2205-2214. [PMID: 38884318 DOI: 10.1177/03635465241254524] [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: 06/18/2024]
Abstract
BACKGROUND Use of a rapid rehabilitation protocol for postoperative recovery after recurrent patellar dislocation (RPD) has gradually gained attention; nonetheless, evidence of its safety and effectiveness is lacking. PURPOSE To compare the short-term postoperative outcomes of early rapid rehabilitation with those of conservative rehabilitation in patients with RPD. STUDY DESIGN Randomized controlled trial; Level of evidence, 2. METHODS A total of 50 patients with RPD who underwent tibial tubercle osteotomy combined with medial patellofemoral ligament reconstruction were enrolled between January 2018 and February 2019. Postoperatively, the patients were randomly assigned to either the early rapid group (rapid group; n = 25 patients) or the conservative group (control group; n = 25 patients) for rehabilitation training. The rapid group underwent faster progression in weightbearing and range of motion (ROM) training. Knee joint functional scores, ROM, bilateral thigh circumference differences, and imaging data were recorded preoperatively and at 6 weeks and 3, 6, 12, and 24 months postoperatively for comparison. Postoperative complications were recorded over the 24-month follow-up period. RESULTS The baseline data did not significantly differ between the 2 groups. Postoperatively, compared with the control group, the rapid group had higher Tegner scores at 6 weeks and 3 months; higher Lysholm scores at 3 and 6 months; higher International Knee Documentation Committee scores at 6 weeks, 3 months, and 12 months; better ROM; and smaller bilateral thigh circumference differences at 24 months (P < .05 for all). However, no differences were observed in the Tegner, Lysholm, and International Knee Documentation Committee scores at 24 months postoperatively. At the 6-week and subsequent follow-up visits, the Caton and Insall indices were lower in the control group than in the rapid group (P < .01 for all). Moreover, compared with the control group, the rapid group had a lower incidence of patella baja at 24 months (0% vs 17%) and fewer complications during the whole follow-up period (P < .01). CONCLUSION Early rapid postoperative rehabilitation appears to be safe and effective for patients who undergo tibial tubercle osteotomy combined with medial patellofemoral ligament reconstruction to treat RPD. In the short term, this approach was shown to be more advantageous than conservative rehabilitation in improving functional scores, allowing an earlier return to daily activities, although the lack of difference at 24 months implies no long-term benefits. In addition, it potentially helped to prevent the occurrence of complications, including patella baja. REGISTRATION ChiCTR1800014648 (ClinicalTrials.gov identifier).
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Affiliation(s)
- Jiayao Zhang
- Sports Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Sike Lai
- Sports Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Junqiao Li
- Sports Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Chenghao Zhang
- Sports Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Lei Yao
- Sports Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Yuyan Zhang
- Sports Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Kunhao Chen
- Sports Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Wufeng Cai
- Sports Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Jian Li
- Sports Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
| | - Qi Li
- Sports Medicine Center, West China Hospital, Sichuan University, Chengdu 610041, China
- Department of Orthopedics and Orthopedic Research Institute, West China Hospital, Sichuan University, Chengdu 610041, China
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Hughes AJ, Li ZI, Garra S, Green JS, Chalem I, Triana J, Jazrawi LM, Medvecky MJ, Alaia MJ. Clinical and Functional Outcomes of Documented Knee Dislocation Versus Multiligamentous Knee Injury: A Comparison of KD3 Injuries at Mean 6.5 Years Follow-up. Am J Sports Med 2024; 52:961-967. [PMID: 38400667 DOI: 10.1177/03635465241231032] [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: 02/25/2024]
Abstract
BACKGROUND Previous research has found that the incidence of neurovascular injury is greatest among multiligamentous knee injuries (MLKIs) with documented knee dislocation (KD). However, it is unknown whether there is a comparative difference in functional recovery based on evidence of a true dislocation. PURPOSE To determine whether the knee dislocation-3 (KD3) injury pattern of MLKI with documented tibiofemoral dislocation represents a more severe injury than KD3 MLKI without documented dislocation, as manifested by poorer clinical outcomes at long-term follow-up. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS A multicenter retrospective cohort study was performed of patients who underwent surgical treatment for KD3 MLKI between May 2012 and February 2021. Outcomes were assessed using the International Knee Documentation Committee (IKDC) score, Lysholm score, Tegner activity scale, and visual analog scale (VAS) for pain. Documented dislocation was defined as a radiographically confirmed tibiofemoral disarticulation, the equivalent radiology report from outside transfer, or emergency department documentation of a knee reduction maneuver. Subgroup analysis was performed comparing lateral (KD3-L) versus medial (KD3-M) injuries. Multivariable linear regression was conducted to determine whether documented dislocation was predictive of outcomes. RESULTS A total of 42 patients (25 male, 17 female) were assessed at a mean 6.5-year follow-up (range, 2.1-10.7 years). Twenty patients (47.6%) were found to have a documented KD; they reported significantly lower IKDC (49.9 vs 63.0; P = .043), Lysholm (59.8 vs 74.5; P = .023), and Tegner activity level (2.9 vs 4.7; P = .027) scores than the patients without documented dislocation. VAS pain was not significantly different between groups (36.4 vs 33.5; P = .269). The incidence of neurovascular injury was greater among those with documented dislocation (45.0% vs 13.6%; P = .040). Subgroup analysis found that patients with KD3-L injuries experienced a greater deficit in Tegner activity level than patients with KD3-M injuries (Δ: -3.4 vs -1.2; P = .006) and had an increased incidence of neurovascular injury (41.7% vs 11.1%; P = .042). Documented dislocation status was predictive of poorer IKDC (β = -2.15; P = .038) and Lysholm (β = -2.85; P = .007) scores. CONCLUSION Patients undergoing surgical management of KD3 injuries with true, documented KD had significantly worse clinical and functional outcomes than those with nondislocated joints at a mean 6.5-year follow-up. The current MLKI classification based solely on ligament involvement may be obscuring outcome research by not accounting for true dislocation.
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Affiliation(s)
- Andrew J Hughes
- Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, New York, USA
| | - Zachary I Li
- Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, New York, USA
| | - Sharif Garra
- Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, New York, USA
| | - Joshua S Green
- Frank H. Netter MD School of Medicine at Quinnipiac University, North Haven, Connecticut, USA
| | - Isabel Chalem
- Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, New York, USA
| | - Jairo Triana
- Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, New York, USA
| | - Laith M Jazrawi
- Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, New York, USA
| | - Michael J Medvecky
- Department of Orthopaedics & Rehabilitation, Yale School of Medicine, New Haven, Connecticut, USA
| | - Michael J Alaia
- Division of Sports Medicine, Department of Orthopedic Surgery, NYU Langone Health, New York, New York, USA
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Li ZI, Garra S, Eskenazi J, Montgomery SR, Triana J, Hughes AJ, Alaia MJ, Strauss EJ, Jazrawi LM, Campbell KA. Patients who undergo tibial tubercle anteromedialization with medial patellofemoral ligament reconstruction demonstrate similar rates of return to sport compared to isolated MPFL reconstruction. Knee Surg Sports Traumatol Arthrosc 2024; 32:371-380. [PMID: 38270287 DOI: 10.1002/ksa.12051] [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: 11/29/2023] [Accepted: 01/02/2024] [Indexed: 01/26/2024]
Abstract
PURPOSE To investigate the rate of return to sports and sport psychological readiness between patients who underwent isolated MPFLR (iMPFLR) compared to a matched cohort of patients who underwent MPFLR with anteromedializing tibial tubercle osteotomy (MPFLR/TTO). METHODS Patients who underwent primary MPFLR with or without TTO for recurrent patellar instability were retrospectively reviewed from 2012 to 2020 at a single institution. Preinjury sport and work information, Kujala, Tegner, Visual Analogue Score for pain, satisfaction and MPFL-Return to Sport after Injury (MPFL-RSI) score were collected. Two readers independently measured the tibial tuberosity-trochlear groove distance, Caton-Deschamps index and Dejour classification for trochlear dysplasia. Patients in iMPFLR and MPFLR/TTO groups were matched 1:1 on age, sex, body mass index and follow-up length. Multivariate regression analysis was performed to determine whether the MPFL-RSI was associated with a return to sport. RESULTS This study included 74 patients at mean follow-up of 52.5 months (range: 24-117). These groups returned to sport at similar rates (iMPFLR: 67.6%, MPFLR/TTO: 73.0%, not significant [ns]), though iMPFLR patients returned more quickly (8.4 vs. 12.8 months, p = 0.019). Rates of return to preinjury sport level were also similar (45.9% vs. 40.5%, ns). Patients with Dejour B/C took more time to return to sport compared to patients with mild/no trochlear pathology (13.8 vs. 7.9 months, p = 0.003). Increasing MPFL-RSI score was significantly predictive of the overall return to sport (odds ratio [OR]: 1.08, 95% confidence interval [CI] [1.03, 1.13], p < 0.001) and return to preinjury level (OR: 1.07, 95% CI [1.04, 1.13], p < 0.001). Most patients in iMPFLR and MPFLR/TTO groups resumed work (95.7% vs. 88.5%, ns), though iMPFLR patients who returned to preinjury work levels did so more quickly (1.7 vs. 4.6 months, p = 0.005). CONCLUSION Patients who underwent MPFLR with anteromedializing TTO demonstrated similar rates of return to sport and psychological readiness compared to an isolated MPFLR matched comparison group, though iMPFLRs returned more quickly. Patients with more severe trochlear pathology required more time to return to sports. LEVEL OF EVIDENCE Level III.
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Affiliation(s)
- Zachary I Li
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
| | - 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, Tel-Aviv University, Ramat Gan, Israel
| | - Jordan Eskenazi
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
| | - Samuel R Montgomery
- 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
| | - Andrew J Hughes
- 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
| | - Laith M Jazrawi
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
| | - Kirk A Campbell
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
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Li ZI, Green JS, Chalem I, Triana J, Rao N, Hughes AJ, Campbell KA, Jazrawi LM, Medvecky MJ, Alaia MJ. Patient-reported outcomes and return to pre-injury activities after surgical treatment of multi-ligamentous knee injuries in patients over 40-years-old: Average 5-years follow-up. Knee 2024; 46:89-98. [PMID: 38070381 DOI: 10.1016/j.knee.2023.11.014] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Revised: 11/16/2023] [Accepted: 11/24/2023] [Indexed: 02/20/2024]
Abstract
BACKGROUND Multi-ligamentous knee injuries (MLKI) are potentially devastating injuries, though existing prognostic research among older patients who sustain MLKI is limited. The purpose was to investigate clinical outcomes and rates of return to pre-injury activities following surgical treatment of MLKI in patients at least 40 years old. METHODS This study was a multi-center retrospective case series of patients who underwent surgical treatment for MLKI from 2013-2020 and were ≥ 40 years old at time of injury. Outcomes were assessed via e-mail and telephone using the International Knee Documentation Committee (IKDC) score, Lysholm score, Tegner activity scale, a satisfaction rating, and return to pre-injury sport and work surveys. Stepwise linear regression was used to assess the impact of preoperative characteristics on IKDC and Lysholm scores. RESULTS Of 45 patients eligible for inclusion, 33 patients (mean age: 48.6 years [range: 40-72]) were assessed at a mean follow-up of 59.1 months (range 24-133). The cohort reported a mean IKDC of 63.4 ± 23.5, Lysholm of 72.6 ± 23.6, and Tegner of 3.8 ± 2.0. There was a 41.2% rate of return to sports, and 82.1% returned to work. Documented knee dislocation was predictive of poorer IKDC (β:-20.05, p = 0.025) and Lysholm (β:-19.99, p = 0.030). Patients aged > 50 were more satisfied compared to those 40-50 years old (96.2 ± 4.9 vs 75.6 ± 23.3, p = 0.012). CONCLUSIONS Patients who sustained MLKI aged at least 40 at injury demonstrated fair clinical outcomes at a mean 5-year follow-up. Older patients who sustained MLKI reported a relatively high rate of return to work but were less likely to return to sports. LEVEL OF EVIDENCE IV, Case series.
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Affiliation(s)
- Zachary I Li
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, United States.
| | - Joshua S Green
- Frank H. Netter School of Medicine at Quinnipiac University, North Haven, CT, United States
| | - Isabel Chalem
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, United States
| | - Jairo Triana
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, United States
| | - Naina Rao
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, United States
| | - Andrew J Hughes
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, United States
| | - Kirk A Campbell
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, United States
| | - Laith M Jazrawi
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, United States
| | - Michael J Medvecky
- Department of Orthopaedics & Rehabilitation, Yale School of Medicine, New Haven, CT, United States
| | - Michael J Alaia
- Department of Orthopedic Surgery, NYU Langone Health, New York, NY, United States
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Guevel B, Njai A, Raboff A, Hillman A, Barton M, Kocher MS. Does Tibial Tuberosity Osteotomy Improve Outcomes When Combined With Medial Patellofemoral Ligament Reconstruction in the Presence of Increased Tibial Tuberosity-Trochlear Groove Distance? A Systematic Review and Meta-analysis. Orthop J Sports Med 2023; 11:23259671231195905. [PMID: 38107841 PMCID: PMC10722933 DOI: 10.1177/23259671231195905] [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: 05/01/2023] [Accepted: 05/19/2023] [Indexed: 12/19/2023] Open
Abstract
Background There has been recent debate regarding the optimal surgical management strategy for recurrent patellofemoral instability in the presence of an increased tibial tuberosity-trochlear groove (TT-TG) distance. In particular, performing a combined tibial tuberosity osteotomy (TTO) and medial patellofemoral ligament reconstruction (MPFLR) for patients with a TT-TG >20 mm has been questioned, with the hypothesis that an isolated MPFLR (iMPFLR) would be just as effective. Purpose To pool and compare outcomes after MPFLR+TTO versus iMPFLR in patients with a TT-TG >20 mm. Study Design Systematic review; Level of evidence, 4. Methods PubMed-MEDLINE, Embase, Web of Science, and Cochrane Central were searched, and a systematic review was performed. Included were studies that reported postoperative redislocation rates and/or functional outcome scores for patients with recurrent patellar instability and a TT-TG >20 mm who underwent either MPFLR+TTO or iMPFLR and had minimum 2-year follow-up data. Methodologic quality was assessed using the modified Coleman Methodology Score (mCMS). A proportional meta-analysis comparing redislocation, subjective instability, and total complication rates was performed, and mean postoperative functional outcome scores were pooled using a random-effects model with a restricted maximum likelihood estimator. Results In total, 1548 studies were screened, from which 13 were included for analysis. Of the 386 included patients (406 knees), 276 underwent MPFLR+TTO and 110 underwent iMPFLR. The mean mCMS was 61.3 ± 10.5 (range, 48-77). The pooled postoperative redislocation rate was 1.22% (95% CI, 0.22%-7%), with no significant difference between the study groups (P = .9995). The pooled complication rate was 10.17% (95% CI, 6.2%-16.3%) with no difference between groups (P = .9275), although the MPFLR+TTO group had higher heterogeneity in complication rates (I2 = 79.4%) compared with iMPFLR (I2 = 0%). There was no group difference in the pooled postoperative Lysholm scores (P = .5177), but patients who underwent iMPFLR had significantly higher postoperative Kujala scores compared with those who underwent MPFLR+TTO (P = .0283). Conclusion Even in the presence of previously indicative anatomic factors (TT-TG >20 mm), TTO combined with MPFLR does not seem to confer additional benefit compared with iMPFLR. This finding could be advantageous in minimizing the burden of additional surgery with its associated risks. The study findings should, however, be interpreted with caution given the heterogeneity of the studies.
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Affiliation(s)
- Borna Guevel
- Boston Children's Hospital, Boston, Massachusetts, USA
- Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
| | - Abdoulie Njai
- Boston Children's Hospital, Boston, Massachusetts, USA
- Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
| | - Aly Raboff
- Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
| | - Andrew Hillman
- Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
| | - Michael Barton
- Harvard T.H. Chan School of Public Health, Harvard University, Boston, Massachusetts, USA
| | - Mininder S. Kocher
- Boston Children's Hospital, Boston, Massachusetts, USA
- Harvard Medical School, Boston, Massachusetts, USA
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Li ZI, Triana J, Lott A, Rao N, Jazrawi T, Montgomery SR, Buldo-Licciardi M, Alaia MJ, Strauss EJ, Jazrawi LM, Campbell KA. Patients who undergo bilateral medial patellofemoral ligament reconstruction return to sport at a similar rate as those that undergo unilateral reconstruction. Knee Surg Sports Traumatol Arthrosc 2023; 31:4195-4203. [PMID: 37219546 DOI: 10.1007/s00167-023-07462-4] [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] [Received: 01/27/2023] [Accepted: 05/16/2023] [Indexed: 05/24/2023]
Abstract
PURPOSE Lateral patellar instability is a debilitating condition not only to athletes, but also to a wide range of highly active individuals. Many of these patients experience symptoms bilaterally, though it is unknown how these patients fair with return to sports following a second medial patellofemoral ligament reconstruction (MPFLR). The purpose of this study is to evaluate the rate of return to sport following bilateral MPFLR compared to a unilateral comparison group. METHODS Patients who underwent primary MPFLR with minimum 2-year follow-up were identified from 2014 to 2020 at an academic center. Those who underwent primary MPFLR of bilateral knees were identified. Pre-injury sport participation and Tegner score, Kujala score, Visual Analog Score (VAS) for pain, satisfaction, and MPFL-Return to Sport after Injury (MPFL-RSI) scale were collected. Bilateral and unilateral MPFLRs were matched in a 1:2 ratio based on age, sex, body mass index, and concomitant tibial tubercle osteotomy (TTO). A sub-analysis was performed regarding concomitant TTO. RESULTS The final cohort consisted of 63 patients, including 21 patients who underwent bilateral MPFLR, matched to 42 unilateral patients at mean follow-up of 47 ± 27 months. Patients who underwent bilateral MPFLR returned to sport at a rate of 62% at a mean of 6.0 ± 2.3 months, compared to a unilateral rate of 72% at 8.1 ± 4.2 months (n.s.). The rate of return to pre-injury level was 43% among bilateral patients and 38% in the unilateral cohort. There were no significant differences in VAS pain, Kujala, current Tegner, satisfaction, and MPFL-RSI scores between cohorts. Approximately half of those (47%) who failed to return to sport cited psychological factors and had significantly lower MPFL-RSI scores (36.6 vs 74.2, p = 0.001). CONCLUSION Patients who underwent bilateral MPFLR returned to sports at a similar rate and level compared to a unilateral comparison group. MPFL-RSI was found to be significantly associated with return to sport. LEVEL OF EVIDENCE III.
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Affiliation(s)
- Zachary I Li
- Department of Orthopedic Surgery, New York University Langone Health, 333 East 38th St, New York, NY, 10016, USA.
| | - Jairo Triana
- Department of Orthopedic Surgery, New York University Langone Health, 333 East 38th St, New York, NY, 10016, USA
| | - Ariana Lott
- Department of Orthopedic Surgery, New York University Langone Health, 333 East 38th St, New York, NY, 10016, USA
| | - Naina Rao
- Department of Orthopedic Surgery, New York University Langone Health, 333 East 38th St, New York, NY, 10016, USA
| | - Taylor Jazrawi
- Department of Orthopedic Surgery, New York University Langone Health, 333 East 38th St, New York, NY, 10016, USA
| | - Samuel R Montgomery
- Department of Orthopedic Surgery, New York University Langone Health, 333 East 38th St, New York, NY, 10016, USA
| | - Michael Buldo-Licciardi
- Department of Orthopedic Surgery, New York University Langone Health, 333 East 38th St, New York, NY, 10016, USA
| | - Michael J Alaia
- Department of Orthopedic Surgery, New York University Langone Health, 333 East 38th St, New York, NY, 10016, USA
| | - Eric J Strauss
- Department of Orthopedic Surgery, New York University Langone Health, 333 East 38th St, New York, NY, 10016, USA
| | - Laith M Jazrawi
- Department of Orthopedic Surgery, New York University Langone Health, 333 East 38th St, New York, NY, 10016, USA
| | - Kirk A Campbell
- Department of Orthopedic Surgery, New York University Langone Health, 333 East 38th St, New York, NY, 10016, USA
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9
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Hysing-Dahl T, Magnussen LH, Faleide AGH, Inderhaug E. Feasibility of return to sports assessment 6 months after patellar instability surgery. BMC Musculoskelet Disord 2023; 24:662. [PMID: 37596551 PMCID: PMC10439663 DOI: 10.1186/s12891-023-06767-2] [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: 03/20/2023] [Accepted: 07/29/2023] [Indexed: 08/20/2023] Open
Abstract
BACKGROUND The evidence regarding the usefulness of assessment tools to support decisions of return-to-sport after surgery for patellar instability is scarce. The purpose of this study was therefore to explore the feasibility of functional tests assessing readiness for return-to-sport six months after patellar stabilizing surgery. However, there is little evidence on what a functional assessment should include to support these decisions following surgery for patellar instability. Therefore the purpose of this study was to explore the feasibility of functional tests assessing readiness for return-to-sport six months after patellar stabilizing surgery. METHODS In this cross-sectional study a prospective cohort of 78 patients were subjected to a range of return-to-sport readiness tests at six months after surgery for patellar instability with an "a la carte" approach. Lower Quarter Y-Balance Test (YBT-LQ), single-legged hop tests and isokinetic strength tests were performed. In addition, self-reported function was measured with the Banff Patellofemoral Instability Instrument 2.0 (BPII) and Norwich Patellar Instability score (NPI). Return-to-sport clearance criteria were defined as: ≤4 cm YBT-LQ anterior reach difference between legs, leg-symmetry-index (LSI) ≥ 95% in the YBT-LQ composite score, mean sum score LSI ≥ 85% of all single-leg hop tests and LSI ≥ 90% in isokinetic quadriceps strength. RESULTS Sixty-four patients (82%) were able to complete all functional tests, while only eleven (14%) patients were deemed ready for return-to-sport, passing all return-to-sport clearance criteria. Patients with bilateral problems demonstrated worse performance in the contralateral leg, which resulted in higher LSI scores compared to individuals with unilateral instability. A supplementary finding was that the extent of surgery (MPFL-R only versus combined surgery) did not predict and mainly did not affect self-reported function or functional performance at the follow-up. CONCLUSION The functional assessment used in the current study seems feasible to conduct at six months after patellar stabilizing surgery. However, current suggested clearance standards and the use of leg-symmetry-index seems inappropriate for patients with patellar instability. Therefore, further exploration of appropriate tests and return-to-sport clearance criteria is justified. TRIAL REGISTRATION clinicaltrial.gov, NCT05119088. Registered 12.11.2021 - Retrospectively registered, https://clinicaltrials.gov/ct2/show/NCT05119088 .
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Affiliation(s)
- Trine Hysing-Dahl
- Haraldsplass Deaconess Hospital, V/Avdeling for Rehabiliteringstjenester Postboks 6165, Bergen, 5892, Norway.
- University of Bergen, Bergen, Norway.
| | - L H Magnussen
- Western Norway University of Applied Science, Haugesund, Norway
| | - A G H Faleide
- Haraldsplass Deaconess Hospital, V/Avdeling for Rehabiliteringstjenester Postboks 6165, Bergen, 5892, Norway
| | - E Inderhaug
- Haukeland University Hospital, Bergen, Norway
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10
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Edwards D, Casas-Cordero JP, Cerda D, Alonso J, Cornejo F, Calvo R, Zelaya G. Isolated Medial Patellofemoral Ligament Reconstruction in Patellar Instability: Does the Distance Between Tibial Tuberosity-Trochlear Groove Make a Difference? Indian J Orthop 2023; 57:1203-1208. [PMID: 37525739 PMCID: PMC10386993 DOI: 10.1007/s43465-023-00906-6] [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: 11/05/2022] [Accepted: 05/06/2023] [Indexed: 08/02/2023]
Abstract
Introduction Medial patellofemoral ligament reconstruction (MPFLR) is used in most patellar instability surgeries, there is controversy on adding a tibial tuberosity osteotomy (TTO). Objective To describe the results of isolated MPFLR in patellar instability according to the Tibial Tuberosity-Trochlear Groove distance (TT-TG). Methods Retrospective study of patients with patellar instability with a mature skeleton in one center between 2016 and 2021, using isolated MPFLR. Patients with incomplete clinical and/or radiological records and less than one year follow-up were excluded. Pre-surgical demographic and radiological data (TT-TG, Caton-Deschamps (CD) index, patellar tilt, trochlear dysplasia) were recorded. Patients were divided into three groups according to TT-TG distance (Group 1: < 17 mm, Group 2: 17-19, Group 3: ≥ 20 mm). A pre and post-surgical Kujala score was performed. Local complications, satisfaction, recurrence and/or reintervention were recorded. Pre-surgical variables between groups, intra and inter-group Kujala differences were compared using Bartlett's test. Consent from the patients and approval from the local ethics committee were obtained. Results 67 patients met the selection criteria, mean age of 23 years, 70% were women. There were no pre surgical, radiological nor follow-up differences between the groups (average 27 months). Pre and post-surgical Kujala score, respectively: Group 1: 37-78, Group 2: 37-78, Group 3: 39-79. All groups had a significant improvement (p < 0.05), there were no significant differences in improvement between groups (p > 0.05). There were three patients with a redislocation episode, all in group 1. One patient had a mobilization under anesthesia due to an arthrofibrosis (Group 2). 97% of all cases reported being satisfied. Conclusion Isolated MPFLR in patellar instability presents a functional improvement, with a low rate of complications and failure, regardless of the pre surgical TT-TG. Supplementary Information The online version contains supplementary material available at 10.1007/s43465-023-00906-6.
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Affiliation(s)
- Diego Edwards
- Knee Team, La Florida Hospital, Froilán Roa 6542, La Florida, Santiago, Chile
- Department of Traumatology, Alemana Clinic, Santiago, Chile
| | | | - Daniel Cerda
- Knee Team, La Florida Hospital, Froilán Roa 6542, La Florida, Santiago, Chile
| | - Julián Alonso
- Knee Team, La Florida Hospital, Froilán Roa 6542, La Florida, Santiago, Chile
| | | | - Rafael Calvo
- Department of Traumatology, Alemana Clinic, Santiago, Chile
| | - Gerardo Zelaya
- Knee Team, La Florida Hospital, Froilán Roa 6542, La Florida, Santiago, Chile
- Head of Unit Knee Team, La Florida Hospital, Santiago, Chile
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11
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Xiong Y, Wang D, Li S, Li X, Lin Y, Li J, Li Q. Adductor Canal Block Combined with General Analgesia for Patients with Recurrent Patellar Dislocation Undergoing "3-in-1" Procedure Surgery: A Prospective Randomized Controlled Trial. Orthop Surg 2023; 15:1636-1644. [PMID: 37194219 PMCID: PMC10235176 DOI: 10.1111/os.13706] [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: 09/11/2022] [Revised: 02/05/2023] [Accepted: 02/19/2023] [Indexed: 05/18/2023] Open
Abstract
OBJECTIVE Patellar dislocation is a common injury in sports medicine. While surgical treatment is an important option, pain is severe after surgery. This study compared the analgesic effect and early rehabilitation quality between adductor canal block combined with general analgesia (ACB + GA) and single general analgesia (SGA) after recurrent patellar dislocation (RPD) for "3-in-1" procedure surgery. METHODS From July 2018 to January 2020, a prospective randomized controlled trial was conducted in analgesia management after RPD for "3-in-1" procedure surgery. The 40 patients in the experimental group received ACB (0.3% ropivacaine 30 mL) + GA, while the 38 patients in the control group received SGA. Patients in both groups received "3-in-1" procedure surgery, standardized anesthesia, and analgesia during hospitalization. The outcomes included the visual analog scale (VAS), quadriceps strength, Inpatient Satisfaction Questionnaire (IPSQ), Lysholm scores, and Kujala scores. Total rescue analgesic consumption and adverse events were also recorded. One-way analysis of variance (ANOVA) was used to compare continuous variables between groups and chi-square or Fisher's exact tests were used to compare count data. Nonparametric Kruskal-Wallis H tests evaluated ranked data. RESULTS No significant differences in resting VAS scores were observed at 8, 12, and 24 h postoperatively. However, the flexion and moving VAS scores of the ACB + GA group were significantly lower than those of the SGA group (p < 0.05). Meanwhile, the first triggering of rescue analgesics was advanced in the SGA group (p < 0.0001), and the dose of opioid analgesics was significantly higher (p < 0.0001). The quadriceps strength of the ACB + GA group was higher than that of the SGA group at 8 h postoperatively. The IPSQ of the ACB + GA group was significantly higher 24 h postoperatively. We observed no significant differences in Lysholm and Kujala scores between the two groups at 3 months after surgery. CONCLUSIONS Early analgesia management of ACB + GA showed excellent analgesia effectiveness and a positive hospitalization experience for RPD patients undergoing "3-in-1" procedure surgery. Moreover, this management was good for early rehabilitation.
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Affiliation(s)
- Yan Xiong
- Department of Orthopaedics, Orthopedic Research Institute, West China HospitalSichuan UniversityChengduPeople's Republic of China
| | - Duan Wang
- Department of Orthopaedics, Orthopedic Research Institute, West China HospitalSichuan UniversityChengduPeople's Republic of China
| | - Shu Li
- Department of Orthopaedics, Orthopedic Research Institute, West China HospitalSichuan UniversityChengduPeople's Republic of China
| | - Xuejie Li
- Department of AnesthesiologyWest China Hospital of Sichuan UniversityChengduPeople's Republic of China
| | - Yanjun Lin
- Department of AnesthesiologyWest China Hospital of Sichuan UniversityChengduPeople's Republic of China
| | - Jian Li
- Department of Orthopaedics, Orthopedic Research Institute, West China HospitalSichuan UniversityChengduPeople's Republic of China
| | - Qi Li
- Department of Orthopaedics, Orthopedic Research Institute, West China HospitalSichuan UniversityChengduPeople's Republic of China
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12
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Flores GW, de Oliveira DF, Ramos APS, Sanada LS, Migliorini F, Maffulli N, Okubo R. Conservative management following patellar dislocation: a level I systematic review. J Orthop Surg Res 2023; 18:393. [PMID: 37254200 DOI: 10.1186/s13018-023-03867-6] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2023] [Accepted: 05/21/2023] [Indexed: 06/01/2023] Open
Abstract
BACKGROUND Patellar instability is a common and disabling clinical condition. Treatment of acute primary patellar dislocation aims to reduce the risk of recurrence or painful subluxation and improve function. However, the actual clinical efficacy of any management modality following an acute dislocation has never been demonstrated in prospective or retrospective studies, and the optimal way in which the various management modalities should be used is at best unclear. METHODS A search was conducted in PubMed, Bireme and Embase databases. Inclusion criteria followed the acronym PICOS, (P) subjects with patellar instability, (I) therapeutic interventions, (C) placebo or control or surgical treatments, (O) rate of dislocations and function, and (S) clinical trials. The Medical Subject Headings (MeSH) terms used were: (("patellar instability") OR ("patellar dislocation")) AND ((physiotherapy) OR (rehabilitation) OR ("conservative treatment") OR (therapy) OR (therapeutic)). The risk of bias was analysed using the PeDRO scale. RESULTS Seven randomized controlled trials including 282 patients were considered. The quality of studies detailing the results of conservative treatment was higher than that of surgical procedures, but all studies have relatively low methodological quality. Four studies compared physiotherapeutic interventions with surgical procedures, and three studies compared conservative intervention techniques. CONCLUSION An unstructured lower limb physical therapy programme evidences similar outcomes to specific exercises. Surgical management is associated with a lower rate of re-dislocation; however, whether surgery produces greater functional outcomes than conservative management is still unclear. The use of a knee brace with a limited range of motion, stretching and neuromuscular exercises are the most commonly recommended physiotherapy methodologies.
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Affiliation(s)
- Gustavo Wickert Flores
- Department of Physiotherapy, University of the State of Santa Catarina, Florianópolis, SC, Brazil
| | | | - Ana Paula Silveira Ramos
- Physiotherapy Department, University of South of Santa Catarina (Unisul), Florianópolis, SC, Brazil
| | - Luciana Sayuri Sanada
- Department of Physiotherapy, University of the State of Santa Catarina, Florianópolis, SC, Brazil
| | - Filippo Migliorini
- Department of Orthopaedic, Trauma, and Reconstructive Surgery, RWTH University Hospital, Pauwelsstraße 30, 52074, Aachen, Germany.
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081, Baronissi, SA, Italy.
- Department of Orthopaedics and Trauma Surgery, Academic Hospital of Bolzano (SABES-ASDAA), 39100, Bolzano, Italy.
| | - Nicola Maffulli
- Department of Medicine, Surgery and Dentistry, University of Salerno, 84081, Baronissi, SA, Italy
- School of Pharmacy and Bioengineering, Keele University Faculty of Medicine, Stoke on Trent, ST4 7QB, England, UK
- Barts and the London School of Medicine and Dentistry, Centre for Sports and Exercise Medicine, Mile End Hospital, Queen Mary University of London, London, E1 4DG, England, UK
| | - Rodrigo Okubo
- Department of Physiotherapy, University of the State of Santa Catarina, Florianópolis, SC, Brazil
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13
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Lampros RE, Tanaka MJ. Return to Play Considerations After Patellar Instability. Curr Rev Musculoskelet Med 2022; 15:597-605. [PMID: 36367684 PMCID: PMC9789273 DOI: 10.1007/s12178-022-09792-1] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 09/14/2022] [Indexed: 11/13/2022]
Abstract
PURPOSE OF REVIEW To discuss the treatment options and rehabilitation protocols after non-operative and operative treatment of patellar instability, and to discuss expected return to play outcomes and functional performance with non-operative and operative treatment of patellar instability. RECENT FINDINGS A criterion-based program assessing range of motion, joint effusion, strength, neuromuscular control, proprioception, agility, and power are critical measures to assess when rehabilitating this population. A series of functional tests including quadriceps strength testing, single-limb hop testing, lateral step-down test, the side hop test, the lateral leap and catch test, the Y-balance test, and the depth jump should be considered when determining an athlete's return to sport clearance. These objective measures combined with psychological readiness and a comprehensive understanding of the sports-specific tasks required for participation should be considered when evaluating an athlete's ability to safely and successfully return to sport. We discuss rehabilitation management when working with non-operative and operative management of patellar instability and provide considerations for clinicians working with these athletes to facilitate safe return to sport.
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Affiliation(s)
- Rachel E Lampros
- Sports Physical Therapy, Massachusetts General Hospital, Boston, MA, USA
| | - Miho J Tanaka
- Department of Orthopaedic Surgery, Massachusetts General Hospital, Harvard Medical School, 175 Cambridge Street, Suite 400, Boston, MA, 02114, USA.
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14
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Dennis ER, Marmor WA, Shubin Stein BE. Combined MPFL Reconstruction with Tibial Tubercle Osteotomy and Repair of Patellar Cartilage Defect with Particulated Juvenile Articular Cartilage. JBJS Essent Surg Tech 2022; 12:e21.00013. [PMID: 36743281 PMCID: PMC9889293 DOI: 10.2106/jbjs.st.21.00013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Medial patellofemoral ligament (MPFL) reconstruction with tibial tubercle osteotomy (TTO) and particulated juvenile articular cartilage (PJAC) grafting can be performed in combination for the treatment of recurrent patellar instability with associated patellar cartilaginous defects. Description Preoperative planning is an essential component for this procedure. Measurement of the tibial tubercle to trochlear groove (TT-TG) distance and the Caton-Deschamps index (CDI) allows for determination of the degree of medial and anterior translation and helps to identify whether distalization is necessary. The procedure begins with a thorough examination under anesthesia to determine range of motion, patellar tracking, translation, and tilt. A diagnostic arthroscopy is performed, at which time patellar tracking is again assessed and the patellar and trochlear cartilage are evaluated. A medial parapatellar incision is made, and the layer between the capsule and retinaculum is identified. This layer will serve as the location for the MPFL graft passage. The medial patella is decorticated to prepare for graft fixation. The patella is then everted, and the cartilaginous defect is prepared and sized. The PJAC graft is prepared on the back table based on these measurements. The MPFL graft is then anchored to the decorticated medial patella. Attention is then turned to performing the TTO. The patellar tendon is isolated and protected. The osteotomy shingle is created with a combination of sagittal saw and osteotomes, followed by shingle translation and fixation. Attention is then turned to performing the MPFL graft fixation on the femur. An incision is made, the area of the sulcus between the medial epicondyle and adductor tubercle is identified, and a pin is placed. Graft isometry is assessed, pin placement is confirmed, and a socket is created. After thorough irrigation, the patella is then everted and the PJAC graft is implanted and set with fibrin glue. Finally, the MPFL graft is passed through the previously identified layer and docked into the medial femur at its isometric point. Alternatives Nonoperative treatment of first-time patellar instability can often include physical therapy, bracing, and activity modification. However, recurrence rates can be high, especially in a subset of high-risk patients with characteristics such as age of <25 years, trochlear dysplasia, patella alta, and coronal plane malalignment. For patients with recurrent patellar instability, a well-executed MPFL reconstruction restores stability while the TTO serves to unload the lateral and/or inferior patellar cartilage and correct osseous malalignment. Additional techniques, such as a distal femoral osteotomy and trochleoplasty, have been suggested to address patellar tracking and trochlear dysplasia. For patients who have sustained cartilaginous injury from their previous dislocations, PJAC can be utilized to restore the patellofemoral cartilage. Alternative operative treatments of cartilaginous defects include matrix-induced autologous chondrocyte implantation (MACI), mosaicplasty, osteochondral allograft, microfracture, and-in later stages of disease-patellofemoral arthroplasty. Rationale The MPFL is an important medial stabilizer in the knee, with high rates of injury in patients who have experienced patellar instability. When an MPFL reconstruction is combined with a TTO, it can stabilize the patella while simultaneously correcting osseous malalignment and unloading the patellofemoral joint. Additionally, use of PJAC is advantageous for patients with patellar chondral defects because it is a single-stage technique, has low technical difficulty, and can be customized to accommodate large lesions. Expected Outcomes MPFL in combination with TTO and PJAC provides patellar stabilization and overall improvements in pain and function, with low rates of recurrent instability. A recent study by Franciozi et al. showed significant improvement in functional outcome scores at a minimum of 2 years with no recurrent subluxations or dislocations1. Another study by Krych et al. showed an 83% rate of return to sport in patients who underwent MPFL reconstruction combined with TTO2. With respect to PJAC grafts, a study by Grawe et al. assessed the maturation of PJAC implanted into patellar chondral defects, demonstrating that the matured grafts paralleled the characteristics of the surrounding native cartilage. In addition, the authors reported that 73% of patients who completed follow-up magnetic resonance imaging at 2 years postoperatively had good defect fill, defined as >66%3. Important Tips A lateral release may be necessary if the patella is unable to be everted parallel with the table. Typically, 80% of patients with instability do not need a lateral release, whereas 80% of patients with malalignment and isolated patellar osteoarthritis do need a release.MPFL graft isometry should be assessed by manually placing the patella in the center of the trochlea and flexing the knee to roughly 70°. The graft should slacken in subsequent deeper flexion and should never tighten.When customizing the TTO to obtain the necessary anatomic alignment, the surgeon can achieve additional medialization by dropping their hand to create a flatter cut, while additional anteriorization can be created with a steeper cut.Once the cartilage defect has been prepared and measured, a mold can be created to allow for concomitant PJAC preparation on the back table earlier in the procedure. Acronyms and Abbreviations TT-TG = tibial tubercle to trochlear groove distanceMPFL = medial patellofemoral ligamentTTO = tibial tubercle osteotomyPJAC = particulated juvenile articular cartilageMACI = matrix-induced autologous chondrocyte implantationOR = operating roomIV = intravenousK-wires = Kirschner wiresCPM = continuous passive motionMRI = magnetic resonance imagingOA = osteoarthritisASA = acetylsalicylic acid (aspirin)DVT = deep vein thrombosisPPX = prophylaxisNWB = non-weight-bearingFWB = full weight-bearingPOD = postoperative day.
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15
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Molony JT, Greenberg EM, Weaver AP, Racicot M, Merkel D, Zwolski C. Rehabilitation After Pediatric and Adolescent Knee Injuries. Clin Sports Med 2022; 41:687-705. [DOI: 10.1016/j.csm.2022.05.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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16
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Hao K, Feng A, Kong L, Wang F. Quality of life following medial patellofemoral ligament reconstruction combined with medial tibial tubercle transfer in patients with recurrent patellar dislocation: a retrospective comparative study. J Orthop Surg Res 2022; 17:416. [PMID: 36104806 PMCID: PMC9476691 DOI: 10.1186/s13018-022-03310-2] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/20/2022] [Accepted: 09/03/2022] [Indexed: 11/10/2022] Open
Abstract
Abstract
Background
Because the patients undergoing medial patellofemoral ligament reconstruction (MPFLr) combined with medial tibial tubercle transfer (TTT) procedure are usually young and active, the quality of life (QoL) is also an important prognostic factor for patients with recurrent patellar dislocation. Assessing QoL can provide more useful and accurate evidence for the effects of this procedure. This study aimed to evaluate QoL following MPFLr combined with TTT, compared with isolated MPFLr (iMPFLr).
Methods
Fifty-one patients who underwent iMPFLr + TTT and 48 patients who underwent iMPFLr were included. Clinical evaluation included QoL (EQ-5D-5L and EQ-5D VAS), functional outcomes (Kujala, Lysholm and Tegner activity scores), physical examinations (patellar apprehension test and range of motion) and redislocation rates. Radiological evaluation included patellar tilt angle and bisect offset. These preoperative and postoperative results were compared between groups at baseline and the final follow-up. The paired and independent t tests were used for the data following a normal distribution. Otherwise, the Wilcoxon and Mann–Whitney U tests were used to analyze the differences. Categorical variables were compared by chi-square or Fisher’s exact test.
Results
All of the QoL (EQ-5D-5L and EQ-5D VAS), clinical results and radiological outcomes significantly improved in both groups at the final follow-up, with no significant differences between groups. There was no significant difference in five dimensions of EQ-5D at the final follow-up, although percentages of people with problems of mobility and pain/discomfort were higher in the MPFLr + TTT group. Female patients had lower EQ-5D index and EQ-5D VAS compared with male patients in both groups at the final follow-up, but there was only a significant difference in the EQ-5D VAS.
Conclusions
Both MPFLr + TTT and iMPFLr groups obtained similar and satisfactory improvements in the QoL, clinical results and radiological outcomes, indicating that MPFLr combined with TTT is a safe and effective procedure, which can significantly improve the QoL for patients with recurrent patellar dislocation in cases of pathologically lateralized TT. However, female patients obtained lower QoL than males.
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Sasaki E, Kimura Y, Sasaki S, Yamamoto Y, Tsuda E, Ishibashi Y. Clinical outcomes of medial patellofemoral ligament reconstruction using FiberTape and knotless SwiveLock anchors. Knee 2022; 37:71-79. [PMID: 35696836 DOI: 10.1016/j.knee.2022.05.011] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Revised: 04/05/2022] [Accepted: 05/27/2022] [Indexed: 02/02/2023]
Abstract
BACKGROUND We aimed to prospectively investigate the clinical outcomes of medial patellofemoral ligament (MPFL) reconstruction using polyester high-strength suture tape with knotless anchors. METHOD Forty-three patients (65 knees) were followed for at least 1 year postoperatively, with 27 patients (43 knees) followed for 2 years postoperatively. All patients underwent MPFL reconstruction using polyester high-strength suture tape (FiberTape®; Arthrex) with knotless anchors (SwiveLock®; Arthrex). Repeated dislocation and residual patellar apprehension signs were recorded, and congruence and tilting angles were measured. Changes in Knee Injury and Osteoarthritis Outcome Scale (KOOS) scores and their associations with the preoperative tibial tubercle-trochlear groove (TT-TG) distance were analyzed. RESULTS No repeat dislocations (0%) were observed. One (2.4%) residual positive patellar apprehension sign was noted. The mean tilting angle decreased from 24.8° to 10.7° (P < 0.001), and the mean congruence angle decreased from 24.9° to 4.3° (P < 0.001). At 2 years follow up, all KOOS subscales had improved: pain (92.0 ± 12.9), symptoms (90.2 ± 11.9), activities of daily living (95.7 ± 7.3), sports activity (85.7 ± 16.9), quality of life (87.7 ± 12.9), and patellofemoral (89.0 ± 9.6) outcomes. KOOS subscale scores improved regardless of the preoperative TT-TG distance (21.1 ± 3.5 mm; range, 13.8-29.9 mm). CONCLUSIONS MPFL reconstruction using FiberTape and knotless SwiveLock anchors was performed without sacrificing autologous tissue. No recurrent patellar dislocation was observed during the 2-year follow up period. All KOOS subscale scores improved using FiberTape and SwiveLock anchors in MPFL reconstruction.
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Affiliation(s)
- Eiji Sasaki
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan.
| | - Yuka Kimura
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Shizuka Sasaki
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yuji Yamamoto
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Eiichi Tsuda
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
| | - Yasuyuki Ishibashi
- Department of Orthopaedic Surgery, Hirosaki University Graduate School of Medicine, Hirosaki, Japan
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18
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Outcomes and reoperation rates after tibial tubercle transfer and medial patellofemoral ligament reconstruction: higher revision stabilization in patients with trochlear dysplasia and patella alta. Knee Surg Sports Traumatol Arthrosc 2022; 30:2227-2234. [PMID: 34743233 DOI: 10.1007/s00167-021-06784-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/23/2021] [Accepted: 10/25/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE To determine the reoperation rate, risk factors for reoperation, and patient-reported outcomes after isolated or combined tibial tubercle transfer and medial patellofemoral ligament reconstruction, for patellofemoral instability surgery. METHODS Patient's records who underwent medial patellofemoral ligament reconstruction and/or tibial tubercle transfer for patellar instability by 35 surgeons from 2002 to 2018 at a single academic institution were retrospectively reviewed using CPT codes. Four-hundred-and-eighty-six patients were identified. Radiographic measurements, demographic parameters, and subsequent revision procedures and their indications were identified. A modified anterior knee pain survey was conducted by mail and with follow-up phone survey. RESULTS The overall rate of reoperation was 120/486 (24.7%). The most common cause for reoperation was removal of hardware 42/486 (8.6%). The rate of reoperation for isolated medial patellofemoral ligament reconstruction 43/226 (19%) was lower than that of isolated tibial tubercle transfer 45/133 (33.8%) or a combined procedure 32/127 (25.2%) (P = 0.007). Woman had a higher rate of reoperation (29.4%) compared to men (15.9%) (P = 0.002). Patients at risk for a revision stabilization procedure included those with severe trochlear morphology (C or D) (6.1%) and those with Caton-Deschamps index > 1.3 (7.3%). Patients who underwent reoperation of any kind had poorer patient-reported outcomes. CONCLUSION The overall reoperation rate after patellofemoral instability surgery remains high, and any reoperation portends worse patient-reported outcomes. Re-operations for instability are more likely in patients with trochlear dysplasia and patella alta and may benefit from more aggressive initial treatment, such as medial patellofemoral ligament reconstruction and tibial tubercle transfer in combination. Using the results of this study, surgeons will be able to engage in meaningful discussion with patients to counsel patients on expectations postoperatively. LEVEL OF EVIDENCE IV.
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Meynard P, Malatray M, Sappey-Marinier E, Magnussen RA, Bodiou V, Lustig S, Servien E. Medial patellofemoral ligament reconstruction for recurrent patellar dislocation allows a good rate to return to sport. Knee Surg Sports Traumatol Arthrosc 2022; 30:1865-1870. [PMID: 34846539 DOI: 10.1007/s00167-021-06815-1] [Citation(s) in RCA: 8] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/15/2021] [Accepted: 11/17/2021] [Indexed: 10/19/2022]
Abstract
PURPOSE Recurrent patellar dislocation is a frequent knee disorders in young, active patients. Medial patellofemoral ligament reconstruction (MPFLR) can restore knee stability and function, but the rate of return to sports is less clear. The aim of this study was to evaluate rate of return to sport following treatment of recurrent patellar dislocation with isolated MPFLR. METHODS Between 2011 and 2018, 113 patients with recurrent patellar dislocation were treated with isolated MPFLR at an academic center. Pre-injury sports participation and Tegner score, pre-operative subjective IKDC score, time to return to sports, and post-operative Tegner and subjective IKDC scores were collected, with a minimum of follow-up of 2 years. RESULTS One hundred and three patients (91%) were evaluated at a mean of 4.5 ± 2.5-year post-operative. 92 patients (89%) participated in sports prior to onset of patellar instability. At final follow-up, 84 of these 92 patients (91%) were able to return to sports. The mean time from surgery to return to sports was 10.4 ± 8.6 months (range: 2-48 months). 62 patients (67%) returned to the same (50 patients) or higher (12 patients) level. 22 patients (26%) returned at a lower level. 19 of these patients attributed this decreased participation to ongoing knee problems. The median Tegner score was noted to decrease from 5 pre-injury to 4 post-operatively (p = 0.02). CONCLUSION Isolated MPFL reconstruction allowed return to pre-injury sports in 91% of patients, with 67% of patients returning to the same or higher level than pre-injury. Mean time to return to sports was 10 months and post-operative Tegner score was noted to be modestly decreased from pre-injury level. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Pierre Meynard
- Department of Orthopedic Surgery and Sports Medicine, Croix Rousse Hospital, Civil Hospices of Lyon, FIFA Medical Center of Excellence, 103 bvd de la croix-rousse, 69004, Lyon, France.
| | - Matthieu Malatray
- Department of Orthopedic Surgery and Sports Medicine, Croix Rousse Hospital, Civil Hospices of Lyon, FIFA Medical Center of Excellence, 103 bvd de la croix-rousse, 69004, Lyon, France
| | - Elliot Sappey-Marinier
- Department of Orthopedic Surgery and Sports Medicine, Croix Rousse Hospital, Civil Hospices of Lyon, FIFA Medical Center of Excellence, 103 bvd de la croix-rousse, 69004, Lyon, France
| | - Robert A Magnussen
- Department of Orthopaedics, OSU Sports Medicine Research Institute, The Ohio State University, Columbus, OH, USA
| | - Victor Bodiou
- Department of Orthopedic Surgery and Sports Medicine, Croix Rousse Hospital, Civil Hospices of Lyon, FIFA Medical Center of Excellence, 103 bvd de la croix-rousse, 69004, Lyon, France
| | - Sébastien Lustig
- Department of Orthopedic Surgery and Sports Medicine, Croix Rousse Hospital, Civil Hospices of Lyon, FIFA Medical Center of Excellence, 103 bvd de la croix-rousse, 69004, Lyon, France.,LBMC UMR T 9406, Laboratory of Chock Mechanics and Biomechanics, Claude Bernard Lyon 1 University, 69100, Villeurbanne, France
| | - Elvire Servien
- Department of Orthopedic Surgery and Sports Medicine, Croix Rousse Hospital, Civil Hospices of Lyon, FIFA Medical Center of Excellence, 103 bvd de la croix-rousse, 69004, Lyon, France.,LIBM-EA 7424, Interuniversity Laboratory of Biology of Mobility, Claude Bernard Lyon 1 University, 69100, Villeurbanne, France
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Patel S, Lavoie-Gagne O, Mehta N, Farah G, Korrapati A, Forsythe B. Patellar fracture among elite-level European soccer players: 4-year case-control cohort analysis of return to play, re-injury, and player performance. PHYSICIAN SPORTSMED 2022; 51:275-284. [PMID: 35587816 DOI: 10.1080/00913847.2022.2077087] [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: 10/18/2022]
Abstract
OBJECTIVES There is a paucity of literature investigating the relationship between patellar fracture and player performance of professional soccer players following return to play (RTP). Our goal is to determine the rate of RTP, time to RTP, and effect on player performance following patellar fracture. METHODS Twenty-one elite-level European professional soccer players who sustained a patellar fracture between 1999 and 2018 were identified via a publicly accessible database. Athletes with patellar fracture were matched to controls by age, height, years played in the league, season of injury, and position. Change in performance metrics between one season prior to injury and the following four seasons after injury were compared. RESULTS Players with patellar fracture were absent for a mean 207.95 ± 135.55 days and 16.81 ± 31.79 games. Fifteen (71%) players returned to play after injury with 67% returning within 1 season after injury. Injured players did not demonstrate significant change in performance metrics at any of the follow-up timepoints compared to control. Subgroup analysis showed that attackers recorded approximately 1200 fewer minutes played per season than pre-injury levels 2 seasons following injury, significantly fewer (p < 0.05) than the control cohort recording similar minutes per season throughout the study period. Midfielders and defenders demonstrated similar fluctuations in performance to the control cohort for both field time and performance metrics (p > 0.05). CONCLUSION Seventy-one percent of players RTP after patellar fracture with an associated absence of 7 months and 17 missed games. Overall, injured players did not demonstrate a significant decline in performance as demonstrated by games played, total minutes played per season, minutes per game, assists, and goals 1 season after injury. Attackers played fewer minutes during the season of and 2 seasons after the initial injury.
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Affiliation(s)
- Sumit Patel
- Department of Orthopaedic Surgery, Western Michigan University, Homer Stryker MD School of Medicine, Kalamazoo, MI, USA
| | - Ophelie Lavoie-Gagne
- Harvard Combined Orthopaedic Surgery Program, Harvard Medical School, Boston, MA, USA
| | - Nabil Mehta
- Department of Orthopaedic Surgery, Midwest Orthopaedics at Rush, Chicago, IL, USA
| | - Ghassan Farah
- Department of Orthopaedic Surgery, Midwest Orthopaedics at Rush, Chicago, IL, USA
| | - Avinaash Korrapati
- Department of Orthopaedic Surgery, Midwest Orthopaedics at Rush, Chicago, IL, USA
| | - Brian Forsythe
- Department of Orthopaedic Surgery, Midwest Orthopaedics at Rush, Chicago, IL, USA
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Watson R, Sullivan B, Stone AV, Jacobs C, Malone T, Heebner N, Noehren B. Lateral Patellar Dislocation: A Critical Review and Update of Evidence-Based Rehabilitation Practice Guidelines and Expected Outcomes. JBJS Rev 2022; 10:01874474-202205000-00004. [PMID: 35748823 DOI: 10.2106/jbjs.rvw.21.00159] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022]
Abstract
» Nonoperative treatment of a lateral patellar dislocation produces favorable functional results, but as high as 35% of individuals experience recurrent dislocations. » Medial patellofemoral ligament reconstruction is an effective treatment to prevent recurrent dislocations and yield excellent outcomes with a high rate of return to sport. » Both nonoperative and postoperative rehabilitation should center on resolving pain and edema, restoring motion, and incorporating isolated and multijoint progressive strengthening exercises targeting the hip and knee. » Prior to return to sports, both functional and isolated knee strength measurements should be used to determine leg symmetry strength and to utilize patient-reported outcome measures to assess the patient's perceived physical abilities and patellofemoral joint stability.
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Affiliation(s)
- Richard Watson
- Department of Physical Therapy, University of Kentucky, Lexington, Kentucky
| | - Breanna Sullivan
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky
| | - Austin V Stone
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky
| | - Cale Jacobs
- Department of Orthopaedic Surgery and Sports Medicine, University of Kentucky, Lexington, Kentucky
| | - Terry Malone
- Department of Physical Therapy, University of Kentucky, Lexington, Kentucky
| | - Nicholas Heebner
- Department of Athletic Training, University of Kentucky, Lexington, Kentucky
| | - Brian Noehren
- Department of Physical Therapy, University of Kentucky, Lexington, Kentucky
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22
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Mengis N, Zimmermann F, Schemel L, Rippke JN, Milinkovic DD, Balcarek P. Return to Sports and Patients' Rehabilitation Continuum After Deepening Trochleoplasty and Concomitant Patellar-Stabilizing Procedures: A Case Series of 111 Patients at 2 to 4 Years of Follow-up. Am J Sports Med 2022; 50:674-680. [PMID: 35144479 DOI: 10.1177/03635465211063914] [Citation(s) in RCA: 2] [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 There are few reports on the return to sports after complex patellar-stabilizing surgery. PURPOSES To evaluate patients' ability to return to sports and to investigate the extent to which the preoperative level of sports participation influences sports activity after deepening trochleoplasty (TP) and concomitant patellar-stabilizing procedures. STUDY DESIGN Case series; Level of evidence, 4. METHODS Between April 2015 and April 2019, 144 patellar-stabilizing procedures, including deepening TP and medial patellofemoral ligament reconstruction or medial reefing with and without concomitant realignment procedures, were carried out in 142 patients. The Banff Patellofemoral Instability Instrument 2.0 (BPII 2.0) and the Tegner activity score were used to assess patients' quality of life and sports activity level. In addition, a numerical analog scale was used to evaluate patellofemoral pain intensity during rest and activity and subjective knee joint function. RESULTS Outcomes were available for 111 patients (112 knees) (male/female, 77/34; mean age, 23.4 ± 7.8 years), yielding a 77.7% follow-up rate at a mean of 39.2 ± 9.9 months (range, 24-48 months). Two-thirds of the patients returned to their preoperative level of activity or higher, but their Tegner scores did not change significantly (4.5 ± 2.4 vs 4.7 ± 1.6; P = .365). Low-level athletes (preoperative Tegner score 0-4) participated at a higher level of sports activity (2.7 ± 1.4 to 4.1 ± 1.2; P < .0001), whereas higher-level athletes (preoperative Tegner score 5-10) participated at a lower level (6.8 ± 1.3 to 5.5 ± 1.7; P < .0001). The likelihood of returning to the preoperative activity level (Tegner score) was significantly higher in the low-level activity group than in the high-level activity group (P = .0001; 95% CI, 4.055-27.05; odds ratio, 10.47). All of the patient-reported outcome measures improved postoperatively, independent of the patients' age, sex, and body mass index. CONCLUSION Patients undergoing deepening TP and medial soft tissue stabilization with or without concomitant realignment surgery for complex patellar instability can expect good clinical results and a high rate of return to sports participation, with two-thirds of patients returning to their preoperative Tegner-level of activity or higher. However, higher-level athletes should be informed that their likelihood of returning to sports at the preoperative level or full participation at a competitive level is reduced.
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Affiliation(s)
| | | | | | | | | | - Peter Balcarek
- Arcus Sportklinik, Pforzheim, Germany.,Department of Trauma Surgery, Orthopaedics and Plastic Surgery, University of Göttingen, Göttingen, Germany
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Horstmann H, Karkosch R, Berg A, Becher C, Petri M, Smith T. The novel dynamic MPFL-reconstruction technique: cheaper and better? Arch Orthop Trauma Surg 2022; 142:2011-2017. [PMID: 34633513 PMCID: PMC9296410 DOI: 10.1007/s00402-021-04198-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2021] [Accepted: 09/28/2021] [Indexed: 01/24/2023]
Abstract
PURPOSE Reconstruction of the medial patellofemoral ligament (MPFL) is an established procedure to restore patellar stability. Aim of this study is to evaluate the results of a dynamic MPFL reconstruction technique in a large university hospital setting. METHODS Two hundred and thirteen consecutive patients with 221 knees were surgically treated for recurrent lateral patellar dislocation. All patients obtained dynamic reconstruction of the MPFL with detachment of the gracilis tendon at the pes anserinus while maintaining the proximal origin at the gracilis muscle. Patellar fixation was performed by oblique transpatellar tunnel transfer. Follow-up data including Kujala and BANFF score, pain level as well as recurrent patella instability were collected at a minimum follow-up of 2 years. RESULTS Follow-up could be obtained from 158 patients (71%). The mean follow-up time was 5.4 years. Mean pain level was 1.9 ± 2.0 on the VAS. Mean Kujala score was 78.4 ± 15.5. Mean BANFF score was 62.4 ± 22.3. MPFL-reconstructions that were performed by surgeons with a routine of more than ten procedures had a significantly shorter surgical time 52.3 ± 17.6 min. Male patients yielded higher satisfaction rates and better clinical scores compared to females. Complications occurred in 27.2% of procedures, 20.9% requiring revision surgery of which were 9.5% related to recurrent patellar instability. 78% of all patients indicated they would undergo the procedure again. CONCLUSION Dynamic MPFL reconstruction presents a reproducible procedure with increased complication rates, inferior to the results of static reconstruction described in the literature. Despite, it appears to be an efficient procedure to restore patellar stability in a large university hospital setting, without the necessity for intraoperative fluoroscopy. TRIAL REGISTRATION The study was registered in ClinicalTrials.gov with the registration number NCT04438109 on June 18th 2020.
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Affiliation(s)
- Hauke Horstmann
- Department of Orthopaedic Surgery, Diakovere Annastift, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
| | - Roman Karkosch
- Department of Orthopaedic Surgery, Diakovere Annastift, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
| | - Annika Berg
- Department of Orthopaedic Surgery, Diakovere Annastift, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
| | - Christoph Becher
- Center for Hip, Knee and Foot Surgery, ATOS Clinic Heidelberg, 69115 Heidelberg, Germany
| | - Maximilian Petri
- Department of Orthopaedic Surgery, Diakovere Annastift, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
| | - Tomas Smith
- Department of Orthopaedic Surgery, Diakovere Annastift, Hannover Medical School, Anna-von-Borries-Str. 1-7, 30625 Hannover, Germany
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Platt BN, Bowers LC, Magnuson JA, Marx SM, Liu JN, Farr J, Stone AV. Return to Sport After Medial Patellofemoral Ligament Reconstruction: A Systematic Review and Meta-analysis. Am J Sports Med 2022; 50:282-291. [PMID: 33720789 DOI: 10.1177/0363546521990004] [Citation(s) in RCA: 17] [Impact Index Per Article: 8.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Patellar instability is frequently encountered in the athletic population. Medial patellofemoral ligament (MPFL) reconstruction is a common strategy to treat recurrent patellar dislocation and demonstrates good clinical outcomes. PURPOSE/HYPOTHESIS The purpose was to examine return to sport after MPFL reconstruction for patellar instability. We hypothesized that patients would resume athletic activity at a high rate and that a large proportion would return to their preoperative level of performance. STUDY DESIGN Systematic review and meta-analysis. METHODS A systematic review of the literature was conducted using PubMed and Cochrane Library databases to identify articles reporting return to sport after MPFL reconstruction for recurrent patellar dislocation. Athletes were defined as those reporting a preoperative sport. A random-effects model was used to evaluate return to sport rates, subsequent level, and rate of instability recurrence. Meta-regression was used to compare return to sport rates in patients undergoing MPFL reconstruction without osteotomy compared with those treated with simultaneous tibial tubercle osteotomy or trochleoplasty. RESULTS In total, 23 articles met inclusion criteria after full-text review. A total of 930 patients were analyzed, including 786 athletes. Women represented 61.3% of all patients. The overall mean age was 21.1 years (range, 9.5-60.0 years), with a mean follow-up time of 3.0 years (range, 0.8-8.5 years). The return to sport rate was 92.8% (95% CI, 86.4-97.6). Patients returned to or surpassed their preoperative level of activity in 71.3% (95% CI, 63.7-78.4) of cases. An osteotomy was performed on 10.5% of athletes. Return to sport did not differ significantly in patients undergoing MPFL reconstruction without osteotomy versus those receiving additional osteotomy (95.4% vs 86.9%; P = .22). Patients returned to sport at a mean of 6.7 months (range, 3.0-6.4 months) postoperatively. Osteotomy did not affect return time. Complications occurred at an overall rate of 8.8%. The most common complication was recurrence of instability (1.9%; 95% CI, 0.4-4.0). The Kujala score was reported by 13 studies, with pre- and postoperative combined means of 60.3 and 90.0, respectively. CONCLUSION MPFL reconstruction is an effective and reliable treatment in the setting of patellofemoral instability. Surgeons can counsel their patients that they can expect a high rate of return to sport after MPFL reconstruction surgery alone or with concomitant osteotomy.
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Affiliation(s)
- Brooks N Platt
- Division of Sports Medicine, Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky, USA
| | - Lucy C Bowers
- Division of Sports Medicine, Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky, USA
| | - Justin A Magnuson
- Division of Sports Medicine, Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky, USA
| | - Sean M Marx
- Division of Sports Medicine, Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky, USA
| | - Joseph N Liu
- Department of Orthopaedic Surgery, Loma Linda University Medical Center, Loma Linda, California, USA
| | - Jack Farr
- OrthoIndy, Cartilage Restoration Center of Indiana, Greenwood, Indiana, USA
| | - Austin V Stone
- Division of Sports Medicine, Department of Orthopaedic Surgery, University of Kentucky, Lexington, Kentucky, USA
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25
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Lampros RE, Wiater AL, Tanaka MJ. Rehabilitation and Return to Sport After Medial Patellofemoral Complex Reconstruction. Arthrosc Sports Med Rehabil 2022; 4:e133-e140. [PMID: 35141545 PMCID: PMC8811515 DOI: 10.1016/j.asmr.2021.09.030] [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: 08/01/2021] [Accepted: 09/15/2021] [Indexed: 11/24/2022] Open
Abstract
The medial patellofemoral complex (MPFC) consists of the medial patellofemoral ligament and medial quadriceps tendon femoral ligament, which play a critical role stabilizing the patella against lateral translation. After a patellar dislocation, athletes with recurrent dislocations have functional limitations that may limit their return to their prior level of competition, requiring surgical reconstruction. Although ample literature exists delineating return-to-play (RTP) considerations after anterior cruciate ligament reconstruction, there is a paucity of evidence specific to MPFC reconstruction. Athletes aiming to return to sport after MPFC reconstruction require the same methodical treatment approach to ensure safe RTP. A criterion-based periodical assessment of progress that measures range of motion, strength, neuromuscular control, balance, agility, and power are pivotal components of rehabilitating this population. A combination of objective and subjective criteria should be assessed when determining an individual’s readiness for sports-specific activities. A battery of functional tests, including quadriceps strength testing, single-limb hop testing, lateral step-down test, the lateral leap and catch test, the Y-balance test, and the depth jump should be considered when evaluating the athlete for readiness for sport, incorporating specific understanding of the biomechanics of the patellofemoral joint. We discuss the considerations for return-to-sport rehabilitation and testing after MPFC reconstruction, to provide clinicians working with an athletic population a framework to adequately prepare their athletes for safe return to sport.
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Changes in patellar morphology following surgical correction of recurrent patellar dislocation in children. J Orthop Surg Res 2021; 16:607. [PMID: 34656140 PMCID: PMC8520291 DOI: 10.1186/s13018-021-02779-7] [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: 08/18/2021] [Accepted: 10/06/2021] [Indexed: 11/24/2022] Open
Abstract
Background The aim of this study was to evaluate patellar morphological changes following surgical correction of recurrent patellar dislocation in children. Methods A total of 35 immature children aged 5 to 10 years who suffered from bilateral recurrent patellar dislocation associated with abnormal patella morphology were enrolled in this study. The knees with the most frequent dislocations (treated with medial patellar retinacular plasty) were selected as the study group (SG), and those undergoing conservative treatment for the contralateral knee were selected as the control group (CG). Computed tomography (CT) scans were performed on all children preoperatively and at the last follow-up to evaluate morphological characteristics of the patella. Results All the radiological parameters of the patella showed no significant difference between the two groups preoperatively. At the last follow-up for CT scans, no significant differences were found for the relative patellar width (SG, 54.61%; CG, 52.87%; P = 0.086) and the relative patellar thickness (SG, 26.07%; CG, 25.02%; P = 0.243). The radiological parameters including Wiberg angle (SG, 136.25°; CG, 122.65°; P < 0.001), modified Wiberg index (SG, 1.23; CG, 2.65; P < 0.001), and lateral patellar facet angle (SG, 23.35°; CG, 15.26°; P < 0.001) showed statistical differences between the two groups. Conclusions The patellar morphology can be improved by early surgical correction in children with recurrent patellar dislocation. Therefore, early intervention is of great importance for children diagnosed with recurrent patellar dislocation.
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Kim JM, Sim JA, Yang H, Kim YM, Wang JH, Seon JK. Clinical Comparison of Medial Patellofemoral Ligament Reconstruction With or Without Tibial Tuberosity Transfer for Recurrent Patellar Instability. Am J Sports Med 2021; 49:3335-3343. [PMID: 34494477 DOI: 10.1177/03635465211037716] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND No clear guidelines or widespread consensus has defined a threshold value of tibial tuberosity-trochlear groove (TT-TG) distance for choosing the appropriate surgical procedures when additional tibial tuberosity osteotomy (TTO) should be added to augment medial patellofemoral ligament (MPFL) reconstruction for recurrent patellar instability. PURPOSE To compare the clinical outcomes between MPFL reconstruction and MPFL reconstruction with TTO for patients who have patellar instability with a TT-TG distance of 15 to 25 mm. STUDY DESIGN Cohort study; Level of evidence, 3. METHODS We retrospectively analyzed 81 patients who underwent surgical treatment using either MPFL reconstruction or MPFL reconstruction with TTO for recurrent patellar instability with a TT-TG distance of 15 to 25 mm; the mean follow-up was 25.2 months (range, 12.0-53.0 months). The patients were divided into 2 groups: isolated MPFL reconstruction (iMPFL group; n = 36) performed by 2 surgeons and MPFL reconstruction with TTO (TTO group; n = 45) performed by another 2 surgeons. Clinical outcomes were assessed using the Kujala score, Knee injury and Osteoarthritis Outcome Score, and Tegner activity score. Radiological parameters, including patellar height, TT-TG distance, patellar tilt, and congruence angle were compared between the 2 groups. Functional failure based on clinical apprehension sign, repeat subluxation or dislocation, and subjective instability and complications was assessed at the final follow-up. We also compared clinical outcomes based on subgroups of preoperative TT-TG distance (15 mm ≤ TT-TG ≤ 20 mm vs 20 mm < TT-TG ≤ 25 mm). RESULTS All of the clinical outcome parameters significantly improved in both groups at the final follow-up (P < .001), with no significant differences between groups. The radiological parameters also showed no significant differences between the 2 groups. The incidence of functional failure was similar between the 2 groups (3 failures in the TTO group and 2 failures in the iMPFL group; P = .42). In the TTO group, 1 patient experienced a repeat dislocation postoperatively and 2 patients had subjective instability; in the iMPFL group, 2 patients had subjective instability. The prevalence of complications did not differ between the 2 groups (P = .410). In the subgroup analysis based on TT-TG distance, we did not note any differences in clinical outcomes between iMPFL and TTO groups in subgroups of 15 mm ≤ TT-TG ≤ 20 mm and 20 mm < TT-TG ≤ 25 mm. CONCLUSION MPFL reconstruction with and without TTO provided similar, satisfactory clinical outcomes and low redislocation rates for patients who had patellar instability with a TT-TG distance of 15 to 25 mm, without statistical difference. Thus, our findings suggest that iMPFL reconstruction is a safe and reliable treatment for patients with recurrent patellar dislocation with a TT-TG distance of 15 to 25 mm, without the disadvantages derived from TTO.
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Affiliation(s)
- Jong-Min Kim
- Department of Orthopaedic Surgery, University of Ulsan, College of Medicine, Asan Medical Center, Seoul, Republic of Korea
| | - Jae-Ang Sim
- Department of Orthopaedic Surgery, Gil Hospital, Gachon University of Medicine and Science, Incheon, Republic of Korea
| | - HongYeol Yang
- Department of Orthopedic Surgery, Chonnam National University Medical School and Hospital, Hwasun, Republic of Korea
| | - Young-Mo Kim
- Department of Orthopaedic Surgery, ChoongNam National University, College of Medicine and Hospital, Daejeon, Republic of Korea
| | - Joon-Ho Wang
- Department of Orthopaedic Surgery, Sungkyunkwan University, College of Medicine, Samsung Medical Center, Seoul, Republic of Korea
| | - Jong-Keun Seon
- Department of Orthopedic Surgery, Chonnam National University Medical School and Hospital, Hwasun, Republic of Korea
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Assessment of knee flexor muscles strength in patients with patellar instability and its clinical implications for the non-surgical treatment of patients after first patellar dislocation - pilot study. BMC Musculoskelet Disord 2021; 22:740. [PMID: 34454460 PMCID: PMC8403423 DOI: 10.1186/s12891-021-04636-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2021] [Accepted: 08/17/2021] [Indexed: 11/10/2022] Open
Abstract
Background Biomechanical studies indicate that during outward rotation of the tibia and the valgus knee joint position, the patella is shifted in the lateral direction. After first-time patellar dislocation, the dynamic position of the femur in relation to the tibia plays an important role in joint stability, because the medial stabilizer of the patella (mostly the MPFL) is damaged or inefficient. The most important factor in controlling the rotational movement of the tibia in relation to the thigh are the hamstring muscles. The aim of the study therefore is to determine whether patients with patellar instability have a significant weakness in the knee flexor muscles, which can predispose to recurrent dislocations. This is an important consideration when planning the rehabilitation of patients with first-time patellar dislocation. Methods The study enrolled 33 patients with confirmed recurrent patellar dislocation, including six patients with bilateral involvement. In the study group, the hamstring muscles (both sides) were evaluated at velocities of 60 and 180 deg/s for the following parameters: peak torque, torque at 30 degrees of knee flexion, angle of peak torque and peak torque hamstring to quadriceps ratio (H/Q ratio). Results In the recurrent patellar dislocation group, a statistically significant weakness in knee flexors was observed for both angular velocities compared to age and gender normative data. No such relationship was observed in the control group of heathy subjects. In patients with one-sided dislocation, no differences were found in knee flexors peak torque, torque at 30 degrees of knee flexion, angle of peak torque or H/Q ratio between the healthy and affected limbs for either angular velocity. Conclusions In patients with recurrent patellar dislocation, knee flexors strength is decreased significantly in both the unaffected and affected limbs. This may indicate a constitutional weakening of these muscles which can predispose to recurrent dislocations. Trial registration The study was retrospectively registered on ClinicalTrials.gov (NCT04838158), date of registration; 22/03/2021.
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Małecki K, Niedzielski K, Flont P, Fabis-Strobin A, Fabis J. Bilateral Hidden Isokinetic Quadriceps Performance before and after MPFL Reconstruction in Pediatric Patients. J Knee Surg 2021; 34:906-912. [PMID: 31905414 DOI: 10.1055/s-0039-3402031] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
We perform prospective study to evaluate the isokinetic performance of quadriceps before and 1 year after medial patella-femoral ligament (MPFL) reconstruction with the adductor magnus tendon in the case of recurrent patellar dislocation. The present study is the first to describe the isokinetic function of the quadriceps of the involved and uninvolved extremity, in such a wide range. The MPFL is a crucial passive stabilizer of patella and, along with the conditions of the anatomical shape of the femoral-patellar joint and the function of quadriceps, influences the overall patellar stability. However, only a few studies have examined indirectly or directly the function of quadriceps. A total of 27 patients (average age at surgery was 15.8 years) with recurrent monolateral patellar dislocation were treated with MPFL reconstruction using the adductor magnus tendon. In the study group, healthy and operated quadriceps were evaluated for the following parameters at the velocities of 60 and 180 deg/s before surgery and in the follow-up examination: peak torque, peak torque to body weight, time to peak torque, peak torque angle, torque in 30 degree of the knee flexion (TQ 30 degree), and the torque in the first 180 milliseconds (TQ 180). Preoperative patellar instability and its normalization after MPFL reconstruction have no impact on the isokinetic quadriceps index value which depends on the time and degree of inactivity as well as implementation of appropriate physiotherapy. The increase in the quadriceps muscle strength of a healthy limb is responsible for the persistence of muscle isokinetic imbalance after MPFL reconstruction in pediatric patients. This is a level 2b study.
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Affiliation(s)
- Krzysztof Małecki
- Clinic of Orthopaedic and Traumatology, Polish Mother's Memorial Hospital Research Institute, Lodz, Poland
| | - Kryspin Niedzielski
- Clinic of Orthopaedic and Traumatology, Polish Mother's Memorial Hospital Research Institute, Lodz, Poland
| | - Paweł Flont
- Clinic of Orthopaedic and Traumatology, Polish Mother's Memorial Hospital Research Institute, Lodz, Poland
| | - Anna Fabis-Strobin
- Clinic of Orthopaedic and Traumatology, Polish Mother's Memorial Hospital Research Institute, Lodz, Poland
| | - Jarosław Fabis
- Department of Arthroscopy, Minimally Invasive Surgery and Sports Traumatology, Medical University of Lodz, Lodz, Poland
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Objectively quantified lower limb strength recovery in people treated surgically or non-surgically after patellar dislocation: A systematic review. Phys Ther Sport 2021; 51:110-138. [PMID: 34325188 DOI: 10.1016/j.ptsp.2021.06.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 05/12/2021] [Accepted: 06/07/2021] [Indexed: 01/04/2023]
Abstract
OBJECTIVE Synthesize evidence on objectively quantified lower limb strength recovery in people treated surgically or non-surgically after patellar dislocation. METHODS MEDLINE, EMBASE, Cochrane Library, SPORTDiscus, PEDro, AMED and CINAHL databases were last searched on July 30th, 2020 for randomized controlled trials and observational studies that objectively quantified lower limb strength in people (any age or sex) treated surgically or non-surgically after patellar dislocation. RESULTS 24 studies were included (877 participants, median age 20.7). All assessed knee extension strength, 11 knee flexion strength, three hip abduction strength, two hip external rotation strength, and one hip flexion, extension, adduction, and internal rotation strength. One randomized controlled trial judged at high risk of bias and two cohort studies with methodological limitations compared lower limb strength recovery between surgically and non-surgically treated people, with conflicting findings. After surgery, median long-term (>8 months) knee extension strength was 82.5% (IQR 78.5-88.2; 13 studies) of the unaffected leg and knee flexion strength was 91.5% (IQR 90.7-96.9; five studies). After non-surgical treatment, median long-term knee extension strength was 86% (IQR 79.3-87.4; four studies) and mean flexion strength ranged from 95.2 to 96.7% (two studies). Mean hip strength was always >90% (two studies). Two redislocations during eccentric isokinetic knee testing and knee pain during isokinetic knee extension testing were reported as adverse events. CONCLUSIONS Available evidence indicates that after patellar dislocation, knee extension strength deficits in the affected limb are frequently observed and can persist long term, but this remains uncertain due to the limitations of relevant included studies. Whether lower limb strength recovery differs between people treated surgically and those treated non-surgically after patellar dislocation also remains uncertain. TRIAL REGISTRATION (PROSPERO CRD42019139533).
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Recommendations to Increase Neuromuscular Electrical Stimulation Training Intensity During Quadriceps Treatments for Orthopedic Knee Conditions. Clin J Sport Med 2021; 31:330-334. [PMID: 30817324 DOI: 10.1097/jsm.0000000000000737] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2018] [Accepted: 01/21/2019] [Indexed: 02/02/2023]
Abstract
Neuromuscular electrical stimulation (NMES) is often used by clinicians as a therapeutic adjunct to improve quadriceps strength deficits following orthopedic knee conditions. The efficacy of NMES treatments is primarily dependent on the NMES training intensity, which is a direct result of NMES-induced torque production. The importance of NMES training intensity is well known, yet adequate NMES training intensities are often difficult to achieve due to a variety of limitations associated with NMES (eg, fatigue and patient discomfort). This article provides recommendations that a clinician can use to increase NMES training intensity when strengthening the quadriceps with NMES for orthopedic knee conditions. These recommendations should allow forceful contractions that can be sustained over a treatment with multiple repetitions without the rapid decline in force that is typically seen when NMES is used.
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Dalla-Rosa J, Nogales JJ, Verdejo M, Nogales JI. Medial Patellofemoral Ligament Reconstruction: Use of All-Suture Anchors for Patellar Fixation and a Dynamic Femoral Attachment. Arthrosc Tech 2021; 10:e1345-e1350. [PMID: 34141552 PMCID: PMC8185889 DOI: 10.1016/j.eats.2021.01.037] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 01/31/2021] [Indexed: 02/03/2023] Open
Abstract
The medial patellofemoral ligament is one of the most relevant structures preventing patellar dislocation. Numerous surgical techniques have been described to reconstruct this structure and patellar biomechanics. Complications after this procedure concern both patella and femur. This technique avoids tunneling the patella and the use of intraoperative radiographs by using the adductor magnus tendon insertion.
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Affiliation(s)
- Jaime Dalla-Rosa
- Complejo Hospitalario Integral Privado, Málaga, Spain
- Address correspondence to Jaime Dalla-Rosa, M.Sc., Avenida de Carlos Haya 121, 29010, Málaga, Spain.
| | | | | | - José I. Nogales
- Complejo Hospitalario Universitario de Badajoz, Badajoz, Spain
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Marcheggiani Muccioli GM, Lullini G, Grassi A, Macchiarola L, Cammisa E, Maccaferri B, Rinaldi VG, Di Paolo S, Zaffagnini S. Good results are reported at 60-month follow-up after medial patello-femoral ligament reconstruction with fascia lata allograft for recurrent patellar dislocation. Knee Surg Sports Traumatol Arthrosc 2021; 29:1191-1196. [PMID: 32651802 DOI: 10.1007/s00167-020-06142-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Accepted: 07/02/2020] [Indexed: 11/27/2022]
Abstract
PURPOSE The aim of this study was to evaluate the efficacy of a new minimally invasive surgical technique for the reconstruction of the medial patellofemoral ligament (MPFL) with fascia lata allograft at 60-month minimum follow-up. METHODS Nineteen consecutive patients with chronic recurrent patellar dislocation were treated with MPFL reconstruction (53% isolate procedure, 47% in combination with other treatments). Seventeen patients (11 males/6 females) were available at 60-month follow-up and were clinically evaluated with validated scores. New episodes of patellar dislocation were considered failures. Radiographic and CT scan evaluation were executed preoperatively and at 60-month follow-up. RESULTS All clinical scores improved from preoperative assessment to 24-month and 60-month follow-up (p < 0.001). Kujala score increased from 61.2 ± 18.1 to 86.7 ± 8.7 and 82.1 ± 10.2; KOOS increased from 54.5 ± 19 to 86.8 ± 9.6 and 84.3 ± 7.6; VAS for pain decreased from 5.1 ± 2.2 to 2.4 ± 1.5 and 1.7 ± 1.2; Tegner score increased from 3 [2-4] to 5 [3-8] and 5 [3-9], respectively. Objective IKDC improved too. No significant improvements between the 24-month and 60-month follow-up evaluations were recorded. Anterior knee pain was reported in two patients (12%). Treatment failure, a new episode of patellar dislocation 25 months after the surgery, was observed in one patient (6%). Radiographic OA changes were not statistically significant between preop and 60-month follow-up. Tuberosity-troclear groove (TT-TG) distance and the patellar tilt angle were subjected to significant changes due to MPFL reconstruction and associated procedures. CONCLUSION MPFL reconstruction with fascia lata allograft, alone or combined with other procedures, is a reliable treatment option for recurrent patellar dislocation with a success rate of 94% and without cartilage deterioration at 60-month follow-up. LEVEL OF EVIDENCE IV.
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Affiliation(s)
- Giulio Maria Marcheggiani Muccioli
- II Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy.
- DIBINEM, University of Bologna, via di Barbiano, 1/10, c/o Lab Biomeccanica ed Innovazione Tecnologica, 40136, Bologna, Italy.
| | - Giada Lullini
- Laboratorio di Analisi del Movimento e di Valutazione Funzionale Protesi, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
- DIBINEM, University of Bologna, via di Barbiano, 1/10, c/o Lab Biomeccanica ed Innovazione Tecnologica, 40136, Bologna, Italy
| | - Alberto Grassi
- II Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Luca Macchiarola
- II Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Eugenio Cammisa
- II Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Bruna Maccaferri
- Medicina Fisica e Riabilitativa, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Vito Gaetano Rinaldi
- II Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Stefano Di Paolo
- II Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
| | - Stefano Zaffagnini
- II Clinica Ortopedica e Traumatologica, IRCCS Istituto Ortopedico Rizzoli, Bologna, Italy
- DIBINEM, University of Bologna, via di Barbiano, 1/10, c/o Lab Biomeccanica ed Innovazione Tecnologica, 40136, Bologna, Italy
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Manjunath AK, Hurley ET, Jazrawi LM, Strauss EJ. Return to Play After Medial Patellofemoral Ligament Reconstruction: A Systematic Review. Am J Sports Med 2021; 49:1094-1100. [PMID: 32866030 DOI: 10.1177/0363546520947044] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/31/2023]
Abstract
BACKGROUND Medial patellofemoral ligament (MPFL) reconstruction is being performed more frequently in athletes experiencing recurrent patellar instability. PURPOSE/HYPOTHESIS The purpose was to systematically review the evidence in the orthopaedic sports medicine literature to determine both the rate and timing of return to play after MPFL reconstruction and the rate of further patellar instability. Our hypothesis was that there would be a high rate of return to play after MPFL reconstruction. STUDY DESIGN Systematic review. METHODS A systematic literature search was performed based on the PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines, which utilized EMBASE, MEDLINE, and the Cochrane Library databases. Inclusion criteria for literature included clinical studies reporting on return to play after MPFL reconstruction. Rate of return to play, level of return, timing of return, rate of recurrent instability, and patient-reported outcomes were evaluated. Statistical analysis was performed using SPSS. RESULTS Our review found 27 studies including 1278 patients meeting our inclusion criteria. The majority of patients were women (58%), and the total group had a mean age of 22.0 years and a mean follow-up of 39.3 months. The overall rate of return to play was 85.1%, with 68.3% returning to the same level of play. The average time to return to play was 7.0 months postoperatively. The rate of recurrent instability events following reconstruction was 5.4%. There was an improvement in both mean visual analog scale, pain scores (preoperative: 4.3, postoperative: 1.6) and Tegner activity scores (preoperative: 4.8, postoperative: 5.5). CONCLUSION The overall rate of return to play was high after MPFL reconstruction for the treatment of recurrent patellar instability. However, a relatively high percentage of those patients were unable to return to their preoperative level of sport. Additionally, there was a moderate time taken to return to play, at approximately 7 months after the procedure.
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Affiliation(s)
- Amit K Manjunath
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
| | - Eoghan T Hurley
- 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
| | - Eric J Strauss
- Department of Orthopedic Surgery, New York University Langone Health, New York, New York, USA
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Complex patellofemoral reconstruction leads to improved physical and sexual activity in female patients suffering from chronic patellofemoral instability. Knee Surg Sports Traumatol Arthrosc 2021; 29:3017-3024. [PMID: 33119832 PMCID: PMC8384801 DOI: 10.1007/s00167-020-06340-7] [Citation(s) in RCA: 12] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/25/2020] [Accepted: 10/15/2020] [Indexed: 12/17/2022]
Abstract
PURPOSE To analyze postoperative physical and sexual activity as well as Quality of Life (QoL) after complex patellofemoral reconstructions in female patients suffering from chronic patellofemoral instability (PFI). METHODS Female patients aged > 18 years undergoing complex patellofemoral reconstruction for chronic PFI were included. Complex patellofemoral reconstruction was defined as medial patellofemoral ligament reconstruction (MPFL-R) combined with at least one major bony procedure (distal femoral osteotomy, high tibial osteotomy, and trochleoplasty). Outcome was evaluated retrospectively after a minimum follow-up of 12 months using Tegner activity scale, Banff Patellofemoral Instability Instrument 2.0 (BPII 2.0), EuroQol-5D-3L (EQ-5D-3L), EuroQol Visual analog scale (EQ-VAS), and a questionnaire about sexual activity. RESULTS A total of 34 females (mean age, 26 ± 5 years) with a mean follow-up of 45 ± 16 months were included. Seventy-seven percent had one major bony correction + MPFL-R and 24% had at least two major bony corrections + MPFL-R. The re-dislocation rate was 6%. Median Tegner activity scale improved from 3 (range 0-10) to 4 (range 2-6) (n.s.) and an improved activity level was observed in 49% of subjects. QoL scores showed an EQ-5D-3L Index Value of 0.89 ± 0.15, EQ-VAS of 80.3 ± 11.4, and BPII of 68.3 ± 19.1. Thirty-four percent of patients reported restrictions of sexual activities due to PFI preoperatively with an improved sexual function observed in 60% postoperatively due to less pain, improved mobility, and less apprehension. Postoperative return to sexual activity was 91%, whereof 19% reported current restrictions of sexual function because of pain and/or limited range of motion. CONCLUSION Despite the complexity and invasiveness of complex patellofemoral reconstruction, combined bony procedures and MPFL-R resulted in a low redislocation rate, improved physical activity and QoL comparable to values reported after isolated MPFL-R. Furthermore, sexual activity was improved in 60% of females with preoperative restrictions. LEVEL OF EVIDENCE IV.
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Chatterji R, White AE, Hadley CJ, Cohen SB, Freedman KB, Dodson CC. Return-to-Play Guidelines After Patellar Instability Surgery Requiring Bony Realignment: A Systematic Review. Orthop J Sports Med 2020; 8:2325967120966134. [PMID: 33403208 PMCID: PMC7745633 DOI: 10.1177/2325967120966134] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2020] [Accepted: 05/19/2020] [Indexed: 01/27/2023] Open
Abstract
Background Recurrent patellar instability can be treated nonoperatively or surgically, and surgical management may vary based on the causative pathology in the structures surrounding the patella. Although isolated soft tissue reconstruction is among the most common operative treatments, certain patient populations require bony realignment for adequate stabilization. Purpose To evaluate postoperative guidelines, including return to play and rehabilitation, after bony procedures involving the tibial tubercle for patellar instability. Study Design Systematic review; Level of evidence, 4. Methods A systematic review on return-to-play guidelines was conducted with studies published from 1997 to 2019 that detailed procedures involving bony realignment by tibial tubercle osteotomies and tibial tubercle transfers with or without soft tissue reconstruction. Exclusion criteria included animal or cadaveric studies, basic science articles, nonsurgical rehabilitation protocols, and patients with mean age <18 years. Studies were assessed for return-to-play criteria, rehabilitation protocols, and bias. Results Included in the review were 39 studies with a total of 1477 patients and 1598 knees. Mean patient age ranged from 17.5 to 34.0 years, and mean follow-up ranged from 23 to 161 months. All 39 studies described postoperative rehabilitation; however, only 16 studies specifically outlined return-to-play criteria. The most commonly cited return-to-play criterion was quadriceps strength (62.5%). Range of motion (50.0%), physical therapy protocols (18.8%), and radiographic evidence of healing (18.8%) were other cited objective criteria for return-to-play. Four of 16 (25.0%) studies described subjective criteria for return to play, including pain, swelling, and patient comfort and confidence. Of the 11 studies that described a timeline for return to play, the range was between 2 and 6 months. Conclusion The results revealed that 100% of papers evaluated lacked adequate return-to-play guidelines. Moreover, timelines significantly varied among studies. More clearly defined return-to-play guidelines after tibial tubercle transfer for patellar instability are required.
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Affiliation(s)
| | - Alex E White
- Hospital for Special Surgery, New York, New York, USA
| | - Christopher J Hadley
- Rothman Orthopaedic Institute at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Steven B Cohen
- Rothman Orthopaedic Institute at the Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Kevin B Freedman
- Rothman Orthopaedic Institute at the Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
| | - Christopher C Dodson
- Rothman Orthopaedic Institute at the Sidney Kimmel Medical College at Thomas Jefferson University, Philadelphia, Pennsylvania, USA
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Mayer P, Schuster P, Schlumberger M, Eichinger M, Pfaff M, Immendörfer M, Richter J. Midterm Results after Implant-Free Patellar Fixation Technique for Medial Patellofemoral Ligament Reconstruction. J Knee Surg 2020; 33:1140-1146. [PMID: 31269526 DOI: 10.1055/s-0039-1692654] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Problems and complications concerning the patellar fixation in medial patellofemoral ligament reconstruction (MPFLR) have been reported. The purpose of this retrospective study was to systematically analyze the surgical technique for MPFLR with a V: -shaped patellar bonetunnel for implant-free fixation of an autologous gracilis tendon, allowing early functional rehabilitation, regarding restoration of the patellofemoral stability, patient satisfaction, return to sports, and technique-specific complications. In 2010, 128 cases of consecutive isolated MPFLR were performed. All these cases were included. After a minimum follow-up of 3 years, 104 cases were retrospectively analyzed (follow-up: 81.3%) with regard to redislocation, subjective functional outcome (Tegner's score and sports level compared with preoperative level), patient satisfaction, revision surgery, and technique-specific complications. After a follow-up of 45.7 ± 3.2 months, 101 of 104 cases (97.1%) showed no redislocation. Mean Tegner's score was 5.1 ± 1.8 (range, 2-9). A total of 61.5% patients reported about a higher sports level compared with their preoperative level. The patient satisfaction was high with 94.2%. In two cases (1.9%), technique-specific problems occurred as the bone bridge of the V: -shaped tunnel was insufficient due to a malpositioning of the aiming device. No further technique-specific problems occurred and no revision surgery was necessary during the observational period. The presented surgical technique is safe and it reliably restores the patellofemoral stability, with a low rate of redislocations, an excellent subjective functional outcome, and a high-patient-reported satisfaction. No major technique-specific complications occurred.
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Affiliation(s)
- Philipp Mayer
- Center for Sports Orthopedics and Special joint surgery, Orthopedic Hospital Markgröningen, Markgröningen, Germany
| | - Philipp Schuster
- Center for Sports Orthopedics and Special joint surgery, Orthopedic Hospital Markgröningen, Markgröningen, Germany.,Paracelsus Medical Private University, Clinic Nuremberg Departement of Orthopedics and Traumatology, Nuremberg, Germany
| | - Michael Schlumberger
- Center for Sports Orthopedics and Special joint surgery, Orthopedic Hospital Markgröningen, Markgröningen, Germany
| | - Martin Eichinger
- Center for Sports Orthopedics and Special joint surgery, Orthopedic Hospital Markgröningen, Markgröningen, Germany
| | - Michael Pfaff
- Center for Sports Orthopedics and Special joint surgery, Orthopedic Hospital Markgröningen, Markgröningen, Germany
| | - Micha Immendörfer
- Center for Sports Orthopedics and Special joint surgery, Orthopedic Hospital Markgröningen, Markgröningen, Germany
| | - Jörg Richter
- Center for Sports Orthopedics and Special joint surgery, Orthopedic Hospital Markgröningen, Markgröningen, Germany
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Harput G, Ulusoy B, Akmese R, Ergun N. Comparison of muscle activation levels and knee valgus between individuals with medial patellofemoral ligament reconstruction and healthy individuals during fatiguing step down task. Clin Biomech (Bristol, Avon) 2020; 78:105067. [PMID: 32535475 DOI: 10.1016/j.clinbiomech.2020.105067] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/24/2019] [Revised: 03/19/2020] [Accepted: 05/26/2020] [Indexed: 02/07/2023]
Abstract
BACKGROUND Medial patellofemoral ligament reconstruction becomes first-choice surgical procedure for patients with a history of lateral patellar dislocations but there is limited knowledge about neuromuscular activation patterns of individuals with a history of patellar dislocation who underwent medial patellofemoral ligament reconstruction. OBJECTIVE The aim of this study was to compare muscle activation levels and knee valgus during step down performance test between individuals with a history of medial patellofemoral ligament reconstruction and healthy individuals. METHODS Fifteen individuals with medial patellofemoral ligament reconstruction and 15 healthy individuals were included. Vastus medialis obliquus, vastus lateralis and gluteus medius muscle activation levels and knee valgus were measured during 60-s- step down performance test. Two-way repeated-measures of analysis of covariance was used for statistical analysis. FINDINGS Compared to the healthy individuals, individuals with medial patellofemoral ligament reconstruction showed lower vastus medialis obliquus (p = .04) and gluteus medius (p = .005) activation levels, and higher knee valgus (p = .002) in last period of the step down performance test. INTERPRETATION Since the significant results were only observed in the fatiguing section of the test, endurance tests may provide more information about neuromuscular control of the individuals with history of medial patellofemoral ligament reconstruction. Future studies should investigate whether endurance exercises that target to improve vastus medialis obliquus and gluteus medius activity result in better clinical outcomes than conventional programs for individuals with medial patellofemoral ligament reconstruction.
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Affiliation(s)
- Gulcan Harput
- Hacettepe University, Faculty of Physical Therapy and Rehabilitation, Ankara, Turkey.
| | - Burak Ulusoy
- Karatekin University, Faculty of Health Sciences, Physiotherapy and Rehabilitation Department, Cankiri, Turkey
| | - Ramazan Akmese
- Ankara University, Faculty of Medicine, Department of Orthopaedic and Traumatology, Ankara, Turkey
| | - Nevin Ergun
- Sanko University, Faculty of Health Sciences, Physiotherapy and Rehabilitation Department, Gaziantep, Turkey
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Recurrent Patellar Dislocations Without Untreated Predisposing Factors: Medial Patellofemoral Ligament Reconstruction Versus Other Medial Soft-Tissue Surgical Techniques-A Meta-analysis. Arthroscopy 2020; 36:1725-1734. [PMID: 32001279 DOI: 10.1016/j.arthro.2019.12.029] [Citation(s) in RCA: 30] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2019] [Revised: 12/17/2019] [Accepted: 12/17/2019] [Indexed: 02/08/2023]
Abstract
PURPOSE To provide a direct comparison between medial patellofemoral ligament (MPFL) reconstruction and the other medial patellofemoral soft-tissue surgeries in the restoration of the medial patellar restraint after lateral patellar dislocations in the absence of untreated predisposing factors such as high grade trochlear dysplasia, knee malalignment, patella alta or high tibial tubercle-trochlear groove distance. METHODS PubMed, Cochrane-library, Web of Science, and gray literature databases were searched to find all the relevant records. Study selection, data extraction, and risk of bias assessment were performed following the Cochrane and Preferred Reporting Items for Systematic Reviews and Meta-analysis guidelines. Different techniques to treat lateral patellar dislocation in the absence of untreated predisposing factors were compared in terms of redislocation and complication rates, Kujala, Lysholm, International Knee Documentation Committee, and Tegner scores at the short-term (3 years) and long-term (>3 years) follow-up through meta-analyses. RESULTS Six studies involving 319 knees were included in the meta-analysis. The analyses of redislocation (0.7% vs 2.9%) and minor complication rates (12% vs 9%) showed no significant differences between MPFL reconstruction and other medial soft-tissue surgeries. Significant differences favoring MPFL reconstruction were documented in Kujala and Lysholm scores at short-term (8.6, P< .001; 10.9, P < .001) and long-term follow-ups (6.3, P = .02; 13.5, P < .001). No significant differences were found in the analyses of International Knee Documentation Committee (P = .10) and Tegner scores (P = .19). Level of evidence was low or very low. CONCLUSIONS MPFL reconstruction and medial patellofemoral soft-tissue surgery procedures were both effective in restoring the medial restraining forces preventing redislocation, but MPFL reconstruction provided better functional outcomes both at short-term and long-term follow-up. Thus, besides the treatment of predisposing factors, MPFL reconstruction seems to be, based on the results of this meta-analysis, a suitable strategy to restore the medial restraining function in the treatment of recurrent LPD. LEVEL OF EVIDENCE Level III (meta-analysis of randomized and nonrandomized comparative trials).
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Validity of intraoperative observation of graft length change pattern for medial patellofemoral ligament reconstruction. J Orthop 2020; 21:131-136. [PMID: 32255994 DOI: 10.1016/j.jor.2020.03.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Accepted: 03/23/2020] [Indexed: 01/23/2023] Open
Abstract
Background The clinical outcome of the medial patellofemoral ligament reconstruction (MPFLR) based on graft length change pattern (length pattern group) was compared with MPFLR based on visual examination combined with palpation (visual/palpation group). Methods Physical findings, patient-reported outcome, and radiographic demonstration were evaluated pre- and postoperatively. Results The length pattern group had significantly lower risk of a positive apprehension test (Odds ratio 0.12, p < 0.01), and higher scores in postoperative Lysholm score (p = 0.046) and patient satisfaction (p = 0.036) than The visual/palpation group. Conclusion MPFLR based on graft length change pattern improved on patient-reported outcomes and apprehension test. Level of evidence Level Ⅲ, Retrospective comparative study.
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Kejriwal R, Annear P. Arthroscopic assessment of patella tracking correlates with recurrent patellar instability. Knee Surg Sports Traumatol Arthrosc 2020; 28:876-880. [PMID: 31079162 DOI: 10.1007/s00167-019-05532-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/30/2018] [Accepted: 05/02/2019] [Indexed: 12/24/2022]
Abstract
PURPOSE For recurrent lateral patellar instability surgical algorithm, an arthroscopic assessment of patellar tracking can aid with the decision of adding a tibial tubercle transfer procedure based on knee flexion angle at which patella centrally engages in its groove. Tibial tubercle-trochlear groove distance is variable in normal values and has discrepancies between imaging modalities. The aims of our study were to assess correlation of arthroscopic patellar tracking technique with recurrent patellar instability, and to assess the accuracy and reproducibility of this technique. METHODS 157 patients were evaluated, 64 control patients with no patellar instability, and 93 patients with recurrent patellar instability. This included 57 consecutive knee arthroscopy procedures evaluated for accuracy and reproducibility of our technique. The technique involved low flow arthroscopy and anterolateral viewing portal. Patients' knees were extended from a flexed position of 120°, and paused when the patella disengaged from its groove. The KFA was then estimated by the primary surgeon, and compared with a goniometer measurement. The assisting surgeon, blinded to the primary surgeon measurements, repeated this process. For the primary outcome, goniometer readings for KFA from the primary surgeon were used to correlate with patellar instability diagnosis. RESULTS Patients with patellar instability had a mean KFA of 118° compared to 44°for patients without patellar instability (p < 0.001). The mean difference between goniometer reading and estimation of KFA by each surgeon was 5° (p < 0.001) with intra-class correlation of 0.99. The mean difference between the two surgeons' goniometer readings was 8° (p < 0.001) with intra-class correlation of 0.99. CONCLUSION This study confirms arthroscopic assessment of patella tracking is accurate, reproducible, and a knee flexion angle of greater than 44° correlates with patellar instability diagnosis. Patella tracking can be used as an adjunct or an alternative assessment method to tibial tubercle-trochlear groove distance to determine the need for tibial tubercle transfer in patellar stabilisation surgery. LEVEL OF EVIDENCE Prospective Cohort Study, Level III.
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Affiliation(s)
- Ritwik Kejriwal
- Taranaki Base Hospital, 87 Vivian St, New Plymouth, 4310, New Zealand.
| | - Peter Annear
- Perth Orthopaedic and Sports Medicine Centre, Perth, Australia
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White AE, Chatterji R, Zaman SU, Hadley CJ, Cohen SB, Freedman KB, Dodson CC. Development of a return to play checklist following patellar instability surgery: a Delphi-based consensus. Knee Surg Sports Traumatol Arthrosc 2020; 28:806-815. [PMID: 31201442 DOI: 10.1007/s00167-019-05510-6] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Accepted: 04/18/2019] [Indexed: 12/21/2022]
Abstract
PURPOSE To date, there is no consensus for the appropriate timing or functional evaluation for safe return to play following patellar instability surgery. The purpose of this study is to develop a consensus-based return to play checklist following patellar stabilization surgery using the Delphi method. METHODS A 3-part survey series was conducted following the systematic guidelines of the Delphi technique for gathering consensus from experts in the management of patellofemoral instability. All surveys were completed between July and November of 2017. A literature search was performed in SCOPUS and PubMed to identify existing sources on return to play following patellar instability surgery and determining patellofemoral joint strength in athletes, which served as the basis for the surveys. RESULTS 12 of the 19 selected participants (63%) completed the first-round survey, 11 of those 12 participants (92%) completed the second-round survey, and 10 of these 11 participants (91%) completed the final survey. Of the final ten participants, there was representation from seven different states in the USA. Nine of the ten (90%) respondents endorsed the final checklist. The final checklist included eight overarching domains with defined and reproducible objective criteria. CONCLUSION The standardized list of objective and reproducible criteria for rehabilitation outlined below should help practitioners focus more on patient-centred factors and less on arbitrary timelines. No prior study has gathered consensus from experts on this topic; therefore, this study should serve as a benchmark to help guide patients back to sport safely. LEVEL OF EVIDENCE V.
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Affiliation(s)
- Alex E White
- Sidney Kimmel Medical College at Thomas Jefferson University, 1025 Walnut St #100, Philadelphia, PA, 19107, USA
| | - Rishi Chatterji
- Sidney Kimmel Medical College at Thomas Jefferson University, 1025 Walnut St #100, Philadelphia, PA, 19107, USA
| | - Saif U Zaman
- Rothman Institute, 925 Chestnut Street, Philadelphia, PA, 19107, USA
| | | | - Steven B Cohen
- Rothman Institute, 925 Chestnut Street, Philadelphia, PA, 19107, USA
| | - Kevin B Freedman
- Rothman Institute, 925 Chestnut Street, Philadelphia, PA, 19107, USA
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Functional outcome after recurrent patellar dislocation : Comparison of two surgical techniques-Medial patellofemoral ligament reconstruction (MPFL) vs. Elmslie Trillat procedure. Wien Klin Wochenschr 2019; 131:614-619. [PMID: 31712883 PMCID: PMC6908566 DOI: 10.1007/s00508-019-01570-3] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2019] [Revised: 10/07/2019] [Accepted: 10/14/2019] [Indexed: 12/05/2022]
Abstract
Background There is no final consensus regarding the ideal surgical technique for the treatment of patellar dislocation. The aim of this retrospective pilot study was to describe muscle strength, body composition, self-reported physical performance, and pain in male patients after patellar dislocation treatment with two different surgical techniques: medial patellofemoral ligament (MPFL) reconstruction vs. the Elmslie-Trillat procedure. Methods Isokinetic testing of knee extensor muscles was performed using a Biodex System 3 pro dynamometer at an angular velocity of 60°/s. Body composition was measured with bioelectrical impedance analysis (Nutribox). Self-reported physical performance and pain were assessed by the SF-36 subscales of physical functioning, role physical and bodily pain. The outcome variables of peak torque normalized to participant’s body mass (Nm/kg), lean body mass, phase angle, self-reported physical performance, and pain were compared between the study groups. Results Of the 12 included male patients, 6 had been treated with MPFL reconstruction (age: median = 33 years, range = 18–38 years; BMI: median = 26 kg/m2, range = 23–29) and 6 with the Elmslie-Trillat procedure (age: median = 26 years, range = 19–32 years; BMI: median = 23 kg/m2, range = 19–28). No statistically significant differences were found between the groups in any outcome parameter of muscle strength, body composition, self-reported physical performance, or pain. Conclusions The results of the present pilot study revealed that MPFL reconstruction shows equal results to the Elmslie-Trillat procedure, with respect to isokinetic knee muscle strength, body composition, self-reported physical performance and pain in male patients suffering from recurrent patellar dislocation.
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Matsushita T, Araki D, Matsumoto T, Niikura T, Kuroda R. Changes in knee extensor strengths before and after medial patellofemoral ligament reconstruction. PHYSICIAN SPORTSMED 2019; 47:220-226. [PMID: 30417727 DOI: 10.1080/00913847.2018.1547086] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/11/2023]
Abstract
OBJECTIVE Quadriceps dysfunction has been suggested as a complication after medial patellofemoral ligament (MPFL) reconstruction. The purpose of this study was to investigate changes in knee extensor strength before and after MPFL reconstruction. METHODS Twenty patients who underwent MPFL reconstruction for unilateral recurrent patellar dislocation (18 females and 2 males; mean age 20.8 ± 7.6 years) were examined. The peak isometric torque at 60° and 90° of knee flexion and isokinetic knee extensor strength at speeds of 60°/s and 90°/s in operated and non-operated legs were measured using a dynamometer preoperatively and 6 months, 1 year, and 2 years postoperatively. The following parameters were evaluated: (1) body weight-adjusted muscle strength, (2) improvement index (post-/preoperative value × 100) (%), and (3) extensor strength ratio (operated/non-operated value × 100) (%). RESULTS The mean knee extensor strength in both operated and non-operated legs significantly increased 2 years after surgery compared with that before surgery. At 2 years postoperatively, the improvement indexes of the isometric knee extensor strength at 60° and 90° and of the isokinetic knee extensor strength at 60°/s and 90°/s were 237%, 192%, 318%, and 186%, respectively, in the operated legs and 144%, 124%, 140%, and 140%, respectively, in the non-operated legs. At 2 years postoperatively, the mean isometric knee extensor strength ratios at 60° and 90° and the isokinetic knee extensor strength ratios at 60°/s and 180°/s were 81%, 84%, 81%, and 82%, respectively. CONCLUSIONS Knee extensor strength was improved in most patients after MPFL reconstruction, at least compared with that before surgery, although an approximately 20% deficit against the non-operated legs remained even 2 years after surgery.
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Affiliation(s)
- Takehiko Matsushita
- a Department of Orthopaedic Surgery , Kobe University Graduate School of Medicine , Kobe , Japan
| | - Daisuke Araki
- a Department of Orthopaedic Surgery , Kobe University Graduate School of Medicine , Kobe , Japan
| | - Tomoyuki Matsumoto
- a Department of Orthopaedic Surgery , Kobe University Graduate School of Medicine , Kobe , Japan
| | - Takahiro Niikura
- a Department of Orthopaedic Surgery , Kobe University Graduate School of Medicine , Kobe , Japan
| | - Ryosuke Kuroda
- a Department of Orthopaedic Surgery , Kobe University Graduate School of Medicine , Kobe , Japan
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Erickson BJ, Nguyen J, Gasik K, Gruber S, Brady J, Shubin Stein BE. Isolated Medial Patellofemoral Ligament Reconstruction for Patellar Instability Regardless of Tibial Tubercle-Trochlear Groove Distance and Patellar Height: Outcomes at 1 and 2 Years. Am J Sports Med 2019; 47:1331-1337. [PMID: 30986090 DOI: 10.1177/0363546519835800] [Citation(s) in RCA: 87] [Impact Index Per Article: 17.4] [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 It is unclear which patients with recurrent patellar instability require a bony procedure in addition to medial patellofemoral ligament (MPFL) reconstruction. PURPOSE To report 1- and 2-year outcomes of patients after isolated MPFL reconstruction performed for patellar instability regardless of patellar height, tibial tubercle-trochlear groove (TT-TG) distance, or trochlear dysplasia. STUDY DESIGN Case series; Level of evidence, 4. METHODS All patients with recurrent patellar instability and without significant unloadable chondral defects (Outerbridge grade IV), cartilage defects (especially inferior/lateral patella), previous failed surgery, or pain >50% as their chief complaint were prospectively enrolled beginning March 2014. All patients underwent primary, unilateral, isolated MPFL reconstruction regardless of concomitant bony pathology for treatment of recurrent patellar instability. Information on recurrent subjective instability, dislocations, ability to return to sport (RTS), and outcome scores was recorded at 1 and 2 years. TT-TG distance, patellar height (with the Caton-Deschamps index), and trochlear depth were measured. RESULTS Ninety patients (77% female; mean ± SD age, 19.4 ± 5.6 years) underwent MPFL reconstruction between March 2014 and August 2017: 72 (80%) reached 1-year follow-up, and 47 (52.2%) reached 2-year follow-up (mean follow-up, 2.2 years). Mean TT-TG distance was 14.7 ± 5.4 mm (range, -2.2 to 26.8 mm); mean patellar height, 1.2 ± 0.11 mm (range, 0.89-1.45 mm); and mean trochlear depth, 1.8 ± 1.4 mm (range, 0.05-6.85 mm). Ninety-six percent of patients at 1 year and 100% at 2 years had no self-reported patellofemoral instability; 1 patient experienced a redislocation at 3.5 years. RTS rates at 1 and 2 years were 90% and 88%, respectively. Mean time to RTS was 8.8 months. All patients had clinically and statistically significant improvement in mean Knee injury and Osteoarthritis Outcome Score-Quality of Life (32.7 to 72.0, P < .001), mean International Knee Documentation Committee subjective form (51.4 to 82.6, P < .001), and mean Kujala score (62.2 to 89.5, P < .001). No difference existed between 1- and 2-year outcome scores (all P > .05). CONCLUSION At early follow-up of 1 and 2 years, isolated MPFL reconstruction is an effective treatment for patellar instability and provides significant improvements in outcome scores with a low redislocation/instability rate regardless of bony pathologies, including TT-TG distance, Caton-Deschamps index, and trochlear dysplasia. Future data from this cohort will be used to assess long-term outcomes.
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Affiliation(s)
| | - Joseph Nguyen
- Division of Sports and Shoulder, Hospital for Special Surgery, New York, New York, USA
| | - Katelyn Gasik
- Division of Sports and Shoulder, Hospital for Special Surgery, New York, New York, USA
| | - Simone Gruber
- Division of Sports and Shoulder, Hospital for Special Surgery, New York, New York, USA
| | - Jacqueline Brady
- Division of Orthopaedic Surgery, Oregon Health and Science University, Portland, Oregon, USA
| | - Beth E Shubin Stein
- Division of Sports and Shoulder, Hospital for Special Surgery, New York, New York, USA
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Saper MG, Fantozzi P, Bompadre V, Racicot M, Schmale GA. Return-to-Sport Testing After Medial Patellofemoral Ligament Reconstruction in Adolescent Athletes. Orthop J Sports Med 2019; 7:2325967119828953. [PMID: 30854403 PMCID: PMC6399765 DOI: 10.1177/2325967119828953] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Return to sport (RTS) after patellar stabilization surgery involves the return of strength and dynamic knee stability, which can be assessed using isometric strength and functional performance testing. Purpose To investigate the results of isometric strength and functional RTS testing between the surgical and uninvolved limbs in adolescent patients who underwent medial patellofemoral ligament (MPFL) reconstruction for patellar instability. Study Design Case series; Level of evidence, 4. Methods A retrospective review of adolescent patients who underwent MPFL reconstruction identified 28 patients (20 female, 8 male) who also underwent isometric and functional RTS testing. Data were compared with the uninvolved limb. The recovery of muscle strength was defined by a limb symmetry index (LSI) ≥90%. Differences in peak torque were compared using the Wilcoxon signed-rank test. Correlations were examined between dependent and independent variables using the Spearman correlation. Results The mean age of the patients was 14.9 years (range, 12-16 years). Reconstruction was performed with a hamstring autograft in 17 (60.7%) patients. Concomitant tibial tubercle osteotomy was performed in 10 (35.7%) patients. Testing was performed at a mean 7.4 months (range, 5.5-11.9 months) postoperatively. The mean LSIs for quadriceps and hamstring strength were 85.3% and 95.1%, respectively. For knee extension, there was a statistically significant difference between isometric peak torque measured in the surgical and uninvolved limbs (P = .001). Only 32.0% of patients passed all 4 hop tests. Also, 63.0% of patients achieved an anterior reach asymmetry of <4 cm on the Lower Quarter Y-Balance Test (YBT-LQ). There were no statistically significant differences in isometric strength testing, hop tests, or the YBT-LQ based on graft type or concomitant procedures. There was no correlation between isometric strength and performance on the YBT-LQ or hop tests. Conclusion Adolescent athletes undergoing MPFL reconstruction may need prolonged rehabilitation programs beyond 8 months to allow the adequate recovery of muscle strength for safe RTS. There is a significant deficit in isometric quadriceps strength in the surgical limb after surgery. Further investigation is needed to determine safe RTS criteria after MPFL reconstruction in the pediatric and adolescent population.
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Affiliation(s)
- Michael G Saper
- Department of Orthopedics and Sports Medicine, Seattle Children's, Seattle, Washington, USA.,Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, Washington, USA
| | | | - Viviana Bompadre
- Department of Orthopedics and Sports Medicine, Seattle Children's, Seattle, Washington, USA
| | - Mimi Racicot
- Department of Rehabilitation Medicine, Seattle Children's, Seattle, Washington, USA
| | - Gregory A Schmale
- Department of Orthopedics and Sports Medicine, Seattle Children's, Seattle, Washington, USA.,Department of Orthopaedics and Sports Medicine, University of Washington, Seattle, Washington, USA
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Abstract
PURPOSE OF REVIEW The purpose of this review is to describe the current understanding of the medial patellofemoral complex, including recent anatomic advances, evaluation of indications for reconstruction with concomitant pathology, and surgical reconstruction techniques. RECENT FINDINGS Recent advances in our understanding of MPFC anatomy have found that there are fibers that insert onto the deep quadriceps tendon as well as the patella, thus earning the name "medial patellofemoral complex" to allow for the variability in its anatomy. In MPFC reconstruction, anatomic origin and insertion points and appropriate graft length are critical to prevent overconstraint of the patellofemoral joint. The MPFC is a crucial soft tissue checkrein to lateral patellar translation, and its repair or reconstruction results in good restoration of patellofemoral stability. As our understanding of MPFC anatomy evolves, further studies are needed to apply its relevance in kinematics and surgical applications to its role in maintaining patellar stability.
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Affiliation(s)
- Alexander E Loeb
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, Baltimore, MD, 21287, USA
| | - Miho J Tanaka
- Department of Orthopaedic Surgery, The Johns Hopkins University, 601 N. Caroline Street, Baltimore, MD, 21287, USA.
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Abstract
PURPOSE OF REVIEW To discuss the potentially significant complications associated with medial patellofemoral ligament (MPFL) reconstruction. Additionally, to review the most current and relevant literature with an emphasis on avoiding these potential complications. RECENT FINDINGS Multiple cadaveric studies have characterized the anatomy of the MPFL and the related morphologic abnormalities that contribute to recurrent lateral patellar instability. Such abnormalities include patella alta, excessive tibial tubercle to trochlear grove (TT-TG) distance, trochlear dysplasia, and malalignment. Recent studies have evaluated the clinical outcomes associated with the treatment of concomitant pathology in combination with MPFL reconstruction, which is critical in avoiding recurrent instability and complications. Although there remains a lack of consensus regarding various critical aspects of MPFL reconstruction, certain concepts remain imperative. Our preferred methods and rationales for surgical techniques are described. These include appropriate work up, a combination of procedures to address abnormal morphology, anatomical femoral insertion, safe and secure patellar fixation, appropriate graft length fixation, and thoughtful knee flexion during fixation.
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Affiliation(s)
- Marvin K Smith
- Department of Orthopaedic Surgery, Sports Medicine Division, University of Virginia, 400 Ray C. Hunt Drive, Third Floor, Charlottesville, FL, 22903, USA
| | - Brian C Werner
- Department of Orthopaedic Surgery, Sports Medicine Division, University of Virginia, 400 Ray C. Hunt Drive, Third Floor, Charlottesville, FL, 22903, USA
| | - David R Diduch
- Department of Orthopaedic Surgery, Sports Medicine Division, University of Virginia, 400 Ray C. Hunt Drive, Third Floor, Charlottesville, FL, 22903, USA.
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Popkin CA, Bayomy AF, Trupia EP, Chan CM, Redler LH. Patellar Instability in the Skeletally Immature. Curr Rev Musculoskelet Med 2018; 11:172-181. [PMID: 29682681 DOI: 10.1007/s12178-018-9472-5] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
Abstract
PURPOSE OF REVIEW This review will focus on the evaluation and management of patellar instability in the developing patient. RECENT FINDINGS A large number of surgical techniques have been described to prevent recurrent patellofemoral instability in the pediatric population, including both proximal and distal realignment procedures. The wide variety of treatment options highlights the lack of agreement as to the best surgical approach. However, when a comprehensive exam and workup are paired with a surgical plan to address each of the identified abnormalities, outcomes are predictably good. Patellar instability is a common knee disorder in the skeletally immature patient that presents a unique set of challenges. Rates of re-dislocation in pediatric and adolescent patients are higher than in their adult counterparts. Careful consideration of the physeal and apophyseal anatomy is essential in these patients. While the majority of primary patellar instability events can be treated conservatively, multiple events often require surgical intervention.
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Affiliation(s)
- Charles A Popkin
- Elbow and Sports Medicine and Morgan Stanley Children's Hospital, Columbia University Center for Shoulder, 622 W 168th Street 11th floor, New York, NY, 10032, USA.
| | - Ahmad F Bayomy
- Elbow and Sports Medicine and Morgan Stanley Children's Hospital, Columbia University Center for Shoulder, 622 W 168th Street 11th floor, New York, NY, 10032, USA
| | - Evan P Trupia
- Elbow and Sports Medicine and Morgan Stanley Children's Hospital, Columbia University Center for Shoulder, 622 W 168th Street 11th floor, New York, NY, 10032, USA
| | - Charles M Chan
- Department of Orthopaedic Surgery, Lucile Packard Children's Hospital, Stanford University, 450 Serra Mall, Stanford, CA, 94305, USA
| | - Lauren H Redler
- Elbow and Sports Medicine and Morgan Stanley Children's Hospital, Columbia University Center for Shoulder, 622 W 168th Street 11th floor, New York, NY, 10032, USA
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Zimmerer A, Sobau C, Balcarek P. Recent developments in evaluation and treatment of lateral patellar instability. J Exp Orthop 2018; 5:3. [PMID: 29322270 PMCID: PMC5762615 DOI: 10.1186/s40634-017-0119-z] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 12/22/2017] [Indexed: 01/25/2023] Open
Abstract
Recent years have been characterized by an ongoing increase in knowledge about the different conditions associated with lateral patellar instability. This increase in knowledge provides differentiated approaches to the various pathologies of the patellofemoral joint. Though current guidelines consider medial patellofemoral ligament (MPFL) reconstruction the basic treatment for the unstable patella, medial soft tissue-stabilizing procedures should not be interpreted as stand-alone procedures in every case. The influence of different anatomical factors leading to patellar instability, as well as their impact on clinical outcome measures, is becoming increasingly apparent and deserves further attention. Therefore, the purpose of this review was to summarize recent developments in lateral patellar instability beyond MPFL reconstruction techniques. For this goal, the literature published within the last 3 years considering all aspects of lateral patellar instability was analysed. Six main topics evolved according to the number of publications and in terms of novel aspects and recent developments in the evaluation and treatment of lateral patellar instability. Those topics formed the basis of this article: (1) treatment of first-time patellar dislocation, (2) the impact of trochlear dysplasia and trochleoplasty procedures, (3) the relevance of torsional deformities, (4) patellar instability in open physis, (5) the implementation of new outcome measures, and (6) rehabilitation after patellar stabilizing procedures.
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