Orthopaedic Journal of Sports Medicine最新文献

Background: Additional anterolateral ligament (ALL) reconstruction has been associated with improved clinical outcomes and reduced failure rates in anterior cruciate ligament (ACL) reconstruction. Despite the excellent clinical results reported, there is still a heated debate about its indications. Currently, the indications are mainly based on the patient's clinical criteria and not the imaging diagnosis of the injury of this ligament.

Purpose: To compare the clinical outcomes of patients undergoing isolated ACL reconstruction and combined ACL and ALL reconstruction conditioned to intraoperative ultrasound-guided diagnosis of the ALL lesion.

Study design: Cohort study; Level of evidence, 3.

Methods: A retrospective analysis of prospectively collected data was performed. Patients undergoing primary ACL reconstruction between January 2017 and January 2022 were included. Patients were excluded if they had a previous history of ipsilateral knee surgery or if they underwent other concomitant procedures, including multiligament reconstruction surgery or osteotomy. The decision to perform an ALL reconstruction in addition to isolated ACL reconstruction was based on ultrasound diagnosis of this lesion. At the end of the study period, further knee injury and any other reoperations or complications were recorded and compared between patients who had isolated ACL reconstruction (no-ALLR group) and combined ACL and ALL. Propensity score matching was performed between groups. A multivariable analysis using the penalized Cox model was performed to explore the relationship between the graft rupture, surgical procedure type, and potential explanatory variables.

Results: A total of 339 patients met the predefined eligibility criteria; 146 ACL reconstructions were performed in an isolated manner (no-ALLR group) and 193 were combined with ALL (ALLR group). After matching, 130 patients were allocated to each group. The mean follow-up was 36.7 months. The overall graft failure rate was 4.6% (6.9% in the no-ALLR group and 2.3% in the ALLR group; P = .076). The adjusted Cox regression showed that graft failure rate was nonsignificantly different between the groups (adjusted hazard ratio [HR], 0.36 [95% CI, 0.096-1.364]; P = .133). Younger age (≤20 years) was associated with graft failure (adjusted HR, 0.29 [95% CI, 0.121-0.719]; P = .007).

Conclusion: Combined ACL and ALL reconstruction conditioned to intraoperative ultrasound-guided diagnosis of the ALL lesion has an equivalent ACL graft failure rate to isolated ACL. Intraoperative ultrasound diagnosis of an ALL injury may be an indication for the addition of an ALL reconstruction.

Background: Graft selection is an important part of preoperative planning for anterior cruciate ligament reconstruction (ACLR). In addition, ACLR with the remnant preservation technique has recently gained attention due to potential benefit in bone-tendon healing, graft revascularization, and proprioceptive nerve remodeling. However, the ideal graft choice remains controversial, and there is limited research comparing autograft and allograft in ACLR with remnant preservation.

Purpose: To compare knee muscle strength, neuromuscular control, and patient-reported outcomes between hamstring (HS) tendon autografts and tibialis anterior (TA) allografts in patients undergoing ACLR with remnant preservation through posterior transseptal portal for >1 year.

Study design: Cohort study; Level of evidence, 3.

Methods: A total of 70 patients who underwent ACLR with remnant preservation between 2018 and 2021 using HS tendon autograft (n = 35) or TA allograft (n = 35) were analyzed at 3 different time points (preoperative, 6 months, and 12 months). Quadriceps and HS muscle strengths were measured with an isokinetic device. Proprioception was evaluated with reproduction of passive positioning for joint position sense and overall stability index (OSI) for dynamic postural stability. Patient-reported outcomes included the Lysholm score and the International Knee Documentation Committee score.

Results: There were no significant differences in demographic information including age, body mass index, concomitant meniscal injuries, and sports activities (P > .05) between HS tendon autograft and TA allograft groups. Quadriceps and HS strength in both groups, HS strength in deep knee flexion in both groups, and OSI in the HS tendon autograft group significantly improved at 12 months (P < .05). Repeated-measures analysis of variance revealed significant interactions between time and grafts for OSI (F[2, 136] = 5.08; P = .007). The subsequent independent t test demonstrated that the OSI was significantly higher in the TA allograft group (2.7 ± 1.0) than that of the HS tendon autograft group (2.1 ± 0.8) at 12 months (P = .009), indicating better dynamic postural stability in the HS tendon autograft group.

Conclusion: No significant differences were found in knee muscle strength or patient-reported outcomes between HS tendon autograft and TA allograft after ACLR with remnant preservation for up to 1 year except for dynamic postural stability favoring HS tendon autograft.

Background: Superior labrum anterior-posterior (SLAP) lesions are common shoulder injuries. The 10-type classification system has been widely used to diagnose SLAP lesions since it was proposed. However, growing evidence from arthroscopic studies indicates the existence of many SLAP lesions, especially those associated with superior glenoid humeral ligament (SGHL) injuries, that were not included in the initial classification.

Purpose: To introduce a SLAP classification associated with SGHL injury based on arthroscopic views and discuss the injury mechanism and corresponding treatment options.

Study design: Cross-sectional study; Level of evidence, 3.

Methods: Patients with SLAP lesions who underwent shoulder arthroscopic surgical treatment between June 2011 and January 2017 in 6 level 1 centers were evaluated in this study. Preoperative radiographs and magnetic resonance imaging scans were used to diagnose SLAP lesions, and arthroscopic views from the standard posterior portal were recorded. The traditional 10-type classification system for SLAP was used to classify these cases. A classification method for SLAP lesions associated with SGHL injury was introduced. This classification system was investigated by 4 observers to evaluate inter- and intraobserver reliability (kappa coefficient [κ]).

Results: A total of 828 patients were included in this analysis; 61 patients (7.4%) could not be classified by the 10-type traditional classification, and 44 patients (5.3%) had SGHL lesions. A novel classification for 3 subtypes of SLAP with SGHL lesions was introduced. The mean κ value of the interobserver reliability for the classification approach was 0.796 (range, 0.678-0.854), indicating substantial agreement. The mean κ value for the intraobserver reliability was 0.883 (range, 0.779-0.964), indicating excellent agreement.

Conclusion: This study demonstrated a novel classification system for SLAP lesions associated with SGHL injury by introducing a series of cases with characteristics that showed high inter- and intraobserver reliability. Such cases have not been reported before, and the classification correlates with surgical treatment. This classification may be used as a supplement to the traditional 10-type classification.

Background: Previous studies have demonstrated that lateral meniscal allograft transplantation (MAT) through medial arthrotomy showed less extrusion than that of the lateral arthrotomy. However, there is a paucity of literature reporting clinical and radiological outcomes after lateral MAT through the medial arthrotomy.

Hypothesis: Lateral MAT through a medial arthrotomy would show significantly improved clinical scores and minimal joint space narrowing compared with preoperative status.

Study design: Case series; Level of evidence, 4.

Methods: Between 2001 and 2019, a retrospective chart review was conducted for all patients who underwent lateral MAT using the bony bridge technique through medial arthrotomy. Inclusion criteria were patients who underwent lateral MAT after subtotal or total meniscectomy of the lateral meniscus. A total of 27 patients who were not followed up for >4 years or had follow-up magnetic resonance imaging after surgery were excluded. At final follow-up, Lysholm scores and Tegner activity scale scores were collected. Graft extrusion, trough angle, and position of the bony bridge were measured by magnetic resonance imaging at 6 months after MAT. Joint space width (JSW) of the lateral compartment on Rosenberg view was measured and compared preoperatively and at follow-up.

Results: A total of 28 patients were included in this study. Their mean age was 29.8 years (range, 15-48 years) with a mean follow-up of 11.4 years. Preoperative Lysholm scores and Tegner activity scale scores (66.5 ± 16.6 and 3.1 ± 1.9, respectively) significantly improved at follow-up (84.8 ± 11.1 [P < .001] and 4.4 ± 1.5 [P = .008], respectively). The JSW decreased from 6.2 ± 1.6 mm to 5.7 ± 1.4 mm (P = .014). Extrusion was 2.2 ± 1.5 mm, and trough angle was 1.5°± 8.9°. The bony bridge was positioned at 43.9% ± 4.3% from the lateral edge on the entire tibial plateau. Nine patients (32.1%) underwent subsequent procedures. Partial meniscectomies were performed in 2 patients, meniscal repairs in 2, manipulation under anesthesia in 1, and lateral capsular plication in 1. Three patients who underwent total meniscectomy or revision surgery were regarded as having a failure; therefore, 89.3% grafts survived.

Conclusion: Lateral MAT through the medial arthrotomy demonstrated satisfactory clinical and radiological outcomes at long-term follow-up.

Background: Acromiohumeral interval (AHI) reversibility is used to evaluate whether superior humeral migration is fixed or flexible in patients with massive rotator cuff tears (MRCTs). AHI reversibility is measured as the difference in the AHI observed between standard and stress radiography. However, factors affecting AHI reversibility have not been studied in the existing literature.

Purpose: To investigate potential factors affecting AHI reversibility in patients with MRCTs.

Study design: Case-control study; Level of evidence, 3.

Methods: A retrospective analysis was conducted on 58 patients with MRCTs, who had undergone magnetic resonance imaging, computed tomography, and stress radiography of the same shoulder. Potential factors affecting AHI reversibility were evaluated by stepwise regression analysis.

Results: A total of 58 patients (26 male, 32 female) were included in this study. The mean age of the patients was 66.4 ± 8.3 years. There were 33 patients classified as having a reversible AHI and 25 patients classified as having an irreversible AHI. Age, time from symptom onset, anteroposterior tear size, critical shoulder angle (CSA), acromial index, and subscapularis Goutallier grade were associated with AHI reversibility in univariate analysis. Multivariate linear regression analysis showed that a longer time from symptom onset and a bigger CSA were significantly associated with lower AHI reversibility. No significant association was found between AHI reversibility and sex; body mass index; activity level; tear retraction; biceps condition; deltoid cross-sectional area; and Goutallier grade of the supraspinatus, infraspinatus, and teres minor muscles. The cutoff values to predict AHI reversibility for time from symptom onset and CSA were found to be 5.5 years and 38°, respectively.

Conclusion: Time from symptom onset (>5.5 years) and CSA (>38°) were significant independent factors of AHI reversibility. These factors should be considered for the decision-making process in patients with MRCTs.

Background: Angiotensin-converting enzyme inhibitors (ACEi), angiotensin receptor blockers (ARB), and statins may be able to modulate postoperative stiffness, a major cause of morbidity after arthroscopic rotator cuff repair (aRCR).

Purpose: To determine whether there is an association between ACEi, ARB, or statin usage and stiffness after aRCR.

Study design: Cohort study; Level of evidence, 3.

Methods: Patients who underwent primary aRCR between January 2016 and December 2019 were categorized into 4 groups depending on the usage of ACEi (n = 45), ARB (n = 27), statins (n = 53), or none of these medications (controls; n = 113). Range of motion in flexion, abduction, internal rotation (IR), and external rotation (ER) was recorded preoperatively and at 6 weeks and 3, 6, and 12 months postoperatively. Functional outcomes were assessed with the American Shoulder and Elbow Surgeons (ASES) score, the Single Assessment Numeric Evaluation (SANE), and the Simple Shoulder Test (SST) preoperatively and at 1 and 2 years postoperatively. The groups were compared using t test or Mann-Whitney U test for continuous data and chi-square or Fisher exact test for categorical data.

Results: Preoperatively, compared with controls, the ACEi group had decreased flexion (P = .038), abduction (P = .001), ER (P = .009), and IR (P = .015); the ARB group had decreased abduction (P = .012) and IR (P = .019); and the statins group had decreased abduction (P = .015), ER (P = .008), and IR (P = .011). Postoperatively, compared with controls, the ACEi group had decreased 6-month abduction (P = .034) that resolved by 12 months and 3-month ER (P = .004) that persisted into 6 months, the ARB group had greater ER at 12 months (P = .006), and the statins group had increased 6-week abduction (P = .017) that normalized by 3 months. Patients taking ACEi had lower postoperative ASES (30 vs 58.6; P = .001) and SANE scores (28.4 vs 52.3; P = .002) at 1 year and lower SST scores at 2 years (74.7 vs 85.5; P = .002) versus controls.

Conclusion: Patients who used ACEi showed an increased risk of stiffness 6 months postoperatively and had worse SST scores at 2 years after aRCR, while those who used ARB demonstrated improved postoperative ER and IR, with no changes in functional outcomes at longer-term follow-ups.

Background: The Shoulder Pain and Disability Index (SPADI) is a widely used 13-item shoulder-specific patient-reported outcome measure for shoulder pain disorders. The English version of SPADI is easy to use and demonstrates excellent measurement properties for clinical and research settings.

Purpose: To translate and culturally adapt an Indonesian version of SPADI (SPADI-IDN) and then validate its use in Indonesian patients.

Study design: Cohort study (Diagnosis); Level of evidence, 2.

Methods: Through a forward and a backward translation process, the validity of the questionnaire was investigated. The study population was 100 patients with shoulder pain who were treated in a hospital in Indonesia. The patients were asked to fill out the SPADI-IDN during their visit. To evaluate the validity of SPADI-IDN, the patients were also asked to fill out the Medical Outcomes Study 12-Item Short-Form Health Survey and the Oxford Shoulder Score. To assess the test-retest reliability, the same patients were asked to fill out the SPADI-IDN questionnaire again 1 week later. The assessment of construct validity, test-retest reliability, internal consistency, floor and ceiling effect, and measurement of error followed the COSMIN (Consensus-based Standards for the selection of health Measurement Instruments) guidelines. The Bland-Altman method was used to explore absolute agreement.

Results: Of the 100 eligible patients, all were used to assess construct validity, and 87 patients (87%) were used to assess test-retest reliability. Almost every established hypothesis about the correlations between SPADI-IDN and other questionnaires could be confirmed, implying good construct validity. No floor or ceiling effects were found. The intraclass correlation value was 0.99, indicating strong test-retest reliability. A Cronbach α was 0.95, indicating a good internal consistency. The Bland-Altman analysis did not reveal any bias. The standard error of measurement and the minimal detectable change at the individual and group levels were 2.65, 7.3, and 0.7, respectively.

Conclusion: The SPADI-IDN represents a valid and reliable tool for measuring pain and disability in patients with shoulder pain disorders.

Background: Coexisting symptoms can confound outcomes after arthroscopic correction of femoroacetabular impingement (FAI). Symptom burden (SB) represents the cumulative load of patient-reported symptoms.

Purpose: To quantify the prevalence of symptoms in athletes before and after arthroscopic correction of FAI and evaluate the impact of independent and cumulative SB resolution on outcomes.

Study design: Case series; Level of evidence, 4.

Methods: Included were 509 hips of 386 athletes (89% men; age, 26.4 ± 6.1 years) who underwent primary hip arthroscopy for FAI between 2011 and 2020. Symptom prevalence was assessed preoperatively and 1 year postoperatively using a 15-item SB survey, with the total number of symptoms reported as the SB score. Minimal clinically important difference (MCID-SB) and substantial clinical benefit (SCB-SB) thresholds according to the proportional pre- to postoperative resolution of SB were calculated, and 1- and 2-year postoperative patient-reported outcome measures (PROMs)-including the modified Harris Hip Score and 36-Item Short Form Survey-were compared relative to MCID-SB and SCB-SB achievement. Multivariable stepwise regression was used to evaluate the ability of individual symptom resolution for MCID and SCB achievements on PROMs.

Results: The SB score was 6 ± 2.9 preoperatively, improving to 2.8 ± 2.7 at 1 year postoperatively (P < .001). A proportional reduction in symptoms by 48.5% and 70.3% defined the MCID-SB and SCB-SB, respectively; this was achieved by 63.6% and 43.8% of the hips, respectively. Postoperatively, PROMs were superior where clinically meaningful SB resolution thresholds were achieved (P < .001). A significantly higher proportion of these cases returned to their main sport (79.4% vs 63.1% achieved MCID-SB; 83.8% vs 65.2% achieved SCB-SB) (P < .001). Odds ratios for symptoms associated with achieving the MCID on PROMs included resolution of groin pain (2.6-5.5), side hip pain (3.4), pain during (3.1) and after (2.6-3.5) activity, hamstring tightness (2.6), and limping after activity (2.6). Symptom resolution associated with achieving SCB included groin pain (3.0-3.1), pain during (3.3) and after (2.7-4.2) activity, and limping after activity (3-6.8).

Conclusion: Achieving thresholds of clinically important SB resolution was associated with superior postoperative PROM scores and higher rates of return to sports for this athletic cohort. Resolution of groin pain, pain during/after activity, hamstring tightness, and limping after activity increased the odds of achieving clinically important improvement on PROMs.

Background: Tibiofemoral rotation is an emerging parameter, especially in assessing patellofemoral instability. However, reference values in the literature are inconsistent regarding the used imaging modality and do not consider the effect of knee flexion during image acquisition.

Purpose: To analyze the differences in tibiofemoral rotation measurements between computed tomography (CT) and magnetic resonance imaging (MRI).

Study design: Cross-sectional study; Level of evidence, 3.

Methods: A total of 78 knees in 72 patients were included. All patients underwent surgery for patellofemoral instability at our institution and preoperative CT and MRI were available. Tibiofemoral rotation was measured on axial CT and MRI, whereas the respective knee flexion angle (KFA) was measured on sagittal images. Tibiofemoral rotation values in which the tibia was externally rotated to the femur were handled as positive values. Differences between CT and MRI measurements were calculated and the association between KFA and tibiofemoral rotation was evaluated using Pearson correlation and the Mann-Whitney U test.

Results: The mean tibiofemoral rotation was 8.7°± 5.5° in CT and 4.2°± 6.7° in MRI (P < .001). The mean KFA was 2.4°± 3.1° in CT and 14.9°± 6.4° in MRI (P < .001). The difference in the KFA between CT and MRI moderately correlated with the difference in tibiofemoral rotation between imaging modalities (r = 0.529; P < .001).

Conclusion: Tibiofemoral rotation measurements significantly differed between CT and MRI, with larger values observed in CT. The difference between imaging modalities correlated with the degree of knee flexion during image acquisition. This observation should be considered when assessing tibiofemoral rotation, as current reference values in the literature are inconsistent regarding the used imaging modality.

Background: The growing popularity of glucagon-like peptide-1 receptor agonists (GLP-1-RAs) for weight loss could significantly impact joint preservation and arthroplasty. While this will in part be driven by the association between obesity, osteoarthritis (OA), and total joint arthroplasty (TJA), recent evidence also indicates that GLP-1-RAs may have direct joint-protective, anti-inflammatory effects.

Purpose: To evaluate the association between GLP-1-RA use and the onset and progression of hip and knee OA in an obese population.

Study design: Cohort study; Level of evidence, 3.

Methods: A national health network was queried for patients with an index visit between June 1, 2021, and January 1, 2023, and a body mass index (BMI) ≥30. Patients were stratified into groups without (n = 1,092,225) and with(n = 237,043) preexisting hip and/or knee OA. One-to-one propensity score matching was used to balance GLP-1-RA use based on age, sex, race, BMI, and comorbid type 2 diabetes mellitus. Primary outcomes were incidence of hip OA, knee OA, major joint injections, total hip arthroplasty (THA), and total knee arthroplasty (TKA) within 1 year. Cox proportional hazards models were used to estimate hazard ratios (HRs) between cohorts prescribed and not prescribed GLP-1-RAs.

Results: In patients with preexisting OA, GLP-1-RA use correlated with reduced odds of conversion to THA (1.1% vs 2.2%; HR, 0.6; 95% CI, 0.5 to 0.8) and TKA (1.4% vs 2.1%; HR, 0.8; 95% CI, 0.6 to 0.9) within 1 year. In patients without preexisting OA, GLP-1-RA use was associated with an increased incidence of hip OA (0.9% vs 0.7%; HR, 1.4; 95% CI, 1.2 to 1.6), knee OA (2.1% vs 1.9%; HR, 1.3; 95% CI, 1.2 to 3.1), major joint injections (2.2% vs 1.8%; HR, 1.4; 95% CI, 1.3 to 1.5), and TKA (0.09% vs 0.04%; HR, 2.6; 95% CI, 1.6 to 4.3). Comparing cohorts without prior OA, patients who were prescribed a GLP-1-RA demonstrated slightly greater decreases in BMI (-1.00; 95% CI, -1.06 to -0.96) at 1-year after the index visit compared with patients not prescribed a GLP-1-RA (-0.90; 95% CI, -0.94 to -0.84). However, in patients with a prior diagnosis of hip or knee OA, there was no difference noted in BMI change.

Conclusion: GLP-1-RAs may provide direct disease-modifying behaviors in patients with preexisting OA diagnosis, per a reduced risk of conversion to TJA not attributable to weight loss. Further investigation is also needed to elucidate the association between GLP-1-RA use and the increased incidence of OA diagnosis and conversion to TKA in patients with no preexisting OA diagnosis.