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1.
Background
Whether early or delayed surgical intervention in patients with multi-ligament injuries results in better outcomes, is of current and controversial debate.Purpose
The purpose of this study was to perform a meta-analysis comparing early versus late surgical treatment of multi-ligament knee injuries.Methods
We performed a systematic review of Medline, Embase, Scopus, and Google Scholar to identify relevant studies in the English and German literature. Eligibility criteria included studies comparing early or delayed surgical interventions for multi-ligament knee injuries, with a minimum follow-up of two years, reporting the primary clinical outcome using a validated functional scoring system and range of motion. Exclusion criteria were patients treated with multi-trauma, head injury, non-union, lower extremity fractures, or a documented history of previous knee injuries. Publication bias was assessed by funnel plot, and the risk of bias was established using the Cochrane Collaboration's risk of bias tool. Heterogeneity was assessed using χ2 and I2 statistic.Results
Eight studies (n = 260 patients) were included in the analysis. 149 patients were treated early with a mean of 10.6 days; 111 patients were treated late with a mean of 294 days. The pooled estimate for clinical outcome demonstrated that early surgery resulted in significantly higher Lysholm scores (SMD 0.669, 95% CI: 0.379 to 0.959, p = 0.0001, I2 = 0%). Thirty-one per cent of all patients with early surgery had a normal or near normal knee, whereas only 15% of patients with late reconstruction reported the knee to be normal or near normal. The pooled estimates for total ROM did not demonstrate a significant difference between the groups (SMD 0.113, 95% CI: ? 0.271 to 0.498, p = 0.564, I2 = 35.57%).Conclusions
The results of this meta-analysis suggest that early surgical intervention in multi-ligament injuries of the knee produces a significantly superior clinical outcome, compared to late reconstruction. Although an overall trend of improved total range of knee motion was also demonstrated, this was very small and unlikely to be clinically relevant.Level of evidence
Level 4; Systematic review and meta-analysis. 相似文献2.
Makoto Asaeda Masataka Deie Naoto Fujita Yoshifumi Kono Chiaki Terai Wataru Kuwahara Hodaka Watanabe Hiroaki Kimura Nobuo Adachi Toru Sunagawa Mitsuo Ochi 《The Knee》2017,24(2):280-288
Background
The aim of our study was to evaluate the effects of gender on recovery of knee joint biomechanics over the stance phase of gait after reconstruction of the anterior cruciate ligament (ACL).Methods
Gait parameters and knee joint kinematics and kinetics were compared in 32 patients (16 male and 16 female) who underwent ACL reconstruction for a unilateral ACL deficiency, with comparison to an age-, height-, and weight-matched Control group. Knee flexion, adduction and tibial rotation angles were measured and knee extension and abduction moment was calculated by inverse dynamics methods.Results
Females exhibited more tibial external rotation, in both the Control and ACL groups (P < 0.05), which was not changed after ACL reconstruction. Prior to reconstruction, sagittal plane biomechanics were changed, in both males and females, compared to the Control groups (P < 0.05). These abnormal sagittal plane mechanics were recovered at 12 months, but not six months post-reconstruction.Conclusions
We identified gender-based differences in tibial rotation that influenced the kinematics and kinetics of the knee over the stance phase of gait, both pre-operatively and post-ACL reconstruction. Evaluation of biomechanical effects of ACL injury, before and after reconstruction, should be separately evaluated for females and males. 相似文献3.
Ryan T. Lewinson Chad P. Maag Victor M.Y. Lun J. Preston Wiley Chirag Patel Darren J. Stefanyshyn 《The Knee》2017,24(1):31-39
Background
Clinical effectiveness of lateral wedges for knee osteoarthritis is inconsistent across studies. One explanation is that knee loading is not fully described by the peak frontal-plane knee moment. The purpose of this study was to propose a 3D resultant approach to describing moments at the knee and evaluate how this moment changes in response to lateral wedges.Methods
Walking gait analysis was performed on 20 individuals with knee osteoarthritis, in their own shoes, with and without a six millimeter lateral wedge insole. Frontal-plane and 3D resultant moments were calculated for each participant and footwear condition. Paired t-tests identified differences between footwear conditions, correlations identified relationships between frontal-plane and 3D resultant moments, and regressions assessed relationships between moments and pain.Results
Significant reductions to peak frontal-plane moments (p = 0.001) and 3D resultant moments at the same time point (p = 0.042) were observed with lateral wedges. While an overall significant correlation was observed between change in frontal-plane moments and change in 3D resultant moments with a lateral wedge (r = 0.68, p = 0.001), 5/20 participants experienced disparate results where the frontal-plane moment was reduced yet the 3D moment increased.Conclusions
While lateral wedges alter frontal-plane moment magnitude, the direction of change does not always correspond to the direction of change observed in the 3D resultant moment. Thus resultant knee load may sometimes increase with lateral wedges.Clinical relevance
Future prospective studies should evaluate if changes in 3D resultant moments, and thus total knee load, offer an explanation as to why some participants do not experience clinical benefit from lateral wedges. 相似文献4.
Background
There are unanswered questions about knee–ankle alignment after total knee arthroplasty (TKA) for varus and valgus osteoarthritis (OA) of the knee. The aim of this retrospective study was to assess knee–ankle alignment after TKA.Methods
The study consisted of 149 patients who had undergone TKA due to varus and valgus knee OA. The alignment and angles in the selected knees and ankles were measured on full-length standing anteroposterior radiographs, both pre-operatively and post-operatively. The paired t-test and Pearson's correlation tests were used for statistical analysis.Results
The results showed that ankle alignment correlated with knee alignment both pre-operatively and postoperatively (P < 0.05). The pre-operative malalignment of the knee was corrected (P < 0.05), and the ankle tilt angle was accordingly improved in the operative side after TKA (P < 0.05). In addition, TKA had little effect on knee–ankle alignment on the non-operative side (P > 0.05).Conclusion
These findings indicated that routine TKA could correct the varus or valgus deformity of a knee, and improve the tilt of the ankle. Ankle alignment correlated with knee alignment both pre-operatively and postoperatively. Both pre-operative knee and ankle malalignment can be simultaneously corrected following TKA.Level of evidence
Level III. 相似文献5.
Karin Mani William F. Brechue Bernd Friesenbichler Nicola A. Maffiuletti 《The Knee》2017,24(2):237-242
Background
Conventional one-legged hop tests simply evaluate the total hop distance, thus neglecting important temporal and spatial parameters related to the strategy of execution, such as foot contact time.Aim
To examine the validity and reliability of an instrumented one-legged hop test, the “four hops, three contacts” (4H3C) test, in patients with knee injuries.Methods
The 4H3C test consists of four consecutive one-legged hops, of which individual hop distance and foot contact time are recorded by a validated floor-based photocell system. We examined the test–retest reliability, discriminant validity (involved vs. uninvolved side) and convergent validity (relation with maximal voluntary strength) of consecutive hop distance and foot contact time parameters in 50 patients with unilateral knee injuries.Results
Test–retest reliability was very high for hop distance (intraclass correlation coefficients: 0.91 to 0.97) and high for contact time variables (intraclass correlation coefficients: 0.75 to 0.88). The difference between the involved and the uninvolved side was significant for all hop distance and contact time parameters (p < 0.05). Maximal voluntary strength was correlated to both hop distance (r = 0.67; p < 0.001) and contact time (r = ? 0.42; p < 0.01) variables.Conclusion
The 4H3C is a valid and reliable test for the evaluation of single hops in patients with knee injuries and may be useful in sport and clinical settings. The interpretation of foot contact time data requires however some caution. 相似文献6.
Aim
(1) Characterize knee joint moments and peak knee flexion moment timing during kneeling transitions, with the intent of identifying high-risk postures. (2) Determine whether safety footwear worn by kneeling workers (construction workers, tile setters, masons, roofers) alters high flexion kneeling mechanics.Methods
Fifteen males performed high flexion kneeling transitions. Kinetics and kinematics were analyzed for differences in ascent and descent in the lead and trail legs.Results
Mean ± standard deviation peak external knee adduction and flexion moments during transitions ranged from 1.01 ± 0.31 to 2.04 ± 0.66% body weight times height (BW 1 Ht) and from 3.33 to 12.6% BW 1 Ht respectively. The lead leg experienced significantly higher adduction moments compared to the trail leg during descent, when work boots were worn (interaction, p = 0.005). There was a main effect of leg (higher lead vs. trail) on the internal rotation moment in both descent (p = 0.0119) and ascent (p = 0.0129) phases.Conclusion
Peak external knee adduction moments during transitions did not exceed those exhibited during level walking, thus increased knee adduction moment magnitude is likely not a main factor in the development of knee OA in occupational kneelers. Additionally, work boots only significantly increased the adduction moment in the lead leg during descent. In cases where one knee is painful, diseased, or injured, the unaffected knee should be used as the lead leg during asymmetric bilateral kneeling. Peak flexion moments occurred at flexion angles above the maximum flexion angle exhibited during walking (approximately 60°), supporting the theory that the loading of atypical surfaces may aid disease development or progression. 相似文献7.
Matthew T. Houdek Maurizio Scorianz Cody C. Wyles Robert T. Trousdale Franklin H. Sim Michael J. Taunton 《The Knee》2017,24(4):851-855
Background
Pigmented villonodular synovitis (PVNS) is a rare, benign proliferation of the synovium, commonly affecting the knee. Arthroplasty can successfully manage arthrosis in this population; however, outcome data is limited. The purpose of this study was to investigate the oncologic and functional outcome of patients undergoing total knee arthroplasty (TKA) in the setting of PVNS.Methods
48 patients were identified at our institution with histologically confirmed PVNS that subsequently received TKA. The cohort consisted of 28 females and 20 males with a mean age and body mass index of 61 years and 29.2 kg/m2. 37 patients had “active” disease, defined as diffuse in 40 patients and focal in eight. Mean follow-up was 14 years.Results
The 10-year disease free-survival was 88%. Recurrence occurred in 6 patients and was treated with synovectomy and revision arthroplasty (n = 4), local excision (n = 1) and transfemoral amputation (n = 1). 25 patients sustained at least 1 complication, most commonly decreased knee range of motion. Complications resulted in revision TKA in 10 patients (21%). There was no difference (P = 0.74) between mean pre- and postoperative ROM; however, there was a significant reduction in the number of patients with a flexion contracture > 15° (P = 0.03). The mean Knee Society score and functional score significantly improved following surgery (P < 0.001).Conclusions
This study indicates arthroplasty in the setting of PVNS improves patient function and reduces the presence of flexion contractures. Patients with a history of PVNS should be cautioned when undergoing arthroplasty on the elevated risk of subsequent procedures.Level of evidence
Level III. 相似文献8.
Suguru Nakamura Yukihide Minoda Shigeru Nakagawa Yoshinori Kadoya Susumu Takemura Akio Kobayashi Shigekazu Mizokawa Yoichi Ohta Sinji Takahashi Kazumasa Yamamura Hiroaki Nakamura 《The Knee》2017,24(2):434-438
Background
The medial pivot total knee prosthesis with alumina ceramic femoral components was introduced to reproduce physiological knee kinematics and reduce polyethylene wear. The five-year clinical outcomes of alumina medial pivot total knee arthroplasties (TKA) have previously been reported. The purpose of this study was to provide the longer-term clinical results at a minimum follow-up of 10 years.Methods
The clinical results of 70 alumina medial pivot TKA in 51 consecutive patients, with a minimum follow-up period of 10 years, were evaluated.Results
Mean follow-up was 11.8 years (range 10 to 13). Alumina medial pivot TKAs improved the patients' Knee Society knee scores, function scores, and postoperative ranges of motion compared with their pre-operative statuses (P < 0.05 for each). Revision surgery was required in one knee due to a postoperative fracture of the tibial plateau after a fall that occurred two years postoperatively. Osteolysis and femoral component loosening was identified in one case after the initial five-year time point of analysis. The survival rate was 99.1% at 10 years.Conclusions
This study demonstrated excellent clinical results for patients receiving the alumina medial pivot prosthesis at a minimum follow-up period of 10 years. 相似文献9.
Background
The purpose of this study was to compare the clinical outcomes and second-look arthroscopic findings of remnant preservation technique with those of conventional anterior cruciate ligament (ACL) reconstruction in single bundle ACL reconstructions.Methods
One hundred sixty two consecutive patients underwent ACL reconstruction by one surgeon, with 93 patients receiving remnant preservation technique (Group A) and 69 patients receiving conventional ACL reconstruction (Group B). The mean follow-up was 15 months. Clinical outcomes were assessed using Lysholm scores and the International Knee Documentation Committee form (IKDC form) evaluation. Post-operative knee stability was evaluated through manual knee laxity evaluation, pivot-shift test, and a Telos device.Results
Differences in post-operative stability (manual knee laxity, pivot shift test and Telos device) were not significant between the groups (p = 0.681, p = 0.610, p = 0.696). And also no significant differences were noted with respect to the IKDC form and the latest Lysholm scores. But in the second-look arthroscopic findings, synovial coverage was confirmed to be excellent in 36% (22/61) of Group A patients and 23% (7/30) of Group B patients.Conclusions
ACL reconstruction with both techniques was found to result in acceptable stability, clinical outcomes and second-look arthroscopic findings. With regard to synovial coverage, the remnant reservation techniques were found to be superior to conventional ACL reconstruction.Level of evidence
Level III, retrospective comparative study. 相似文献10.
Emanuele Maiorano Bruno Dino Bodini Francesca Cavaiani Catia Pelosi Valerio Sansone 《The Knee》2017,24(1):116-120
Background
To identify variables influencing length of stay (LOS) and short-term functional outcome in patients undergoing total knee arthroplasty (TKA). A secondary aim was to verify the effect of the same variables on blood management and the rate of postoperative infection.Method
We retrospectively reviewed 353 patients, 258 females and 85 males, who underwent primary TKA in a single specialist orthopaedic centre. Anamnestic and anthropometric data and the Modified Barthel Index Score (MBI) at admission were recorded, and entered as covariates in four longitudinal regression models, separately carried out for female and male groups. The regression outcomes were LOS, MBI change, rate of infection and blood transfusion. Statistical significance was set at p < 0.05.Results
Mean LOS was 15.93 ± 4.97 days for females and 13.41 ± 3.63 days for males. Mean MBI improvement was statistically significant in both groups. 46.3% females and 29.4% males needed at least one blood transfusion, while infections complicated the hospitalization in 14.6% and 4.7% cases respectively. Among females, older age was predictive for a longer LOS and poorer post-operative MBI improvement. Lower MBI at admission was related to a longer LOS and to a higher risk of post-surgical infections in the female group, but to a better improvement of functional outcome in both groups. A higher rate of blood transfusion postoperatively was associated to lower pre-surgical haemoglobin levels and, for females, to older age and lower BMI.Conclusion
An accurate characterization of TKA candidates might help in reducing LOS and in achieving a better early functional outcome. 相似文献11.
Background
In current practice, anterior cruciate ligament (ACL) tears can be diagnosed using several devices to measure anterior tibial translation and rotational knee laxity, but these measures are never collected together. The Rotab®, which yields simultaneous measurements of anterior tibial translation and passive lower limb rotation under stress, would therefore be advantageous in current practice, but its reliability has never been tested.Aim of study
To evaluate the accuracy and reliability of the Rotab® compared to the reference system, radiostereometric analysis (RSA).Methods
This anatomical study was conducted on 14 lower limbs collected from fresh cadavers. Simultaneous measurements of anterior tibial translation and rotation were obtained with both systems, with antero-posterior (AP) forces of 134 N and 250 N using the Rotab®. Measurements were made on intact ACL and then repeated after ACL section. Variables were analyzed in univariate analysis by ANOVA, and the intraclass correlation coefficient (ICC) between the systems was determined by the Bland and Altman method.Results
The difference between the two methods for evaluating anterior tibial translation was 0.05 ± 0.98 mm at 134 N and 0.29 ± 1.04 mm at 250 N. The correlation between the tests was high (r134 = r250 = 0.97, p = 0.8). The difference between the two methods for rotational laxity was 0.69 ± 2.7° at 134 N and 0.5 ± 0.6° at 250 N. The Rotab® showed a significant difference only at 250 N for rotational laxity after the ACL tear.Conclusion
The Rotab® is a reliable device to measure rotational laxity coupled with anterior translation of the knee. 相似文献12.
Christopher J. Maugans Matthew G. Scuderi Frederick W. Werner Stefanos F. Haddad John P. Cannizzaro 《The Knee》2017,24(2):264-270
Purpose
The purpose of this study was to determine whether a modified step-cut tibial tubercle osteotomy (Maquet–Fulkerson hybrid) might produce comparable or better results than a standard oblique anteromedialization tibial tubercle osteotomy (Fulkerson type) and thus warrant the surgical need for additional cuts.Methods
Six pairs of cadaveric knees were evaluated prior to and after tibial tubercle osteotomies. Simulation was done via a shallow knee bend simulator through 20 to 70° of knee flexion for the intact specimens and following the surgical procedures. The variables tested were trochlear contact forces and pressures and patellar motion.Results
Testing showed a decreased force (P = 0.027), peak contact pressure (P = 0.01) and contact area (P = 0.034) on the lateral trochlea of the femur for both types of osteotomies. There was no significant difference in the lateral femoral peak pressure or in the medial femoral peak pressure between the oblique cut and the step-cut. Also, there was no difference in patellar motion after either procedure.Conclusion
We conclude that both osteotomies decrease lateral patellofemoral trochlear pressure. The oblique osteotomy may decrease lateral pressure to a greater extent. Regarding biomechanical testing, there was no demonstrable advantage to performing a step-cut osteotomy. 相似文献13.
Won Sik Choy Kwang Won Lee Ha Yong Kim Kap Jung Kim Young Sub Chun Dae Suk Yang 《The Knee》2017,24(4):829-836
Background
Because Asian populations have different lifestyles, such as squatting and sitting on the floor, from those of Western populations, it is possible that the clinical results and survival rate of unicompartmental knee arthroplasty (UKA) for Asian patients may be different. This study described outcomes of mobile bearing medial UKA for Korean patients.Methods
A total of the 164 knees treated with mobile bearing UKAs in 147 patients (14 males and 133 females) were reviewed. The mean follow-up period was 12.1 years (range 10.1–14).Results
The clinical outcomes, such as the Hospital for Special Surgery Knee score, the Oxford Knee Score and the Knee Society rating system, showed statistically significant improvement from pre-operative to final follow-up (P < 0.05). A total of 26 UKAs (15.8%) required revision; the most common reason was bearing dislocation. The 95% confidence interval of survival rate at 12 years was 84.1%, with revision for any reason as the end point.Conclusions
Minimally invasive mobile bearing UKA in Asian patients who required high degrees of knee flexion showed rapid recovery and good clinical outcome. However, they also showed relatively high rates of bearing dislocation and aseptic loosening. Therefore, mobile bearing UKA should only be performed in patients whose lifestyle involves high flexions after carefully considering these risks and benefits. 相似文献14.
Jodie A. McClelland Kate E. Webster Alankar A. Ramteke Julian A. Feller 《The Knee》2017,24(3):651-656
Background
Computer-assisted navigation in total knee arthroplasty (TKA) reduces variability and may improve accuracy in the postoperative static alignment. The effect of navigation on alignment and biomechanics during more dynamic movements has not been investigated.Methods
This study compared knee biomechanics during level walking of 121 participants: 39 with conventional TKA, 42 with computer-assisted navigation TKA and 40 unimpaired control participants.Results
Standing lower-limb alignment was significantly closer to ideal in participants with navigation TKA. During gait, when differences in walking speed were accounted for, participants with conventional TKA had less knee flexion during stance and swing than controls (P < 0.01), but there were no differences between participants with navigation TKA and controls for the same variables. Both groups of participants with TKA had lower knee adduction moments than controls (P < 0.01).Conclusions
In summary, there were fewer differences in the biomechanics of computer-assisted navigation TKA patients compared to controls than for patients with conventional TKA. Computer-assisted navigation TKA may restore biomechanics during walking that are closer to normal than conventional TKA. 相似文献15.
George A. Macheras Spyridon P. Galanakos Panagiotis Lepetsos Panagiotis P. Anastasopoulos Stamatios A. Papadakis 《The Knee》2017,24(2):447-453
Background
The ideal total knee arthroplasty (TKA) should provide maximum range of motion and functional stability for all desired daily activities and, if possible, to replicate normal knee kinematics and function. The ADVANCE® Medial Pivot (AMP) Knee System was designed with a highly congruent medial compartment and a less conforming lateral compartment to more closely mimic the kinematics of the normal knee and to offer more stability through out of range of motion (ROM). The purpose of this study was to evaluate the long-term clinical and radiographic outcomes of this TKA system.Methods
Three hundred and twenty-five (325) patients (347 knees) with knee osteoarthritis underwent a TKA using the AMP prosthesis in our Department. For evaluation, objective and subjective clinical rating systems along with radiograph series were used. The average follow-up was 15.2 years.Results
All patients showed a statistically significant improvement (p < 0.0005) in the Knee Society clinical rating system, Western Ontario and McMaster Universities Osteoarthritis Index questionnaire, SF-12® questionnaire, and Oxford knee score. The majority of patients (94%) were able to perform age-appropriate activities with a mean knee flexion of 120° (range, 105°–135°) at final follow-up. Survival analysis showed a cumulative success rate of 98.8% at 17 years.Conclusion
The obtained results demonstrate excellent long-term clinical outcome for this knee design. 相似文献16.
Sam K Yasen Zakk M Borton Alistair I Eyre-Brook Harry C Palmer Stewart T Cotterill Mike J Risebury Adrian J Wilson 《The Knee》2017,24(1):55-62
Background
This paper reports the outcomes of patients undergoing ACL reconstruction using a TransLateral single bundle, all-inside hamstring technique at a minimum of two year follow-up.Methods
The semitendinosus alone is harvested, quadrupled and attached in series to two adjustable suspensory fixation devices. Femoral and tibial sockets are produced using a retrograde drill. The graft is deployed, fixed and tensioned on both tibia and femur. Patients were evaluated preoperatively using the KOOS, Lysholm and Tegner scores and at six, 12 and 24 months postoperatively. Objective assessment of knee laxity was performed using the KT-1000 along with goniometric measurement of range or motion.Results
One hundred and eight patients, mean age 30.9 years (range 15 to 61) were included. Mean follow-up 49.8 months (range 30–66). The mean increase in KOOS at two years was 30.3 points; Lysholm, 33.1 points; Tegner Activity scale, 2.0 levels. These were all statistically significant (p < 0.001). Range of motion in the reconstructed knee approximated the uninjured knee by 12 months and was restored by two years. KT-1000 showed significant reduction in side-side difference to no more than 2.4 mm at all postoperative time points (p < 0.001). Re-rupture rate in this series was 6.5%, all following episodes of significant additional postoperative trauma to the knee.Conclusions
TransLateral all-inside ACL reconstruction demonstrates good medium term subjective and objective outcomes with a low complication and failure rate. 相似文献17.
Michael Worlicek Benedikt Moser Günther Maderbacher Raphael Zentner Florian Zeman Joachim Grifka Armin Keshmiri 《The Knee》2017,24(4):711-717
Background
Patellofemoral instability may lead to osteoarthritis, anterior knee pain, and patellar luxation. The purpose of this study was to conduct an exploratory investigation into the difference of patellar kinematics of healthy knees during extension/flexion cycles in neutral, varus and valgus alignment.Methods
The three-dimensional patellar kinematics of 10 lower extremities of whole body cadavers were examined during passive motion, in neutral position, and under valgus and varus stress. Kinematics was recorded by means of an optical computer navigation system.Results
The study samples did not significantly differ with regard to mediolateral patellar shift and epicondylar distance. Varus stress led to significantly higher external rotation than valgus stress (P = 0.04) and to a significantly higher lateral patellar tilt than neutral position (P = 0.016) and valgus stress (P = 0.016). No difference was found between valgus stress and neutral position.Conclusion
Analysis of tibiofemoral alignment alone is insufficient for predicting patellar kinematics. 相似文献18.
Yong-Hao Pua Jia-Ying Ho Suelyn Ai-Sim Chan Shin-Jiun Khoo Hwei-Chi Chong 《The Knee》2017,24(5):1067-1074
Background
Although isokinetic dynamometry often serves as a reference to assess the concurrent validity of weight-machine isotonic strength testing, it is unknown whether isokinetic knee strength is associated with knee function and activity level more strongly than isotonic knee strength in patients with an anterior cruciate ligament reconstruction (ACLR). This study aimed to compare the associations of isokinetic and isotonic knee strength with knee function and work-and-sports activity levels in patients with ACLR.Methods
One-hundred and six patients with a unilateral ACLR participated. At three months post-ACLR, isokinetic quadriceps and hamstrings strength was measured using an isokinetic dynamometer whilst isotonic strength was measured using weight machines. At six months post-ACLR, patients performed the single-leg hop-for-distance test. Self reported knee function and work-and-sports activity levels were assessed by the Lysholm Knee Score and Tegner Activity Score, respectively.Results
In multivariable analyses, isotonic and isokinetic quadriceps strength limb symmetry indices (LSIs) were significantly associated with all outcomes (P ≤ 0.03) and had comparable predictive performance. Isotonic and isokinetic hamstrings strength LSIs were significantly associated with Lysholm scores (P ≤ 0.03) and isotonic hamstrings strength was additionally significantly associated with hop-for-distance LSI (P = 0.01).Conclusions
Weight machine-derived isotonic quadriceps strength was independently and consistently associated with knee function and work-and-sport activity level post-ACLR. Isokinetic knee strength was not more strongly associated than isotonic knee strength with the various outcomes. These findings have logistic and economic implications because the isokinetic dynamometer system is relatively expensive and its operation requires more logistic effort and technical skills. 相似文献19.
20.
Manabu Kawata Yusuke Sasabuchi Hiroshi Inui Shuji Taketomi Hiroki Matsui Kiyohide Fushimi Hirotaka Chikuda Hideo Yasunaga Sakae Tanaka 《The Knee》2017,24(5):1198-1205