Lee, Yong Sik;Lee, Soo Won;Seo, Byung Ho;Kim, Yoon Gi
Journal of the Korean Arthroscopy Society
/
v.17
no.1
/
pp.31-37
/
2013
Purpose: This study performed to compare degree of joint stiffness and clinical results between early and delayed reconstruction of acute posterior cruciate ligament (PCL) injuries. Materials and Methods: Thirty-two Patients who underwent PCL reconstruction between March 2008 and October 2011 enrolled this study. We performed transtibial single bundle reconstruction using the allo-achilles tendon in all cases. We divided the patient into two groups, early reconstruction group underwent surgery before a week, delayed reconstruction group underwent surgery after 3 weeks, before 6 weeks. All the patients underwent aggressive joint motion exercise till surgery and enrolled post operative rehabilitation program. We checked posterior drawer stress radiography, range of motion, the Lysholm score, the International Knee Documentation Committee (IKDC) score and the Tegner score to evaluate the results. Results: At the final follow up the Lysholm score was 92.1 in the early group and 93.8 in the delayed group. All the cases were rated above B (near normal) on IKDC score (p=0.808, p=0.722). The Tegner score was 6.6 in the early reconstruction group and 6.2 in the delayed group (p=0.480), The average of maximum flexion and extension angle was $133.9^{\circ}$, $1.4^{\circ}$ in the early group and $133.6^{\circ}$, $1.1^{\circ}$ in the delayed group (p=0.560, p=0.581), no complication such as deep vein thrombosis or infection, no difference in posterior drawer stress radiography (p=0.750). Conclusion: We could obtain satisfactory clinical results in both the early and delayed reconstruction groups of acute PCL injuries. Therefore, the early reconstruction of PCL performed before a week could be one of the treatment options for acute PCL injury.
Song Eun Kyoo;Lee Keun Bae;Shin Sang Gyoo;Kim Hyun Jong
Journal of Korean Orthopaedic Sports Medicine
/
v.1
no.1
/
pp.21-25
/
2002
Purpose: To evaluate the clinical results after anterior cruciate ligament (ACL) reconstruction with hamstring tendon and Ligament Anchor (LA) screw, which is newly designed for fixation of graft into femur. Materials and Methods: Fifty eight patients who were followed up at least more than 2 years after ACL reconstruction with four strands of Hamstring tendon and LA screw were included in this study. The graft was fixed with LA screw at femoral tunnel and with only bioabsorbable interference screw at tibial tunnel. The mean follow-up period was 28 months. The clinical results were evaluated by physical examination and Lysholm knee score. Widening of bony tunnel and anterior laxity difference compared with normal side by instrumented anterior laxity test with Telos(R) (Telos stress device; Austin & Associates, Inc., Polston, US) were evaluated. Results: The Lysholm knee score improved from 60.0 points preoperatively to 94.0 points at last follow up. On the Lachman test, there were mild (+) instability in 16 cases, moderate (++) in 24,severe (+++) in 18 preoperatively. 50 cases were converted to negative and 8 to mild instability at postoperative follow up. On instrumented anterior laxity test with Telos(R), difference between normal and affected knee on 20 lb was 12.9 mm in average preoperatively, and was decreased to 3.1mm at last follow-up. The femoral tunnel was widened from 10.6 mm postoperatively to 12.7 mm (21.1$\%$) at follow up on antero-posterior plane and from 10.7 mm to 12.4 mm (16.5$\%$) on lateral plane. Tibial tunnels was also widened from 9.8mm to 11.8mm (20.7$\%$) on antero-posterior plane and from 9.9mm to 11.7 mm ($18.9\%$) on lateral plane. Complications were: anterior knee crepitus in 17 case, quadriceps muscle atrophy(>3 cm) in 6, penetration of screw over the lateral femoral cortex in 5, saphenous nerve paresthesia in 2.Conclusions: ACL reconstruction with hamstring tendon and LA screw was one of the choice of grafts and fixation devices in restoring knee stability and in improving clinical results with little complications such as excessive widening of bony tunnel and anterior knee pain
Journal of the Korea Academia-Industrial cooperation Society
/
v.17
no.5
/
pp.522-529
/
2016
This study examined the effects of 4-weeks of backward walking exercise on ROM, VAS (Visual Analogue Scale) score and proprioception in anterior cruciate reconstruction patients. Fourteen subjects were randomly assigned to either a backward walking group (BWG, n=7) or a control group (CON, n=7) and then participated in rehabilitation program for 4 weeks. The ROM of the flexion significantly decreased in both groups (BWG, p<0.001 vs CON, p<0.01), while ROM of extension significantly decreased only in the BWG (p<.05) post exercise, but no significant difference was observed between groups. Additionally, VAS score decreased significantly in both groups (P<0.001) and BWG was lower than CON post exercise (p<0.001). Finally, proprioception decreased significantly in both groups (BWG, p<0.001 vs CON, p<0.05), but did not differ significantly between groups. These results suggest that the 4 week backward walking rehabilitation program improves ROM, VAS score, and proprioception and has positive effects on functional recovery of anterior cruciate ligament reconstruction patients.
Song Eun Kyoo;Yoon Taek Rim;Jung Jong Wook;Jeong Kwang Cheul
Journal of the Korean Arthroscopy Society
/
v.5
no.2
/
pp.69-73
/
2001
Purpose : To evaluate the clinical results and widening of bony tunnel after anterior cruciate ligament(ACL) reconstruction using hamstring tendon with Ligament Anchor(LA) screw, which is newly designed fur fixation of graft into femur. Materials and Methods : Fifty eight patients who were followed up at least more than 2 years after ACL reconstruction with four strands of Hamstring tendon were included in this study. The graft was fixed with LA screw at femoral tunnel and with bioabsorbable interference screw at tibial tunnel. The average period of follow-up was 28 months. The clinical results such as physical examination and Lysholm knee score and radiological results. widening of bony tunnel and instrumented anterior laxity test with $Telos^{\circledR}$(Telos stress device; Austin & Associates, Inc., Polston, US) were evaluated. Results . The Lysholm knee score was 60.0 in average preoperatively and improved to 94.0 in average at follow up. On the Lachman test, there were mild(+) instability in 16 cases, moderate(++) in 24, severe(+++) in 18 preoperatively. 50 cases were converted to negative and 8 to mild instability at follow up. On instrumented anterior laxity test with $Telos^{\circledR}$, side to side difference in 20 lb was 12.9mm in average preoperatively, and was decreased to 3.1mm in average follow-up. The femoral tunnel was widened from 10.6mm postoperatively to 12.7mm$(21.1\%)$ at follow up on antero-posterior plane and from 10.7mm to 12.4mm$(16.5\%)$ on lateral plane. Tibial tunnels was also widened from 9.8mm to 11.8mm$(20.7\%)$ on antero-posterior plane and from 9.9mm to 11.7mm$(18.9\%)$ in lateral plane. Conclusion : ACL reconstruction with hamstring tendon and LA screw was one of the choice of grafts and fixatives in restoring knee stability and in improving clinical results with little complications such as excessive widening of bony tunnel.
Song Eun Kyoo;Shim Sang Don;Kim Hyung Jong;Kim Hyung Won
Journal of the Korean Arthroscopy Society
/
v.6
no.2
/
pp.101-108
/
2002
Purpose: To evaluate the clinical results of anterior cruciate ligament (ACL) reconstruction and to know the results of physeal injury by transphyseal tunnel in adolescents who had remaining growth potential. Materials and Methods : This study involved 12 patients under 19 years old out of 445 patients, who underwent ACL reconstruction between 1993 and 2001. The mean age at the time of operation was 15.9 $(13.1\~16.9)$ years and fellow-up period was 45.1 $(24\~120.6)$ months in avrarge. Autologous quadrupled hamstring tendon was used as graft in 11 cases and bone-patellar tendon-bone in 1 case. Clinical results were evaluated by Lysholm Knee Scoring Scale, range of motion and return to preinjury sports activities. Radiologic results were evaluated by $Telos^{\circledR}$ device. Bone maturity were analyzed by chronological age, standing height and the width of growth plate in AP and lateral view of knee joint at preoperatively. The growth disturbances were evaluated by measuring femorotibial angle, anatomical and mechanical lateral distal femoral angle, mechanical medial proximal tibial angle and leg length and by comparing those of uninjured site in last follow-up teleoroentgenogram. Results : The mean Lysholm Knee score was 51 $(25\~63)$points preoperatively and 98 $(94\~100)$ points at last follow up. The mean anterior displacement of the tibia by using $Telos^{\circledR}$ device was improved from 13.5 $(6\~27)$ mm to 2.9 $(1\~4)$ mm and there were no significant instabilities of the knee in all cases. There were no leg length discrepancies over 1 cm and no statistically significant abnormal alignment of the knee joint in all cases. Conclusion: ACL reconstruction using transphyseal tunnel for restoring stability and knee function is assumed as a good mettled of treatment without significant leg length discrepancy and abnormal alignment of the knee joint.
Purpose: The purpose of this study was to investigate the distribution of the diameter of four strand autologous hamstring tendon and to identify the factors related to the diameter. Materials and Methods: Between December 2004 and July 2006, 66 patients underwent anterior cruciate ligament reconstruction using autologous hamstring tendon. Sixty one patients were male and the other 5 patients were female. Both semitendinosus and gracilis tendon were harvested in every case. Harvested two tendons were folded once together to create a four strand double loop graft and were passed through cylindrical sizer to measure their diameter. Parameters such as sex, age, height and weight were analyzed for their correlation with the diameter of the graft. Results: The diameter of the graft ranged from 6 mm to 10 mm. The graft with the diameter of 8 mm was most common and the average diameter of all the grafts was $7.85{\pm}0.92mm$. Seven patients (10.6%) had a graft with the diameter of 6 mm, which is considered too thin to be ideal one. No statistically significant correlation was found between age of the patient and the diameter of the graft. However, the diameter of the graft was significantly correlated with sex, height and weight of the patient. Female patients had a significant tendency to have thinner hamstring tendons. Both small height and light weight of the patients were correlated with thinner hamstring tendons significantly. Conclusion: Sex, height and weight of the patients were the factors that had a statistically significant correlation with the diameter of the graft. Being aware of the risk factors related with harvesting exceedingly thin hamstring tendon prior to anterior cruciate ligament reconstruction, one can utilize wide range of options in selecting an optimal graft.
Purpose: We used tibialis allograft for the reconstruction of ACL and used Hybrid femoral fixation utilizing $Endobutton^{(R)}$ and $Rigidfix^{(R)}$ for femoral fixation, and used $Retroscrew^{(R)}$ and additional fixation for tibial fixation to evaluate the clinical results. Materials and Methods: The ACL reconstruction were performed from February 2004 to February 2007 utilizing Hybrid femoral fixation and $Retroscrew^{(R)}$ and 32 patients, 32 cases which were available for year-long observation (12 to 25 months). The clinical results (Lysholm knee score, IKDC grade) and the radiologic results(bone tunnel expansion, Telos anterior displacement test) were evaluated. Results: The Lysholm knee score was improved from the average of $67.9{\pm}5.4$ points (range: 51~77) before operation and to $94.1{\pm}6.8$ points (range: 68~98) at the last follow up (p<0.05). 22 cases (69%) were evaluated normal (A), 9 cases (28%) were evaluated nearly normal (B) and only 1 case (3%) was evaluated not normal (C) at IKDC final evaluation and no case was evaluated abnormal. From $Telos^{(R)}$ stress x-ray evaluation, difference from the opposite knee was improved average 13.2 mm{\pm}5.8 (range: 6~21 mm) to average $3.4\;mm{\pm}2.8$ (range: 0~11 mm) after operation (p<0.05). The femoral and tibial tunnel were widened by 18.7% and 9.6% in the AP view and 12.4% and 8.5% in the lateral view, respectively (p<0.05). However, any statistic significance was not observed between bone tunnel expansion and knee joint functions (p>0.05). Conclusion: An ACL reconstruction with tibialis allograft using Hybrid femoral fixation and $Retroscrew^{(R)}$ enabled anatomical fixation of the graft tendon with satisfactory clinical results.
Purpose: To evaluate status of reconstructed ACL and changes around graft through second-look arthroscopy after arthroscopic reconstruction of the ACL with autograft tendons. Material and Methods: Between Jun. 2003 and Feb. 2007, the second look arthroscopy was performed on 22 cases. Second-look arthroscopy was conducted on average 15.1 $(7\sim31)$ months after reconstruction. 15 cases received hamstring tendon autograft, 7 cases received bone-patellar tendonbone autograft. We measured graft tension using displacement by probing, synovial coverage by visual analysis at second-look arthroscopy The assay in Lysholm score, Lachmann test and KT-2000 arthrometer were evaluated status of reconstructed ACL. Results: The hamstring tendon group showed normal tension in 11 cases and lax tension in 4 cases. The patellar tendon group showed normal tension in 3 cases, lax tension in 2 cases and partial tear in 2 cases. In the hamstring tendon group, synovial coverage was good in 11 cases, half in 3 cases and pale in 1 case, and the bone-patellar tendon-bone group was good in 4 cases and half in 3 cases. The patellar tendon group was superior to the hamstring tendon group in Lysholm score (p<0.05), but insignificance difference in KT-2000 arthrometer results statistically. Conclusion: The hamstring tendon group was superior to the bone-patellar tendon-bone group in second-look arthroscopy after ACL reconstruction with autograft tendons results, but long term follow up will be necessary to further evaluated.
Park, Seongkyu;Minar, Maruf;Hwang, Yawon;Kim, Somin;Park, Minhyeok;Choi, Seok-Hwa;Kim, Gonhyung
Journal of Veterinary Clinics
/
v.30
no.5
/
pp.346-352
/
2013
The study was aimed to investigate the influence of diode laser on osteoarthritis (OA) of stifle joint induced by anterior cruciate ligament transection (ACLT). Sixty 10-week-old male Sprague-Dawley rats were used in this study. Right stifle joint was operated to create ACLT or sham. There were five study groups: control, Sham, ACLT, ACLT + Laser irradiation (ACLT+L) and ACLT + meloxicam administration (ACLT+M). Low-level laser therapy (LLLT) was applied at the operated stifle joint twice a week using an 808-nm indium-gallium-arsenide (InGaAs) diode laser during 8-week experimental period. Radiographical, gross morphological and histopathological findings were examined at 2, 4 and 8 weeks post-surgery. Radiography, CBC and chemistry tests showed no significant difference between groups. ACLT+L group showed remarkable cartilage damages compared with sham group morphologically and histopathologically at 2, 4 and 8 weeks after surgery. ACLT+M group also had more cartilage damages compared with sham group. Low-level laser therapy (LLLT) showed limitation to prevent progression of OA in the rat anterior cruciate ligament transection models; on the contrary it accelerated cartilage damage. It is assumed that the aggravating results of LLLT in this study might be due to excessive unstable movement of stifle joint from the pain-relieving effect of LLLT, rather than direct damaging effect of irradiation since LLLT did not affect cell viability.
Purpose: To compare the clinical results after reconstruction of the anterior cruciate ligament (ACL) between above the 50 years old patients and below the 50 years old patients retrospectively. Materials and Methods: The results obtained 18 patients above 50 years old (mean age 55.1) and 198 patients below 50 years old (mean age 31.2) who underwent reconstruction of the ACL between July 2004 and April 2008. Clinical evaluation was performed with the International Knee Documentation Committee (IKDC) and Lysholm knee score scale. Anterior displacement of knee was measured by KT-2000 arthrometer. Results: Lysholm scores improved from 69.5 to 93.6 in patients above 50 years old, from 69.0 to 92.6 in patients below 50 years old (p<0.05). According to IKDC score, results more than nearly normal was 83% (15 cases) in patients above 50 years old, 86% (170 cases) in patients below 50 years (p<0.05). The mean difference of anterior displacement measured by KT-2000 was decreased from 7.4 mm to 2.2 mm in patients above 50 years old, from 7.1 mm to 2.0 mm in patients below 50 years old (p<0.05). Conclusion: There was no significant difference between the patients above 50 years old and below 50 years old. In patients above 50 years old, the reconstruction of ACL obtained satisfactory results.
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