The Effect Of The Peroneus Longus Tendon Which Was Removed The Anterior Half Both On The Abduction And Flexion Of Ankle And On The Foot Arch

Objective:To investigate the effect of removing the anterior half longus tendon both on ankle plantar flexion and abduction and on foot arch.Materials:Fifteen patients who underwent reconstruction of the medial collateral ligament using the tendon of the peroneus from October 2012 to June 2016 were included in the statistical analysis.Among them,nine patients were medial collateral ligament injuries,six patients both were medial collateral ligament injuries and posterior cruciate ligament injuries.They were five males and ten females.The average age was tirty-one years old between eighting and forty-seven years old.All the patients used half the peroneus longus to reconstruct the Anterior cruciate ligament,and the other side of the lower limb anatomy and function were normal.Inclusion criteria:?1?The reconstruction recovery time of the patients of single medial collateral ligament injury wereone year or more;?2?The reconstruction recovery time of the patients of the injury both on Anterior cruciate ligament and medial collateral ligament were two years or more;?3?The reconstruction of the ligament is selected on the same side of the lower limb peroneus tendon?4?All the patients test the Lysholm score^[10]and IKDC2000 knee function score^[11]before the experiment,and the results Lysholm score were above 90 points,IKDC score were above 85points.Exclusion criteria:?1?The reconstruction recovery time of the single medial collateral ligament injury were less than one year;?2?The reconstruction recovery time of the injury both on Anterior cruciate ligament and medial collateral ligament were less than two years;?3?All the patients test the Lysholm score^[10]and IKDC2000 knee function score^[11]before the experiment,and the results Lysholm score were less than 90 points,IKDC score were less than 85 points.Methods:First,Kofoed scores?including pain,function,and activity?were calculated for the uninjured side and the normal side.Out of 100 scores,including pain?50 points?:50 points for painless walking;40 points for walking starting pain;35 points for walking pain;Weight-bearing pain 25 points;Each weight-bearing pain15 points;Check the pain or spontaneous pain 0 points.Function?out of 30 points?:walking with toes 3 points;walking with heel 3 points;normal rhythm up and down 6points;walking with no auxiliary 6 points;without orthopedic foot support 6 points.Activity?out of 20,as extra points?:dorsal extension>10°5 points;dorsiflexion 5°⁹°3 points;dorsiflexion<5°1 point;plantar flexion>30°5 points;plantar flexion 15°²9°3 points;plantar flexion<15°1 point;spin after>30°5 points;spin 15°²9°3 points;<15°1 point;pronation>20°5 points;pronation 10°¹9°3 points;pronation<10°1 point;negative position eversion valgus<5°2points;negative position eversion 5°-10°1 point;negative position eversion>10°0 points;negative position negative inversion<3°2 points;negative position negative inversion 4°⁷°1 point negative position negative inversion>7°0.Results:75-89 points for the excellent,50⁷4 points for the good,less than 50 points for the poor.And AOFAS score including:pain,function,and ankle and hind paw alignment.Including pain?40 points?,functional and voluntary activities and support activities?10 points?,maximum walking distance?5 points?),Ground walking?5points?,abnormal gait?8 points?,anteroposterior activity?flexion and extension??8points?,hindfoot activity?varus and valgus??6 points?,ankle-hind foot stability?varus-valgus??8 points?and the foot on the line?10 points?.Results Evaluation:90 to 100points for the excellent;75 to 89 points for good;50 to 74 points for normal;50 points for the poor.Secend,use Germany Zebris plantar pressure distribution measurement system to collect the parameters of plantar pressure;Finally,with the Italian runner treadmill combined and the British VICON infrared three-dimensional motion capture system to detect patients ankle plantar flexor Show angle changes when they were walking and jogging.And the data obtained using SPSS22.0 software for statistical analysis.Results:The Kofoed scores of ipsilateral and contralateral ankle were 97.67+3.72and 98.66+3.51 respectively,with no statistical difference.The AOFAS scores were96.67+4.88 and 98.66+3.52 respectively,with no statistical difference.There was no statistical difference in plantar pressure of ipsilateral and contralateral anterior limbs between 144.59+53.88 and 156.04+53.0;there was no significant difference between posterior plantar pressure of 196.84+38.0 and 206.96+68.62.The maximum plantar flexion angles of 22.7+5.46 and 23.05+4.89 at normal and contralateral sides were not statistically different;the maximal flank angles were 1.04+1.34 and 1.84+1.29 with no statistical difference.The maximum plantar flexion angles at ipsilateral and contralateral at jogging were 23.33+3.93 and 24.28+3.02,respectively,with no statistical difference;the maximum abduction angle was 1.00+0.69 and 1.65+1.54 with no statistical difference.Conclusions:Excision of the anterior half of the longus tendon had no effect on plantar flexion and arch of the ankle.