Lateral Patellofemoral Ligament Reconstruction With a Hamstring Allograft

2021 ◽  
Vol 1 (6) ◽  
pp. 263502542110336
Author(s):  
Hailey P. Huddleston ◽  
Navya Dandu ◽  
Blake M. Bodendorfer ◽  
Adam B. Yanke
Keyword(s):  
Soft Tissue ◽  
Range Of Motion ◽  
Patellar Instability ◽  
Ligament Reconstruction ◽  
Quadriceps Tendon ◽  
Iliotibial Band ◽  
Lateral Retinacular Release ◽  
Full Extension ◽  
Lateral Epicondyle ◽  
Patellar Eversion

Background: Medial patellar instability is rare but may occur after lateral retinacular release. The lateral patellofemoral ligament is a significant stabilizer for medial and lateral patellar displacement, and soft tissue–based reconstruction may restore its stabilizing effect. Indications: Lateral patellofemoral ligament reconstruction (LPFLR) is indicated for patellar instability failing exhaustive nonoperative measures. Technique Description: Diagnostic arthroscopy for medial patellofemoral ligament (MPFL) status, patellar tracking, chondral status, and postoperative changes of lateral retinacular release is conducted. A 5-cm incision is made between the midpoint of the patella and the lateral epicondyle, or a single midline incision can be used if performing a concomitant MPFL reconstruction. Dissection is carried down to the lateral retinaculum and capsule, and two 1-cm incisions are made at the distal and proximal patella through the patellar and quadriceps tendon, respectively. The lateral epicondyle is then directly palpated, and two 1-cm incisions are made directly anterior and posterior to the epicondyle into the iliotibial band in full extension. A hamstring allograft is then shuttled in a V-shaped configuration from the quadriceps tendon through the iliotibial band and finally to the patellar tendon. Excess graft is trimmed and doubled over proximally and distally to replicate the normal (or contralateral) 0° to 15° of patellar eversion. Trial resting length and tension is set with temporary sutures through the proximal and distal doubled graft in full extension. The knee is taken through full range of motion to ensure there is no graft tightening in flexion or loosening in full extension. Eversion and patellar translation are then examined. Heavy nonabsorbable sutures are used to set length of the doubled allograft proximally and distally. Results: Case series of LPFLR have demonstrated significant improvements in patients’ pain, Lysholm score and Knee Injury and Osteoarthritis Outcome Score, and kinesiophobia with no instability events and normal range of motion at short-term follow-up. Discussion/Conclusion: Medial patellar instability can occur following lateral retinacular release and patients experiencing instability despite nonoperative treatment are likely to benefit from a soft tissue–based LPFLR. Although other nongraft-based techniques may confer similar outcomes, the authors find it more reliable to perform a lateral reconstruction as described.

Comparison of Patellofemoral Kinematics and Stability After Medial Patellofemoral Ligament and Medial Quadriceps Tendon–Femoral Ligament Reconstruction

2020 ◽  
Vol 48 (9) ◽  
pp. 2252-2259
Author(s):  
Robert Spang ◽  
Jonathan Egan ◽  
Philip Hanna ◽  
Aron Lechtig ◽  
Daniel Haber ◽  
...  
Keyword(s):  
Soft Tissue ◽  
Medial Patellofemoral Ligament ◽  
Quadriceps Tendon ◽  
Mpfl Reconstruction ◽  
Fixation Method ◽  
Full Extension ◽  
Lateral Translation ◽  
Patellar Position ◽  
Significant Difference ◽  
Contact Pressures

Background: There is a lack of evidence regarding the optimum extensor-sided fixation method for medial patellofemoral ligament (MPFL) reconstruction. There is increased interest in avoiding patellar drilling via soft tissue–only fixation to the distal quadriceps, thus reconstructing the medial quadriceps tendon–femoral ligament (MQTFL). The biomechanical implications of differing extensor-sided fixation constructs remain unknown. Hypothesis: The null hypothesis was there would be no differences between traditional MPFL reconstruction and MQTFL reconstruction with respect to resistance to lateral translation, patellar position, or patellofemoral contact pressures. Study Design: Controlled laboratory study. Methods: Nine adult knee specimens were mounted on a jig that applied static, physiologic loads to the quadriceps tendons. Patellar position and orientation, knee flexion angle, and patellofemoral pressure were recorded at 8 different flexion angles between 0° and 110°. Additionally, a lateral patellar excursion test was conducted wherein a load was applied directly to the patella in the lateral direction with the knee at 30° of flexion and subjected to 2-N quadriceps loads. Testing was conducted under 4 conditions: intact, transected MPFL, MQTFL reconstruction, and MPFL reconstruction. For MQTFL reconstruction, the surgical technique established by Fulkerson was employed. For MPFL reconstruction, a traditional technique was utilized. Results: The patellar excursion test showed no significant difference between the MQTFL and intact states with respect to lateral translation. MPFL reconstruction led to significantly less lateral translation ( P < .05) than all other states. There were no significant differences between MPFL and MQTFL reconstructions with respect to peak patellofemoral contact pressure. MPFL and MQTFL reconstructions both resulted in increased internal rotation of the patella with the knee in full extension. Conclusion: Soft tissue-only extensor-sided fixation to the distal quadriceps (MQTFL) during patella stabilization appears to re-create native stability in this time 0 cadaver model. Fixation to the patella (MPFL) was associated with increased resistance to lateral translation. Clinical Relevance: Evolving anatomic knowledge and concern for patellar fracture has led to increased interest in MQTFL reconstruction. Both MQTFL and MPFL reconstructions restored patellofemoral stability to lateral translation without increasing contact pressures under appropriate graft tensioning, with MQTFL more closely restoring native resistance to lateral translation at the time of surgery.

The Effect of Foam Rolling Versus IASTM on Knee Range of Motion, Fascial Displacement, and Patient Satisfaction

2020 ◽  
pp. 1-8
Author(s):  
Michelle A. Sandrey ◽  
Cody Lancellotti ◽  
Cory Hester
Keyword(s):  
Patient Satisfaction ◽  
Soft Tissue ◽  
Range Of Motion ◽  
Rectus Femoris ◽  
Biceps Femoris ◽  
Knee Extension ◽  
Iliotibial Band ◽  
Controlled Clinical Trial ◽  
Foam Rolling ◽  
Myofascial Release

Context: Soft tissue restrictions have been linked to poor flexibility and decreased range of motion (ROM). To decrease the soft tissue restrictions and ultimately increase ROM/flexibility, myofascial release techniques, such as foam rolling (FR) and instrument-assisted soft tissue mobilization (IASTM), have been used. However, the benefit regarding which technique is more beneficial remains unknown. Objective: To examine the effects of myofascial release techniques (FR vs the instrumented portion of IASTM) on knee joint ROM, rectus femoris (RF) and biceps femoris (BF) fascial displacement, and patient satisfaction. Design: Randomized controlled clinical trial. Setting: Mid-Atlantic University. Participants: Twenty moderately active participants (age 21.1 [2.0] y) with variable levels of soft tissue restriction in the quadriceps and hamstrings started and completed the study. Participants were randomly assigned to 2 groups, FR or IASTM. Interventions: All participants completed the same warm-up prior to the intervention. The FR group followed the proper FR protocol for gluteals/iliotibial band, quadriceps, and hamstrings/adductors, and the participants were monitored while the protocol was completed. The IASTM group received treatment on the gluteals/iliotibial band followed by the quadriceps, adductors, and hamstrings. Participants in both groups attended intervention sessions twice per week for 3 weeks. Prior to the start, knee ROM measurements were taken, along with fascial displacement measured via ultrasound. Upon completion of the study, posttest measurements were completed. A patient satisfaction survey was also administered at this time. Main Outcome Measures: Pretest to posttest knee ROM measurements, RF and BF fascial displacement, and patient satisfaction. Results: Both groups improved pretest to posttest for knee-extension ROM, with a slight trend toward increased knee-extension ROM for the FR group. Both groups improved pretest to posttest for BF and RF fascial displacement, in favor of the IASTM group for BF fascial displacement. Both groups were equally satisfied. Conclusions: As both groups improved pretest to posttest, either treatment could be used.

scholarly journals Evaluation of Quadriceps Strength Post-medial Patellofemoral Ligament Reconstruction Using Quadriceps Tendon Autografts

2020 ◽  
Vol 8 (A) ◽  
pp. 943-946
Author(s):  
Sholahuddin Rhatomy ◽  
Roy Lisang ◽  
Noha Roshadiansyah Soekarno ◽  
Bambang Kisworo
Keyword(s):  
Range Of Motion ◽  
Ligament Reconstruction ◽  
Medial Patellofemoral Ligament ◽  
Quadriceps Tendon ◽  
Quadriceps Strength ◽  
Mpfl Reconstruction ◽  
Medial Patellofemoral Ligament Reconstruction ◽  
Thigh Circumference ◽  
Significant Difference ◽  
Epiphyseal Plates

BACKGROUND: Medial patellofemoral ligament (MPFL) reconstruction using quadriceps tendon (QT) grafts provides favorable results with minimal complications and can be performed in patients with open epiphyseal plates. Following MPFL reconstruction using QT grafts, the outcomes have been evaluated, but the residual quadriceps strength (QS) has never been evaluated. AIM: We analyzed the knee’s range of motion (ROM), thigh circumference (TC), and QS at donor leg sites compared with those at contralateral healthy sites after MPFL reconstruction. The hypothesis was that there is no morbidity at donor sites. MATERIALS AND METHODS: Patients who underwent MPFL reconstruction using QT autografts between January and December 2017 were recruited. The ROM, TC, and QS were measured 6 months postoperatively. RESULTS: Twenty-one patients (8 men, 14 women; mean age, 28.40 ± 10.78 years [range, 16–45]) were included in the study. The TCs at the donor and contralateral sites (medians: 37 and 37.5 cm, respectively) showed no significant difference (p = 0.64). QS measurements showed means of 182 ± 4.6 N and 190 ± 4.7 N at the donor and contralateral sites, respectively (p = 0.376). There were no ROM deficits. CONCLUSIONS: The ROM, TC, and QS at donor sites were similar to those at contralateral sites. The QT is a suitable graft for MPFL reconstruction.

FULL WEIGHT BEARING KINEMATIC MRI STUDY OF TT-TG DISTANCE: COMPARING PATIENTS WITH PATELLOFEMORAL PAIN TO HEALTHY INDIVIDUALS

2015 ◽  
Vol 21 (4.1) ◽  
pp. 638-642
Author(s):  
Andrius Brazaitis ◽  
Algirdas Tamosiunas ◽  
Janina Tutkuviene
Keyword(s):  
Patellar Instability ◽  
Weight Bearing ◽  
Patellofemoral Pain ◽  
Full Weight Bearing ◽  
Trochlear Groove ◽  
Patellar Tilt ◽  
Full Extension ◽  
Low Degrees ◽  
Mri Study ◽  
Kinematic Magnetic Resonance Imaging

Purpose. The aim of the present study was to investigate tibial tuberosity-trochlear groove (TT-TG) distance dynamics in patients with patellofemoral pain (PFP) and pain free individuals by using full weight bearing kinematic magnetic resonance imaging (MRI) And correlation with patellar instability. Materials and methods. 51 female individuals with PFP and 26 pain free female individuals participated in the study. The kinematic MRI was performed with 1,5 T MRI unit and full-weight bearing. TT-TG distance, bissect offset (BSO) and patellar tilt angle (PTA) were measured in steps of 10° between 50° of flexion to full extension. Results. The TT–TG was higher in PFP patients compared to volunteers’ from 40° to full extension. This difference was statistically significant (p<0.01). PFP patients demonstrated statistically significantly greater TT-TG distance increase from 30° to full extension. BSO and PTA were moderately correlated to TT-TG from 20° of flexion to full extension. Conclusion. TT-TG distance is dynamic and increases significantly during extension in patients with PFP and pain free individuals, depending on knee flexion angle. It shows different pattern of dynamics in PFP group. TT-TG distance is associated with patellar instability (BSO and PTA) at low degrees of flexion.

scholarly journals SEX, PATELLAR TENDON GRAFT, AND EARLY MOTION DEFICITS PREDICT ARTHROFIBROSIS AFTER PEDIATRIC ANTERIOR CRUCIATE LIGAMENT RECONSTRUCTION

2021 ◽  
Vol 9 (7_suppl3) ◽  
pp. 2325967121S0009
Author(s):  
Abraham J. Ouweleen ◽  
Tyler B. Hall ◽  
Craig J. Finlayson ◽  
Neeraj M. Patel
Keyword(s):  
Anterior Cruciate Ligament ◽  
Anterior Cruciate Ligament Reconstruction ◽  
Children And Adolescents ◽  
Ligament Reconstruction ◽  
Cruciate Ligament ◽  
Univariate Analysis ◽  
Quadriceps Tendon ◽  
Extension Deficit ◽  
Cruciate Ligament Reconstruction ◽  
Anterior Cruciate

Background: Arthrofibrosis remains a concerning early complication after anterior cruciate ligament reconstruction (ACLR) in children and adolescents. Previous studies suggest that those receiving patellar tendon (PT) autograft may be at higher risk than hamstrings tendon (HT), but there is little data regarding this complication in patients receiving quadriceps tendon (QT) autograft. Purpose: The purpose of this study is to identify risk factors for arthrofibrosis following pediatric ACLR with attention to graft type. Methods: The medical records of patients that underwent primary ACLR at a single tertiary children’s hospital were reviewed for this retrospective cohort study. Those with multiligament reconstructions, lateral extra-articular tenodesis procedures, or a modified MacIntosh reconstruction were excluded. Arthrofibrosis was defined as a deficit of 10 degrees of extension and/or 20 degrees of flexion at 3 months after ACLR. Demographic data, intra-operative findings and techniques, and post-operative motion and complications were recorded. Univariate analysis was followed by purposeful entry logistic regression to control for confounding factors. Results: A total of 378 patients were included in the analysis, of which there were 180 PT, 103 HT, and 95 QT grafts. The mean age was 15.9±1.7 years and 188 (49.7%) were female. In univariate analysis, the rate of arthrofibrosis was 1.9% for HT, 6.3% for QT, and 10.0% for PT (p=0.04). Females developed arthrofibrosis more frequently than males (10.6% vs. 3.2%, p=0.004). Additionally, those that ultimately experienced this complication had lower median flexion at 6 weeks after ACLR (88 vs. 110 degrees, p<0.001). After controlling for covariates in a multivariate model, PT graft raised the odds of arthrofibrosis 6.2 times compared to HT (95% CI 1.4-27.6, p=0.02), but there were no significant differences between QT and other graft types. Females were at 4.2 times higher odds than males (95% CI 1.6-10.8; p=0.003). Patients that were unable to attain 90 degrees of flexion 6 weeks after ACLR had 14.7 times higher odds of eventually developing arthrofibrosis (95% CI 5.4-39.8; p<0.001). Finally, those with an extension deficit of ≥5 degrees 6 weeks after ACLR had 4.7 times higher odds of experiencing this complication (95% CI 1.8-12.2, p=0.001). Conclusion: After adjusting for multiple covariates, PT autograft, female sex, and motion deficits at 6 weeks after ACLR (<90 degrees of flexion or extension deficit ≥5 degrees) were predictive of arthrofibrosis in children and adolescents. Quadriceps tendon autograft did not increase the risk of this complication.

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