Long-term Results of Lateral Retinacular Release

Panni, Alfredo Schiavone; Tartarone, M.; Patricola, Alessandro; Paxton, Elizabeth W.; Fithian, Donald C.

doi:10.1016/j.arthro.2005.01.007

Cited by 110 publications

(64 citation statements)

References 24 publications

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“…Even in the presented knee specimens without pathologic alterations of the lateral retinacular soft tissue, the centre of patellar pressure is significantly medialised during flexion above 60°. This medialisation would offer an unloading effect on the lateral patellar facet and a potential reduction of anterior knee pain, which previously could be confirmed by several clinical in-vivo studies [14,17,22,27]. Therefore, the results of the presented study suggest that lateral retinacular release should be considered carefully in cases of lateral patellar instability, but could have a significant relieving effect on he lateral patellar facet in knee flexion in cases of anterior knee pain without instability but overload of the lateral facet of the patella.…”

Section: Discussionmentioning

confidence: 64%

Dynamic measurement of patellofemoral kinematics and contact pressure after lateral retinacular release: an in vitro study

Ostermeier

Holst

Hurschler

et al. 2007

Knee Surg Sports Traumatol Arthrosc

108

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The purpose of this study was to investigate the influence of lateral retinacular release and medial and lateral retinacular deficiency on patellofemoral position and retropatellar contact pressure. Human knee specimens (n = 8, mean age = 65 SD 7 years, all male) were tested in a kinematic knee-simulating machine. During simulation of an isokinetic knee extension cycle from 120 degrees to full extension, a hydraulic cylinder applied sufficient force to the quadriceps tendon to produce an extension moment of 31 Nm. The position of the patella was measured using an ultrasound based motion analysis system (CMS 100, Zebris). The amount of patellofemoral contact pressure and its pressure distribution was measured using a pressure sensitive film (Tekscan, Boston). Patellar position and contact pressure were first investigated in intact knee conditions, after a lateral retinacular release and a release of the medial and lateral retinaculum. After lateral retinacular release the patella continuously moved from a significant medialised position at flexion (P = 0.01) to a lateralised position (P = 0.02) at full knee extension compared to intact conditions, the centre of patellofemoral contact pressure was significantly medialised (0.04) between 120 degrees and 60 degrees knee flexion. Patellofemoral contact pressure did not change significantly. In the deficient knee conditions the patella moved on a significant lateralised track (P = 0.04) through the entire extension cycle with a lateralised centre of patellofemoral pressure (P = 0.04) with a trend (P = 0.08) towards increased patellofemoral pressure. The results suggest that lateral retinacular release did not inevitably stabilise or medialise patellar tracking through the entire knee extension cycle, but could decrease pressure on the lateral patellar facet in knee flexion. Therefore lateral retinacular release should be considered carefully in cases of patellar instability.

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Section: Discussionmentioning

confidence: 64%

Dynamic measurement of patellofemoral kinematics and contact pressure after lateral retinacular release: an in vitro study

Ostermeier

Holst

Hurschler

et al. 2007

Knee Surg Sports Traumatol Arthrosc

108

View full text Add to dashboard Cite

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“…Arthroscopy was routinely performed to evaluate any intraarticular lesions and patellar tracking. Arthroscopic lateral release was performed for patients exhibiting tightness of lateral structures with a positive patellar tilt test under anesthesia [13]. The semitendinosus tendon autograft was harvested.…”

Section: Surgical Techniquementioning

confidence: 99%

A prospective randomized trial evaluating two different tensioning techniques for medial patellofemoral ligament reconstruction

et al. 2016

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“…Although good results have been reported with isolated lateral release 37 this is not uniformly the case. 38 Tibial tubercle medializing or distalization osteotomy An abnormally lateral position of the tibial tuberosity (increased Q angle or TTTG) causes lateralization of the extensor mechanism of the knee. This can predispose to lateral tracking of the patella and anterior knee pain or to objective patellar instability, characterized by recurrent dislocation.…”

Section: Surgical Proceduresmentioning

confidence: 99%