China
Africa
Explore chapters and articles related to this topic
Soft Tissue Surgery of the Knee
Published in Timothy W R Briggs, Jonathan Miles, William Aston, Heledd Havard, Daud TS Chou, Operative Orthopaedics, 2020
Stephen Key, Jonathan Miles, Richard Carrington
Lateral release of the patella is indicated in patients with a tight lateral patellar retinaculum who meet the following criteria: Anterior knee painPositive patella tilt test, less than 5°Failure of conservative measures, including physiotherapy specifically, to strengthen the quadriceps and hamstrings
The knee
Published in Ashley W. Blom, David Warwick, Michael R. Whitehouse, Apley and Solomon’s System of Orthopaedics and Trauma, 2017
Andrew Price, Nick Bottomley, William Jackson
Lateral facet pressure syndrome remains one of the few indications for performing lateral release, where the lateral knee capsule and extensor retinaculum are divided longitudinally, either open or arthroscopically. This sometimes succeeds on its own (particularly if significant patellar tilting can be demonstrated on X-ray or MRI), but more often patellofemoral realignment will be needed as well.
The Knee
Published in Louis Solomon, David Warwick, Selvadurai Nayagam, Apley and Solomon's Concise System of Orthopaedics and Trauma, 2014
Louis Solomon, David Warwick, Selvadurai Nayagam
If symptoms persist, surgery can be considered – lateral release, or lateral release combined with one of the re-alignment procedures illustrated in Figure 20.25 if there is any sign of patellar instability. Arthroscopic shaving of fibrillated cartilage is sometimes performed, but its efficacy is questionable.
Combined patellofemoral arthroplasty and medial patellofemoral ligament reconstruction for chronic patellar instability with trochlear dysplasia: a report of two cases
Published in Modern Rheumatology Case Reports, 2020
Ryota Yamagami, Hiroshi Inui, Shuji Taketomi, Sakae Tanaka
Conversely, patellofemoral arthroplasty (PFA) is a major treatment option for the treatment of isolated PFOA [8,9]. Second-generation PFA implants introduced onlay design for trochlear prostheses with a wider and less constraining groove compared with first-generation implants. These new implants provided a universal application to all patients irrespective of anatomical variation of the PF joint. Valoroso et al. recently demonstrated that trochlear-cutting PFA improved PF congruence by correcting trochlear dysplasia and standardizing patellar tilt and tibial-tubercle-to-trochlear-groove (TT–TG) distance in their prospective case series of 16 patients, and they called PFA “metallic trochleoplasty” [10]. Therefore, we hypothesized that PFA, performed instead of trochleoplasty, in combination with MPFL reconstruction, could improve patellar stability with little risk for subsequent complications such as those seen with trochleoplasty. Our indication for PFA combined with MPFL reconstruction is chronic patellar instability with trochlear dysplasia, with or without PFOA, which is difficult to control even after several bony or soft tissue surgeries such as trochlear tubercle transfer (TTT) or MPFL reconstruction or both. To our knowledge, no previous case reports have been published on this procedure, although reports on PFA combined lateral release or distal realignment have been published in the literature [9,11–13].
Changes in knee extensor strengths before and after medial patellofemoral ligament reconstruction
Published in The Physician and Sportsmedicine, 2019
Takehiko Matsushita, Daisuke Araki, Tomoyuki Matsumoto, Takahiro Niikura, Ryosuke Kuroda
MPFL reconstruction was performed by two experienced surgeons as previously described [22]. Briefly, the semitendinosus tendon was harvested for the graft. Lateral release was performed in 12 patients arthroscopically from the intra-articular side using a thermal device (VAPR VUE® Radiofrequency System, DePuy Synthes, Zuchwil, Switzerland) if the patellar tilt was more than 15° and the patella could not be inverted to parallel manually by lifting the lateral side of the patella in knee extension [23, 24]. Two suture anchors were inserted into the medial proximal margin and the medial center of the patella. The femoral tunnel position was also confirmed by fluoroscopy using the method reported by Schöttle et al. [25]. After checking the length change pattern, the doubled semitendinosus tendon was placed in the femoral socket and fixed with a metal interference screw (DePuy Synthes, Zuchwil, Switzerland). Before fixing the patellar side, passive knee flexion was repeated several times to obtain a consistent tracking. Then, the patella was held to maintain its position at 20–30° knee flexion. The distal free end of the graft was pulled with minimal tension to avoid elongating the graft and then tied over the patella using sutures attached to the anchors. After confirming that the graft was not too tight, the proximal free end of the graft was fixed in the same manner.