Introduction. Patellofemoral instability is one of the most common presentations to a children's orthopaedic clinic. Recurrent patellar dislocations and instability episodes are painful, disabling and increase the risk of irreversible chondral damage. The medial patellofemoral ligament is the primary static stabiliser to prevent lateral dislocation of the patella and is almost always torn or attenuated in these cases. Reconstruction of this ligament is commonly performed using autologous hamstring tendon however there has been some interest recently in use of quadriceps tendon as a graft. Children with patellar instability also present unique challenges due to the small size of the patella and the presence of open growth plates which may require adaptations to the common techniques. Methods. Patients undergoing
Background of study. Medial patellofemoral ligament (MPFL) reconstructions are often performed using gracilis autografts, this can be associated with donor site morbidity and complications. The use of synthetic material can circumvent a harvest operation and have previously been demonstrated to be effective in other types of reconstructive procedures and may be effective in
To determine in skeletally mature patients with a traumatic, first-time, patellar dislocation, the effect of early
The Medial Patellofemoral Ligament (MPFL) is the main restraining force against lateral patellar displacement. It is often disrupted following patellar subluxation or dislocation.
Chronic patello-femoral joint instability leads to recurrent subluxation and dislocation affecting knee function and preventing participation at sport. Traumatic dislocation of the patella results in rupture of the medial patello-femoral ligament (MPFL) in the majority of cases with a high incidence of chronic instability after a second dislocation.
Background: There are several surgical options for recurrent lateral dislocations of the patella. As the reconstruction of the
Abstract. The radiographic or bony landmark techniques are the two most common methods to determine Medial patellofemoral ligament (MPFL) femoral tunnel placement. Their intra/inter-observer reliability is widely debated. The palpation technique relies on identifying the medial epicondyle (ME) and adductor Tubercle (AT). The central longitudinal artery and associated vessels (CLV) are consistently seen in the surgical dissection during
Introduction. Current problem – Multiple surgical interventions for patellar instability and no defined criteria for use of medial patellofemoral ligament (MPFL) reconstruction. Aims. Investigate the functional outcomes of
Recurrent patellar instability is common in young and active patients. Medial patellofemoral ligament (MPFL) reconstruction with a single bundle hamstring graft is one method of surgical treatment for this problem. This is a retrospective case series of patients who underwent
Purpose of Study:. Various techniques have been described and are still used for treating recurrent dislocation of the patella when conservative measures fail. Among them are distal, proximal and combined realignment techniques and lateral releases. Since being shown proof of the biomechanical importance of the medial patellofemoral ligament (MPFL) in patellofemoral instability, the reconstruction of the MPFL has gained in popularity. The objective of this paper is to present a case series with preliminary clinical results using the gracilis tendon to reconstruct the MPFL. Method:. Between 01/07 and 03/11 23 knees in 21 patients underwent reconstruction of the MPFL.4 of these patients had had previous surgery. Preoperatively the Caton Deschamps ratio using plain x-rays was worked out and the TT/TG distance was measured using CT scanning. Using these measurements as a guideline, 7 cases underwent a tibial tubercle transfer as an additional procedure. In 6 of the cases an additional cartilage procedure was required. The technique was simplified using intra-operative x-rays to achieve anatomical tunnel placement. Results:. The Tegner Activity Score was used to evaluate the patients preoperatively and at a minimum of 6 months postoperatively. The scores improved on average from 3,6 to 7,4. One patient had an extensor lag of 10 degrees at 3 months. This had normalised by 6 months. One patient had recurrence of her instability and required a revision
Introduction. There are numerous surgical techniques for medial patellofemoral ligament (MPFL) reconstruction. Problems with certain techniques include patellar fracture and re-rupture. Aim. To investigate the functional outcomes of
Aims: Patellar instability and painful patellar mal-tracking are common challenging conditions faced by a knee surgeon. Our purpose was to describe an arthroscopy assisted method of
Recurrent patellar instability is a common problem and there are multiple demographic and pathoanatomic risk factors that predispose patients to dislocating their patella. The most common of these is trochlear dysplasia. In cases of severe trochlear dysplasia associated with patellar instability, a sulcus deepening trochleoplasty combined with a
AIMS. The aim of this study was to assess the knee function after
This study is a prospective analysis of clinical outcome in 201 consecutive patients treated with
Patients with recurrent patella instability, who have an abnormal patellofemoral alignment (patella height or tibial tubercle-trochlear groove (TTTG) distance), benefit from tibial tubercle transfer along with medial patellofemoral ligament (MPFL) reconstruction. Between July 2008 and April 2013, 18 patients (21 knees) with recurrent patellar instability underwent combined
Aims: The purpose of the study was to assess the mid-term knee functional results after Medial Patellofemoral Ligament (MPFL) reconstruction with single semitendinosus autograft in patients with patellofemoral instability. Methods and Results: Knee function was assessed in 45 patients (46 knees) who underwent
The aim of the study was to assess the knee function after
Objective: Prospective analysis of early clinical outcome in patients treated with