Clinical and Functional Outcome After Lateral Trochlear Lengthening Osteotomy Lateral Trochlear Lengthening Osteotomy (Tro_Le_Tomy)

University Hospital Basel

Status: Completed

Conditions: Patellar Instability

Treatments: Other: Collection of Clinical Scores; Other: Collection of data for muscle strength; Other: Collection of clinical measurements; Other: Collection of EMG Data; Other: Collection of Imaging Data - Radiological measurements

Study type: Observational

Funder types: Other

Identifiers

NCT04378491

2019-01405 ch20Muendermann2;

Details and patient eligibility

About

The purpose of this study is to evaluate the functional and clinical outcome of this new lengthening osteotomy of the lateral trochlea in patients with patella instability, trochlear dysplasia Dejour type A or B, short lateral articular trochlea quantified by the lateral condyle index and presence of a lateral trochlear bump.

Full description

A short lateral articular trochlea leads to failure in stabilizing the patella close to full Extension of the knee. To address this type of pathology, a trochlear lengthening osteotomy was described. To date only case reports describing the clinical outcome of this new osteotomy exist and information on functional outcome regarding muscle strength and electromyography (EMG) data is lacking. The purpose of this study is to evaluate the functional and clinical outcome of this new lengthening osteotomy of the lateral trochlea in patients with patella instability, trochlear dysplasia Dejour type A or B, short lateral articular trochlea quantified by the lateral condyle index and presence of a lateral trochlear bump.

Enrollment: 6 patients

Sex: All

Ages: 18+ years old

Volunteers: No Healthy Volunteers

Inclusion criteria

• 2 years (as of September 2019) since conducting a lateral trochlear lengthening osteotomy

Exclusion criteria

• Inability to provide informed consent
• Neurological disorders potentially affecting lower extremity muscle strength.
• Surgery involving the patellofemoral joint prior to the lateral trochlear lengthening osteotomy