Patella Instability
An unstable patella means that the patella does not remain in its groove on the femur but tends to be pulled towards the outside of the knee (subluxes or partially dislocates). In more severe cases the patella dislocates completely. Patients present with knee pain which is worse following activity.
Operations
- Medial Patello-Femoral Ligament Reconstruction | The medial patellofemoral ligament functions to stabilize the patella. A MEDIAL PATELLO-FEMORAL LIGAMENT RECONSTRUCTION (MPFL) is done to correct recurrent patella dislocations. The ligament which is stretched or torn is reconstructed using your hamstring tendons (tendons that attach the muscles on the back of your thigh to the tibia).
- Tibial Tubercle Osteotomy | A TIBIAL TUBERCLE OSTEOTOMY is also done for recurrent patella dislocations. It involves repositioning the tibial tubercle (a bump in the front of the shin bone) so that the patella lies in an anatomically correct position.
- Arthroscopic Lateral Release | An ARTHROSCOPIC LATERAL RELEASE involves loosening the soft tissues (lateral retinaculum) on the outer side of the knee to allow the patella better movement.
Overview
| Anaesthesia | General + Nerve Block |
| Duration of Procedure | 2 hours |
| Hospital Stay | 3 days |
| Return to Driving | 3 weeks |
| Return to Work | 2 weeks |
| Total Recovery | 3 months |
Patient Checklist: Pre-operation
Book or confirm the date of your operation with Megan
T | 041 363 4622
E | theatre@peknees.co.za
The patient is responsible for getting authorisation from medical aid. Megan will provide the relevant codes that you will need to get an AUTHORISATION NUMBER. Please note that the operation may be charged above medical aid rates and you may be liable for a co-payment.
On-line pre-admissions can be done by visiting the hospital website.
W | www.netcarehospitals.co.za
W | www.medicalforumtheatre.co.za
W | www.edgedayhospital.co.za
No eating or drinking for at least 6 hours before the operation. You will be admitted on the day of the operation.
Patient Checklist: Post-operation
The wound will be covered with a waterproof dressing. Your knee will be covered with a bandage and may be slightly swollen. You will need to use crutches for the first few days. These will be provided in the ward.
You will be given instructions on looking after the wound and exercises for your knee. Pain medication and anti-inflammatories will be prescribed for use at home. You may not drive and need to arrange a lift home.
You will be given a date for a post-operative appointment which is usually 10 days after the operation.