Modified Aglietti procedure (supracondylar femoral osteotomy) for correction of the post-rachitic valgus deformity of the knee in adolescents - A short case series

Clinical outcome and correction following V osteotomy for genu valgum in adolescents and young adults: A systematic review

BACKGROUND

Genu Valgum usually originates from distal femur and many open and closed wedge osteotomies of distal femur have been reported but none has proved to be the best. Distal femur V osteotomy is a wedgeless osteotomy and is a rarely reported osteotomy with only a few case series and 167 cases of isolated distal femur V osteotomy for genus valgum in young patients (<25 years) in literature but with a tendency to have an excellent outcomes.

PURPOSE

To determine correction and clinical outcome following V osteotomy for genu valgum in adolescents and young adults (10-25 years).

PATIENT AND METHODS

A systematic research was conducted of PubMed, MEDLINE and Google Scholar to identify studies reporting the correction and clinical outcome following V osteotomy in adolescents and young adults (10-25 years) for genu valgum by 2 different authors according to PRISMA guidelines.

RESULTS

5 studies with 167 patients and 263 knees were identified meeting the inclusion criteria for review. The follow-up period ranged from 3 months to 36 months. Overall complication rate was 12.3%, the most common being plaster sore, 4.2% (11/263) followed by superficial infection, 2.7% (7/263). The mean correction was 19.1° and a mean post-operative valgus was 5.7°. In those compared with Bostman score (157/167), 94.3% had excellent (148/157) and remaining 5.7% (9/157) had good scores (20-27/30) with none showing poor score (<20/30).

CONCLUSION

V osteotomy is a reliable method of distal femoral osteotomy to attain a good correction with an excellent clinical outcome even with variations of fixation however longer follow-up period are required for better evaluation of recurrence.

Experience of supracondylar cheveron osteotomy for genu valgum in 115 adolescent knees

PURPOSE

Medial close wedge Coventry type osteotomy is commonly performed procedure for adoloscent Genu valgum. However this osteotomy has some inherent problems, a wedge resection causes shortening of affected site. An additional plate for stabilization causes increase in soft tissue dissection and surgical time. A cheveron osteotomy is an alternative procedure, not requiring any internal fixation due to its inherent stability. We started this study with aim to analyze the results of Cheveron osteotomy, to see if the osteotomy was stable enough without implants, time required for healing of osteotomy, post-operative range of motion, limb length discrepancy and to evaluate any other complication.

METHODS

This study was conducted to evaluate the efficacy of cheveron osteotomy in cases with genu valgum in our department from 2005 to 2012. 75 children with 115 knee deformities were included in the study. Patients were followed upto minimum 3 years post surgery. Clinical and radiological assessment was done on all subsequent visits.

RESULTS

Preoperative mean valgus angle was 21° (12-30°) and mean inter malleolar distance was 12.3 cm(11-21 cm). The mean post-operative angle was 6.5° and mean intermalleolar distance was 5.6 cm. The difference was statistically significant. The mean tourniquet time was 26 min and mean surgical time including plaster cast application was 38 min. Mean blood loss was 75 ml. The mean time to union was 10.3 weeks.

CONCLUSION

Supracondylar cheveron osteotomy is simple, stable, low cost osteotomy for surgical correction of genu valgum. The osteotomy provides excellent clinical, radiological and functional results in short surgical time and has an added advantage of omitting the need of second surgery.