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Orthopaedic Proceedings
Vol. 86-B, Issue SUPP_III | Pages 277 - 277
1 Mar 2004
Zepeda A Choudhury G Halder S Chapman J
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Aim: Distal extra articular fractures of femur and tibia are difþcult to treat by conventional nails because of inability to use distal locking screws. The aim of this study is to analyse the effectiveness of this new I.M. Nail that does not require the use of distal locking screws for rotational stability. Methods & Material: Since 1994 we have treated a total of 68 such cases. Of these 40 were fractures of distal tibia and 28 were that of femur. Age range was from 11– 92. After insertion of the nail in the usual way, a ÒTrio WireÒ was introduced through the nail. This wire fans out in the distal segment which maintains rotational stability. Patients were mobilised with partial weight bearing within 3 weeks. Results: Most of the fractures were united without any signiþcant problem. Delayed union occurred in 2 cases. Breakage of the trio wire occurred in one case and 1 patient with supra-condylar fracture of femur needed revision for persistent varus deformity. Conclusion: We conclude that this I.M. Nail can be used effectively for þxation of these difþcult fractures. This is does not require X-ray exposure for distal locking. Operative time is thus minimised. This also saves surgeonñs hands from direct exposure to radiation. The þxation also allows for dynamisation of the fracture to promote early union.


Orthopaedic Proceedings
Vol. 85-B, Issue SUPP_I | Pages 26 - 27
1 Jan 2003
Halder S Chapman J Choudhury G Zepeda A McWilliams G Flood B Chadwick CJ
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We review the results of the Gamma nail fixation to elucidate its effectiveness in the treatment of peritro-chanteric and subtrochanteric fractures of the neck of femur.

We report the result of 718 cases of Gamma nail fixation in all such cases presenting at our institution since 1988. 573 cases of peritrochanteric and 145 cases of sub-trochanteric fractures were treated by means of standard and long Gamma nail. Age groups of the patients are from 33 to 99 years. No distal locking screw was used in cases of standard nails. All grades of surgeons were involved. Full weight bearing was allowed on the first post operative day. Cases were followed up for one year.

No intraoperative iatrogenic fracture was encountered. Minimal post operative pain was experienced and mobility was regained early. All fractures healed satisfactorily except the following: 51 cases developed coxa vera deformity; 37 cases of undisplaced fractures of base of greater trochanter were noticed at 6 weeks follow up - all healed spontaneously; 1 case of external rotational deformity occurred in a long nail where no distal locking screw was used. 2 cases of deep infection were treated successfully by removal of nail and antibiotic treatment; 4 cases of fracture at the level of the distal end of the prosthesis, presented at 6 weeks to 2 year period following a subsequent trauma, were treated with exchange of device with long nail. Upward penetration of hip screw 22. No case of metal failure observed.

Gamma nail provides a stable fixation in both simple and complex fractures of proximal femur with a much less invasive tehcnique which allows minimal disturbance of fracture haematoma, less incidence of wound infection and less amount of postoperative pain. Early mobility is regained with immediate and unrestricted weight bearing. Biomechanically also Gamma nail produces a better means of osteosynthesis.