SURGERY FOR BALISTIC INJURY OF THE SCIATIC NERVE

Abstract

Purpose of the study: Balistic nerve injury is not common in civil medicine. We analyzed a series of 30 patients who underwent surgery for this type of injury suffered in the Gaza strip between 2002 and 2004. All patients presented paralysis of the sciatic nerve or one of its major branches. All injuries were caused by war weapons.

Material and methods: The series included 28 men and two women, mean age 22 years (range 2.5–65). The injury had occurred more than one year earlier for 33% of patients. The injury was situated at the knee level in twelve patients and in the thigh in ten. Complete nerve section was observed in 12 patients and partial section in two. Loss of nervous tissue was significantly greater for lesions around the knee. Nineteen patients underwent surgery for: neurolysis (n=3), direct nerve suture (n=8) and nerve grafts (n=8). Eleven patients were reviewed at mean 13.7 months (range 3–30 months). There were no failures. Results of reinnervation of the tibial nerve territory were better than for the fibular nerve. Sixteen patients underwent palliative transfer for a hanging foot for more than six months: 15 transfers of the posterior tibial muscle through the interosseous membrane and hemitransfer of the Achilles tendon. Seven patients underwent Achilles tendon lengthening at the same time and five had a reinnervation procedure on the common fibular nerve.

Results: Seven patients were reviewed with a mean follow-up of 1.8 years (range 4–30 months. None of the patients used an anti-equin orthesis. There were three cases of forefoot malposition. The overall Stanmore score was good at 75.4/100 (range 59–100).

Discussion: High-energy ballistic trauma creates a specific type of injury. Nervous surgery can be indication early to favor spontaneous recovery. Palliative surgery for fibular lesions provides regularly good results.

Conclusion: Nerve injuries due to ballistic trauma should be explored surgically because of the possibility of direct nerve repair. In addition, depending on the type of paralysis, reliable palliative surgery can be proposed.