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The Journal of Bone & Joint Surgery British Volume
Vol. 72-B, Issue 5 | Pages 874 - 880
1 Sep 1990
Pereira J Cowley S Gschmeissner S Bowden R Turk J

About 20% of patients with leprosy develop localised granulomatous lesions in peripheral nerves. We report experiments in guinea-pigs in which freeze-thawed autogenous muscle grafts were used for the treatment of such mycobacterial granulomas. Granulomas were induced in guinea-pig tibial nerves and the animals were left for 7 to 100 days in order to assess maximal damage. The local area of nerve damage was then excised and the gap filled with denatured muscle grafts. Clinical assessment after periods up to 150 days showed good sensory and motor recovery which correlated well with the histological findings. The muscle graft technique may be of value for the treatment of chronic nerve lesions in selected cases of leprosy.


The Journal of Bone & Joint Surgery British Volume
Vol. 70-B, Issue 4 | Pages 530 - 533
1 Aug 1988
Norris R Glasby M Gattuso J Bowden R

Coaxial autografts of skeletal muscle which had been frozen then thawed were used to repair injured digital nerves in eight patients. Assessment from three to 11 months after operation showed recovery to MRC sensory category S3+ in all but one patient, an excellent level of recovery. We conclude that bespoke muscle grafts treated and used in this way may offer significant advantages over conventional nerve grafts or cable grafts especially where large peripheral nerves are involved.


The Journal of Bone & Joint Surgery British Volume
Vol. 65-B, Issue 4 | Pages 478 - 492
1 Aug 1983
Raji A Bowden R

Apart from preliminary notices of present work, previous reports of experimental and clinical trials of the effects of a high-peak pulsed electromagnetic field (PEMF) on degeneration and regeneration of peripheral nerves lacked statistical analysis. Therefore, we designed experiments with standardised operative, histological, cytological and morphometric techniques to assess the effect of PEMF on lesions of the common peroneal nerves in paired male rats matched for age, environmental conditions and level and type of lesion. One of two types of lesion was induced in the left common peroneal nerve: in 12 pairs of rats the nerve was crushed just above the knee and in the remaining 12 pairs the nerve was cut and immediately sutured at the same level. The right common peroneal nerve of each rat served as a control. Animals received 15 minutes of PEMF produced by a Diapulse machine or sham treatment daily for periods ranging from three and a half days to eight weeks after injury. Healthy nerves were unaffected, but after damage there were statistically significant differences between PEMF treated and sham treated rats. PEMF accelerated the recovery of injured limbs and the degeneration, regeneration and maturation of myelinated axons; epineural, perineural and intraneural fibrosis was reduced; and the luminal cross-sectional area of intraneural vessels increased after both types of lesion. Findings are discussed and the need for clinical trials is stressed.