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 Surgery for unilateral and bilateral patellar tendinopathy: a seven year comparative study

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Abstract

Purpose

Open surgery for patellar tendinopathy allows patients with unilateral and bilateral tendinopathy to return to high levels of physical activity.

Materials

Two groups of 23 athletes each underwent open surgical exploration for management of patellar tendinopathy. One group suffered from unilateral patellar tendinopathy (unilateral group), and the other group had bilateral (bilateral group) patellar tendinopathy. Maximum voluntary isometric contraction and anthropometric measures were assessed pre-operatively and at an average follow-up of seven years. The Victorian Institute of Sport Assessment (VISA)-P scoring system was also administered; functional outcomes were classified from excellent to poor according to a modification of Kelly’s criteria.

Results

At the final follow-up, in both groups, VISA-P scores were significantly improved compared with preoperative values, with no intergroup differences. Clinical results were excellent or good in 21 patients in the unilateral and 19 in the bilateral group. Twenty of 23 patients in the unilateral group and 17 of 23 in the bilateral group were still active in sports (p = 0.2). In the unilateral group, at the last follow-up, thigh volume and strength were significantly improved compared with baseline, with significant difference between operated and nonoperated limbs. In the bilateral group, there were no significant differences in thigh volume and strength between the dominant and nondominant limbs both before and after the index procedure.

Conclusions

This procedure is not technically demanding and provides a high rate of good and excellent outcomes in the long term.

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Authors and Affiliations

  1. Department of Musculoskeletal Disorders, Faculty of Medicine and Surgery, University of Salerno, Salerno, Italy

    Nicola Maffulli

  2. Centre for Sports and Exercise Medicine, Barts and The London School of Medicine and Dentistry, Mile End Hospital, 275 Bancroft Road, London, E1 4DG, England

    Nicola Maffulli, Gayle Maffulli & John B King

  3. Department of Orthopaedic and Trauma Surgery, Tor Vergata University, Rome, Italy

    Francesco Oliva

  4. Department of Orthopaedic and Trauma Surgery, Hospital Sant’Anna, 22063, Via Ravona, San Fermo della Battaglia, Como, Italy

    Angelo Del Buono

Authors
  1. Nicola Maffulli
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  2. Francesco Oliva
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  3. Gayle Maffulli
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  4. John B King
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  5. Angelo Del Buono
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Correspondence to Nicola Maffulli.

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Maffulli, N., Oliva, F., Maffulli, G. et al.  Surgery for unilateral and bilateral patellar tendinopathy: a seven year comparative study. International Orthopaedics (SICOT) 38, 1717–1722 (2014). https://doi.org/10.1007/s00264-014-2390-2

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  • DOI: https://doi.org/10.1007/s00264-014-2390-2

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