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Journal of Clinical Medicine Research

Original Article

Volume 9, Number 7, July 2017, pages 573-578

Chronic Achilles Tendon Rupture Reconstruction Using the Lindholm Method and the Vulpius Method

The Achilles tendon is one of the most commonly ruptured tendons in the body, typically affecting patients between 35 and 60 years old [1-3]. Achilles tendon ruptures usually are more common in men than in women and occur mostly during sports activities [1-4]. Patients typically experience sudden sharp pain and/or a feeling of shot pain behind the leg at injury [1, 4]. Although clinical examination is sufficient to diagnose Achilles tendon rupture after injury, approximately 10-25% of complete acute ruptures are missed initially and diagnosed later [2, 5, 6].

The optimal treatment of chronic Achilles tendon rupture is surgical repair [5, 6] and various techniques have been described [3, 6, 7]. It is difficult to treat a chronically ruptured Achilles tendon because there usually is a gap between the ends of the tendon, scarring, retraction of calf muscles and loss of contractility of the triceps surae [3, 5, 8]. These problems make the treatment of chronic Achilles tendon ruptures different from that of acute ruptures [5, 8, 9].

Operative techniques to repair chronic Achilles ruptures include primary repair and augmentation with fascia advancement, tendon transfer, free tissue transfer, synthetic grafts or allografts [2, 3, 5-8, 10, 11]. Some techniques have been combined, such as primary repair and Vulpius’ lengthening of the gastrocnemius [3, 6]. The Lindholm method is a technique in which double flaps from the gastrocnemius aponeurosis are used for the Achilles reconstruction [12].

We investigated the clinical and functional outcomes of chronic Achilles tendon rupture reconstruction via the Lindholm technique and primary repair via the Vulpius’ lengthening of the gastrocnemius.

We retrospectively analyzed 15 patients (13 males, two females; 10 right, five left; mean age, 35.2 years; range, 22 - 42 years) who underwent two different surgical techniques (Lindholm technique in eight and primary repair with Vulpius technique in seven) for chronic Achilles tendon rupture repair between 2010 and 2015 (Fig. 1). The characteristics of the patients are presented in Table 1.

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Figure 1. Schematic illustration of the Lindholm technique (a, b) and primary repair with Vulpius’ lengthening of the gastrocnemius (c, d).

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Table 1. Patient Characteristics

For all the patients, at least 4 weeks had passed since the primary injury. All patients were diagnosed by physical examination and magnetic resonance imaging (MRI). The chief complaints included significant disability and weakness in performing activities of daily living and limping. On physical examination, there was a gap at the site of the ruptured tendon and the calf squeeze test was positive in all patients. None of them could stand on tiptoe.

The surgical procedure was performed with the patient prone under spinal or general anesthesia. Initially, a longitudinal posterior midline incision was made. The Achilles tendon was exposed and the ruptured ends are debrided. Then, the length of the tendon defect was measured with the ankle plantarflexed up to 20°, and surgical reconstruction methods were performed.

In the Lindholm technique, the transfer of the two split fascia from the sides of the gastrocnemius coupled with the suturing of the ruptured area after a 180° turn was performed (Fig. 2).

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Figure 2. Intraoperative view of the Lindholm technique application. (a) Reconstruction of Achilles rupture defect with medial and lateral flaps harvested from the gastrocnemius. (b) Final view of the reconstruction after augmentation of the plantaris longus tendon.

In the Vulpius technique, a “V” incision was performed in the proximal gastrocnemius with its apex proximal. The arms of the “V” were approximately 10 cm in length or about one and half times the length of the defect, to allow for sufficient lengthening. Next, the proximal stump of the Achilles tendon was pulled distally until it can bridge the gap with the foot held in plantar flexion. Then, anastomosis was sutured with non-absorbable material by the modified Kessler method (Fig. 3).

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Figure 3. Intraoperative view of the Vulpius technique application. (a) The view of the gap at the chronically ruptured Achilles tendon. (b) The final view of the primary repair of the defect after lengthening of the gastrocnemius via a reverse V shape.

Postoperatively, a short-leg splint was applied to the ankle joint with the plantarflexion at 20°. The cast was generally applied for 4 weeks, but it was used for up to 6 weeks in patients where the state of the remaining tendons was poor. Then, the patients were allowed to bear weight as tolerated after removed the cast and physical therapy was initiated. Active joint exercises were started, and other muscle-strengthening exercises, such as cycling, passive joint exercise, stretching and heel rises, were gradually performed as comfort allowed.

In the final follow-up, the Hooker scale [13] (Table 2) was used to measure the ankle functional capacity in all patients. Ankle range of motion (plantar flexion and dorsiflexion) was measured using a goniometer. The patients were investigated regarding their capability to stand on tiptoe on the affected limb and the time required to return to pre-injury daily activities. The study was approved by our Institutional Review Board, and all patients provided informed consent.

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Table 2. The Hooker Assessment Scale

The clinical and functional outcomes of the patients are presented in Table 3. The mean follow-up was 19.6 months (range, 12 - 38 months), the mean interval between injury and surgical reconstruction was 42 days (range, 30 - 60 days) and the mean ruptured gap was 4 cm (range, 3 - 6 cm). The mean calf atrophy was 1.2 cm (range, 0 - 2.5 cm) at the end of follow-up. The mean time for patients to return to daily activity was 3.2 months (range, 2 - 5 months).

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Table 3. Clinical Outcomes of Patients

No patient had any limitation in the activities of daily living. The active and passive ankle range of motion was good. No patient could perform affected-side heel rise preoperatively, but all patients were able to do so at the end of follow-up. The Hooker scores were excellent for 11 patients and satisfactory for four patients. All tendons healed without complications. No infections, nerve injuries, or re-ruptures occurred inter- or postoperatively.

In our study, at a midterm follow-up (mean, 19 months), reconstruction of the chronic Achilles tendon ruptures via the Lindholm technique and primary repair with Vulpius’ method provided tendon healing and good clinical and functional outcomes. All of our patients had returned to their pre-injury daily activity level in 3 months. There was no functional deficit and the results were satisfactory in all patients.

Many surgical procedures have been described for reconstruction of the chronic Achilles tendon rupture, each with some advantages and disadvantages [2, 3, 5-8, 10]. In addition, despite many repair techniques having been described, there is no evidence-based guideline for deciding on the type of operative management for neglected Achilles ruptures [14, 15].

The gap between the tendon ends could not be closed with proper tension in the chronic Achilles tendon rupture. This can be achieved only by interposition of the gastrocnemius fascia with a central flap or double (medial and lateral) flaps in between the tendon ends [12, 16]. In addition, the plantaris longus tendon could be used as a supportive membrane. In all of our cases, the plantaris longus tendon was augmented to the tear area of the Achilles tendon.

In the Lindholm [12] surgical technique, two flaps harvested from the gastrocnemius facia and flat surfaces facing the skin are used by turning them 180° and, thus, preventing tendon adhesions. Hosey et al [17] reported satisfactory results using a modified Lindholm technique; however, none of their patients returned to their full preoperative athletic capabilities.

In other techniques, semitendinosus, flexor hallucis longus, tibialis posterior and peroneus brevis tendons have been used as free or pediculated transposition flaps [2, 5, 6, 18, 19]. Wapner et al [19] reported good functional results after the dynamic repair of chronic Achilles tendon ruptures with flexor hallucis longus tendons.

Simultaneously, good clinical results have been reported in chronic Achilles tendon ruptures reconstructed with synthetic materials and Achilles tendon allografts; however, these studies are limited in the literature [6, 8, 11, 18]. Although using Achilles allografts to reconstruct the chronic Achilles tendon ruptures provides surgical flexibility and convenience, the disadvantages may include rejection of the allograft, spread of infectious diseases and deep infection [6, 8, 11, 18].

Reconstruction of the chronically ruptured Achilles tendon may have some complications [5], such as adhesions, wound breakdown and infection [2, 5, 10]. Tendon adhesions are encountered more frequently in patients who had conservative treatment than in those who underwent reconstructive surgery, and a 2.6-45% complication rate has been reported [20]. In our study, we did not encounter any major complication (deep vein thrombosis, re-rupture and deep infections) or minor complication (hematoma and superficial wound infection).

Our study was limited by the small patient population because chronic Achilles tendon rupture is rare. In addition, we did not evaluate the strength of the plantar flexion of the affected foot compared to the normal side. Another limitation of our study is that surgical procedures were performed by multiple surgeons.

In conclusion, based on the findings of the current study, we recommend reconstruction of the chronic Achilles tendon ruptures via the Lindholm technique or primary repair with the Vulpius technique. Both are associated with good clinical and functional outcomes.

Competing Interests

The authors declare that they have no competing interests.

Grant Support

None.

Financial Disclosure

None.

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Journal of Clinical Medicine Research is published by Elmer Press Inc.