Oral and maxillofacial surgery
Autologous blood injection as a new treatment modality for chronic recurrent temporomandibular joint dislocation

https://doi.org/10.1016/j.tripleo.2009.08.002Get rights and content

Purpose

Many different surgical and nonsurgical techniques have been used to treat patients with chronic recurrent temporomandibular joint (TMJ) dislocation. The nonsurgical techniques consist of injecting different substances into the TMJ area. This study was carried out to assess autologous blood injection to the TMJ for treatment of chronic recurrent TMJ dislocation.

Patients and methods

Thirty patients having chronic recurrent TMJ dislocation were randomly divided into 2 equal groups (15 patients in each). Group A was treated only by autologous blood injection into the superior joint space (SJS), whereas group B received autologous blood injections to the SJS and the pericapsular tissues (PT).

Results

At the end of the follow-up period of 1 year, the results of the current study have showed that injection of autologous blood to the SJS and PT gave a higher success rate (80%) than its injection only into the SJS (60%). Moreover, the patients of group B had an average decrease in their maximal mouth opening (5.3 ± 2.1) higher than that of group A (3.6 ± 1.5). Also, the digital radiographic imaging of the joints in group B only showed the condylar head posterior to the articular eminence, in open position, instead of being anterior to it before the injection. In both groups, no destructive changes to the bony components of the joint have been observed.

Conclusions

We could conclude from this study that the injection of autologous blood into the TMJ in patients with chronic recurrent dislocation is a simple, safe and cost-effective technique. So, we encourage injection of autologous blood to the SJS and PT for treatment of patients with chronic recurrent TMJ dislocation, as it has shown better clinical and radiographic results than its injection only to the SJS.

Section snippets

Patients and Methods

Thirty patients coming to the Department of Oral and Maxillofacial Surgery, Faculty of Oral and Dental Medicine, Cairo University complaining of bilateral chronic recurrent dislocation were included in this study. They were diagnosed as having chronic recurrent TMJ dislocation based on the clinical and radiographic criteria of Nitzan.2 The patients were 12 males and 18 females, with an average age of 34 years (range from 20 to 56 years). Their maximal mouth opening, measured between maxillary

Results

In general, all patients tolerated the arthrocentesis procedures and the autologous blood injections without any serious complications either during the injection or later on during the follow-up period. The postoperative pain was tolerable in all patients and lasted only for few days after the injections. It was easily controlled by taking the previously prescribed nonsteroidal anti-inflammatory drugs.

At 2 weeks after the autologous blood injection, 11 patients (73%) of group A and 13 patients

Discussion

Hypermobility of the mandible is a condition characterized by an excessive looseness of the TMJ that permits excessive mandibular movements. The hypermobility is divided into subluxation and dislocation. During subluxation, the condyles ride over the articular eminence without staying locked there.20 This situation usually does not concern the patients. However, in dislocation the patient seeks treatment because the mandible locks while opening the mouth. This condition interferes with the

References (20)

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